Table T3. Results
of X-ray diffraction analysis of bulk fine-grained sediments, Site 1115.
Core,
section,
interval (cm)Depth
(mbsf)Description
XRD
identification: major (minor) minerals
180-1115A-
1H-3, 133.5-134.5
2.84
Foraminifer-bearing
nannofossil ooze
Calcite (aragonite,
quartz)
180-1115B-
1H-2, 135-136
2.85
Foraminifer-bearing
nannofossil ooze
Calcite (aragonite,
quartz)
1H-5, 85-86
6.85
Foraminifer-bearing
nannofossil ooze
Calcite (aragonite,
quartz)
2H-2, 73-74
9.43
Silty clay nannofossil
ooze
Calcite (quartz,
aragonite)
3H-1, 51-52
17.21
Silty clay nannofossil
ooze
Calcite (quartz,
aragonite)
4H-1, 69-70
26.89
Clay nannofossil ooze
Calcite (quartz,
amphibole)
5H-2, 57-58
37.77
Nannofossil clay
Calcite (quartz,
amphibole)
6H-1, 43.5-44
45.63
Nannofossil clay
Calcite (quartz,
plagioclase)
7H-1, 49-49.5
55.19
Calcareous clay
Calcite (aragonite,
quartz, plagioclase)
8H-1, 65-66
64.85
Calcareous clay
Calcite (quartz,
aragonite, plagioclase)
9H-6, 92-93
82.12
Calcareous clay
Calcite (quartz,
aragonite, plagioclase)
10H-4, 142.5-144
89.13
Nannofossil-rich silty
clay
Calcite (aragonite,
quartz, plagioclase)
11H-2, 128-130
95.48
Nannofossil-rich silty
clay
Calcite (aragonite,
quartz, plagioclase)
12H-4, 139-140
108.09
Nannofossil-rich silty
clay
Calcite (aragonite,
quartz, plagioclase)
13H-6, 127-128
120.47
Nannofossil-rich silty
clay
Calcite (quartz,
plagioclase)
14H-4, 62.5-63.5
126.32
Nannofossil-rich silty
clay
Calcite (plagioclase,
quartz)
15H-4, 113-114
136.33
Nannofossil-rich silty
clay
Calcite (plagioclase)
16H-1, 58-59
140.78
Nannofossil-rich silty
clay
Calcite (plagioclase,
quartz)
17H-2, 49-50
151.69
Nannofossil-rich silty
clay
Calcite (plagioclase,
quartz)
18H-1, 42-44
159.62
Calcareous clay
Calcite (quartz,
plagioclase, chlorite)
19H-1, 26-27
168.96
Calcareous clay
Calcite (quartz,
plagioclase, illite)
20H-1, 32-33
178.52
Calcareous clay
Calcite (quartz,
plagioclase, illite)
21H-1, 33-33.5
188.03
Calcareous clay
Calcite (quartz,
plagioclase, illite)
22H-1, 32-33
197.52
Calcareous clay
Calcite (quartz,
plagioclase, illite, chlorite, amphibole)
23H-1, 29-30
206.99
Calcareous clay
Calcite (quartz,
plagioclase, illite)
24X-3, 117-118
220.37
Nannofossil-bearing
silty clay
Calcite (quartz,
plagioclase, illite)
25X-3, 118-120
229.98
Nannofossil-bearing
silty clay
Calcite (quartz,
plagioclase, dolomite)
26X-4, 66-67
240.56
Nannofossil-rich silty
clay
Dolomite, ?ankerite,
calcite, plagioclase (quartz, illite)
27X-4, 58-59
250.08
Nannofossil-rich silty
clay
Calcite, plagioclase (illite,
chlorite)
28X-1, 83.5-84.5
255.43
Calcareous silty clay
Calcite, plagioclase,
quartz, dolomite, illite (amphibole)
29X-7, 19-20
273.49
Nannofossil-rich silty
clay
Calcite, plagioclase,
quartz, illite (amphibole)
31X-1, 28-29
283.78
Calcareous silty clay
Calcite, plagioclase,
quartz, illite, amphibole (pyroxene)
180-1115C-
1R-1, 30-31
283.50
Silty calcareous clay
Calcite, plagioclase,
quartz, illite (amphibole, pyrite)
2R-1, 9-11
292.89
Silty calcareous
claystone
Dolomite (plagioclase,
quartz, illite)
2R-1, 38-40
293.18
Silty calcareous
claystone
Calcite, plagioclase,
quartz, illite, amphibole (pyrite)
3R-1, 19-20
302.69
Calcareous claystone
Calcite, plagioclase,
quartz (illite, amphibole, pyrite)
4R-1, 107-109
313.17
Calcareous claystone
Calcite, plagioclase,
quartz (illite, amphibole, pyrite)
5R-1, 39-41
322.09
Calcareous silty
claystone
Calcite, quartz,
plagioclase (illite, amphibole, pyrite)
6R-1, 31-32
331.71
Calcareous silty
claystone
Calcite, quartz,
plagioclase (illite, amphibole, pyrite)
7R-1, 78.5-80
341.79
Silty claystone
Calcite, quartz,
plagioclase (illite, amphibole, pyrite)
8R-2, 18-20
351.62
Calcareous silty
claystone
Calcite, quartz,
plagioclase (illite, pyrite)
9R-4, 35-36
364.06
Silty claystone
Calcite, quartz,
plagioclase (illite, amphibole, pyrite)
10R-4, 113.5-115.5
375.14
Calcareous silty
claystone
Calcite, quartz,
plagioclase (illite, amphibole, pyrite)
11R-1, 14-16
379.24
Calcareous silty
claystone
Calcite, quartz,
plagioclase (illite, amphibole, pyrite)
12R-1, 30-32
388.80
Calcareous silty
claystone
Calcite, quartz,
plagioclase, illite, amphibole, pyrite
13R-1, 78-79
398.88
Calcareous sandy silty
claystone
Calcite, quartz,
plagioclase, illite (amphibole, pyrite)
14R-1, 53-54
408.23
Calcareous sandy silty
claystone
Calcite, quartz,
plagioclase (illite, amphibole)
15R-1, 59-60
417.89
Silty sandstone
Calcite, plagioclase,
quartz (aragonite, illite)
16R-CC, 3-4
428.58
Sandstone
Plagioclase, calcite,
quartz (illite, amphibole, pyrite)
17R-2, 55.5-56
438.24
Calcareous silty
sandstone
Plagioclase, quartz,
calcite, pyroxene (illite, amphibole, pyrite, aragonite)
18R-2, 66-68
448.24
Mixed silty sandstone
Quartz, plagioclase,
calcite, illite, pyrite (amphibole)
19R-1, 18.5-19
455.79
Sandstone
Quartz, plagioclase,
calcite, illite (pyrite, amphibole, chlorite))
21R-1, 10-11
475.00
Siltstone-claystone
Calcite, plagioclase,
quartz, illite, aragonite (amphibole, chlorite)
21R-2, 8-9
475.80
Foraminifer-bearing
siltstone-sandstone
Calcite, plagioclase,
quartz, illite (chlorite)
22R-5, 11.5-12
489.87
Silty sandstone
Calcite, plagioclase,
quartz, illite (aragonite, pyrite)
23R-2, 145-147
496.93
Silty sandstone
Calcite, plagioclase,
quartz, illite
24R-1, 111-112
504.91
Sandy siltstone
Plagioclase, quartz,
calcite, illite (chlorite)
25R-2, 43-44
515.33
Sandstone
Plagioclase, quartz (illite,
calcite, pyrite)
26R-1, 13-15
523.13
Sandstone (limestone?)
Calcite, plagioclase,
quartz (amphibole)
27R-1, 19-20
532.79
Silty sand
Plagioclase, quartz
(aragonite, amphibole)
29R-1, 78-80
552.58
Sandstone
Calcite (plagioclase,
k-feldspar, quartz)
29R-1, 127-128
553.07
Sandstone
Plagioclase, quartz,
amphibole, smectite?
29R-2, 99-100
554.24
Silty claystone
Quartz, plagioclase,
smectite?
30R-2, 125-126
563.18
Organic-rich silty
claystone
Pyrite, quartz,
plagioclase, smectite?
30R-4, 56-57
565.36
Silty claystone
Plagioclase, quartz (smectite?)
31R-1, 101-101.5
572.01
Calcareous siltstone
Calcite, plagioclase
32R-1, 45-46
581.05
Silty claystone
Pyroxene, plagioclase,
smectite?
33R-1, 21-23
590.41
Siltstone
Pyroxene, plagioclase,
zeolite (hematite, smectite?, illite)
34R-1, 51-51.5
600.31
Siltstone
Plagioclase, calcite,
zeolite, pyroxene, hematite, smectite? (illite, amphibole)
35R-4, 24-25
613.91
Silty claystone
Pyroxene, plagioclase
36R-1, 83-84
619.93
Claystone-siltstone
Pyroxene, plagioclase,
zeolite, Fe-oxide minerals, smectite?
40R-3, 83-84
661.63
Calcareous silty
sandstone
Plagioclase (calcite,
quartz, zeolite, smectite?)
41R-4, 6-7
671.92
Calcareous silty
sandstone
Plagioclase, calcite,
quartz, smectite? (zeolite)
42R-4, 70-71
681.59
Sandy siltstone
Plagioclase, calcite
(quartz, smectite?, zeolite)
43R-2, 53-55
688.83
Silty sandstone
Plagioclase, calcite
(pyroxene, quartz, smectite?, zeolite)
44R-1, 30-32
696.80
Calcareous sandy
siltstone
Plagioclase, calcite,
pyroxene (quartz, smectite?, zeolite)
45R-1, 49-50
706.59
Siltstone
Plagioclase, calcite
(quartz, zeolite, smectite?)
46R-2, 7-9
716.92
Siltstone
Plagioclase, calcite,
quartz, pyroxene (zeolite, smectite?)
47R-2, 3-5
726.79
Siltstone-sandstone
Plagioclase, pyroxene
(quartz, zeolite, smectite?)
48R-1, 41-43
735.51
Siltstone
Plagioclase, calcite
(quartz, zeolite, smectite?)
49R-2, 22-23
746.21
Siltstone
Plagioclase, calcite,
quartz (smectite?, zeolite)
50R-1, 28-29
754.58
Siltstone
Plagioclase, calcite,
pyroxene, quartz (smectite, zeolite, chlorite)
51R-2, 63-65
765.85
Siltstone
Plagioclase, calcite,
quartz (smectite, zeolite, chlorite)
53R-3, 16-17
786.20
Calcareous silty sand
Plagioclase, calcite,
pyroxene (chlorite, smectite?, zeolite)
54R-7, 104-105
801.87
Sandy siltstone
Plagioclase, calcite,
quartz (chlorite, smectite?)
Note: See "Lithostratigraphy" in "Site 1115" chapter for discussion.