Table 3.

Table T3. Results of X-ray diffraction analysis of bulk fine-grained sediments, Site 1118.

Core, section,
interval (cm) Depth
(mbsf) Description XRD identification: major (minor) minerals

180-1118A-

3R-CC, 4-6
224.14
Silty claystone
Plagioclase, calcite, pyroxene, quartz (illite, amphibole)

4R-CC, 9-11
233.79
Clayey siltstone
Quartz, plagioclase, calcite (pyroxene, k-feldspar, chlorite, chlorite mixed layer, illite, amphibole, pyrite)

5R-CC, 22-23
243.52
Sandstone
Plagioclase, quartz, calcite, pyroxene (chlorite mixed layer, illite, amphibole)

6R-3, 69.5-70
255.65
Volcaniclastic siltstone and claystone
Plagioclase, quartz, calcite, pyroxene, chlorite mixed layer (illite, smectite?, amphibole, pyrite)

7R-3, 25-26
265.33
Silty claystone
Calcite (plagioclase, quartz)

8R-5, 118-120
279.28
Silty claystone
Plagioclase, quartz, calcite, pyroxene (chlorite, smectite?, illite, pyrite)

9R-1, 29.5-30
281.99
Claystone
Plagioclase, quartz, calcite (pyroxene, chlorite mixed layer, smectite?, illite, pyrite)

10R-3, 39-40
294.79
Silty claystone
Plagioclase, calcite (quartz, pyroxene)

11R-1, 11-13
301.11
Clayey siltstone
Plagioclase, calcite (quartz, pyroxene)

13R-1, 6-8
320.36
Silty claystone
Plagioclase (calcite, biotite, quartz, pyroxene)

13R-1, 15-16
320.45
Silty claystone
Plagioclase (quartz)

13R-3, 64-65
232.91
Silty claystone/clayey siltstone
Plagioclase, calcite, quartz (chlorite, smectite?, pyrite)

15R-1, 11-13
339.81
Clayey siltstone
Plagioclase, calcite, pyroxene (dolomite, biotite, illite, chlorite)

16R-4, 29-30
353.80
Silty claystone/calcareous siltstone
Plagioclase, calcite, quartz (chlorite, smectite?, illite, amphibole)

17R-1, 42-44 cm
359.22
Silty claystone
Plagioclase, quartz, calcite, pyroxene (illite, chlorite, pyrite)

18R-3, 137-138
372.44
Silty claystone
Plagioclase, quartz, calcite, pyroxene (illite, chlorite, amphibole, pyrite)

19R-1, 137-138
379.17
Silty claystone
Plagioclase, quartz, pyroxene (calcite, illite, chlorite mixed layer?, amphibole, pyrite)

21R-1, 76-78
397.56
Silty claystone
Plagioclase, quartz, calcite, pyroxene (illite, chlorite, pyrite)

22R-1, 22-23
406.52
Silty claystone
Plagioclase, quartz, pyroxene, amphibole (illite, pyrite)

22R-3, 83-84
409.88
Clayey siltstone
Calcite, plagioclase, quartz, illite, chlorite

23R-5, 79-81
422.32
Silty claystone
Plagioclase, quartz, calcite, pyroxene, illite (chlorite)

24R-1, 32-34
425.92
Clayey siltstone/claystone
Plagioclase, quartz, calcite (chlorite, illite, pyrite)

25R-1, 16-18
435.36
Clayey siltstone/claystone
Plagioclase, calcite, quartz, pyroxene (illite, chlorite, smectite?, pyrite)

25R-6, 111-113
443.02
Silty claystone/clayey siltstone
Plagioclase, illite, quartz, calcite (pyroxene, amphibole)

26R-1, 14-16
444.94
Clayey siltstone
Plagioclase, calcite, quartz (illite, amphibole, pyrite)

27R-4, 68-69
459.41
Silty claystone/clayey siltstone
Plagioclase, calcite, quartz (pyroxene, illite, chlorite, amphibole, pyrite)

28R-4, 102-106
469.31
Siltstone/silty claystone
Plagioclase, quartz, illite (calcite, amphibole, pyroxene, pyrite)

29R-4, 80-81
478.77
Clayey siltstone
Quartz, plagioclase, calcite (chlorite, pyroxene, illite)

30R-3, 85-86
486.98
Clayey siltstone
Plagioclase, calcite, quartz (illite, chlorite, pyrite)

31R-CC, 10-11
501.52
Silty claystone
Plagioclase, quartz, calcite (pyroxene, amphibole, chlorite, illite, pyrite)

32R-3, 36-39
505.75
Silty claystone
Plagioclase, calcite, quartz (illite, smectite?, chlorite, pyroxene, amphibole)

33R-3, 56-60
515.41
Silty claystone
Plagioclase, quartz, calcite (illite, chlorite)

34R-1, 4-5
521.84
Siltstone
Plagioclase, quartz, calcite, pyroxene (smectite?, illite, chlorite)

34R-2, 93-95
524.07
Claystone
Plagioclase, quartz, calcite (chlorite, smectite?)

34R-3, 36-38
524.87
Claystone
Plagioclase, quartz, calcite (pyroxene, chlorite, smectite?, pyrite)

35R-1, 12-13
531.52
Silty claystone
Plagioclase, quartz, calcite (pyroxene, chlorite, smectite?, pyrite)

36R-4, 25-27
545.20
Siltstone-claystone
Quartz, plagioclase, calcite, pyroxene (pyrite, chlorite, illite, smectite?, amphibole)

36R-7, 5-7
549.08
Silty claystone
Plagioclase, calcite, quartz (chlorite, illite, amphibole, pyrite)

37R-5, 2-3
556.32
Siltstone
Calcite, plagioclase, quartz (amphibole, chlorite, smectite?)

38R-1, 49-51
560.79
Silty claystone-clayey siltstone
Calcite, plagioclase, quartz (illite, pyrite, amphibole, chlorite, smectite?)

38R-5, 16-19
566.12
Silty claystone-clayey siltstone
Calcite, quartz, plagioclase (chlorite, smectite?, illite)

39R-1, 38-39
570.38
Silty claystone-clayey siltstone
Quartz, plagioclase, calcite (chlorite, smectite?, illite)

40R-3, 42-43
582.64
Silty claystone-clayey siltstone
Calcite (quartz, plagioclase)

41R-5, 35-36
595.16
Siltstone-clayey siltstone
Plagioclase, quartz, illite, calcite (chlorite)

42R-3, 45-46
601.76
Clayey siltstone
Calcite, plagioclase, quartz (illite, amphibole, chlorite, pyrite)

43R-4, 44-45 cm
612.85
Silty claystone
Calcite, plagioclase, quartz (chlorite, illite)

44R-3, 21-23
621.06
Silty claystone
Calcite, plagioclase, quartz, amphibole (pyrite)

45R-2, 70-71
629.65
Claystone
Calcite, plagioclase, quartz (illite, chlorite, amphibole, pyrite)

46R-4, 83.5-85.5
642.37
Clayey siltstone
Calcite, plagioclase, quartz (illite, chlorite, amphibole)

47R-2, 83-85
649.11
Silty claystone
Plagioclase, calcite, quartz (pyroxene, chlorite, smectite?, illite, pyrite)

48R-1, 85-87
657.25
Silty claystone-clayey siltstone
Plagioclase, calcite, quartz (smectite?, illite, amphibole, pyrite)

49R-1, 103-105
667.03
Silty claystone-clayey siltstone
Calcite, quartz, plagioclase (illite)

50R-1, 75-76
676.35
Silty claystone-claystone
Plagioclase, quartz, pyroxene, calcite, illite

51R-3, 33-34
687.82
Sandstone-claystone
Calcite, plagioclase, quartz (illite, pyrite, amphibole)

53R-1, 123-124
705.93
Sandy siltstone
Plagioclase, calcite, quartz (amphibole, illite, pyrite)

55R-2, 12-14
725.09
Sandy siltstone
Calcite, plagioclase, quartz (illite, pyrite)

56R-3, 42-43
737.19
Silty sandstone
Calcite, plagioclase, quartz (pyrite, illite, amphibole)

57R-5, 64-65
749.40
Silty claystone
Calcite, plagioclase, quartz (amphibole, illite, pyrite)

58R-7, 22-24
761.53
Silty claystone
Calcite, plagioclase, quartz (illite, pyrite, amphibole, chlorite)

59R-3, 9-10
765.43
Silty claystone
Calcite, plagioclase, quartz, illite (pyrite, amphibole, chlorite)

59R-4, 24-25
767.04
Volcaniclastic sandstone-claystone
Quartz, plagioclase, illite, actinolite, calcite (pyrite)

60R-2, 10-12
773.76
Silty claystone-clayey siltstone
Calcite, quartz, plagioclase (illite, pyrite, smectite?)

61R-3, 28-30
784.74
Silty claystone
Calcite, quartz, plagioclase (illite, amphibole, pyrite)

62R-1, 17-19
791.67
Silty claystone-clayey siltstone
Calcite, quartz, plagioclase, illite (amphibole, pyrite)

63R-3, 8-9
803.72
Sandstone-claystone
Calcite, plagioclase, quartz (pyrite, illite)

64R-1, 75.5-77
811.46
Silty claystone
Plagioclase, calcite, quartz, illite (pyrite, amphibole)

65R-2, 29-31
822.02
Silty claystone
Calcite, plagioclase, quartz, illite (amphibole, pyrite)

66R-3, 86-88
833.60
Silty claystone
Plagioclase, quartz, calcite (illite, pyrite, amphibole)

67R-CC, 41-42
845.91
Calcareous volcaniclastic sandstone
Calcite, plagioclase, quartz, illite (amphibole)

68R-1, 87-88
850.17
Volcaniclastic sandstone
Calcite, plagioclase, quartz, amphibole, illite

69R-1, 27-28
859.27
Mixed sandstone (calcareous)
Calcite (K-feldspar, plagioclase)

70R-1, 14-15
868.84
Calcareous sandstone
Calcite (quartz, plagioclase)

71R-1, 13-14
878.53
Polymictic breccia
Plagioclase (quartz, K-feldspar, smectite?)

Core, section, interval (cm)	Depth (mbsf)	Description	XRD identification: major (minor) minerals
180-1118A-
3R-CC, 4-6	224.14	Silty claystone	Plagioclase, calcite, pyroxene, quartz (illite, amphibole)
4R-CC, 9-11	233.79	Clayey siltstone	Quartz, plagioclase, calcite (pyroxene, k-feldspar, chlorite, chlorite mixed layer, illite, amphibole, pyrite)
5R-CC, 22-23	243.52	Sandstone	Plagioclase, quartz, calcite, pyroxene (chlorite mixed layer, illite, amphibole)
6R-3, 69.5-70	255.65	Volcaniclastic siltstone and claystone	Plagioclase, quartz, calcite, pyroxene, chlorite mixed layer (illite, smectite?, amphibole, pyrite)
7R-3, 25-26	265.33	Silty claystone	Calcite (plagioclase, quartz)
8R-5, 118-120	279.28	Silty claystone	Plagioclase, quartz, calcite, pyroxene (chlorite, smectite?, illite, pyrite)
9R-1, 29.5-30	281.99	Claystone	Plagioclase, quartz, calcite (pyroxene, chlorite mixed layer, smectite?, illite, pyrite)
10R-3, 39-40	294.79	Silty claystone	Plagioclase, calcite (quartz, pyroxene)
11R-1, 11-13	301.11	Clayey siltstone	Plagioclase, calcite (quartz, pyroxene)
13R-1, 6-8	320.36	Silty claystone	Plagioclase (calcite, biotite, quartz, pyroxene)
13R-1, 15-16	320.45	Silty claystone	Plagioclase (quartz)
13R-3, 64-65	232.91	Silty claystone/clayey siltstone	Plagioclase, calcite, quartz (chlorite, smectite?, pyrite)
15R-1, 11-13	339.81	Clayey siltstone	Plagioclase, calcite, pyroxene (dolomite, biotite, illite, chlorite)
16R-4, 29-30	353.80	Silty claystone/calcareous siltstone	Plagioclase, calcite, quartz (chlorite, smectite?, illite, amphibole)
17R-1, 42-44 cm	359.22	Silty claystone	Plagioclase, quartz, calcite, pyroxene (illite, chlorite, pyrite)
18R-3, 137-138	372.44	Silty claystone	Plagioclase, quartz, calcite, pyroxene (illite, chlorite, amphibole, pyrite)
19R-1, 137-138	379.17	Silty claystone	Plagioclase, quartz, pyroxene (calcite, illite, chlorite mixed layer?, amphibole, pyrite)
21R-1, 76-78	397.56	Silty claystone	Plagioclase, quartz, calcite, pyroxene (illite, chlorite, pyrite)
22R-1, 22-23	406.52	Silty claystone	Plagioclase, quartz, pyroxene, amphibole (illite, pyrite)
22R-3, 83-84	409.88	Clayey siltstone	Calcite, plagioclase, quartz, illite, chlorite
23R-5, 79-81	422.32	Silty claystone	Plagioclase, quartz, calcite, pyroxene, illite (chlorite)
24R-1, 32-34	425.92	Clayey siltstone/claystone	Plagioclase, quartz, calcite (chlorite, illite, pyrite)
25R-1, 16-18	435.36	Clayey siltstone/claystone	Plagioclase, calcite, quartz, pyroxene (illite, chlorite, smectite?, pyrite)
25R-6, 111-113	443.02	Silty claystone/clayey siltstone	Plagioclase, illite, quartz, calcite (pyroxene, amphibole)
26R-1, 14-16	444.94	Clayey siltstone	Plagioclase, calcite, quartz (illite, amphibole, pyrite)
27R-4, 68-69	459.41	Silty claystone/clayey siltstone	Plagioclase, calcite, quartz (pyroxene, illite, chlorite, amphibole, pyrite)
28R-4, 102-106	469.31	Siltstone/silty claystone	Plagioclase, quartz, illite (calcite, amphibole, pyroxene, pyrite)
29R-4, 80-81	478.77	Clayey siltstone	Quartz, plagioclase, calcite (chlorite, pyroxene, illite)
30R-3, 85-86	486.98	Clayey siltstone	Plagioclase, calcite, quartz (illite, chlorite, pyrite)
31R-CC, 10-11	501.52	Silty claystone	Plagioclase, quartz, calcite (pyroxene, amphibole, chlorite, illite, pyrite)
32R-3, 36-39	505.75	Silty claystone	Plagioclase, calcite, quartz (illite, smectite?, chlorite, pyroxene, amphibole)
33R-3, 56-60	515.41	Silty claystone	Plagioclase, quartz, calcite (illite, chlorite)
34R-1, 4-5	521.84	Siltstone	Plagioclase, quartz, calcite, pyroxene (smectite?, illite, chlorite)
34R-2, 93-95	524.07	Claystone	Plagioclase, quartz, calcite (chlorite, smectite?)
34R-3, 36-38	524.87	Claystone	Plagioclase, quartz, calcite (pyroxene, chlorite, smectite?, pyrite)
35R-1, 12-13	531.52	Silty claystone	Plagioclase, quartz, calcite (pyroxene, chlorite, smectite?, pyrite)
36R-4, 25-27	545.20	Siltstone-claystone	Quartz, plagioclase, calcite, pyroxene (pyrite, chlorite, illite, smectite?, amphibole)
36R-7, 5-7	549.08	Silty claystone	Plagioclase, calcite, quartz (chlorite, illite, amphibole, pyrite)
37R-5, 2-3	556.32	Siltstone	Calcite, plagioclase, quartz (amphibole, chlorite, smectite?)
38R-1, 49-51	560.79	Silty claystone-clayey siltstone	Calcite, plagioclase, quartz (illite, pyrite, amphibole, chlorite, smectite?)
38R-5, 16-19	566.12	Silty claystone-clayey siltstone	Calcite, quartz, plagioclase (chlorite, smectite?, illite)
39R-1, 38-39	570.38	Silty claystone-clayey siltstone	Quartz, plagioclase, calcite (chlorite, smectite?, illite)
40R-3, 42-43	582.64	Silty claystone-clayey siltstone	Calcite (quartz, plagioclase)
41R-5, 35-36	595.16	Siltstone-clayey siltstone	Plagioclase, quartz, illite, calcite (chlorite)
42R-3, 45-46	601.76	Clayey siltstone	Calcite, plagioclase, quartz (illite, amphibole, chlorite, pyrite)
43R-4, 44-45 cm	612.85	Silty claystone	Calcite, plagioclase, quartz (chlorite, illite)
44R-3, 21-23	621.06	Silty claystone	Calcite, plagioclase, quartz, amphibole (pyrite)
45R-2, 70-71	629.65	Claystone	Calcite, plagioclase, quartz (illite, chlorite, amphibole, pyrite)
46R-4, 83.5-85.5	642.37	Clayey siltstone	Calcite, plagioclase, quartz (illite, chlorite, amphibole)
47R-2, 83-85	649.11	Silty claystone	Plagioclase, calcite, quartz (pyroxene, chlorite, smectite?, illite, pyrite)
48R-1, 85-87	657.25	Silty claystone-clayey siltstone	Plagioclase, calcite, quartz (smectite?, illite, amphibole, pyrite)
49R-1, 103-105	667.03	Silty claystone-clayey siltstone	Calcite, quartz, plagioclase (illite)
50R-1, 75-76	676.35	Silty claystone-claystone	Plagioclase, quartz, pyroxene, calcite, illite
51R-3, 33-34	687.82	Sandstone-claystone	Calcite, plagioclase, quartz (illite, pyrite, amphibole)
53R-1, 123-124	705.93	Sandy siltstone	Plagioclase, calcite, quartz (amphibole, illite, pyrite)
55R-2, 12-14	725.09	Sandy siltstone	Calcite, plagioclase, quartz (illite, pyrite)
56R-3, 42-43	737.19	Silty sandstone	Calcite, plagioclase, quartz (pyrite, illite, amphibole)
57R-5, 64-65	749.40	Silty claystone	Calcite, plagioclase, quartz (amphibole, illite, pyrite)
58R-7, 22-24	761.53	Silty claystone	Calcite, plagioclase, quartz (illite, pyrite, amphibole, chlorite)
59R-3, 9-10	765.43	Silty claystone	Calcite, plagioclase, quartz, illite (pyrite, amphibole, chlorite)
59R-4, 24-25	767.04	Volcaniclastic sandstone-claystone	Quartz, plagioclase, illite, actinolite, calcite (pyrite)
60R-2, 10-12	773.76	Silty claystone-clayey siltstone	Calcite, quartz, plagioclase (illite, pyrite, smectite?)
61R-3, 28-30	784.74	Silty claystone	Calcite, quartz, plagioclase (illite, amphibole, pyrite)
62R-1, 17-19	791.67	Silty claystone-clayey siltstone	Calcite, quartz, plagioclase, illite (amphibole, pyrite)
63R-3, 8-9	803.72	Sandstone-claystone	Calcite, plagioclase, quartz (pyrite, illite)
64R-1, 75.5-77	811.46	Silty claystone	Plagioclase, calcite, quartz, illite (pyrite, amphibole)
65R-2, 29-31	822.02	Silty claystone	Calcite, plagioclase, quartz, illite (amphibole, pyrite)
66R-3, 86-88	833.60	Silty claystone	Plagioclase, quartz, calcite (illite, pyrite, amphibole)
67R-CC, 41-42	845.91	Calcareous volcaniclastic sandstone	Calcite, plagioclase, quartz, illite (amphibole)
68R-1, 87-88	850.17	Volcaniclastic sandstone	Calcite, plagioclase, quartz, amphibole, illite
69R-1, 27-28	859.27	Mixed sandstone (calcareous)	Calcite (K-feldspar, plagioclase)
70R-1, 14-15	868.84	Calcareous sandstone	Calcite (quartz, plagioclase)
71R-1, 13-14	878.53	Polymictic breccia	Plagioclase (quartz, K-feldspar, smectite?)

Note: See "Lithostratigraphy" in "Site 1118" chapter for discussion.