Table T8. Major element oxides with selected trace elements, Hole 1189B.

Table T8. Major element oxides with selected trace elements, Hole 1189B.

Core, section: 193-1189B-:

1R-1

8R-1

11R-1

11R-2

12R-2

13R-1

16R-1

16R-2

Interval (cm):

20-30

7-9

63-65

89-91

55-57

52-54

36-39

31-33

Curated depth (mbsf):

31.20

98.47

128.23

129.17

139.26

147.52

176.06

177.44

Rock type:

AD

AD

AD

AD

AD

AD

AD

AD

Alteration style:

GSC

GSC

GSC/Sil

GSC/Sil

GSC/Sil

GSC

Sil

Sil

Ignited rock powder composition*:

Major element oxide (wt%):

SiO₂ 41.99 50.54 70.59 72.00 69.51 78.07 71.56 73.23

TiO₂ 0.95 0.55 0.44 0.45 0.44 0.31 0.45 0.45

Al₂O₃ 24.76 19.71 14.11 14.20 14.06 10.40 13.88 13.56

Fe₂O₃ 15.25 14.08 4.87 4.85 4.94 3.58 4.48 4.11

MnO 0.04 0.03 0.10 0.14 0.10 0.07 0.10 0.14

MgO 7.73 3.87 1.56 1.13 1.48 1.40 1.65 1.49

CaO 0.26 0.05 1.71 1.95 1.66 0.25 1.49 1.37

Na₂O 0.42 0.48 4.03 4.56 3.76 1.45 3.98 3.21

K₂O 4.75 7.79 2.05 1.92 2.55 3.59 2.59 3.37

P₂O₅ 0.40 0.38 0.34 0.36 0.35 0.34 0.36 0.36

Total (wt%): 96.55 97.48 99.79 101.57 98.85 99.45 100.54 101.28

LOI (wt%): 4.77 9.00 1.42 0.99 0.88 2.03 1.09 1.22

Trace element (ppm):

Zr 212 200 138 139 134 113 158 157

Y 66 49 36 35 35 29 38 39

Sr 18 76 274 283 266 155 263 248

Zn 105 20 76 135 52 1416 204 152

Cu 114 13 13 23 83 681 43 315

Ba 685 8835 508 425 726 4881 646 949

Whole rock composition:

Major element oxide (wt%):

SiO₂ 39.98 45.99 69.58 71.29 68.89 76.49 70.78 72.33

TiO₂ 0.90 0.50 0.43 0.45 0.43 0.30 0.44 0.44

Al₂O₃ 23.58 17.94 13.91 14.06 13.94 10.19 13.73 13.40

Fe₂O₃ 14.52 12.82 4.80 4.81 4.90 3.51 4.43 4.06

MnO 0.04 0.03 0.10 0.14 0.10 0.07 0.10 0.14

MgO 7.37 3.52 1.54 1.12 1.47 1.37 1.63 1.47

CaO 0.25 0.04 1.68 1.93 1.65 0.24 1.47 1.35

Na₂O 0.40 0.44 3.97 4.52 3.73 1.42 3.94 3.17

K₂O 4.52 7.09 2.02 1.90 2.53 3.52 2.56 3.33

P₂O₅ 0.39 0.35 0.33 0.36 0.35 0.33 0.36 0.35

Total S (wt%): 8.23 8.95 0.16 0.01 0.02 1.00 0.10 0.03

Total H₂O⁺ (wt%): 6.03 3.23 1.12 0.64 0.98 1.34 1.23 1.12

S_{water-soluble
sulfate} (wt%): 2.33 0.05 0.02 0.02 0.02 0.00 0.00 0.04

Core, section: 193-1189B-:	1R-1	8R-1	11R-1	11R-2	12R-2	13R-1	16R-1	16R-2
Interval (cm):	20-30	7-9	63-65	89-91	55-57	52-54	36-39	31-33
Curated depth (mbsf):	31.20	98.47	128.23	129.17	139.26	147.52	176.06	177.44
Rock type:	AD	AD	AD	AD	AD	AD	AD	AD
Alteration style:	GSC	GSC	GSC/Sil	GSC/Sil	GSC/Sil	GSC	Sil	Sil
Ignited rock powder composition*:
Major element oxide (wt%):
SiO₂	41.99	50.54	70.59	72.00	69.51	78.07	71.56	73.23
TiO₂	0.95	0.55	0.44	0.45	0.44	0.31	0.45	0.45
Al₂O₃	24.76	19.71	14.11	14.20	14.06	10.40	13.88	13.56
Fe₂O₃	15.25	14.08	4.87	4.85	4.94	3.58	4.48	4.11
MnO	0.04	0.03	0.10	0.14	0.10	0.07	0.10	0.14
MgO	7.73	3.87	1.56	1.13	1.48	1.40	1.65	1.49
CaO	0.26	0.05	1.71	1.95	1.66	0.25	1.49	1.37
Na₂O	0.42	0.48	4.03	4.56	3.76	1.45	3.98	3.21
K₂O	4.75	7.79	2.05	1.92	2.55	3.59	2.59	3.37
P₂O₅	0.40	0.38	0.34	0.36	0.35	0.34	0.36	0.36
Total (wt%):	96.55	97.48	99.79	101.57	98.85	99.45	100.54	101.28
LOI (wt%):	4.77	9.00	1.42	0.99	0.88	2.03	1.09	1.22
Trace element (ppm):
Zr	212	200	138	139	134	113	158	157
Y	66	49	36	35	35	29	38	39
Sr	18	76	274	283	266	155	263	248
Zn	105	20	76	135	52	1416	204	152
Cu	114	13	13	23	83	681	43	315
Ba	685	8835	508	425	726	4881	646	949
Whole rock composition:
Major element oxide (wt%):
SiO₂	39.98	45.99	69.58	71.29	68.89	76.49	70.78	72.33
TiO₂	0.90	0.50	0.43	0.45	0.43	0.30	0.44	0.44
Al₂O₃	23.58	17.94	13.91	14.06	13.94	10.19	13.73	13.40
Fe₂O₃	14.52	12.82	4.80	4.81	4.90	3.51	4.43	4.06
MnO	0.04	0.03	0.10	0.14	0.10	0.07	0.10	0.14
MgO	7.37	3.52	1.54	1.12	1.47	1.37	1.63	1.47
CaO	0.25	0.04	1.68	1.93	1.65	0.24	1.47	1.35
Na₂O	0.40	0.44	3.97	4.52	3.73	1.42	3.94	3.17
K₂O	4.52	7.09	2.02	1.90	2.53	3.52	2.56	3.33
P₂O₅	0.39	0.35	0.33	0.36	0.35	0.33	0.36	0.35
Total S (wt%):	8.23	8.95	0.16	0.01	0.02	1.00	0.10	0.03
Total H₂O⁺ (wt%):	6.03	3.23	1.12	0.64	0.98	1.34	1.23	1.12
S_{water-soluble sulfate} (wt%):	2.33	0.05	0.02	0.02	0.02	0.00	0.00	0.04

Notes: Rock type: AD = altered dacite. Alteration type: GSC = green silica-clay, Sil = silicified. * = all samples ignited for 6 hr at 600°C and then for 4 hr at 1050°C. The upper portion of the table gives abundances in the ignited powder, whereas the lower portion contains original rock compositions. Water, total sulfur, and loss on ignition (LOI) are reported in weight percent of unignited powder. Analyses of samples containing more than 1 wt% total S should be used as general compositional guides, and not as absolute values. LOI was conducted at 1050°C for 4 hr.