Table 3.

Table T3. Composition of minerals determined by X-ray diffraction in whole-rock samples, Site 1108.

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

180-1108B-

1R-2, 18-19

1.18

Clay-bearing nannofossil ooze

Calcite, quartz, plagioclase, chlorite (illite)

8R-1, 25-26

62.95

Silty sand

Plagioclase, quartz (amphibole, chlorite, smectite?)

9R-1, 104-105

73.34

Sandstone

Calcite, plagioclase, quartz (chlorite, smectite?)

10R-1, 122-127

83.12

Mixed lithic sand

Plagioclase, quartz, amphibole (illite, chlorite)

14R-1, 62.5-63.5

120.82

Sandstone

Plagioclase, quartz, calcite, amphibole (chlorite, illite)

14R-2, 33-34

121.69

Sand

Quartz (plagioclase, calcite, chlorite, smectite?)

16R-2, 53-54

141.43

Silty clay

Plagioclase, quartz, calcite, chlorite, smectite? (illite, amphibole)

17R-2, 70-73

150.77

Calcareous clayey siltstone

Calcite (quartz, plagioclase)

19R-3, 47-48

170.27

Foraminifer-rich clayey siltstone

Calcite, plagioclase, quartz (aragonite, chlorite, illite, smectite?)

20R-1, 138-141

179.38

Silty claystone

Quartz, plagioclase (augite?, amphibole, chlorite, illite)

22R-4, 59.5-60.5

202.29

Sandstone

Plagioclase (quartz, calcite, chlorite, illite, smectite?)

23R-3, 125-125.5

211.05

Siltstone

Plagioclase (quartz, calcite, chlorite, illite, smectite?)

24R-3, 99-100

219.83

Sandstone

Quartz, plagioclase, chlorite (calcite, illite, amphibole)

25R-2, 18.5-19.5

227.68

Siltstone

Plagioclase, quartz, (calcite, chlorite, illite)

26R-1, 42-43

236.02

Siltstone

Quartz, plagioclase (calcite, chlorite, smectite?, amphibole)

31R-1, 40.5-41.5

283.40

Silty claystone

Plagioclase, chlorite, illite (quartz, amphibole)

32R-3, 80-81

295.85

Siltstone

Plagioclase, quartz (calcite, chlorite, smectite?, illite, amphibole)

33R-3, 81-82

305.91

Sandstone

Quartz, plagioclase, (calcite, chlorite, smectite?, illite)

34R-3, 82-83

315.65

Sandstone

Plagioclase, quartz (calcite, chlorite, smectite?, amphibole)

35R-2, 31-32

323.41

Siltstone

Plagioclase (quartz, calcite, smectite?, illite)

36R-4, 20-22

335.09

Claystone

Plagioclase (quartz, smectite?)

38R-1, 71-73.5

351.21

Claystone

Plagioclase, quartz (chlorite, smectite?, illite)

39R-2, 66-69

361.92

Silty Claystone

Plagioclase (quartz, illite, smectite?)

40R-1, 18-20

369.98

Siltstone

Plagioclase, quartz (clinoptilolite, chlorite, smectite?, illite)

42R-1, 128-129

390.28

Silty claystone

Quartz, plagioclase (chlorite, smectite?, calcite)

43R-1, 86-87

399.46

Sandy siltstone

Quartz, plagioclase (chlorite, smectite?, calcite)

44R-1, 112-112.5

409.32

Silty sandstone

Quartz, plagioclase, calcite (chlorite, smectite?)

45R-1, 81-82

418.61

Sandstone

Quartz, plagioclase (chlorite, smectite?, calcite)

46R-1, 107-107.5

428.57

Silty sandstone

Quartz, plagioclase, calcite (chlorite, illite, smectite?)

48R-2, 70-71

448.00

Silty sandstone

Quartz, plagioclase (calcite, chlorite, smectite?)

50R-1, 50-51

466.40

Sandy siltstone

Calcite, quartz, plagioclase (chlorite)

51R-1, 53-55

476.03

Sandy siltstone

Quartz, calcite, plagioclase (chlorite)

Core, section, interval (cm)	Depth (mbsf)	Description	XRD identification: major (minor) minerals
180-1108B-
1R-2, 18-19	1.18	Clay-bearing nannofossil ooze	Calcite, quartz, plagioclase, chlorite (illite)
8R-1, 25-26	62.95	Silty sand	Plagioclase, quartz (amphibole, chlorite, smectite?)
9R-1, 104-105	73.34	Sandstone	Calcite, plagioclase, quartz (chlorite, smectite?)
10R-1, 122-127	83.12	Mixed lithic sand	Plagioclase, quartz, amphibole (illite, chlorite)
14R-1, 62.5-63.5	120.82	Sandstone	Plagioclase, quartz, calcite, amphibole (chlorite, illite)
14R-2, 33-34	121.69	Sand	Quartz (plagioclase, calcite, chlorite, smectite?)
16R-2, 53-54	141.43	Silty clay	Plagioclase, quartz, calcite, chlorite, smectite? (illite, amphibole)
17R-2, 70-73	150.77	Calcareous clayey siltstone	Calcite (quartz, plagioclase)
19R-3, 47-48	170.27	Foraminifer-rich clayey siltstone	Calcite, plagioclase, quartz (aragonite, chlorite, illite, smectite?)
20R-1, 138-141	179.38	Silty claystone	Quartz, plagioclase (augite?, amphibole, chlorite, illite)
22R-4, 59.5-60.5	202.29	Sandstone	Plagioclase (quartz, calcite, chlorite, illite, smectite?)
23R-3, 125-125.5	211.05	Siltstone	Plagioclase (quartz, calcite, chlorite, illite, smectite?)
24R-3, 99-100	219.83	Sandstone	Quartz, plagioclase, chlorite (calcite, illite, amphibole)
25R-2, 18.5-19.5	227.68	Siltstone	Plagioclase, quartz, (calcite, chlorite, illite)
26R-1, 42-43	236.02	Siltstone	Quartz, plagioclase (calcite, chlorite, smectite?, amphibole)
31R-1, 40.5-41.5	283.40	Silty claystone	Plagioclase, chlorite, illite (quartz, amphibole)
32R-3, 80-81	295.85	Siltstone	Plagioclase, quartz (calcite, chlorite, smectite?, illite, amphibole)
33R-3, 81-82	305.91	Sandstone	Quartz, plagioclase, (calcite, chlorite, smectite?, illite)
34R-3, 82-83	315.65	Sandstone	Plagioclase, quartz (calcite, chlorite, smectite?, amphibole)
35R-2, 31-32	323.41	Siltstone	Plagioclase (quartz, calcite, smectite?, illite)
36R-4, 20-22	335.09	Claystone	Plagioclase (quartz, smectite?)
38R-1, 71-73.5	351.21	Claystone	Plagioclase, quartz (chlorite, smectite?, illite)
39R-2, 66-69	361.92	Silty Claystone	Plagioclase (quartz, illite, smectite?)
40R-1, 18-20	369.98	Siltstone	Plagioclase, quartz (clinoptilolite, chlorite, smectite?, illite)
42R-1, 128-129	390.28	Silty claystone	Quartz, plagioclase (chlorite, smectite?, calcite)
43R-1, 86-87	399.46	Sandy siltstone	Quartz, plagioclase (chlorite, smectite?, calcite)
44R-1, 112-112.5	409.32	Silty sandstone	Quartz, plagioclase, calcite (chlorite, smectite?)
45R-1, 81-82	418.61	Sandstone	Quartz, plagioclase (chlorite, smectite?, calcite)
46R-1, 107-107.5	428.57	Silty sandstone	Quartz, plagioclase, calcite (chlorite, illite, smectite?)
48R-2, 70-71	448.00	Silty sandstone	Quartz, plagioclase (calcite, chlorite, smectite?)
50R-1, 50-51	466.40	Sandy siltstone	Calcite, quartz, plagioclase (chlorite)
51R-1, 53-55	476.03	Sandy siltstone	Quartz, calcite, plagioclase (chlorite)