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Table T3. Elemental compositions, carbonate contents, and results from Rock-Eval pyrolysis of organic-rich horizons from Shatsky Rise.

Core, section, interval (cm)
Elemental composition
Rock-Eval
Corg
(%)
Nitrogen (%)
Sulfur
(%)
C/N (atomic)
Carbonate
(%)
S1
(mg/g)
S2
(mg/g)
S3
(mg/g)
Tmax
(C)
HI (mg HC/
g TOC)
OI (mg CO2/
g TOC)
198-1207B-











44R-1, 60-61
 		34.74
 		1.19
 		10.56
 		25.00
 		0.01
13.99
 		147.12
 		7.64
 		401
 		423
 		21
44R-1, 76-77
 		10.40
 		0.40
 		1.92
 		22.30
 		0.00
3.24
 		54.46
 		2.69
 		403
 		523
 		25
44R-1, 103-104
 		1.70
 		0.09
 		1.30
 		16.20
 		0.00
0.49
 		7.45
 		0.94
 		417
 		438
 		55

198-1213B-











8R-1, 47-48
10.23
 		0.37
 		2.00
 		23.60
 		0.50
2.54
 		51.30
 		2.14
 		418
 		501
 		20
8R-1, 63-64
25.20
 		0.83
 		4.36
 		25.90
 		0.75
6.97
 		127.59
 		5.87
 		404
 		506
 		23
8R-1, 96-97
2.87
 		0.14
 		0.76
 		17.20
 		0.42
0.39
 		10.49
 		6.08
 		422
 		365
 		211
15R-1, 9-10
 		2.54
 		0.12
 		2.86
 		17.90
 		49.06
0.19
 		10.30
 		12.13
 		424
 		405
 		477*
19R-1, 112-113
 		3.13
 		0.18
 		5.18
 		14.90
 		60.56
0.15
 		12.62
 		13.96
 		426
 		403
 		446*

198-1214A-











23R-1, 5-7
 		1.38
 		0.08
 		0.23
 		14.80
 		0.75
ND
ND
ND
ND
ND
ND

Notes: HC = hydrocarbon, TOC = total organic carbon. S1 and S2 are peaks corresponding to free and kerogen-bound HC (respectively generated by Rock-Eval pyrolysis), S3 is the amount of CO2 released by thermal cracking of kerogen, Tmax is the peak temperature of kerogen breakdown. HI = hydrogen index, OI = oxygen index. * = values enhanced by carbonate contents. ND = not determined.

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