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US National Science Foundation Division of Ocean Sciences
Index to Marine and Lacustrine Geological Samples (IMLGS)

Repository: International Ocean Discovery Program
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Ship: Glomar Challenger
Cruise: 16
Hole: 161A
Device: drill
Latitude: 10.672
Longitude: -139.955
Water Depth(m): 4939
Date: 19710311
IGSN: ODP002660
Core length (cm): 24500
Diameter (cm): 7
Storage: refrigerated
1 :    161A 1   6300 to 6450
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
2 :    161A 1   6450 to 6600
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
Comments: AVG.DEN=1.67
3 :    161A 1   6600 to 6750
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
4 :    161A 1   6750 to 6900
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.72
5 :    161A 1   6900 to 7050
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
Comments: AVG.DEN=1.65
6 :    161A 1   7050 to 7200
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
Comments: AVG.DEN=1.66
7 :    161A 2   12815 to 12945
Primary composition: calcareous, nannofossils
Components: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.75
8 :    161A 2   12950 to 13098
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
Comments: AVG.DEN=1.76
9 :    161A 2   13100 to 13250
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
Comments: AVG.DEN=1.76
10 :    161A 2   13250 to 13400
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
Comments: AVG.DEN=1.75
11 :    161A 2   13400 to 13550
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
Comments: AVG.DEN=1.80
12 :    161A 2   13550 to 13696
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
Comments: AVG.DEN=1.76
13 :    161A 3   13753 to 13788
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
14 :    161A 3   13850 to 14000
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
15 :    161A 3   14000 to 14150
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
16 :    161A 3   14150 to 14300
Primary composition: calcareous, nannofossils
Components: siliceous, diatoms
Geologic Age: Oligocene
17 :    161A 3   14302 to 14450
Primary composition: calcareous, nannofossils
Components: siliceous, diatoms
Geologic Age: Oligocene
18 :    161A 3   14450 to 14600
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
19 :    161A 4   14624 to 14774
Primary composition: calcareous, nannofossils
Components: siliceous, diatoms
Geologic Age: Oligocene
20 :    161A 4   14774 to 14924
Primary composition: calcareous, nannofossils
Components: siliceous, diatoms
Geologic Age: Oligocene
21 :    161A 4   14924 to 15074
Primary composition: calcareous, nannofossils
Components: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.71
22 :    161A 4   15074 to 15224
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
Comments: AVG.DEN=1.67
23 :    161A 4   15224 to 15374
Primary composition: siliceous, radiolaria
Components: siliceous, diatoms
calcareous, nannofossils
Geologic Age: Oligocene
24 :    161A 4   15374 to 15524
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.64
25 :    161A 5   15503 to 15650
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
26 :    161A 5   15650 to 15800
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
Comments: AVG.DEN=1.77
27 :    161A 5   15800 to 15950
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
Comments: AVG.DEN=1.77
28 :    161A 5   15950 to 16100
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
Comments: AVG.DEN=1.72
29 :    161A 5   16100 to 16250
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
Comments: AVG.DEN=1.73
30 :    161A 5   16250 to 16400
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
31 :    161A 6   16426 to 16576
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
32 :    161A 6   16576 to 16631
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.62
33 :    161A 6   16631 to 16726
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.81
34 :    161A 6   16726 to 16876
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.78
35 :    161A 6   16876 to 17026
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
36 :    161A 6   17026 to 17176
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.77
37 :    161A 6   17176 to 17326
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
38 :    161A 7   17324 to 17467
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
39 :    161A 7   17474 to 17624
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
40 :    161A 7   17624 to 17774
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
41 :    161A 7   17774 to 17924
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.74
42 :    161A 7   17924 to 18074
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.69
43 :    161A 7   18074 to 18219
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
Comments: AVG.DEN=1.79
44 :    161A 8   18251 to 18350
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
45 :    161A 8   18350 to 18500
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.66
46 :    161A 8   18500 to 18650
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
Comments: AVG.DEN=1.70
47 :    161A 9   19188 to 19220
Primary composition: calcareous, biogenic
Geologic Age: Oligocene
48 :    161A 9   19220 to 19250
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
49 :    161A 9   19250 to 19400
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
Comments: AVG.DEN=1.64
50 :    161A 9   19400 to 19550
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
51 :    161A 9   19550 to 19700
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
Comments: AVG.DEN=1.71
52 :    161A 9   19700 to 19850
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Oligocene
53 :    161A 10   20000 to 20037
Primary composition: siliceous, radiolaria
Components: iron or iron oxide
Geologic Age: Oligocene
54 :    161A 10   20150 to 20300
Primary composition: siliceous, radiolaria
Components: iron or iron oxide
Geologic Age: Eocene
55 :    161A 10   20308 to 20444
Primary composition: siliceous, radiolaria
Components: siliceous, diatoms
iron or iron oxide
Geologic Age: Eocene
56 :    161A 10   20450 to 20600
Primary composition: siliceous, radiolaria
Components: iron or iron oxide
Geologic Age: Eocene
Comments: AVG.DEN=1.29
57 :    161A 10   20600 to 20750
Primary composition: siliceous, radiolaria
Geologic Age: Eocene
Comments: AVG.DEN=1.32
58 :    161A 10   20772 to 20900
Primary composition: siliceous, radiolaria
Geologic Age: Eocene
Comments: AVG.DEN=1.36
59 :    161A 11   21010 to 21050
Primary composition: siliceous, radiolaria
Geologic Age: Eocene
60 :    161A 11   21050 to 21200
Primary composition: siliceous, radiolaria
Geologic Age: Eocene
Comments: AVG.DEN=1.30
61 :    161A 11   21200 to 21350
Primary composition: siliceous, radiolaria
Components: calcareous, nannofossils
Geologic Age: Eocene
Comments: AVG.DEN=1.40
62 :    161A 11   21350 to 21500
Primary composition: siliceous
Secondary texture: chert or porcelanite
Geologic Age: Eocene
Comments: AVG.DEN=1.40
63 :    161A 11   21500 to 21650
Primary composition: siliceous
Secondary texture: chert or porcelanite
Geologic Age: Eocene
Comments: AVG.DEN=1.38
64 :    161A 12   21805 to 21945
Primary composition: siliceous
Geologic Age: Eocene
Comments: AVG.DEN=1.33
65 :    161A 13   22700 to 22770
Primary composition: siliceous, radiolaria
Components: iron or iron oxide
Geologic Age: Eocene
66 :    161A 14   23500 to 23615
Primary composition: calcareous, nannofossils
Components: siliceous, radiolaria
Geologic Age: Eocene
67 :    161A 14   23615 to 23650
Primary composition: siliceous, radiolaria
Geologic Age: Eocene
68 :    161A 14   23723 to 23800
Primary composition: siliceous, radiolaria
Components: iron or iron oxide
Geologic Age: Eocene
69 :    161A 15   24400 to 24500
Comments: NO LITH DATA
_



When you refer to individual samples/data in the IMLGS, please cite each source repository whose data you use.

More Information and how to cite the IMLGS: doi:10.7289/V5H41PB8.


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