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Core Data from the Deep Sea Drilling Project
Leg : 58 Top/Bottom Interval(mm) : 60/1500 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 372.06 Age: MIDDLE EOCENE
Core: 1 Depth Bottom of Layer(m): 373.50 Age: LOWER EOCENE
Sect: 1 Thickness of Layer(m) : 1.44
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 64 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : MUDSTONE
Screen Lith : MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/1500 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 373.50 Age: MIDDLE EOCENE
Core: 1 Depth Bottom of Layer(m): 375.00 Age: LOWER EOCENE
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 64 1.97/ 44 148
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : MUDSTONE
Screen Lith : MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 680 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 375.00 Age: MIDDLE EOCENE
Core: 1 Depth Bottom of Layer(m): 375.68 Age: LOWER EOCENE
Sect: 3 Thickness of Layer(m) : 0.68
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: Classification failed; no smear slide data exists.
Shipboard Lith : SANDSTONE (VISUALLY)
Screen Lith : SANDSTONE (VISUALLY)
Leg : 58 Top/Bottom Interval(mm) : 00/ 50 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 375.78 Age: MIDDLE EOCENE
Core: 1 Depth Bottom of Layer(m): 375.83 Age: LOWER EOCENE
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
========== ========= ======== ================ ============
67 2 32 /
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : CLAY MINERAL RICH CARBONATE LIMESTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 550 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 381.50 Age: MIDDLE EOCENE
Core: 2 Depth Bottom of Layer(m): 382.05 Age: LOWER EOCENE
Sect: 1 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 1 99 /
Processing Hist: Classification failed; no smear slide data exists.
Shipboard Lith : DRILLING BRECCIA
Screen Lith : DRILLING BRECCIA
Leg : 58 Top/Bottom Interval(mm) : 550/ 800 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 382.05 Age: MIDDLE EOCENE
Core: 2 Depth Bottom of Layer(m): 382.30 Age: LOWER EOCENE
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
========== ========= ======== ================ ============
3 5 92 /
Processing Hist: Classification was successful.
Shipboard Lith : DRILLING BRECCIA
Screen Lith : CLAY MINERAL RICH GLASS RICH SANDY MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 1180/1500 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 384.18 Age: MIDDLE EOCENE
Core: 2 Depth Bottom of Layer(m): 384.50 Age: LOWER EOCENE
Sect: 2 Thickness of Layer(m) : 0.32
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:
Shipboard Lith : BASALT FRAGMENTS
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 0/ 0 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 385.05 Age: MIDDLE EOCENE
Core: 2 Depth Bottom of Layer(m): 385.05 Age: LOWER EOCENE
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 0 100 /
Processing Hist:
Shipboard Lith : ZEOLITIC CLAYSTONE (?)
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 00/1170 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 391.00 Age: MIDDLE EOCENE
Core: 3 Depth Bottom of Layer(m): 392.17 Age: LOWER EOCENE
Sect: 1 Thickness of Layer(m) : 1.17
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
1 4 95 2.34/ 21 66
Processing Hist:
Shipboard Lith : MUDSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 510/1500 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 393.01 Age: MIDDLE EOCENE
Core: 3 Depth Bottom of Layer(m): 394.00 Age: LOWER EOCENE
Sect: 2 Thickness of Layer(m) : 0.99
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
4 5 92 2.25/ 27 90
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : CLAY MINERAL RICH CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 300 Age: EOCENE
Hole: 446A Depth Top of Layer(m) : 394.00 Age: MIDDLE EOCENE
Core: 3 Depth Bottom of Layer(m): 394.30 Age: LOWER EOCENE
Sect: 3 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
========== ========= ======== ================ ============
25 0 75 1.82/ 52 6
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE
Screen Lith : CARBONATE RICH CLAY MINERAL RICH CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 670/ 780 Age:
Hole: 446A Depth Top of Layer(m) : 412.17 Age:
Core: 6 Depth Bottom of Layer(m): 412.28 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
========== ========= ======== ================ ============
5 0 95 1.91/ 47 11
Processing Hist: Classification was successful.
Shipboard Lith : CALCAREOUS CLAYSTN
Screen Lith : CLAY MINERAL RICH CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/1500 Age:
Hole: 446A Depth Top of Layer(m) : 413.00 Age:
Core: 6 Depth Bottom of Layer(m): 414.50 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 0 100 1.57/ 67 138
Processing Hist:
Shipboard Lith : BASALT
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 00/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 438.50 Age: LOWER EOCENE
Core: 9 Depth Bottom of Layer(m): 440.00 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
========== ========= ======== ================ ============
25 0 75 1.55/ 69 103
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : CARBONATE RICH CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 448.00 Age: LOWER EOCENE
Core: 10 Depth Bottom of Layer(m): 449.50 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 2 98 2.04/ 39 149
Processing Hist:
Shipboard Lith : CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 00/ 940 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 449.50 Age: LOWER EOCENE
Core: 10 Depth Bottom of Layer(m): 450.44 Age:
Sect: 2 Thickness of Layer(m) : 0.94
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
9 0 91 /
Processing Hist:
Shipboard Lith : CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 00/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 451.00 Age: LOWER EOCENE
Core: 10 Depth Bottom of Layer(m): 452.50 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 7 93 1.98/ 43 150
Processing Hist:
Shipboard Lith : VOLCANIC ASH
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 00/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 452.50 Age: LOWER EOCENE
Core: 10 Depth Bottom of Layer(m): 454.00 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
========== ========= ======== ================ ============
2 1 97 1.92/ 47 144
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE CONGLOMERATE
Screen Lith : GLASS RICH CLASTIC SEDIMENTSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 780 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 454.00 Age: LOWER EOCENE
Core: 10 Depth Bottom of Layer(m): 454.78 Age:
Sect: 5 Thickness of Layer(m) : 0.78
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
2 2 96 /
Processing Hist:
Shipboard Lith : MUDSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 1370/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 469.87 Age: LOWER EOCENE
Core: 12 Depth Bottom of Layer(m): 470.00 Age:
Sect: 2 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
========== ========= ======== ================ ============
6 0 94 1.20/ 89 13
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : FELDSPAR RICH CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 470.00 Age: LOWER EOCENE
Core: 12 Depth Bottom of Layer(m): 471.50 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
========== ========= ======== ================ ============
1 0 99 2.00/ 42 144
Processing Hist:
Shipboard Lith : CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 471.50 Age: LOWER EOCENE
Core: 12 Depth Bottom of Layer(m): 471.70 Age:
Sect: 4 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 : "CLAYSTONE"
Screen Lith : CLAY MINERAL RICH GLASS RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 100/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 479.60 Age: LOWER EOCENE
Core: 13 Depth Bottom of Layer(m): 481.00 Age:
Sect: 3 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
========== ========= ======== ================ ============
2 0 98 /
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : CLAY MINERAL RICH GLASS RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 220 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 481.33 Age: LOWER EOCENE
Core: 13 Depth Bottom of Layer(m): 481.55 Age:
Sect: CC Thickness of Layer(m) : 0.22
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
18 0 83 /
Processing Hist: Classification was successful.
Shipboard Lith : SILTSTONE/SANDSTONE
Screen Lith : CLAY MINERAL RICH SANDY MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 100/ 120 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 486.10 Age: LOWER EOCENE
Core: 14 Depth Bottom of Layer(m): 486.12 Age:
Sect: 1 Thickness of Layer(m) : 0.02
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
2 2 96 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAY
Screen Lith : CLAY MINERAL RICH MUD
Leg : 58 Top/Bottom Interval(mm) : 140/ 160 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 486.14 Age: LOWER EOCENE
Core: 14 Depth Bottom of Layer(m): 486.16 Age:
Sect: 1 Thickness of Layer(m) : 0.02
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
5 0 95 /
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : GLAUCONITE RICH FELDSPAR RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 550/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 508.55 Age: LOWER EOCENE
Core: 16 Depth Bottom of Layer(m): 509.50 Age:
Sect: 3 Thickness of Layer(m) : 0.95
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
1 4 96 2.07/ 38 101
Processing Hist: Classification was successful.
Shipboard Lith : ASH
Screen Lith : FELDSPAR RICH GLASS RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 509.50 Age: LOWER EOCENE
Core: 16 Depth Bottom of Layer(m): 511.00 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 0 100 /
Processing Hist: Classification was successful.
Shipboard Lith : ASH
Screen Lith : GLASS RICH TUFF
Leg : 58 Top/Bottom Interval(mm) : 00/ 440 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 511.00 Age: LOWER EOCENE
Core: 16 Depth Bottom of Layer(m): 511.44 Age:
Sect: 5 Thickness of Layer(m) : 0.44
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
1 1 98 /
Processing Hist: Classification was successful.
Shipboard Lith : ASH
Screen Lith : FELDSPAR RICH GLASS RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 170 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 511.54 Age: LOWER EOCENE
Core: 16 Depth Bottom of Layer(m): 511.71 Age:
Sect: CC 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
========== ========= ======== ================ ============
10 2 88 /
Processing Hist:
Shipboard Lith : MUDSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 00/1000 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 514.50 Age: LOWER EOCENE
Core: 17 Depth Bottom of Layer(m): 515.50 Age:
Sect: 1 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 3 97 1.99/ 42 75
Processing Hist: Classification was successful.
Shipboard Lith : ASH
Screen Lith : CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 1000/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 515.50 Age: LOWER EOCENE
Core: 17 Depth Bottom of Layer(m): 516.00 Age:
Sect: 1 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 4 96 2.17/ 32 53
Processing Hist:
Shipboard Lith : CALCAREOUS MUDSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 516.00 Age: LOWER EOCENE
Core: 17 Depth Bottom of Layer(m): 516.20 Age:
Sect: 2 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 2.00/ 42 8
Processing Hist:
Shipboard Lith : CALCAREOUS MUDSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 200/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 516.20 Age: LOWER EOCENE
Core: 17 Depth Bottom of Layer(m): 517.50 Age:
Sect: 2 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
========== ========= ======== ================ ============
15 1 84 2.27/ 26 138
Processing Hist: Classification was successful.
Shipboard Lith : CALCAREOUS MUDSTONE
Screen Lith : CARBONATE RICH CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 150 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 517.50 Age: LOWER EOCENE
Core: 17 Depth Bottom of Layer(m): 517.65 Age:
Sect: 3 Thickness of Layer(m) : 0.15
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 MUDSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 150/ 350 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 517.65 Age: LOWER EOCENE
Core: 17 Depth Bottom of Layer(m): 517.85 Age:
Sect: 3 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 : ALTERED ASH
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 350/ 690 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 517.85 Age: LOWER EOCENE
Core: 17 Depth Bottom of Layer(m): 518.19 Age:
Sect: 3 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
========== ========= ======== ================ ============
10 0 90 /
Processing Hist: Classification was successful.
Shipboard Lith : CALCAREOUS ASHY MUDSTONE
Screen Lith : CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 200 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 518.29 Age: LOWER EOCENE
Core: 17 Depth Bottom of Layer(m): 518.49 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 : MUDSTONE
Screen Lith : CLAY MINERAL RICH PELAGIC CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 420 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 524.00 Age: LOWER EOCENE
Core: 18 Depth Bottom of Layer(m): 524.42 Age:
Sect: 1 Thickness of Layer(m) : 0.42
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
15 2 83 1.90/ 48 30
Processing Hist: Classification was successful.
Shipboard Lith : VITRIC CALC MUDSTONE
Screen Lith : CARBONATE RICH CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 420/ 960 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 524.42 Age: LOWER EOCENE
Core: 18 Depth Bottom of Layer(m): 524.96 Age:
Sect: 1 Thickness of Layer(m) : 0.54
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
60 0 40 1.82/ 52 58
Processing Hist: Classification was successful.
Shipboard Lith : CALC MUDSTONE
Screen Lith : CARBONATE LIMESTONE
Leg : 58 Top/Bottom Interval(mm) : 960/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 524.96 Age: LOWER EOCENE
Core: 18 Depth Bottom of Layer(m): 525.50 Age:
Sect: 1 Thickness of Layer(m) : 0.54
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
90 0 10 1.87/ 50 57
Processing Hist: Classification was successful.
Shipboard Lith : VITRIC CALC MUDSTONE
Screen Lith : INDURATED CARBONATE CHALK
Leg : 58 Top/Bottom Interval(mm) : 00/ 130 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 525.50 Age: LOWER EOCENE
Core: 18 Depth Bottom of Layer(m): 525.63 Age:
Sect: 2 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 10 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CALCAREOUS SANDY MUDSTONE
Screen Lith : CARBONATE RICH SANDY MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 130/ 480 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 525.63 Age: LOWER EOCENE
Core: 18 Depth Bottom of Layer(m): 525.98 Age:
Sect: 2 Thickness of Layer(m) : 0.35
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
5 0 95 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE
Screen Lith : CLAY MINERAL RICH CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 480/ 540 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 525.98 Age: LOWER EOCENE
Core: 18 Depth Bottom of Layer(m): 526.04 Age:
Sect: 2 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
========== ========= ======== ================ ============
12 0 88 /
Processing Hist: Classification was successful.
Shipboard Lith : GLAUC
Screen Lith : CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 120/ 210 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 536.62 Age: LOWER EOCENE
Core: 19 Depth Bottom of Layer(m): 536.71 Age:
Sect: 3 Thickness of Layer(m) : 0.09
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
2 3 96 /
Processing Hist:
Shipboard Lith : MUDSTONE
Screen Lith : DETRITAL SEDIMENT.
Leg : 58 Top/Bottom Interval(mm) : 400/ 450 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 562.40 Age: LOWER EOCENE
Core: 22 Depth Bottom of Layer(m): 562.45 Age:
Sect: 1 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 1 99 1.45/ 75 6
Processing Hist:
Shipboard Lith : CLAYSTONE
Screen Lith : DETRITAL SEDIMENT.
Leg : 58 Top/Bottom Interval(mm) : 450/ 500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 562.45 Age: LOWER EOCENE
Core: 22 Depth Bottom of Layer(m): 562.50 Age:
Sect: 1 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 0 2.66/ 3 5
Processing Hist:
Shipboard Lith : CLAYSTONE
Screen Lith : DETRITAL SEDIMENT.
Leg : 58 Top/Bottom Interval(mm) : 500/ 800 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 562.50 Age: LOWER EOCENE
Core: 22 Depth Bottom of Layer(m): 562.80 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 5 96 1.93/ 46 32
Processing Hist:
Shipboard Lith : VOLCANIC ASH
Screen Lith : DETRITAL SEDIMENT.
Leg : 58 Top/Bottom Interval(mm) : 800/1050 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 562.80 Age: LOWER EOCENE
Core: 22 Depth Bottom of Layer(m): 563.05 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
========== ========= ======== ================ ============
2 0 98 2.22/ 28 27
Processing Hist:
Shipboard Lith : ****** NO LITH GIVEN ***
Screen Lith : DETRITAL SEDIMENT.
Leg : 58 Top/Bottom Interval(mm) : 1050/1220 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 563.05 Age: LOWER EOCENE
Core: 22 Depth Bottom of Layer(m): 563.22 Age:
Sect: 1 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 0 100 2.66/ 2 18
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE
Screen Lith : FELDSPAR RICH CLAY MINERAL RICH PELAGIC CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 1220/1240 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 563.22 Age: LOWER EOCENE
Core: 22 Depth Bottom of Layer(m): 563.24 Age:
Sect: 1 Thickness of Layer(m) : 0.02
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
3 0 97 2.66/ 2 2
Processing Hist: Classification was successful.
Shipboard Lith : CHERT
Screen Lith : FELDSPAR RICH CLAY MINERAL RICH CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 1240/1300 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 563.24 Age: LOWER EOCENE
Core: 22 Depth Bottom of Layer(m): 563.30 Age:
Sect: 1 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 1 99 2.66/ 2 6
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : CLAY MINERAL RICH FELDSPAR RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/1130 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 571.50 Age: LOWER EOCENE
Core: 23 Depth Bottom of Layer(m): 572.63 Age:
Sect: 1 Thickness of Layer(m) : 1.13
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
1 4 95 1.83/ 52 40
Processing Hist:
Shipboard Lith : MUDSTONE TO CLAYSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 250/ 330 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 581.25 Age: LOWER EOCENE
Core: 24 Depth Bottom of Layer(m): 581.33 Age:
Sect: 1 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
========== ========= ======== ================ ============
2 0 98 2.25/ 27 9
Processing Hist: Classification was successful.
Shipboard Lith : GLAUCONITIC MUDSTONE
Screen Lith : GLAUCONITE RICH CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 660/ 860 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 581.66 Age: LOWER EOCENE
Core: 24 Depth Bottom of Layer(m): 581.86 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
========== ========= ======== ================ ============
2 3 95 2.39/ 19 21
Processing Hist:
Shipboard Lith : MUDSTONE
Screen Lith : CLASTIC STONE.
Leg : 58 Top/Bottom Interval(mm) : 860/ 940 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 581.86 Age: LOWER EOCENE
Core: 24 Depth Bottom of Layer(m): 581.94 Age:
Sect: 1 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
========== ========= ======== ================ ============
2 0 98 2.39/ 18 9
Processing Hist: Classification was successful.
Shipboard Lith : GLAUCONITIC MUDSTONE
Screen Lith : CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 940/1450 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 581.94 Age: LOWER EOCENE
Core: 24 Depth Bottom of Layer(m): 582.45 Age:
Sect: 1 Thickness of Layer(m) : 0.51
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
2 0 98 1.86/ 50 54
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : MICRONODULE RICH CLAY MINERAL RICH PELAGIC CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 750 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 582.50 Age: LOWER EOCENE
Core: 24 Depth Bottom of Layer(m): 583.25 Age:
Sect: 2 Thickness of Layer(m) : 0.75
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
0 0 100 1.53/ 70 65
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : MICRONODULE RICH CLAY MINERAL RICH PELAGIC CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 900/1000 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 594.40 Age: LOWER EOCENE
Core: 25 Depth Bottom of Layer(m): 594.50 Age:
Sect: 3 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
========== ========= ======== ================ ============
6 0 95 1.57/ 68 10
Processing Hist:
Shipboard Lith : MUDSTONE
Screen Lith : DETRITAL SEDIMENT.
Leg : 58 Top/Bottom Interval(mm) : 1000/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 594.50 Age: LOWER EOCENE
Core: 25 Depth Bottom of Layer(m): 595.00 Age:
Sect: 3 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 3 98 1.57/ 67 53
Processing Hist:
Shipboard Lith : ASHY MUDSTONE
Screen Lith : DETRITAL SEDIMENT.
Leg : 58 Top/Bottom Interval(mm) : 00/ 830 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 595.00 Age: LOWER EOCENE
Core: 25 Depth Bottom of Layer(m): 595.83 Age:
Sect: 4 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
========== ========= ======== ================ ============
24 7 69 /
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : GLASS RICH CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 20 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 600.00 Age: LOWER EOCENE
Core: 26 Depth Bottom of Layer(m): 600.02 Age:
Sect: 1 Thickness of Layer(m) : 0.02
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(?) MUDSTONE
Screen Lith : GLAUCONITE RICH CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 20/ 40 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 600.02 Age: LOWER EOCENE
Core: 26 Depth Bottom of Layer(m): 600.04 Age:
Sect: 1 Thickness of Layer(m) : 0.02
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
5 0 95 /
Processing Hist: Classification was successful.
Shipboard Lith : FELDSPAR-RICH MUDSTONE
Screen Lith : FELDSPAR RICH CLAY MINERAL RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 560/1010 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 603.56 Age: LOWER EOCENE
Core: 26 Depth Bottom of Layer(m): 604.01 Age:
Sect: 3 Thickness of Layer(m) : 0.45
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
9 5 86 1.86/ 50 48
Processing Hist: Classification was successful.
Shipboard Lith : MUDSTONE
Screen Lith : CLAY MINERAL RICH GLASS RICH MUD
Leg : 58 Top/Bottom Interval(mm) : 1010/1060 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 604.01 Age: LOWER EOCENE
Core: 26 Depth Bottom of Layer(m): 604.06 Age:
Sect: 3 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
========== ========= ======== ================ ============
2 0 98 2.50/ 12 6
Processing Hist: Classification was successful.
Shipboard Lith : CLAYSTONE (BAKED)
Screen Lith : CLAY MINERAL RICH CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 1460/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 612.46 Age: LOWER EOCENE
Core: 27 Depth Bottom of Layer(m): 612.50 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 98 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : CLAYSTONE
Screen Lith : CLAYSTONE
Leg : 58 Top/Bottom Interval(mm) : 90/1500 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 619.09 Age: LOWER EOCENE
Core: 28 Depth Bottom of Layer(m): 620.50 Age:
Sect: 1 Thickness of Layer(m) : 1.41
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 : GLAUCONITIC MUDSTONE
Screen Lith : GLAUCONITE RICH MUDSTONE
Leg : 58 Top/Bottom Interval(mm) : 00/ 250 Age: LOWER EOCENE
Hole: 446A Depth Top of Layer(m) : 620.86 Age: LOWER EOCENE
Core: 28 Depth Bottom of Layer(m): 621.11 Age:
Sect: CC 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 0 98 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : GLAUCONITIC MUDSTONE
Screen Lith : GLAUCONITE RICH 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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