Table T4. Inorganic carbon, CaCO3, and mineral components of sediments, Hole 1186A.

Table T4. Inorganic carbon, CaCO₃, and mineral components of sediments, Hole 1186A.

Core, section,
interval (cm)

Depth
(mbsf)

Unit/
Subunit

Lithology

Inorganic
carbon
(wt%)

CaCO₃(wt%)

Mineral components (by XRD)

192-1186A-

2R-1, 7 697.47 II Limestone 11.52 95.97 Calcite

3R-1, 29 707.19 II Limestone 11.61 96.72 Calcite

4R-1, 69 717.19 II Limestone 6.89 57.38 Calcite, quartz, opal

5R-1, 47 726.57 II Limestone 7.99 66.59 Calcite, quartz, opal

6R-CC, 1 735.71 II Limestone 4.26 35.49 Calcite, quartz, opal

9R-1, 102 765.62 II Limestone NA NA Calcite

10R-1, 69 774.89 II Limestone 11.57 96.39 Calcite

11R-1, 86 784.76 II Limestone 11.50 95.81 Calcite

13R-1, 28 803.38 II Limestone 10.83 90.2 Calcite, trace peak at 3.953 Å

14R-CC, 1 812.71 IIIA Chalk 11.56 96.26 Calcite

15R-CC, 2 822.32 IIIA Chalk 11.61 96.71 Calcite

16R-1, 61 832.61 IIIA Chalk 11.71 97.58 Calcite

17R-1, 53 842.23 IIIA Chalk 11.54 96.11 Calcite

19R-1, 48 861.08 IIIA Chalk 11.62 96.81 Calcite

20R-1, 24 870.44 IIIA Chalk 11.70 97.49 Calcite

21R-1, 149 881.39 IIIA Ash layer NA NA Calcite, orthoclase, glauconite

21R-2, 49 881.89 IIIA Chalk 11.64 96.97 Calcite

21R-2, 57 881.97 IIIA Chalk 11.54 96.11 Calcite

22R-1, 43 889.93 IIIA Chalk 11.14 92.83 Calcite

23R-2, 51 901.11 IIIA Chalk 11.76 97.99 NA

23R-2, 72 901.32 IIIA Chalk 11.66 97.13 Calcite

23R-2, 122 901.82 IIIA Chalk NA NA Calcite, quartz, illite

24R-1, 39 909.09 IIIA Chalk 11.58 96.49 Calcite

25R-3, 65 921.95 IIIA Chalk 11.69 97.36 Calcite

26R-1, 22 928.22 IIIA Chalk 11.60 96.6 Calcite

26R-1, 70 928.70 IIIA Chalk 11.20 93.33 NA

26R-3, 12 930.49 IIIB Claystone 2.49 20.73 Calcite, apatite, glauconite, quartz

27R-1, 37 937.97 IIIB Limestone 3.71 30.91 Calcite, quartz, opal

28R-1, 135 948.55 IIIB Limestone 10.62 88.44 Calcite, trace peak at 3.966 Å

28R-3, 4 950.24 IIIB Limestone 9.05 75.39 NA

29R-2, 130 959.60 IIIB Limestone NA NA Calcite

30R-1, 26 966.66 IIIB Limestone NA NA Calcite

30R-1, 42 966.82 IIIB Claystone NA NA Goethite, glauconite, anorthite

Core, section, interval (cm)	Depth (mbsf)	Unit/ Subunit	Lithology	Inorganic carbon (wt%)	CaCO₃(wt%)	Mineral components (by XRD)
192-1186A-
2R-1, 7	697.47	II	Limestone	11.52	95.97	Calcite
3R-1, 29	707.19	II	Limestone	11.61	96.72	Calcite
4R-1, 69	717.19	II	Limestone	6.89	57.38	Calcite, quartz, opal
5R-1, 47	726.57	II	Limestone	7.99	66.59	Calcite, quartz, opal
6R-CC, 1	735.71	II	Limestone	4.26	35.49	Calcite, quartz, opal
9R-1, 102	765.62	II	Limestone	NA	NA	Calcite
10R-1, 69	774.89	II	Limestone	11.57	96.39	Calcite
11R-1, 86	784.76	II	Limestone	11.50	95.81	Calcite
13R-1, 28	803.38	II	Limestone	10.83	90.2	Calcite, trace peak at 3.953 Å
14R-CC, 1	812.71	IIIA	Chalk	11.56	96.26	Calcite
15R-CC, 2	822.32	IIIA	Chalk	11.61	96.71	Calcite
16R-1, 61	832.61	IIIA	Chalk	11.71	97.58	Calcite
17R-1, 53	842.23	IIIA	Chalk	11.54	96.11	Calcite
19R-1, 48	861.08	IIIA	Chalk	11.62	96.81	Calcite
20R-1, 24	870.44	IIIA	Chalk	11.70	97.49	Calcite
21R-1, 149	881.39	IIIA	Ash layer	NA	NA	Calcite, orthoclase, glauconite
21R-2, 49	881.89	IIIA	Chalk	11.64	96.97	Calcite
21R-2, 57	881.97	IIIA	Chalk	11.54	96.11	Calcite
22R-1, 43	889.93	IIIA	Chalk	11.14	92.83	Calcite
23R-2, 51	901.11	IIIA	Chalk	11.76	97.99	NA
23R-2, 72	901.32	IIIA	Chalk	11.66	97.13	Calcite
23R-2, 122	901.82	IIIA	Chalk	NA	NA	Calcite, quartz, illite
24R-1, 39	909.09	IIIA	Chalk	11.58	96.49	Calcite
25R-3, 65	921.95	IIIA	Chalk	11.69	97.36	Calcite
26R-1, 22	928.22	IIIA	Chalk	11.60	96.6	Calcite
26R-1, 70	928.70	IIIA	Chalk	11.20	93.33	NA
26R-3, 12	930.49	IIIB	Claystone	2.49	20.73	Calcite, apatite, glauconite, quartz
27R-1, 37	937.97	IIIB	Limestone	3.71	30.91	Calcite, quartz, opal
28R-1, 135	948.55	IIIB	Limestone	10.62	88.44	Calcite, trace peak at 3.966 Å
28R-3, 4	950.24	IIIB	Limestone	9.05	75.39	NA
29R-2, 130	959.60	IIIB	Limestone	NA	NA	Calcite
30R-1, 26	966.66	IIIB	Limestone	NA	NA	Calcite
30R-1, 42	966.82	IIIB	Claystone	NA	NA	Goethite, glauconite, anorthite

Notes: XRD = X-ray diffraction, CC = core catcher. NA = not analyzed.