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Core Data from the Deep Sea Drilling Project
Leg : 28 Top/Bottom Interval(mm) : 870/1500 Age: PLIOCENE
Hole: 267 Depth Top of Layer(m) : 0.87 Age: PLIOCENE
Core: 1 Depth Bottom of Layer(m): 1.50 Age:
Sect: 1 Thickness of Layer(m) : 0.63
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: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOM BEARING CLAY
Screen Lith : CLAY MINERAL RICH DIATOM RICH CLAY
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: PLIOCENE
Hole: 267 Depth Top of Layer(m) : 1.50 Age: PLIOCENE
Core: 1 Depth Bottom of Layer(m): 3.00 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 0 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOM BEARING CLAY
Screen Lith : CLAY MINERAL RICH DIATOM RICH CLAY
Leg : 28 Top/Bottom Interval(mm) : 880/1500 Age: PLIOCENE
Hole: 267 Depth Top of Layer(m) : 3.88 Age: PLIOCENE
Core: 1 Depth Bottom of Layer(m): 4.50 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 0 0 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : DIATOM BEARING CLAY
Screen Lith : CLAY MINERAL RICH DIATOM RICH CLAY
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age:
Hole: 267 Depth Top of Layer(m) : 4.60 Age:
Core: 1 Depth Bottom of Layer(m): 4.60 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 15 85 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM RICH SILTY CLAY
Screen Lith : DIATOM RICH CLAY MINERAL RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: MIOCENE
Hole: 267 Depth Top of Layer(m) : 42.10 Age: MIOCENE
Core: 2 Depth Bottom of Layer(m): 42.10 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 15 85 /
Processing Hist: Classification was successful.
Shipboard Lith : DIATOM RICH CLAY
Screen Lith : DIATOM RICH CLAY MINERAL RICH CLAY
Leg : 28 Top/Bottom Interval(mm) : 1250/1500 Age: LOWER MIOCENE
Hole: 267 Depth Top of Layer(m) : 90.75 Age: LOWER MIOCENE
Core: 3 Depth Bottom of Layer(m): 91.00 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 2 98 /
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: 267 Depth Top of Layer(m) : 91.00 Age: LOWER MIOCENE
Core: 3 Depth Bottom of Layer(m): 92.50 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
========== ========= ======== ================ ============
1 2 98 1.42/ 76 158
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: 267 Depth Top of Layer(m) : 92.50 Age: LOWER MIOCENE
Core: 3 Depth Bottom of Layer(m): 94.00 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 2 98 1.49/ 73 148
Processing Hist: Classification was successful.
Shipboard Lith : CLAY
Screen Lith : CLAY MINERAL RICH CLAY
Leg : 28 Top/Bottom Interval(mm) : 00/1410 Age: LOWER MIOCENE
Hole: 267 Depth Top of Layer(m) : 94.00 Age: LOWER MIOCENE
Core: 3 Depth Bottom of Layer(m): 95.41 Age:
Sect: 4 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 2 98 1.40/ 78 149
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: 267 Depth Top of Layer(m) : 95.50 Age: LOWER MIOCENE
Core: 3 Depth Bottom of Layer(m): 97.00 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
========== ========= ======== ================ ============
9 2 90 1.50/ 72 153
Processing Hist: Classification was successful.
Shipboard Lith : CLAY
Screen Lith : CLAY MINERAL RICH CLAY
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: LOWER MIOCENE
Hole: 267 Depth Top of Layer(m) : 97.10 Age: LOWER MIOCENE
Core: 3 Depth Bottom of Layer(m): 97.10 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 2 98 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAY
Screen Lith : CLAY MINERAL RICH MUD
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: TERTIARY
Hole: 267 Depth Top of Layer(m) : 128.00 Age: LOWER MIOCENE
Core: 4 Depth Bottom of Layer(m): 129.50 Age: UPPER OLIGOCENE
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
========== ========= ======== ================ ============
49 4 48 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAY BEARING NANNO OOZE
Screen Lith : MARLY NANNOFOSSIL OOZE
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: TERTIARY
Hole: 267 Depth Top of Layer(m) : 129.50 Age: LOWER MIOCENE
Core: 4 Depth Bottom of Layer(m): 131.00 Age: UPPER OLIGOCENE
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
========== ========= ======== ================ ============
95 4 1 /
Processing Hist: Classification was successful.
Shipboard Lith : NANNO OOZE
Screen Lith : NANNOFOSSIL OOZE
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: TERTIARY
Hole: 267 Depth Top of Layer(m) : 131.00 Age: LOWER MIOCENE
Core: 4 Depth Bottom of Layer(m): 132.50 Age: UPPER OLIGOCENE
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
========== ========= ======== ================ ============
93 4 3 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAY BEARING NANNO OOZE
Screen Lith : NANNOFOSSIL OOZE
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: TERTIARY
Hole: 267 Depth Top of Layer(m) : 132.50 Age: LOWER MIOCENE
Core: 4 Depth Bottom of Layer(m): 134.00 Age: UPPER OLIGOCENE
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
========== ========= ======== ================ ============
43 7 50 1.50/ 72 158
Processing Hist: Classification was successful.
Shipboard Lith : NANNO OOZE
Screen Lith : MARLY NANNOFOSSIL OOZE
Leg : 28 Top/Bottom Interval(mm) : 00/1450 Age: TERTIARY
Hole: 267 Depth Top of Layer(m) : 134.00 Age: LOWER MIOCENE
Core: 4 Depth Bottom of Layer(m): 135.45 Age: UPPER OLIGOCENE
Sect: 5 Thickness of Layer(m) : 1.45
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
96 4 0 1.55/ 69 149
Processing Hist: Classification was successful.
Shipboard Lith : NANNO OOZE
Screen Lith : NANNOFOSSIL OOZE
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: TERTIARY
Hole: 267 Depth Top of Layer(m) : 135.50 Age: LOWER MIOCENE
Core: 4 Depth Bottom of Layer(m): 137.00 Age: UPPER OLIGOCENE
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
========== ========= ======== ================ ============
95 2 3 1.54/ 69 156
Processing Hist: Classification was successful.
Shipboard Lith : NANNO OOZE
Screen Lith : NANNOFOSSIL OOZE
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age:
Hole: 267 Depth Top of Layer(m) : 137.10 Age:
Core: 4 Depth Bottom of Layer(m): 137.10 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
========== ========= ======== ================ ============
70 3 27 /
Processing Hist: Classification was successful.
Shipboard Lith : CLAY RICH NANNO OOZE
Screen Lith : CLAY MINERAL RICH NANNOFOSSIL OOZE
Leg : 28 Top/Bottom Interval(mm) : 520/ 990 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 166.02 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 166.49 Age:
Sect: 1 Thickness of Layer(m) : 0.47
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 : NANNO OOZE AND CHALK
Screen Lith : CALCAREOUS OOZE.
Leg : 28 Top/Bottom Interval(mm) : 990/1030 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 166.49 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 166.53 Age:
Sect: 1 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 0 /
Processing Hist:
Shipboard Lith : CHALK
Screen Lith : CALCAREOUS OOZE.
Leg : 28 Top/Bottom Interval(mm) : 1030/1050 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 166.53 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 166.55 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 0 /
Processing Hist:
Shipboard Lith : DRILLING BRECCIA
Screen Lith : CALCAREOUS OOZE.
Leg : 28 Top/Bottom Interval(mm) : 1050/1110 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 166.55 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 166.61 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
========== ========= ======== ================ ============
94 4 2 /
Processing Hist: Classification was successful.
Shipboard Lith : CHALK
Screen Lith : NANNOFOSSIL CHALK
Leg : 28 Top/Bottom Interval(mm) : 1110/1130 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 166.61 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 166.63 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 0 /
Processing Hist:
Shipboard Lith : DRILLING BRECCIA
Screen Lith : NANNOFOSSIL CHALK
Leg : 28 Top/Bottom Interval(mm) : 1130/1150 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 166.63 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 166.65 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 0 /
Processing Hist:
Shipboard Lith : CHALK
Screen Lith : NANNOFOSSIL CHALK
Leg : 28 Top/Bottom Interval(mm) : 1150/1440 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 166.65 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 166.94 Age:
Sect: 1 Thickness of Layer(m) : 0.29
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
96 4 0 /
Processing Hist: Classification was successful.
Shipboard Lith : NANNO CHALK
Screen Lith : NANNOFOSSIL CHALK
Leg : 28 Top/Bottom Interval(mm) : 00/1450 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 167.00 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 168.45 Age:
Sect: 2 Thickness of Layer(m) : 1.45
Average Percent G.R.A.P.E. Avg # G.R.A.P.E.
Calcareous Siliceous Detrital Density/Porosity meas Avg'd
========== ========= ======== ================ ============
70 4 27 1.56/ 68 147
Processing Hist: Classification was successful.
Shipboard Lith : NANNO OOZE AND CHALK
Screen Lith : NANNOFOSSIL CHALK
Leg : 28 Top/Bottom Interval(mm) : 60/1500 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 168.56 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 170.00 Age:
Sect: 3 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
========== ========= ======== ================ ============
95 4 1 1.63/ 64 153
Processing Hist: Classification was successful.
Shipboard Lith : NANNO OOZE AND CHALK
Screen Lith : NANNOFOSSIL CHALK
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: MIDDLE OLIGOCENE
Hole: 267 Depth Top of Layer(m) : 170.10 Age: MIDDLE OLIGOCENE
Core: 5 Depth Bottom of Layer(m): 170.10 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
========== ========= ======== ================ ============
94 2 4 /
Processing Hist: Classification was successful.
Shipboard Lith : NANNO OOZE
Screen Lith : NANNOFOSSIL CHALK
Leg : 28 Top/Bottom Interval(mm) : 500/ 600 Age: LOWER TERTIARY
Hole: 267 Depth Top of Layer(m) : 204.00 Age: LOWER OLIGOCENE
Core: 6 Depth Bottom of Layer(m): 204.10 Age: UPPER EOCENE
Sect: 1 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
========== ========= ======== ================ ============
95 0 5 /
Processing Hist: Classification was successful.
Shipboard Lith : NANNO CHALK
Screen Lith : NANNOFOSSIL CHALK
Leg : 28 Top/Bottom Interval(mm) : 600/ 700 Age: LOWER TERTIARY
Hole: 267 Depth Top of Layer(m) : 204.10 Age: LOWER OLIGOCENE
Core: 6 Depth Bottom of Layer(m): 204.20 Age: UPPER EOCENE
Sect: 1 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
========== ========= ======== ================ ============
40 25 5 /
Processing Hist: Data incomplete; interpretation allowed manual encoding.
Shipboard Lith : LIMESTONE
Screen Lith : LIMESTONE
Leg : 28 Top/Bottom Interval(mm) : 700/1500 Age: LOWER TERTIARY
Hole: 267 Depth Top of Layer(m) : 204.20 Age: LOWER OLIGOCENE
Core: 6 Depth Bottom of Layer(m): 205.00 Age: UPPER EOCENE
Sect: 1 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 0 0 /
Processing Hist: Classification failed; no smear slide data exists.
Shipboard Lith : BASALT
Screen Lith : BASALT
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age: LOWER TERTIARY
Hole: 267 Depth Top of Layer(m) : 205.10 Age: LOWER OLIGOCENE
Core: 6 Depth Bottom of Layer(m): 205.10 Age: UPPER 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 0 /
Processing Hist: Classification failed; no smear slide data exists.
Shipboard Lith : BASALT
Screen Lith : BASALT
Leg : 28 Top/Bottom Interval(mm) : 00/1500 Age: LOWER TERTIARY
Hole: 267 Depth Top of Layer(m) : 210.00 Age: LOWER OLIGOCENE
Core: 7 Depth Bottom of Layer(m): 211.50 Age: UPPER EOCENE
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: Classification failed; no smear slide data exists.
Shipboard Lith : BASALT
Screen Lith : BASALT
Leg : 28 Top/Bottom Interval(mm) : 0/ 0 Age:
Hole: 267 Depth Top of Layer(m) : 211.60 Age:
Core: 7 Depth Bottom of Layer(m): 211.60 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 0 /
Processing Hist: Classification failed; no smear slide data exists.
Shipboard Lith : BASALT
Screen Lith : BASALT
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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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