Repository:	International Ocean Discovery Program Contact the Curator
Ship:	Glomar Challenger
Cruise:	31
Hole:	301
Device:	drill
Latitude:	41.063
Longitude:	134.048
Water Depth(m):	3520
Date:	19730730
IGSN:	ODP006508
Core length (cm):	49360
Diameter (cm):	7
Storage:	refrigerated
Site/hole data at IODP Hole DSDP prime core data at NCEI 31 publications at IODP 31 data at IODP 31 data at NCEI

1 :    301 1   0 to 300
Comments:	NO LITH DATA
2 :    301 2   11750 to 11860
Primary composition:	terrigenous
Geologic Age:	Pleistocene
3 :    301 2   11860 to 11867
Primary composition:	terrigenous
Geologic Age:	Pleistocene
4 :    301 2   11867 to 11900
Primary composition:	terrigenous
Geologic Age:	Pleistocene
5 :    301 2   11900 to 12030
Primary composition:	terrigenous
Geologic Age:	Pleistocene
Comments:	AVG.DEN=1.38
6 :    301 2   12030 to 12050
Primary composition:	terrigenous
Geologic Age:	Pleistocene
Comments:	AVG.DEN=1.46
7 :    301 2   12050 to 12072
Primary composition:	terrigenous
Geologic Age:	Pleistocene
8 :    301 2   12072 to 12194
Primary composition:	terrigenous
Components:	clay minerals
Geologic Age:	Pleistocene
9 :    301 2   12200 to 12350
Primary composition:	terrigenous
Geologic Age:	Pleistocene
Comments:	AVG.DEN=1.37
10 :    301 2   12350 to 12392
Primary composition:	terrigenous
Geologic Age:	Pleistocene
11 :    301 2   12392 to 12425
Primary composition:	terrigenous
Geologic Age:	Pleistocene
12 :    301 2   12450 to 12500
Primary composition:	siliceous, diatoms
Components:	clay minerals
Geologic Age:	Pleistocene
13 :    301 2   12500 to 12547
Primary composition:	terrigenous
Geologic Age:	Pleistocene
14 :    301 2   12558 to 12613
Primary composition:	terrigenous
Geologic Age:	Pleistocene
15 :    301 2   12660 to 12660
Primary composition:	terrigenous
Components:	clay minerals siliceous, diatoms
Geologic Age:	unknown
16 :    301 3   13676 to 13702
Primary composition:	terrigenous
Geologic Age:	Pleistocene
17 :    301 3   13702 to 13705
Primary composition:	terrigenous
Geologic Age:	Pleistocene
18 :    301 3   13705 to 13750
Primary composition:	terrigenous
Geologic Age:	Pleistocene
19 :    301 3   13760 to 13820
Primary composition:	terrigenous
Geologic Age:	Pleistocene
Comments:	AVG.DEN=1.45
20 :    301 3   13820 to 13870
Primary composition:	terrigenous
Geologic Age:	Pleistocene
Comments:	AVG.DEN=1.51
21 :    301 3   13870 to 13883
Primary composition:	terrigenous
Geologic Age:	Pleistocene
Comments:	AVG.DEN=1.39
22 :    301 3   13883 to 13888
Primary composition:	terrigenous
Geologic Age:	Pleistocene
Comments:	AVG.DEN=1.74
23 :    301 3   13910 to 13910
Primary composition:	terrigenous
Geologic Age:	Pleistocene
24 :    301 4   15500 to 15610
Primary composition:	terrigenous
Geologic Age:	Pleistocene
25 :    301 4   15650 to 15800
Primary composition:	terrigenous
Geologic Age:	Pleistocene
26 :    301 4   15820 to 15845
Primary composition:	terrigenous
Geologic Age:	Pleistocene
27 :    301 4   15845 to 15872
Primary composition:	terrigenous
Geologic Age:	Pleistocene
28 :    301 4   15872 to 15879
Geologic Age:	Pleistocene
29 :    301 4   15907 to 15934
Geologic Age:	Pleistocene
30 :    301 4   15934 to 15945
Geologic Age:	Pleistocene
31 :    301 4   15981 to 15993
Geologic Age:	Pleistocene
32 :    301 4   15993 to 16045
Geologic Age:	Pleistocene
33 :    301 4   16045 to 16090
Geologic Age:	Pleistocene
34 :    301 4   16115 to 16144
Geologic Age:	Pleistocene
35 :    301 4   16144 to 16210
Geologic Age:	Pleistocene
36 :    301 4   16210 to 16234
Geologic Age:	Pleistocene
37 :    301 4   16260 to 16260
Components:	clay minerals siliceous, diatoms
Geologic Age:	Pleistocene
38 :    301 5   17477 to 17500
Geologic Age:	Pleistocene
39 :    301 5   17500 to 17550
Geologic Age:	Pleistocene
40 :    301 5   17550 to 17604
Geologic Age:	Pleistocene
41 :    301 5   17610 to 17700
Geologic Age:	Pleistocene
42 :    301 5   17730 to 17755
Primary composition:	terrigenous
Components:	clay minerals
Geologic Age:	Pleistocene
43 :    301 5   17755 to 17780
Primary composition:	terrigenous
Geologic Age:	Pleistocene
44 :    301 5   17780 to 17850
Primary composition:	terrigenous
Geologic Age:	Pleistocene
45 :    301 5   17850 to 17998
Primary composition:	terrigenous
Geologic Age:	Pleistocene
46 :    301 5   18000 to 18043
Primary composition:	terrigenous
Geologic Age:	Pleistocene
47 :    301 5   18185 to 18300
Primary composition:	terrigenous
Geologic Age:	Pleistocene
Comments:	AVG.DEN=1.71
48 :    301 5   18310 to 18310
Primary composition:	terrigenous
Geologic Age:	Pliocene
49 :    301 6   19300 to 20250
Comments:	NO LITH DATA
50 :    301 7   21322 to 21328
Primary composition:	terrigenous
Geologic Age:	Pliocene
51 :    301 7   21328 to 21337
Primary composition:	terrigenous
Components:	clay minerals
Geologic Age:	Pliocene
52 :    301 7   21337 to 21350
Primary composition:	terrigenous
Geologic Age:	Pliocene
53 :    301 8   24050 to 24111
Primary composition:	siliceous, diatoms
Geologic Age:	Pliocene
54 :    301 8   24111 to 24113
Primary composition:	terrigenous
Geologic Age:	Pliocene
55 :    301 8   24113 to 24165
Primary composition:	siliceous, diatoms
Geologic Age:	Pliocene
56 :    301 8   24200 to 24211
Primary composition:	siliceous, diatoms
Geologic Age:	Pliocene
57 :    301 8   24211 to 24220
Primary composition:	terrigenous
Geologic Age:	Pliocene
58 :    301 8   24308 to 24350
Primary composition:	siliceous, diatoms
Geologic Age:	Pliocene
59 :    301 8   24353 to 24500
Primary composition:	siliceous, diatoms
Geologic Age:	Pliocene
60 :    301 8   24520 to 24548
Primary composition:	siliceous, diatoms
Geologic Age:	Pliocene
61 :    301 8   24590 to 24650
Primary composition:	siliceous, diatoms
Geologic Age:	Pliocene
62 :    301 8   24660 to 24660
Primary composition:	siliceous
Geologic Age:	Pliocene
63 :    301 9   27005 to 27050
Primary composition:	siliceous, diatoms
Components:	clay minerals
Geologic Age:	Pliocene
64 :    301 9   27060 to 27060
Components:	zeolites clay minerals
Geologic Age:	Pliocene
65 :    301 10   29750 to 29783
Primary composition:	siliceous, diatoms
Components:	clay minerals
Geologic Age:	Pliocene
66 :    301 11   31705 to 31771
Primary composition:	siliceous, diatoms
Components:	clay minerals
Geologic Age:	Pliocene
67 :    301 11   31771 to 31800
Primary composition:	siliceous
Geologic Age:	Pliocene
68 :    301 11   31812 to 31888
Primary composition:	siliceous
Geologic Age:	Pliocene
69 :    301 11   31904 to 31905
Primary composition:	siliceous
Geologic Age:	Pliocene
70 :    301 11   31960 to 31960
Primary composition:	siliceous
Geologic Age:	Pliocene
71 :    301 12   33560 to 33560
Primary composition:	siliceous, diatoms
Components:	clay minerals
Geologic Age:	Pliocene
72 :    301 13   35490 to 35592
Primary composition:	siliceous, diatoms
Components:	clay minerals
Geologic Age:	Pliocene
73 :    301 13   35592 to 35600
Primary composition:	siliceous, diatoms
Geologic Age:	Pliocene
74 :    301 13   35610 to 35610
Primary composition:	siliceous, diatoms
Geologic Age:	Pliocene
75 :    301 14   37410 to 37500
Primary composition:	siliceous, diatoms
Components:	clay minerals
Geologic Age:	unknown
76 :    301 14   37510 to 37510
Primary composition:	siliceous, diatoms
Geologic Age:	unknown
77 :    301 15   39250 to 39300
Primary composition:	siliceous
Geologic Age:	Miocene
78 :    301 15   39300 to 39350
Primary composition:	siliceous, diatoms
Components:	clay minerals
Geologic Age:	Miocene
79 :    301 15   39470 to 39550
Primary composition:	siliceous, diatoms
Geologic Age:	Miocene
80 :    301 15   39596 to 39695
Primary composition:	siliceous, diatoms
Geologic Age:	Miocene
81 :    301 15   39700 to 39850
Primary composition:	siliceous, diatoms
Geologic Age:	Miocene
Comments:	AVG.DEN=1.62
82 :    301 15   39860 to 39860
Primary composition:	siliceous, diatoms
Geologic Age:	Miocene
83 :    301 16   42173 to 42250
Primary composition:	siliceous, diatoms
Geologic Age:	Miocene
84 :    301 16   42260 to 42260
Primary composition:	siliceous, diatoms
Geologic Age:	Miocene
85 :    301 17   44982 to 45100
Primary composition:	terrigenous
Geologic Age:	Miocene
86 :    301 17   45110 to 45110
Primary composition:	terrigenous
Components:	clay minerals siliceous, diatoms
Geologic Age:	Miocene
87 :    301 18   46915 to 47000
Primary composition:	terrigenous
Geologic Age:	Miocene
88 :    301 18   47000 to 47150
Primary texture:	terrigenous clastic sedimentary rock
Components:	zeolites
Geologic Age:	Miocene
Comments:	AVG.DEN=1.54
89 :    301 18   47155 to 47158
Primary composition:	terrigenous
Geologic Age:	Miocene
90 :    301 18   47158 to 47190
Primary composition:	terrigenous
Geologic Age:	Miocene
91 :    301 18   47212 to 47239
Primary composition:	terrigenous
Geologic Age:	Miocene
92 :    301 18   47272 to 47295
Primary composition:	terrigenous
Geologic Age:	Miocene
93 :    301 18   47305 to 47450
Primary composition:	terrigenous
Geologic Age:	Miocene
Comments:	AVG.DEN=1.61
94 :    301 18   47460 to 47460
Primary texture:	terrigenous clastic sedimentary rock
Components:	siliceous, diatoms
Geologic Age:	Miocene
95 :    301 19   47872 to 47900
Primary composition:	siliceous
Secondary texture:	chert or porcelanite
Geologic Age:	Miocene
96 :    301 19   47950 to 47975
Primary texture:	terrigenous clastic sedimentary rock
Geologic Age:	Miocene
97 :    301 19   48020 to 48035
Primary composition:	terrigenous
Geologic Age:	Miocene
98 :    301 19   48054 to 48075
Primary composition:	terrigenous
Geologic Age:	Miocene
99 :    301 19   48100 to 48250
Primary composition:	siliceous, diatoms
Components:	clay minerals
Geologic Age:	Miocene
100 :    301 19   48250 to 48400
Primary composition:	calcareous, biogenic
Components:	clay minerals
Geologic Age:	Miocene
101 :    301 19   48560 to 48560
Primary texture:	terrigenous clastic sedimentary rock
Components:	siliceous, diatoms
Geologic Age:	Miocene
102 :    301 20   48835 to 48900
Primary texture:	terrigenous clastic sedimentary rock
Components:	siliceous, diatoms
Geologic Age:	Miocene
103 :    301 20   49010 to 49024
Primary texture:	terrigenous clastic sedimentary rock
Components:	siliceous, diatoms
Geologic Age:	Miocene
104 :    301 20   49024 to 49034
Primary composition:	terrigenous
Geologic Age:	Miocene
105 :    301 20   49034 to 49050
Primary composition:	terrigenous
Geologic Age:	Miocene
106 :    301 20   49050 to 49112
Primary texture:	terrigenous clastic sedimentary rock
Components:	siliceous, diatoms
Geologic Age:	Miocene
Comments:	AVG.DEN=1.72
107 :    301 20   49112 to 49117
Primary composition:	terrigenous
Geologic Age:	Miocene
Comments:	AVG.DEN=1.64
108 :    301 20   49117 to 49179
Primary texture:	terrigenous clastic sedimentary rock
Geologic Age:	Miocene
Comments:	AVG.DEN=1.51
109 :    301 20   49200 to 49315
Primary texture:	terrigenous clastic sedimentary rock
Components:	clay minerals siliceous, diatoms
Geologic Age:	Miocene
110 :    301 20   49360 to 49360
Primary composition:	siliceous
Components:	siliceous, diatoms siliceous, sponge spicules
Geologic Age:	Miocene