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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: 29
Hole: 280A
Device: drill
Latitude: -48.957
Longitude: 147.235
Water Depth(m): 4176
Date: 19730327
IGSN: ODP005964
Core length (cm): 52500
Diameter (cm): 7
Storage: refrigerated
1 :    280A 1   3868 to 3880
Primary composition: calcareous, nannofossils
Geologic Age: Oligocene
2 :    280A 1   3880 to 3950
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
3 :    280A 1   3950 to 3962
Primary composition: siliceous
Geologic Age: Oligocene
Comments: AVG.DEN=1.42
4 :    280A 1   3962 to 4100
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.28
5 :    280A 1   4100 to 4250
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.31
6 :    280A 1   4250 to 4400
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
7 :    280A 2   5390 to 5409
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
8 :    280A 2   5409 to 5500
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
9 :    280A 2   5500 to 5650
Primary composition: siliceous
Geologic Age: Oligocene
10 :    280A 2   5650 to 5800
Primary composition: siliceous
Geologic Age: Oligocene
11 :    280A 2   5800 to 5950
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.33
12 :    280A 2   5950 to 6100
Primary composition: terrigenous
Geologic Age: Oligocene
13 :    280A 2   6100 to 6250
Primary composition: terrigenous
Geologic Age: Oligocene
Comments: AVG.DEN=1.38
14 :    280A 3   7250 to 7400
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
15 :    280A 3   7400 to 7550
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
16 :    280A 3   7550 to 7700
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
17 :    280A 3   7700 to 7850
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
18 :    280A 3   7850 to 8000
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.39
19 :    280A 4   8320 to 8350
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
20 :    280A 4   8350 to 8500
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
21 :    280A 4   8500 to 8650
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.39
22 :    280A 4   8650 to 8800
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.33
23 :    280A 4   8800 to 8950
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
24 :    280A 5   9183 to 9300
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
25 :    280A 5   9300 to 9450
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
26 :    280A 6   10144 to 10250
Primary composition: siliceous, diatoms
Geologic Age: Tertiary
27 :    280A 6   10250 to 10400
Primary composition: siliceous, diatoms
Geologic Age: Tertiary
28 :    280A 6   10400 to 10550
Primary composition: terrigenous
Components: siliceous, diatoms
Geologic Age: Tertiary
29 :    280A 7   12062 to 12150
Primary composition: terrigenous
Components: siliceous, diatoms
Geologic Age: Tertiary
30 :    280A 7   12150 to 12300
Primary composition: terrigenous
Components: siliceous, diatoms
Geologic Age: Tertiary
31 :    280A 7   12300 to 12450
Primary composition: terrigenous
Components: siliceous, diatoms
Geologic Age: Tertiary
32 :    280A 7   12450 to 12600
Primary composition: terrigenous
Components: siliceous, diatoms
Geologic Age: Tertiary
33 :    280A 8   13900 to 14050
Primary composition: terrigenous
Components: siliceous, diatoms
Geologic Age: Tertiary
34 :    280A 8   14050 to 14200
Primary composition: terrigenous
Geologic Age: Tertiary
35 :    280A 9   16783 to 16815
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Tertiary
36 :    280A 9   16815 to 16900
Primary composition: terrigenous
Geologic Age: Tertiary
37 :    280A 10   19672 to 19718
Primary composition: siliceous
Secondary texture: chert or porcelanite
Geologic Age: Eocene
38 :    280A 10   19718 to 19750
Primary composition: terrigenous
Geologic Age: Eocene
39 :    280A 10   19750 to 19766
Primary composition: terrigenous
Geologic Age: Eocene
40 :    280A 10   19766 to 19806
Primary composition: terrigenous
Geologic Age: Eocene
41 :    280A 10   20166 to 20200
Primary composition: terrigenous
Geologic Age: Eocene
42 :    280A 10   20200 to 20350
Primary composition: terrigenous
Geologic Age: Eocene
Comments: AVG.DEN=1.66
43 :    280A 10   20350 to 20500
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
Comments: AVG.DEN=1.59
44 :    280A 11   21555 to 21650
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
45 :    280A 11   21650 to 21750
Primary composition: terrigenous
Geologic Age: Eocene
Comments: AVG.DEN=1.64
46 :    280A 11   21750 to 21760
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
Comments: AVG.DEN=1.49
47 :    280A 11   21760 to 21800
Primary composition: terrigenous
Geologic Age: Eocene
Comments: AVG.DEN=1.61
48 :    280A 11   21800 to 21895
Primary composition: terrigenous
Geologic Age: Eocene
Comments: AVG.DEN=1.64
49 :    280A 11   21895 to 21910
Primary composition: terrigenous
Components: glauconite
Geologic Age: Eocene
Comments: AVG.DEN=1.64
50 :    280A 11   21910 to 21950
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
Comments: AVG.DEN=1.69
51 :    280A 12   23400 to 23481
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
52 :    280A 12   23486 to 23501
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
glauconite
Geologic Age: Eocene
53 :    280A 12   23501 to 23515
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
54 :    280A 13   26295 to 26400
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
55 :    280A 13   26400 to 26550
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
Comments: AVG.DEN=1.56
56 :    280A 13   26550 to 26700
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
57 :    280A 14   29155 to 29190
Primary composition: terrigenous
Geologic Age: Eocene
58 :    280A 14   29190 to 29215
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
59 :    280A 14   29215 to 29250
Primary composition: terrigenous
Components: glauconite
Geologic Age: Eocene
60 :    280A 14   29250 to 29280
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
Comments: AVG.DEN=1.65
61 :    280A 14   29280 to 29310
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
Comments: AVG.DEN=1.61
62 :    280A 14   29310 to 29340
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
Comments: AVG.DEN=1.61
63 :    280A 14   29340 to 29370
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
Comments: AVG.DEN=1.63
64 :    280A 14   29370 to 29392
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
Comments: AVG.DEN=1.61
65 :    280A 14   29392 to 29400
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
Comments: AVG.DEN=1.73
66 :    280A 15   32026 to 32100
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
67 :    280A 15   32100 to 32250
Primary composition: terrigenous
Components: glauconite
Geologic Age: Eocene
68 :    280A 15   32250 to 32400
Primary composition: terrigenous
Components: glauconite
Geologic Age: Eocene
69 :    280A 16   34890 to 34950
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
70 :    280A 17   37700 to 37850
Primary texture: terrigenous clastic sedimentary rock
Components: glauconite
Geologic Age: Eocene
71 :    280A 17   37850 to 38000
Components: clay minerals
Geologic Age: Eocene
Comments: AVG.DEN=1.67
72 :    280A 17   38000 to 38150
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
73 :    280A 17   38150 to 38300
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
Geologic Age: Eocene
Comments: AVG.DEN=1.79
74 :    280A 17   38300 to 38450
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
75 :    280A 17   38450 to 38600
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
Comments: AVG.DEN=1.81
76 :    280A 18   40516 to 40650
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
77 :    280A 19   44300 to 44450
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
78 :    280A 19   44450 to 44600
Components: clay minerals
Geologic Age: Eocene
Comments: AVG.DEN=1.90
79 :    280A 19   44600 to 44750
Primary composition: terrigenous
Geologic Age: Eocene
80 :    280A 19   44750 to 44900
Primary composition: terrigenous
Geologic Age: Eocene
Comments: AVG.DEN=1.88
81 :    280A 19   44900 to 45050
Primary composition: terrigenous
Geologic Age: Eocene
82 :    280A 19   45050 to 45200
Primary composition: terrigenous
Geologic Age: Eocene
Comments: AVG.DEN=1.87
83 :    280A 20   48120 to 48250
Primary composition: terrigenous
Geologic Age: Eocene
84 :    280A 20   48250 to 48400
Primary composition: terrigenous
Geologic Age: Eocene
Comments: AVG.DEN=1.81
85 :    280A 20   48400 to 48550
Primary composition: terrigenous
Geologic Age: Eocene
86 :    280A 21   50950 to 51100
Primary composition: terrigenous
Geologic Age: Eocene
Comments: AVG.DEN=1.85
87 :    280A 21   51100 to 51250
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Eocene
Comments: AVG.DEN=1.97
88 :    280A 22   51293 to 51400
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Eocene
Comments: AVG.DEN=1.76
89 :    280A 22   51410 to 51410
Primary composition: terrigenous
Geologic Age: Eocene
90 :    280A 23   51973 to 52050
Primary composition: terrigenous
Geologic Age: unknown
Comments: AVG.DEN=2.29
91 :    280A 23   52050 to 52186
Primary composition: terrigenous
Geologic Age: unknown
Comments: AVG.DEN=2.16
92 :    280A 23   52186 to 52195
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
Comments: AVG.DEN=2.04
93 :    280A 23   52200 to 52210
Primary composition: terrigenous
Geologic Age: unknown
94 :    280A 23   52210 to 52253
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
95 :    280A 23   52253 to 52309
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
96 :    280A 23   52309 to 52326
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
Geologic Age: unknown
97 :    280A 23   52326 to 52350
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
98 :    280A 23   52350 to 52360
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
Comments: AVG.DEN=1.81
99 :    280A 23   52360 to 52388
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
Comments: AVG.DEN=1.89
100 :    280A 23   52388 to 52500
Geologic Age: unknown
Comments: AVG.DEN=2.14 BASALT (THOLEIITIC)
_



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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