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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: 28
Hole: 274
Device: drill
Latitude: -68.997
Longitude: 173.427
Water Depth(m): 3305
Date: 19730216
IGSN: ODP005661
Core length (cm): 42100
Diameter (cm): 7
Storage: refrigerated
1 :    274 1   0 to 150
Primary composition: terrigenous
Primary texture: muddy sand
Components: clay minerals
Geologic Age: unknown
2 :    274 1   150 to 300
Primary composition: siliceous, diatoms
Geologic Age: unknown
3 :    274 1   300 to 450
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.41
4 :    274 1   450 to 600
Primary composition: siliceous, diatoms
Geologic Age: unknown
Comments: AVG.DEN=1.39
5 :    274 1   600 to 750
Primary composition: siliceous, diatoms
Geologic Age: unknown
Comments: AVG.DEN=1.44
6 :    274 1   750 to 900
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.45
7 :    274 1   910 to 910
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
8 :    274 2   1090 to 1100
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
9 :    274 2   1100 to 1250
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.51
10 :    274 2   1250 to 1400
Primary composition: siliceous, diatoms
Geologic Age: unknown
11 :    274 2   1400 to 1415
Primary composition: siliceous, diatoms
Geologic Age: unknown
Comments: AVG.DEN=1.50
12 :    274 2   1415 to 1425
Primary composition: siliceous, diatoms
Geologic Age: unknown
Comments: AVG.DEN=1.53
13 :    274 2   1425 to 1550
Primary composition: siliceous, diatoms
Geologic Age: unknown
Comments: AVG.DEN=1.53
14 :    274 2   1550 to 1700
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.56
15 :    274 2   1700 to 1850
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.52
16 :    274 2   1860 to 1860
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
17 :    274 3   1931 to 2050
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
18 :    274 3   2050 to 2200
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.50
19 :    274 3   2200 to 2350
Primary composition: siliceous, diatoms
Geologic Age: unknown
20 :    274 3   2350 to 2500
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.55
21 :    274 3   2500 to 2650
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.57
22 :    274 3   2650 to 2800
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.54
23 :    274 3   2810 to 2810
Primary composition: siliceous, diatoms
Geologic Age: unknown
24 :    274 4   2850 to 2996
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
25 :    274 4   3000 to 3150
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Pliocene
26 :    274 4   3160 to 3160
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Pliocene
27 :    274 5   3906 to 3950
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.42
28 :    274 5   3950 to 4065
Primary composition: siliceous
Geologic Age: Pliocene
Comments: AVG.DEN=1.50
29 :    274 5   4065 to 4100
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.52
30 :    274 5   4100 to 4140
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.47
31 :    274 5   4140 to 4180
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.49
32 :    274 5   4180 to 4250
Primary composition: terrigenous
Components: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.47
33 :    274 5   4260 to 4260
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Pliocene
34 :    274 6   4800 to 4950
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
35 :    274 6   4950 to 5100
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Pliocene
Comments: AVG.DEN=1.53
36 :    274 6   5100 to 5227
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
37 :    274 6   5227 to 5250
Primary composition: terrigenous
Geologic Age: Pliocene
38 :    274 6   5250 to 5370
Primary composition: terrigenous
Geologic Age: Pliocene
Comments: AVG.DEN=1.53
39 :    274 6   5400 to 5550
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
40 :    274 6   5550 to 5700
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.45
41 :    274 6   5710 to 5710
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
42 :    274 7   5706 to 5845
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.44
43 :    274 7   5850 to 6000
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.53
44 :    274 7   6010 to 6010
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
45 :    274 8   6660 to 6660
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
46 :    274 9   7621 to 7750
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
47 :    274 9   7750 to 7900
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.42
48 :    274 9   7900 to 8050
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.51
49 :    274 9   8050 to 8150
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
50 :    274 9   8150 to 8200
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
51 :    274 9   8200 to 8350
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.52
52 :    274 9   8350 to 8500
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
53 :    274 9   8510 to 8510
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
54 :    274 10   8605 to 8700
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
55 :    274 10   8700 to 8850
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.44
56 :    274 10   8850 to 9000
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
57 :    274 10   9000 to 9150
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.49
58 :    274 10   9150 to 9300
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Pliocene
59 :    274 10   9300 to 9450
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
Comments: AVG.DEN=1.43
60 :    274 10   9460 to 9460
Primary composition: siliceous, diatoms
Geologic Age: Pliocene
61 :    274 11   9614 to 9650
Primary composition: siliceous
Geologic Age: Miocene
62 :    274 11   9650 to 9800
Primary composition: siliceous, diatoms
Geologic Age: Miocene
Comments: AVG.DEN=1.44
63 :    274 11   9800 to 9945
Primary composition: siliceous, diatoms
Geologic Age: Miocene
Comments: AVG.DEN=1.42
64 :    274 11   9950 to 10100
Primary composition: siliceous, diatoms
Geologic Age: Miocene
Comments: AVG.DEN=1.43
65 :    274 11   10110 to 10110
Primary composition: siliceous, diatoms
Geologic Age: Miocene
66 :    274 12   10546 to 10600
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
67 :    274 12   10600 to 10750
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.61
68 :    274 12   10750 to 10900
Primary composition: siliceous, diatoms
Geologic Age: Miocene
69 :    274 12   10900 to 11050
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.60
70 :    274 12   11050 to 11200
Primary composition: siliceous, diatoms
Geologic Age: Miocene
71 :    274 12   11200 to 11350
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.67
72 :    274 13   11437 to 11550
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
73 :    274 13   11550 to 11700
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.51
74 :    274 13   11700 to 11850
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
75 :    274 13   11850 to 12000
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.54
76 :    274 13   12000 to 12150
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.54
77 :    274 13   12150 to 12300
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
78 :    274 14   12400 to 12550
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
79 :    274 14   12550 to 12700
Primary composition: siliceous, diatoms
Geologic Age: Miocene
Comments: AVG.DEN=1.57
80 :    274 14   12700 to 12850
Primary composition: siliceous, diatoms
Geologic Age: Miocene
81 :    274 14   12850 to 13000
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.59
82 :    274 14   13000 to 13150
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
83 :    274 14   13150 to 13300
Primary composition: siliceous, diatoms
Geologic Age: Miocene
Comments: AVG.DEN=1.59
84 :    274 15   13350 to 13500
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
85 :    274 15   13500 to 13650
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
86 :    274 15   13650 to 13794
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
87 :    274 15   13800 to 13815
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
88 :    274 15   13815 to 13950
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
89 :    274 15   13950 to 14097
Primary composition: terrigenous
Geologic Age: Miocene
90 :    274 15   14100 to 14250
Primary composition: siliceous, diatoms
Geologic Age: Miocene
91 :    274 16   14250 to 14400
Primary composition: siliceous, diatoms
Geologic Age: Miocene
Comments: AVG.DEN=1.59
92 :    274 16   14400 to 14430
Primary composition: terrigenous
Components: siliceous, diatoms
Geologic Age: Miocene
Comments: AVG.DEN=1.69
93 :    274 16   14430 to 14547
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.83
94 :    274 16   14550 to 14700
Primary composition: terrigenous
Components: clay minerals
siliceous, diatoms
Geologic Age: Miocene
Comments: AVG.DEN=1.67
95 :    274 17   15320 to 15350
Primary composition: terrigenous
Geologic Age: Miocene
96 :    274 17   15350 to 15500
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.53
97 :    274 17   15500 to 15565
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.66
98 :    274 17   15565 to 15650
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.63
99 :    274 18   16150 to 16300
Primary composition: terrigenous
Geologic Age: Miocene
100 :    274 18   16300 to 16421
Primary composition: terrigenous
Geologic Age: Miocene
Comments: AVG.DEN=1.93
101 :    274 18   16421 to 16432
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: Miocene
Comments: AVG.DEN=1.69
102 :    274 18   16432 to 16450
Primary composition: terrigenous
Geologic Age: Miocene
Comments: AVG.DEN=1.69
103 :    274 18   16450 to 16600
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.67
104 :    274 18   16600 to 16750
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.68
105 :    274 18   16750 to 16900
Primary composition: terrigenous
Geologic Age: Miocene
Comments: AVG.DEN=1.73
106 :    274 19   17178 to 17250
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.53
107 :    274 19   17250 to 17400
Primary composition: terrigenous
Geologic Age: Miocene
Comments: AVG.DEN=1.60
108 :    274 19   17400 to 17550
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.60
109 :    274 19   17550 to 17700
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
Comments: AVG.DEN=1.71
110 :    274 19   17700 to 17850
Primary composition: terrigenous
Components: clay minerals
Geologic Age: Miocene
111 :    274 19   17850 to 18000
Primary composition: siliceous, diatoms
Geologic Age: Miocene
Comments: AVG.DEN=1.59
112 :    274 20   18113 to 18250
Primary composition: siliceous
Geologic Age: Oligocene
Comments: AVG.DEN=1.39
113 :    274 20   18300 to 18400
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
114 :    274 20   18400 to 18550
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.37
115 :    274 20   18553 to 18700
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
116 :    274 20   18700 to 18850
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.37
117 :    274 20   18850 to 19000
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.40
118 :    274 21   19050 to 19200
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
119 :    274 21   19200 to 19350
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.37
120 :    274 21   19350 to 19500
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
121 :    274 21   19500 to 19650
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
122 :    274 21   19650 to 19800
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.37
123 :    274 21   19800 to 19945
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
124 :    274 22   20015 to 20100
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
125 :    274 22   20100 to 20250
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
126 :    274 22   20250 to 20400
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
127 :    274 22   20400 to 20550
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
128 :    274 22   20550 to 20700
Primary composition: siliceous
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
129 :    274 23   20948 to 21098
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.33
130 :    274 23   21098 to 21248
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
131 :    274 23   21248 to 21398
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
132 :    274 23   21398 to 21548
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.35
133 :    274 23   21548 to 21698
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.33
134 :    274 23   21698 to 21848
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
135 :    274 24   21884 to 22000
Primary composition: siliceous
Geologic Age: Oligocene
136 :    274 24   22003 to 22068
Primary composition: siliceous
Geologic Age: Oligocene
Comments: AVG.DEN=1.49
137 :    274 24   22085 to 22150
Primary composition: siliceous
Geologic Age: Oligocene
Comments: AVG.DEN=1.59
138 :    274 24   22150 to 22300
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.35
139 :    274 24   22300 to 22450
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.35
140 :    274 24   22450 to 22600
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.43
141 :    274 25   22800 to 22950
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.37
142 :    274 25   22950 to 23100
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
143 :    274 25   23100 to 23250
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.30
144 :    274 25   23250 to 23400
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.31
145 :    274 25   23400 to 23548
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.31
146 :    274 25   23550 to 23700
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.31
147 :    274 26   23770 to 23920
Primary composition: siliceous
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
148 :    274 26   23920 to 24070
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.33
149 :    274 26   24090 to 24220
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.30
150 :    274 26   24220 to 24370
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
151 :    274 26   24370 to 24520
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.35
152 :    274 26   24520 to 24670
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.33
153 :    274 27   24730 to 24850
Primary composition: siliceous
Geologic Age: Oligocene
154 :    274 27   24850 to 25000
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.38
155 :    274 27   25000 to 25150
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.37
156 :    274 27   25150 to 25300
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.39
157 :    274 28   25700 to 25850
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.35
158 :    274 28   25850 to 26000
Primary composition: calcareous, biogenic
Components: clay minerals
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
159 :    274 28   26000 to 26150
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.35
160 :    274 28   26150 to 26300
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
161 :    274 28   26300 to 26450
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.36
162 :    274 28   26450 to 26600
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
163 :    274 29   26675 to 26750
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
164 :    274 29   26769 to 26900
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.24
165 :    274 29   26908 to 27050
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.29
166 :    274 30   27600 to 27750
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.38
167 :    274 30   27750 to 27900
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.30
168 :    274 30   27900 to 28050
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.31
169 :    274 30   28050 to 28200
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
170 :    274 30   28200 to 28345
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
171 :    274 30   28350 to 28500
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.33
172 :    274 31   28540 to 28690
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.31
173 :    274 31   28690 to 28840
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
174 :    274 31   28840 to 28990
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
175 :    274 31   28990 to 29140
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
176 :    274 31   29140 to 29290
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
177 :    274 31   29290 to 29440
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.33
178 :    274 32   29528 to 29650
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.28
179 :    274 32   29650 to 29800
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.30
180 :    274 32   29800 to 29950
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.31
181 :    274 32   29950 to 30100
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.30
182 :    274 32   30100 to 30250
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
183 :    274 32   30250 to 30400
Primary composition: siliceous
Geologic Age: Oligocene
184 :    274 33   30463 to 30600
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
185 :    274 33   30608 to 30640
Primary composition: siliceous
Geologic Age: Oligocene
186 :    274 33   30640 to 30750
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
187 :    274 33   30750 to 30900
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
188 :    274 33   30900 to 31050
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.32
189 :    274 33   31050 to 31200
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
190 :    274 33   31200 to 31350
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.33
191 :    274 34   31411 to 31550
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.30
192 :    274 34   31568 to 31700
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.27
193 :    274 34   31700 to 31850
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.27
194 :    274 34   31875 to 32000
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.28
195 :    274 34   32000 to 32142
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.30
196 :    274 34   32150 to 32300
Primary composition: siliceous, diatoms
Geologic Age: Oligocene
Comments: AVG.DEN=1.34
197 :    274 35   32436 to 32450
Primary composition: siliceous
Secondary texture: chert or porcelanite
Geologic Age: unknown
198 :    274 35   32450 to 32583
Primary composition: siliceous
Secondary texture: chert or porcelanite
Geologic Age: unknown
199 :    274 35   32583 to 32600
Primary composition: siliceous
Secondary texture: chert or porcelanite
Geologic Age: unknown
200 :    274 36   33309 to 33400
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.56
201 :    274 36   33400 to 33550
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.50
202 :    274 37   34200 to 34350
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.46
203 :    274 38   35274 to 35300
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
Geologic Age: unknown
204 :    274 38   35300 to 35450
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.55
205 :    274 39   36125 to 36236
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
Geologic Age: unknown
206 :    274 39   36250 to 36300
Primary texture: terrigenous clastic sedimentary rock
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.51
207 :    274 39   36300 to 36333
Primary composition: calcareous, biogenic
Geologic Age: unknown
Comments: AVG.DEN=1.66
208 :    274 39   36333 to 36400
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
Comments: AVG.DEN=1.40
209 :    274 40   37084 to 37200
Primary composition: siliceous, diatoms
Geologic Age: unknown
210 :    274 41   38117 to 38150
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
211 :    274 41   38150 to 38300
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.61
212 :    274 41   38300 to 38395
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.61
213 :    274 41   38395 to 38450
Primary composition: calcareous, biogenic
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.71
214 :    274 42   38998 to 39024
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
215 :    274 42   39024 to 39040
Primary composition: terrigenous
Geologic Age: unknown
216 :    274 42   39040 to 39053
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
217 :    274 42   39053 to 39100
Primary composition: calcareous, biogenic
Geologic Age: unknown
218 :    274 42   39100 to 39110
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
Comments: AVG.DEN=1.51
219 :    274 42   39110 to 39250
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.49
220 :    274 42   39250 to 39400
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.54
221 :    274 43   39982 to 40050
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
222 :    274 43   40050 to 40200
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.61
223 :    274 43   40200 to 40348
Primary texture: terrigenous clastic sedimentary rock
Geologic Age: unknown
Comments: AVG.DEN=1.56
224 :    274 43   40350 to 40500
Primary composition: terrigenous
Components: clay minerals
Geologic Age: unknown
Comments: AVG.DEN=1.92
225 :    274 44   40982 to 41000
Geologic Age: unknown
Comments: NO LITH CODE. BASALT
226 :    274 44   41000 to 41150
Geologic Age: unknown
Comments: NO LITH CODE. BASALT
227 :    274 45   41934 to 41950
Geologic Age: unknown
Comments: NO LITH CODE. BASALT
228 :    274 45   41950 to 42100
Geologic Age: unknown
Comments: NO LITH CODE. BASALT
_



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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