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Core Data from the Deep Sea Drilling Project
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: UPPER MIOCENE
Hole: 438B Depth Top of Layer(m) : 571.50 Age: UPPER MIOCENE
Core: 1 Depth Bottom of Layer(m): 573.00 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTY CLAY
Screen Lith : MUD
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: UPPER MIOCENE
Hole: 438B Depth Top of Layer(m) : 573.00 Age: UPPER MIOCENE
Core: 1 Depth Bottom of Layer(m): 574.50 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 1.21/ 89 131
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTY CLAY
Screen Lith : MUD
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: UPPER MIOCENE
Hole: 438B Depth Top of Layer(m) : 574.50 Age: UPPER MIOCENE
Core: 1 Depth Bottom of Layer(m): 576.00 Age:
Sect: 3 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 1.33/ 82 98
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTY CLAY
Screen Lith : MUD
Leg : 57 Top/Bottom Interval(mm) : 00/ 460 Age: UPPER MIOCENE
Hole: 438B Depth Top of Layer(m) : 576.00 Age: UPPER MIOCENE
Core: 1 Depth Bottom of Layer(m): 576.46 Age:
Sect: 4 Thickness of Layer(m) : 0.46
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTY CLAY
Screen Lith : MUD
Leg : 57 Top/Bottom Interval(mm) : 00/ 100 Age: UPPER MIOCENE
Hole: 438B Depth Top of Layer(m) : 576.56 Age: UPPER MIOCENE
Core: 1 Depth Bottom of Layer(m): 576.66 Age:
Sect: CC Thickness of Layer(m) : 0.10
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTY CLAY
Screen Lith : MUD
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 661.50 Age: MIDDLE MIOCENE
Core: 2 Depth Bottom of Layer(m): 663.00 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAY
Screen Lith : CLAY
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 663.00 Age: MIDDLE MIOCENE
Core: 2 Depth Bottom of Layer(m): 664.50 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAY
Screen Lith : CLAY
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 664.50 Age: MIDDLE MIOCENE
Core: 2 Depth Bottom of Layer(m): 666.00 Age:
Sect: 3 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAY
Screen Lith : CLAY
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 666.00 Age: MIDDLE MIOCENE
Core: 2 Depth Bottom of Layer(m): 667.50 Age:
Sect: 4 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAY
Screen Lith : CLAY
Leg : 57 Top/Bottom Interval(mm) : 00/ 360 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 667.50 Age: MIDDLE MIOCENE
Core: 2 Depth Bottom of Layer(m): 667.86 Age:
Sect: 5 Thickness of Layer(m) : 0.36
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAY
Screen Lith : CLAY
Leg : 57 Top/Bottom Interval(mm) : 00/ 50 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 667.96 Age: MIDDLE MIOCENE
Core: 2 Depth Bottom of Layer(m): 668.01 Age:
Sect: CC Thickness of Layer(m) : 0.05
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAY
Screen Lith : CLAY
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 786.00 Age: MIDDLE MIOCENE
Core: 3 Depth Bottom of Layer(m): 787.50 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : MOD
Screen Lith : DIATOM RICH CLAYSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 787.50 Age: MIDDLE MIOCENE
Core: 3 Depth Bottom of Layer(m): 789.00 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : DIATOM RICH CLAYSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 370 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 789.00 Age: MIDDLE MIOCENE
Core: 3 Depth Bottom of Layer(m): 789.37 Age:
Sect: 3 Thickness of Layer(m) : 0.37
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOMACEOUSLY CLAYSTONE
Screen Lith : DIATOM RICH CLAYSTONE
Leg : 57 Top/Bottom Interval(mm) : 170/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 853.47 Age: MIDDLE MIOCENE
Core: 4 Depth Bottom of Layer(m): 854.80 Age:
Sect: 1 Thickness of Layer(m) : 1.33
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 5 95 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLAY MINERAL RICH GLASS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 854.80 Age: MIDDLE MIOCENE
Core: 4 Depth Bottom of Layer(m): 856.30 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 18 82 1.30/ 83 126
Processing Hist: Classification was successful.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : TERRIGENOUS DETRITUS RICH CLAY MINERAL RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 856.30 Age: MIDDLE MIOCENE
Core: 4 Depth Bottom of Layer(m): 857.80 Age:
Sect: 3 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 10 90 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : QUARTZ RICH CLAY MINERAL RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 210/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 858.01 Age: MIDDLE MIOCENE
Core: 4 Depth Bottom of Layer(m): 859.30 Age:
Sect: 4 Thickness of Layer(m) : 1.29
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 90 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : QUARTZ RICH CLAY MINERAL RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 859.30 Age: MIDDLE MIOCENE
Core: 4 Depth Bottom of Layer(m): 860.80 Age:
Sect: 5 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 90 1.34/ 81 148
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 100/1100 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 860.90 Age: MIDDLE MIOCENE
Core: 4 Depth Bottom of Layer(m): 861.90 Age:
Sect: 6 Thickness of Layer(m) : 1.00
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/1380 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 862.30 Age: MIDDLE MIOCENE
Core: 4 Depth Bottom of Layer(m): 863.68 Age:
Sect: 7 Thickness of Layer(m) : 1.38
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 1.32/ 82 113
Processing Hist:
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/ 210 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 863.78 Age: MIDDLE MIOCENE
Core: 4 Depth Bottom of Layer(m): 863.99 Age:
Sect: CC Thickness of Layer(m) : 0.21
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/1300 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 862.70 Age: MIDDLE MIOCENE
Core: 5 Depth Bottom of Layer(m): 864.00 Age:
Sect: 1 Thickness of Layer(m) : 1.30
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 14 87 /
Processing Hist:
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 864.10 Age: MIDDLE MIOCENE
Core: 5 Depth Bottom of Layer(m): 864.30 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 438B Depth Top of Layer(m) : 872.10 Age: MIDDLE MIOCENE
Core: 6 Depth Bottom of Layer(m): 873.60 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 11 89 1.38/ 79 113
Processing Hist: Classification was successful.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 873.60 Age: LOWER MIOCENE
Core: 6 Depth Bottom of Layer(m): 875.10 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 2 98 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : GLASS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 430 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 875.10 Age: LOWER MIOCENE
Core: 6 Depth Bottom of Layer(m): 875.53 Age:
Sect: 3 Thickness of Layer(m) : 0.43
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 98 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 875.63 Age: LOWER MIOCENE
Core: 6 Depth Bottom of Layer(m): 875.83 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 98 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 600 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 881.50 Age: LOWER MIOCENE
Core: 7 Depth Bottom of Layer(m): 882.10 Age:
Sect: 1 Thickness of Layer(m) : 0.60
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 98 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DRILL CUTTINGS
Screen Lith : DIATOM RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 600/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 882.10 Age: LOWER MIOCENE
Core: 7 Depth Bottom of Layer(m): 883.00 Age:
Sect: 1 Thickness of Layer(m) : 0.90
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 12 88 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 883.00 Age: LOWER MIOCENE
Core: 7 Depth Bottom of Layer(m): 884.50 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 10 90 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1050 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 884.50 Age: LOWER MIOCENE
Core: 7 Depth Bottom of Layer(m): 885.55 Age:
Sect: 3 Thickness of Layer(m) : 1.05
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 12 88 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 100 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 885.65 Age: LOWER MIOCENE
Core: 7 Depth Bottom of Layer(m): 885.75 Age:
Sect: CC Thickness of Layer(m) : 0.10
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1430 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 890.90 Age: LOWER MIOCENE
Core: 8 Depth Bottom of Layer(m): 892.33 Age:
Sect: 1 Thickness of Layer(m) : 1.43
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
5 10 86 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 892.43 Age: LOWER MIOCENE
Core: 8 Depth Bottom of Layer(m): 892.63 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1300 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 900.30 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 901.60 Age:
Sect: 1 Thickness of Layer(m) : 1.30
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 7 93 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1140 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 901.80 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 902.94 Age:
Sect: 2 Thickness of Layer(m) : 1.14
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 5 95 /
Processing Hist: Classification was successful.
Shipboard Lith : SANDY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1050 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 903.30 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 904.35 Age:
Sect: 3 Thickness of Layer(m) : 1.05
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 5 95 /
Processing Hist: Classification was successful.
Shipboard Lith : VITRIC COARSE SANDY SILTY CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH SANDY MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 904.45 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 904.65 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : SILTY CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/ 340 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 909.70 Age: LOWER MIOCENE
Core: 10 Depth Bottom of Layer(m): 910.04 Age:
Sect: 1 Thickness of Layer(m) : 0.34
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : SILTY CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/ 80 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 910.14 Age: LOWER MIOCENE
Core: 10 Depth Bottom of Layer(m): 910.22 Age:
Sect: CC Thickness of Layer(m) : 0.08
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : CALCAREOUS SILTY SANDY CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 919.20 Age: LOWER MIOCENE
Core: 11 Depth Bottom of Layer(m): 920.70 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
2 23 75 1.33/ 82 95
Processing Hist:
Shipboard Lith : SANDY-SILTY CLAYSTONE (VITRIC)
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/ 720 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 920.70 Age: LOWER MIOCENE
Core: 11 Depth Bottom of Layer(m): 921.42 Age:
Sect: 2 Thickness of Layer(m) : 0.72
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/ 80 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 921.52 Age: LOWER MIOCENE
Core: 11 Depth Bottom of Layer(m): 921.60 Age:
Sect: CC Thickness of Layer(m) : 0.08
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : SILTY DIATOM
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 928.70 Age: LOWER MIOCENE
Core: 12 Depth Bottom of Layer(m): 930.20 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : DIATOMACEOUS VITRIC(SILT/SAND)CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/1120 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 930.20 Age: LOWER MIOCENE
Core: 12 Depth Bottom of Layer(m): 931.32 Age:
Sect: 2 Thickness of Layer(m) : 1.12
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
3 0 0 1.35/ 80 66
Processing Hist:
Shipboard Lith : MUD
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 1120/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 931.32 Age: LOWER MIOCENE
Core: 12 Depth Bottom of Layer(m): 931.70 Age:
Sect: 2 Thickness of Layer(m) : 0.38
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
14 13 73 1.42/ 77 40
Processing Hist: Classification was successful.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 931.70 Age: LOWER MIOCENE
Core: 12 Depth Bottom of Layer(m): 933.20 Age:
Sect: 3 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 1.34/ 81 85
Processing Hist:
Shipboard Lith : DIATOM
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 850 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 933.20 Age: LOWER MIOCENE
Core: 12 Depth Bottom of Layer(m): 934.05 Age:
Sect: 4 Thickness of Layer(m) : 0.85
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 1.37/ 79 79
Processing Hist:
Shipboard Lith : DIATOM
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 850/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 934.05 Age: LOWER MIOCENE
Core: 12 Depth Bottom of Layer(m): 934.70 Age:
Sect: 4 Thickness of Layer(m) : 0.65
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
10 27 63 1.49/ 72 68
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1020 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 934.70 Age: LOWER MIOCENE
Core: 12 Depth Bottom of Layer(m): 935.72 Age:
Sect: 5 Thickness of Layer(m) : 1.02
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
9 11 80 1.45/ 75 52
Processing Hist: Classification was successful.
Shipboard Lith : DIATOMACEOUS CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 938.10 Age: LOWER MIOCENE
Core: 13 Depth Bottom of Layer(m): 939.60 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
12 24 64 1.29/ 84 105
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 939.60 Age: LOWER MIOCENE
Core: 13 Depth Bottom of Layer(m): 941.10 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
2 0 0 1.34/ 81 151
Processing Hist:
Shipboard Lith : DIATOM
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 650 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 941.10 Age: LOWER MIOCENE
Core: 13 Depth Bottom of Layer(m): 941.75 Age:
Sect: 3 Thickness of Layer(m) : 0.65
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
4 15 81 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 941.85 Age: LOWER MIOCENE
Core: 13 Depth Bottom of Layer(m): 942.05 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 947.60 Age: LOWER MIOCENE
Core: 14 Depth Bottom of Layer(m): 947.80 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 956.90 Age: LOWER MIOCENE
Core: 15 Depth Bottom of Layer(m): 958.40 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
4 12 84 1.40/ 78 81
Processing Hist: Classification was successful.
Shipboard Lith : VITRIC DIATOM
Screen Lith : TERRIGENOUS DETRITUS RICH CLAY MINERAL RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1090 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 958.40 Age: LOWER MIOCENE
Core: 15 Depth Bottom of Layer(m): 959.49 Age:
Sect: 2 Thickness of Layer(m) : 1.09
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
1 5 94 1.46/ 74 50
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE
Screen Lith : FELDSPAR RICH GLASS RICH SANDY MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 959.59 Age: LOWER MIOCENE
Core: 15 Depth Bottom of Layer(m): 959.79 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 94 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYSTONE
Screen Lith : SANDY MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 966.30 Age: LOWER MIOCENE
Core: 16 Depth Bottom of Layer(m): 967.50 Age:
Sect: 1 Thickness of Layer(m) : 1.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
2 13 86 1.40/ 78 89
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 967.60 Age: LOWER MIOCENE
Core: 16 Depth Bottom of Layer(m): 967.80 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1400 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 975.70 Age: LOWER MIOCENE
Core: 17 Depth Bottom of Layer(m): 977.10 Age:
Sect: 1 Thickness of Layer(m) : 1.40
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 1.58/ 67 123
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY? F
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 977.20 Age: LOWER MIOCENE
Core: 17 Depth Bottom of Layer(m): 978.70 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 1.62/ 64 153
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 650 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 978.70 Age: LOWER MIOCENE
Core: 17 Depth Bottom of Layer(m): 979.35 Age:
Sect: 3 Thickness of Layer(m) : 0.65
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 979.45 Age: LOWER MIOCENE
Core: 17 Depth Bottom of Layer(m): 979.65 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 86 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 985.20 Age: LOWER MIOCENE
Core: 18 Depth Bottom of Layer(m): 986.70 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 100 1.64/ 63 144
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 986.70 Age: LOWER MIOCENE
Core: 18 Depth Bottom of Layer(m): 988.20 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
1 2 98 1.72/ 59 126
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 988.20 Age: LOWER MIOCENE
Core: 18 Depth Bottom of Layer(m): 989.70 Age:
Sect: 3 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 2 98 1.68/ 61 155
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 989.70 Age: LOWER MIOCENE
Core: 18 Depth Bottom of Layer(m): 991.20 Age:
Sect: 4 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 1.80/ 53 158
Processing Hist:
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1030 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 991.20 Age: LOWER MIOCENE
Core: 18 Depth Bottom of Layer(m): 992.23 Age:
Sect: 5 Thickness of Layer(m) : 1.03
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 2 98 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 992.33 Age: LOWER MIOCENE
Core: 18 Depth Bottom of Layer(m): 992.53 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 98 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 100/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 994.90 Age: LOWER MIOCENE
Core: 19 Depth Bottom of Layer(m): 996.30 Age:
Sect: 1 Thickness of Layer(m) : 1.40
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 2 98 /
Processing Hist: Classification was successful.
Shipboard Lith : GLAUCONITIC CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 830 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 996.30 Age: LOWER MIOCENE
Core: 19 Depth Bottom of Layer(m): 997.13 Age:
Sect: 2 Thickness of Layer(m) : 0.83
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 2 98 /
Processing Hist: Classification was successful.
Shipboard Lith : GLAUCONITIC CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 997.80 Age: LOWER MIOCENE
Core: 19 Depth Bottom of Layer(m): 999.30 Age:
Sect: 3 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 4 96 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 999.30 Age: LOWER MIOCENE
Core: 19 Depth Bottom of Layer(m): 1000.80 Age:
Sect: 4 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 4 96 1.66/ 62 150
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1000.80 Age: LOWER MIOCENE
Core: 19 Depth Bottom of Layer(m): 1002.30 Age:
Sect: 5 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : GLAUCONITIC CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1002.30 Age: LOWER MIOCENE
Core: 19 Depth Bottom of Layer(m): 1003.80 Age:
Sect: 6 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : GLAUCONITIC CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 960 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1003.80 Age: LOWER MIOCENE
Core: 19 Depth Bottom of Layer(m): 1004.76 Age:
Sect: 7 Thickness of Layer(m) : 0.96
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 100 /
Processing Hist: Classification was successful.
Shipboard Lith : GLAUCONITIC CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1004.86 Age: LOWER MIOCENE
Core: 19 Depth Bottom of Layer(m): 1005.06 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 100 /
Processing Hist: Classification was successful.
Shipboard Lith : GLAUC
Screen Lith : GLAUCONITE RICH SANDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1004.40 Age: LOWER MIOCENE
Core: 20 Depth Bottom of Layer(m): 1005.90 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 2 98 /
Processing Hist: Classification was successful.
Shipboard Lith : GLAUC
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1005.90 Age: LOWER MIOCENE
Core: 20 Depth Bottom of Layer(m): 1007.40 Age:
Sect: 2 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 1.78/ 55 156
Processing Hist:
Shipboard Lith : GLAUCONITIC SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1007.40 Age: LOWER MIOCENE
Core: 20 Depth Bottom of Layer(m): 1008.90 Age:
Sect: 3 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : ****** NO LITH GIVEN ***
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1008.90 Age: LOWER MIOCENE
Core: 20 Depth Bottom of Layer(m): 1010.40 Age:
Sect: 4 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 1.76/ 56 157
Processing Hist:
Shipboard Lith : SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1010.40 Age: LOWER MIOCENE
Core: 20 Depth Bottom of Layer(m): 1011.90 Age:
Sect: 5 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 3 97 /
Processing Hist: Classification was successful.
Shipboard Lith : SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 260 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1011.90 Age: LOWER MIOCENE
Core: 20 Depth Bottom of Layer(m): 1012.16 Age:
Sect: 6 Thickness of Layer(m) : 0.26
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : SILTY CLAYSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1012.26 Age: LOWER MIOCENE
Core: 20 Depth Bottom of Layer(m): 1012.46 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : SILTY CLAYSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 100/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1014.10 Age: LOWER MIOCENE
Core: 21 Depth Bottom of Layer(m): 1015.50 Age:
Sect: 1 Thickness of Layer(m) : 1.40
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 /
Processing Hist:
Shipboard Lith : SILTY CLAYSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1015.50 Age: LOWER MIOCENE
Core: 21 Depth Bottom of Layer(m): 1016.00 Age:
Sect: 2 Thickness of Layer(m) : 0.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 1.59/ 66 39
Processing Hist:
Shipboard Lith : SILTY CLAYSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 500/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1016.00 Age: LOWER MIOCENE
Core: 21 Depth Bottom of Layer(m): 1017.00 Age:
Sect: 2 Thickness of Layer(m) : 1.00
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 2 98 1.64/ 63 105
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1017.00 Age: LOWER MIOCENE
Core: 21 Depth Bottom of Layer(m): 1018.50 Age:
Sect: 3 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 0 1.62/ 64 151
Processing Hist:
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1018.50 Age: LOWER MIOCENE
Core: 21 Depth Bottom of Layer(m): 1020.00 Age:
Sect: 4 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 1 99 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILTSTONE
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 70/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1020.07 Age: LOWER MIOCENE
Core: 21 Depth Bottom of Layer(m): 1020.20 Age:
Sect: CC Thickness of Layer(m) : 0.13
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 99 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : MUDSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1023.40 Age: LOWER MIOCENE
Core: 22 Depth Bottom of Layer(m): 1024.90 Age:
Sect: 1 Thickness of Layer(m) : 1.50
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 3 97 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 430 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1024.90 Age: LOWER MIOCENE
Core: 22 Depth Bottom of Layer(m): 1025.33 Age:
Sect: 2 Thickness of Layer(m) : 0.43
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1025.43 Age: LOWER MIOCENE
Core: 22 Depth Bottom of Layer(m): 1025.63 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/1370 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1032.80 Age: LOWER MIOCENE
Core: 23 Depth Bottom of Layer(m): 1034.17 Age:
Sect: 1 Thickness of Layer(m) : 1.37
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 1.41/ 77 88
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 250/1500 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1034.55 Age: LOWER MIOCENE
Core: 23 Depth Bottom of Layer(m): 1035.80 Age:
Sect: 2 Thickness of Layer(m) : 1.25
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 1.54/ 69 117
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 550 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1035.80 Age: LOWER MIOCENE
Core: 23 Depth Bottom of Layer(m): 1036.35 Age:
Sect: 3 Thickness of Layer(m) : 0.55
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1036.45 Age: LOWER MIOCENE
Core: 23 Depth Bottom of Layer(m): 1036.65 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTSTONE
Screen Lith : MUDSTONE
Leg : 57 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER MIOCENE
Hole: 438B Depth Top of Layer(m) : 1039.30 Age: LOWER MIOCENE
Core: 24 Depth Bottom of Layer(m): 1039.50 Age:
Sect: CC Thickness of Layer(m) : 0.20
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTSTONE
Screen Lith : MUDSTONE
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Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP). National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]
Please see NOAA's privacy and disclaimer information. Send questions or comments to mgg.info@noaa.gov.
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