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Core Data from the Deep Sea Drilling Project
Leg : 28 Top/Bottom Interval(mm) : 800/ 940 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 0.80 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 0.94 Age:
Sect: 1 Thickness of Layer(m) : 0.14
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 95 5 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM OOZE
Screen Lith : DIATOM OOZE
Leg : 28 Top/Bottom Interval(mm) : 940/1500 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 0.94 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 1.50 Age:
Sect: 1 Thickness of Layer(m) : 0.56
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 60 40 /
Processing Hist: Classification was successful.
Shipboard Lith : SILTY CLAY DIATOM OOZE
Screen Lith : CLAY MINERAL RICH MUDDY DIATOM OOZE
Leg : 28 Top/Bottom Interval(mm) : 00/ 900 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 1.50 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 2.40 Age:
Sect: 2 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 0 0 /
Processing Hist:
Shipboard Lith : SILTY CLAY DIATOM OOZE AND DIATOM BEARING SILTY CLAY
Screen Lith : SILICEOUS SEDIMENT.
Leg : 28 Top/Bottom Interval(mm) : 900/1500 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 2.40 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 3.00 Age:
Sect: 2 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 0 /
Processing Hist:
Shipboard Lith : DIATOM OOZE
Screen Lith : SILICEOUS SEDIMENT.
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 3.00 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 4.50 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
========== ========= ======== ================ ============
5 84 11 /
Processing Hist: Classification was successful.
Shipboard Lith : SILTY CLAY DIATOM OOZE
Screen Lith : TERRIGENOUS DETRITUS RICH DIATOM OOZE
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 4.50 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 6.00 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
========== ========= ======== ================ ============
25 40 11 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOM BEARING SILTY CLAY
Screen Lith : DIATOM MUDSTONE
Leg : 28 Top/Bottom Interval(mm) : 00/ 250 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 6.00 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 6.25 Age:
Sect: 5 Thickness of Layer(m) : 0.25
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
25 40 11 1.31/ 83 25
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOM BEARING CLAYEY SILT
Screen Lith : DIATOM MUDSTONE
Leg : 28 Top/Bottom Interval(mm) : 250/ 560 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 6.25 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 6.56 Age:
Sect: 5 Thickness of Layer(m) : 0.31
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 11 1.88/ 49 33
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : VERY FINE SAND
Screen Lith : SAND
Leg : 28 Top/Bottom Interval(mm) : 560/ 660 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 6.56 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 6.66 Age:
Sect: 5 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
========== ========= ======== ================ ============
25 40 11 1.72/ 58 11
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOM BEARING CLAYEY SILT
Screen Lith : DIATOM MUDSTONE
Leg : 28 Top/Bottom Interval(mm) : 720/1240 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 6.72 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 7.24 Age:
Sect: 5 Thickness of Layer(m) : 0.52
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 5 95 1.61/ 65 56
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM BEARING CLAYEY SILT
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 1240/1300 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 7.24 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 7.30 Age:
Sect: 5 Thickness of Layer(m) : 0.06
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 95 1.72/ 58 6
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : VERY FINE SAND
Screen Lith : SAND
Leg : 28 Top/Bottom Interval(mm) : 1300/1500 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 7.30 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 7.50 Age:
Sect: 5 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
========== ========= ======== ================ ============
25 40 95 1.57/ 67 21
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOM BEARING CLAYEY SILT
Screen Lith : DIATOM MUDSTONE
Leg : 28 Top/Bottom Interval(mm) : 00/ 370 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 7.50 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 7.87 Age:
Sect: 6 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 4 96 1.45/ 74 30
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILT
Screen Lith : FELDSPAR RICH QUARTZ RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 370/ 510 Age: QUATERNARY
Hole: 269 Depth Top of Layer(m) : 7.87 Age: QUATERNARY
Core: 1 Depth Bottom of Layer(m): 8.01 Age:
Sect: 6 Thickness of Layer(m) : 0.14
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 96 1.88/ 49 15
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : FINE SAND
Screen Lith : SAND
Leg : 28 Top/Bottom Interval(mm) : 510/ 680 Age:
Hole: 269 Depth Top of Layer(m) : 8.01 Age:
Core: 1 Depth Bottom of Layer(m): 8.18 Age:
Sect: 6 Thickness of Layer(m) : 0.17
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 6 94 1.81/ 53 18
Processing Hist: Classification was successful.
Shipboard Lith : CLAYEY SILT
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 680/1200 Age:
Hole: 269 Depth Top of Layer(m) : 8.18 Age:
Core: 1 Depth Bottom of Layer(m): 8.70 Age:
Sect: 6 Thickness of Layer(m) : 0.52
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 94 1.56/ 68 55
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTY SAND
Screen Lith : SAND
Leg : 28 Top/Bottom Interval(mm) : 1200/1440 Age:
Hole: 269 Depth Top of Layer(m) : 8.70 Age:
Core: 1 Depth Bottom of Layer(m): 8.94 Age:
Sect: 6 Thickness of Layer(m) : 0.24
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 94 1.76/ 56 26
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY SILT
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age:
Hole: 269 Depth Top of Layer(m) : 9.10 Age:
Core: 1 Depth Bottom of Layer(m): 9.10 Age:
Sect: CC Thickness of Layer(m) : 0.00
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 : SILTY SAND
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH SAND
Leg : 28 Top/Bottom Interval(mm) : 1010/1500 Age: PLIOCENE
Hole: 269 Depth Top of Layer(m) : 47.01 Age: PLIOCENE
Core: 2 Depth Bottom of Layer(m): 47.50 Age:
Sect: 1 Thickness of Layer(m) : 0.49
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 96 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTY CLAY
Screen Lith : MUD
Leg : 28 Top/Bottom Interval(mm) : 00/1460 Age: PLIOCENE
Hole: 269 Depth Top of Layer(m) : 47.50 Age: PLIOCENE
Core: 2 Depth Bottom of Layer(m): 48.96 Age:
Sect: 2 Thickness of Layer(m) : 1.46
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 96 1.51/ 71 148
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTY CLAY
Screen Lith : MUD
Leg : 28 Top/Bottom Interval(mm) : 00/ 820 Age: PLIOCENE
Hole: 269 Depth Top of Layer(m) : 49.00 Age: PLIOCENE
Core: 2 Depth Bottom of Layer(m): 49.82 Age:
Sect: 3 Thickness of Layer(m) : 0.82
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 9 92 1.60/ 66 84
Processing Hist: Classification was successful.
Shipboard Lith : SILTY CLAY
Screen Lith : QUARTZ RICH CLAY MINERAL RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 820/ 880 Age: PLIOCENE
Hole: 269 Depth Top of Layer(m) : 49.82 Age: PLIOCENE
Core: 2 Depth Bottom of Layer(m): 49.88 Age:
Sect: 3 Thickness of Layer(m) : 0.06
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 92 1.89/ 49 6
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : VERY FINE SAND
Screen Lith : SAND
Leg : 28 Top/Bottom Interval(mm) : 880/1500 Age: PLIOCENE
Hole: 269 Depth Top of Layer(m) : 49.88 Age: PLIOCENE
Core: 2 Depth Bottom of Layer(m): 50.50 Age:
Sect: 3 Thickness of Layer(m) : 0.62
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 14 86 1.73/ 58 66
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM RICH SILTY CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: PLIOCENE
Hole: 269 Depth Top of Layer(m) : 50.60 Age: PLIOCENE
Core: 2 Depth Bottom of Layer(m): 50.60 Age:
Sect: CC Thickness of Layer(m) : 0.00
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 FINE SAND
Screen Lith : SAND
Leg : 28 Top/Bottom Interval(mm) : 300/1500 Age: PLIOCENE
Hole: 269 Depth Top of Layer(m) : 93.80 Age: PLIOCENE
Core: 3 Depth Bottom of Layer(m): 95.00 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
========== ========= ======== ================ ============
0 0 86 1.45/ 74 120
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY SILT
Screen Lith : MUD
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: PLIOCENE
Hole: 269 Depth Top of Layer(m) : 95.00 Age: PLIOCENE
Core: 3 Depth Bottom of Layer(m): 96.50 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 1.52/ 71 158
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY SILT
Screen Lith : MUD
Leg : 28 Top/Bottom Interval(mm) : 00/1380 Age: PLIOCENE
Hole: 269 Depth Top of Layer(m) : 96.50 Age: PLIOCENE
Core: 3 Depth Bottom of Layer(m): 97.88 Age:
Sect: 3 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 86 1.52/ 70 132
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY SILT
Screen Lith : MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: MIOCENE
Hole: 269 Depth Top of Layer(m) : 98.10 Age: MIOCENE
Core: 3 Depth Bottom of Layer(m): 98.10 Age:
Sect: CC Thickness of Layer(m) : 0.00
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 : DIATOM BEARING CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH CLAY
Leg : 28 Top/Bottom Interval(mm) : 480/1500 Age: UPPER MIOCENE
Hole: 269 Depth Top of Layer(m) : 141.48 Age: UPPER MIOCENE
Core: 4 Depth Bottom of Layer(m): 142.50 Age:
Sect: 1 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
========== ========= ======== ================ ============
0 0 95 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYEY SILT
Screen Lith : MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: UPPER MIOCENE
Hole: 269 Depth Top of Layer(m) : 142.60 Age: UPPER MIOCENE
Core: 4 Depth Bottom of Layer(m): 142.60 Age:
Sect: CC Thickness of Layer(m) : 0.00
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 2 98 /
Processing Hist: Classification was successful.
Shipboard Lith : SILTY CLAY
Screen Lith : MICA RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 1250/1500 Age: UPPER MIOCENE
Hole: 269 Depth Top of Layer(m) : 189.75 Age: UPPER MIOCENE
Core: 5 Depth Bottom of Layer(m): 190.00 Age:
Sect: 1 Thickness of Layer(m) : 0.25
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 : CLAY
Screen Lith : QUARTZ RICH CLAY MINERAL RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: UPPER MIOCENE
Hole: 269 Depth Top of Layer(m) : 190.10 Age: UPPER MIOCENE
Core: 5 Depth Bottom of Layer(m): 190.10 Age:
Sect: CC Thickness of Layer(m) : 0.00
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 8 92 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM BEARING SILTY CLAY
Screen Lith : QUARTZ RICH CLAY MINERAL RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 800/1500 Age: UPPER MIOCENE
Hole: 269 Depth Top of Layer(m) : 198.80 Age: UPPER MIOCENE
Core: 6 Depth Bottom of Layer(m): 199.50 Age:
Sect: 1 Thickness of Layer(m) : 0.70
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 92 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAY
Screen Lith : CLAY
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: UPPER MIOCENE
Hole: 269 Depth Top of Layer(m) : 199.50 Age: UPPER MIOCENE
Core: 6 Depth Bottom of Layer(m): 201.00 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 92 1.51/ 71 159
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAY
Screen Lith : CLAY
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: UPPER MIOCENE
Hole: 269 Depth Top of Layer(m) : 201.00 Age: UPPER MIOCENE
Core: 6 Depth Bottom of Layer(m): 202.50 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 4 96 1.55/ 69 154
Processing Hist: Classification was successful.
Shipboard Lith : CLAY
Screen Lith : QUARTZ RICH SILT
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: UPPER MIOCENE
Hole: 269 Depth Top of Layer(m) : 202.50 Age: UPPER MIOCENE
Core: 6 Depth Bottom of Layer(m): 204.00 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 0 96 1.56/ 68 155
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : SILTY CLAY
Screen Lith : MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: UPPER MIOCENE
Hole: 269 Depth Top of Layer(m) : 204.10 Age: UPPER MIOCENE
Core: 6 Depth Bottom of Layer(m): 204.10 Age:
Sect: CC Thickness of Layer(m) : 0.00
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 22 78 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM RICH CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 630/1500 Age: MIDDLE MIOCENE
Hole: 269 Depth Top of Layer(m) : 246.13 Age: MIDDLE MIOCENE
Core: 7 Depth Bottom of Layer(m): 247.00 Age:
Sect: 1 Thickness of Layer(m) : 0.87
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
3 20 77 /
Processing Hist: Classification was successful.
Shipboard Lith : NANNO BEARING DIATOM SILTY CLAY
Screen Lith : DIATOM RICH CLAY MINERAL RICH MUDSTONE
Leg : 28 Top/Bottom Interval(mm) : 00/ 650 Age: MIDDLE MIOCENE
Hole: 269 Depth Top of Layer(m) : 247.00 Age: MIDDLE MIOCENE
Core: 7 Depth Bottom of Layer(m): 247.65 Age:
Sect: 2 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
========== ========= ======== ================ ============
50 35 77 1.39/ 78 58
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOM RICH CLAY NANNO OOZE
Screen Lith : DIATOM RICH NANNOFOSSIL OOZE
Leg : 28 Top/Bottom Interval(mm) : 650/1450 Age: MIDDLE MIOCENE
Hole: 269 Depth Top of Layer(m) : 247.65 Age: MIDDLE MIOCENE
Core: 7 Depth Bottom of Layer(m): 248.45 Age:
Sect: 2 Thickness of Layer(m) : 0.80
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 22 78 1.57/ 67 85
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM BEARING SILTY CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: MIDDLE MIOCENE
Hole: 269 Depth Top of Layer(m) : 248.50 Age: MIDDLE MIOCENE
Core: 7 Depth Bottom of Layer(m): 250.00 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 32 68 1.55/ 69 158
Processing Hist: Classification was successful.
Shipboard Lith : SILTY CLAY
Screen Lith : TERRIGENOUS DETRITUS RICH DIATOM MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: MIDDLE MIOCENE
Hole: 269 Depth Top of Layer(m) : 250.10 Age: MIDDLE MIOCENE
Core: 7 Depth Bottom of Layer(m): 250.10 Age:
Sect: CC Thickness of Layer(m) : 0.00
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 32 68 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM SILTY CLAY
Screen Lith : TERRIGENOUS DETRITUS RICH DIATOM MUD
Leg : 28 Top/Bottom Interval(mm) : 1290/1500 Age: MIDDLE MIOCENE
Hole: 269 Depth Top of Layer(m) : 294.29 Age: MIDDLE MIOCENE
Core: 8 Depth Bottom of Layer(m): 294.50 Age:
Sect: 1 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 22 78 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM RICH CLAYEY SILT
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: MIDDLE MIOCENE
Hole: 269 Depth Top of Layer(m) : 294.60 Age: MIDDLE MIOCENE
Core: 8 Depth Bottom of Layer(m): 294.60 Age:
Sect: CC Thickness of Layer(m) : 0.00
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 8 92 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM BEARING SILTY CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 320/1500 Age: LOWER MIOCENE
Hole: 269 Depth Top of Layer(m) : 331.32 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 332.50 Age:
Sect: 1 Thickness of Layer(m) : 1.18
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 7 93 1.51/ 71 110
Processing Hist: Classification was successful.
Shipboard Lith : CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 269 Depth Top of Layer(m) : 332.50 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 334.00 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 93 1.58/ 67 159
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 269 Depth Top of Layer(m) : 334.00 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 335.50 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
========== ========= ======== ================ ============
2 6 92 1.56/ 68 154
Processing Hist: Classification was successful.
Shipboard Lith : CLAY
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 00/ 920 Age: LOWER MIOCENE
Hole: 269 Depth Top of Layer(m) : 335.50 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 336.42 Age:
Sect: 4 Thickness of Layer(m) : 0.92
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 2 98 1.61/ 65 94
Processing Hist: Classification was successful.
Shipboard Lith : SILTY CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 920/1200 Age: LOWER MIOCENE
Hole: 269 Depth Top of Layer(m) : 336.42 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 336.70 Age:
Sect: 4 Thickness of Layer(m) : 0.28
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 9 91 1.69/ 60 30
Processing Hist: Classification was successful.
Shipboard Lith : SILT AND CLAYEY SILT
Screen Lith : QUARTZ RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 1200/1500 Age: LOWER MIOCENE
Hole: 269 Depth Top of Layer(m) : 336.70 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 337.00 Age:
Sect: 4 Thickness of Layer(m) : 0.30
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 4 96 1.58/ 67 31
Processing Hist: Classification was successful.
Shipboard Lith : CLAY
Screen Lith : CLAY MINERAL RICH CLAY
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: LOWER MIOCENE
Hole: 269 Depth Top of Layer(m) : 337.00 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 338.50 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 20 80 1.66/ 62 158
Processing Hist: Classification was successful.
Shipboard Lith : CLAY AND SILTY CLAY
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: LOWER MIOCENE
Hole: 269 Depth Top of Layer(m) : 338.60 Age: LOWER MIOCENE
Core: 9 Depth Bottom of Layer(m): 338.60 Age:
Sect: CC Thickness of Layer(m) : 0.00
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 32 68 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM CLAYEY SILT
Screen Lith : TERRIGENOUS DETRITUS RICH DIATOM MUD
Leg : 28 Top/Bottom Interval(mm) : 1300/1500 Age:
Hole: 269 Depth Top of Layer(m) : 360.80 Age:
Core: 10 Depth Bottom of Layer(m): 361.00 Age:
Sect: 1 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
========== ========= ======== ================ ============
35 50 68 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CHERT
Screen Lith : CHERT
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age:
Hole: 269 Depth Top of Layer(m) : 361.00 Age:
Core: 10 Depth Bottom of Layer(m): 362.50 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 68 1.57/ 67 151
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DRILLING BRECCIA THROUGHOUT
Screen Lith : MUD
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age:
Hole: 269 Depth Top of Layer(m) : 362.50 Age:
Core: 10 Depth Bottom of Layer(m): 364.00 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 68 1.73/ 58 150
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DRILLING BRECCIA
Screen Lith : MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age:
Hole: 269 Depth Top of Layer(m) : 364.10 Age:
Core: 10 Depth Bottom of Layer(m): 364.10 Age:
Sect: CC Thickness of Layer(m) : 0.00
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 : CHERT
Screen Lith : CLAY MINERAL RICH TERRIGENOUS DETRITUS RICH MUDSTONE
Leg : 28 Top/Bottom Interval(mm) : 1200/1500 Age:
Hole: 269 Depth Top of Layer(m) : 389.20 Age:
Core: 11 Depth Bottom of Layer(m): 389.50 Age:
Sect: 1 Thickness of Layer(m) : 0.30
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 : CHERTIFIED CLAYSTONE
Screen Lith : OTHER SILICEOUS RICH CLAYSTONE
Leg : 28 Top/Bottom Interval(mm) : 00/ 580 Age:
Hole: 269 Depth Top of Layer(m) : 389.50 Age:
Core: 11 Depth Bottom of Layer(m): 390.08 Age:
Sect: 2 Thickness of Layer(m) : 0.58
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 1.71/ 59 52
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYSTONE
Screen Lith : OTHER SILICEOUS RICH CLAYSTONE
Leg : 28 Top/Bottom Interval(mm) : 580/ 630 Age:
Hole: 269 Depth Top of Layer(m) : 390.08 Age:
Core: 11 Depth Bottom of Layer(m): 390.13 Age:
Sect: 2 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
========== ========= ======== ================ ============
35 50 97 1.76/ 56 6
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CHERT BLOCK
Screen Lith : CHERT
Leg : 28 Top/Bottom Interval(mm) : 630/ 700 Age:
Hole: 269 Depth Top of Layer(m) : 390.13 Age:
Core: 11 Depth Bottom of Layer(m): 390.20 Age:
Sect: 2 Thickness of Layer(m) : 0.07
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 1.82/ 53 7
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CHERTIFIED CLAYSTONE
Screen Lith : OTHER SILICEOUS RICH CLAYSTONE
Leg : 28 Top/Bottom Interval(mm) : 700/ 810 Age:
Hole: 269 Depth Top of Layer(m) : 390.20 Age:
Core: 11 Depth Bottom of Layer(m): 390.31 Age:
Sect: 2 Thickness of Layer(m) : 0.11
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
35 50 97 1.79/ 54 12
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CHERT BLOCK
Screen Lith : CHERT
Leg : 28 Top/Bottom Interval(mm) : 920/ 960 Age:
Hole: 269 Depth Top of Layer(m) : 390.42 Age:
Core: 11 Depth Bottom of Layer(m): 390.46 Age:
Sect: 2 Thickness of Layer(m) : 0.04
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 97 1.72/ 59 4
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYSTONE
Screen Lith : CLAYSTONE
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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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