Table T11. Major element oxides with selected trace elements, Hole 1188A.

Table T11. Major element oxides with selected trace elements, Hole 1188A.

Core, section: 193-1188A-:

2R-1

5R-1*

7R-1

7R-1*

7R-2

8R-1

8R-1

9R-1

9R-2*

11R-1

12R-2

14R-1

14R-1

14R-1

14R-1*

16R-1

16R-1

Interval (cm):

9-12

42-45

62-64

62-64

39-41

66-69

124-127

67-70

79-81

34-38

48-51

47-51

105-108

105-108

105-108

95-98

95-98

Curated depth (mbsf):

9.69

34.02

48.82

48.82

50.09

58.56

59.14

68.27

69.89

87.25

98.56

116.47

117.05

117.05

117.05

136.35

136.35

Rock type:

FD

AD

AD

AD

BR

BR

BR

BR

BR

AD

BR

BR

BR

BR^†

BR

AD

AD^†

Alteration style:

F

Bl

Sil/Bl

Sil/Bl

Sil/GSC

GSC

GSC

Bl

Bl

Sil/Bl

Sil/GSC

Bl/Sil

Bl/Sil

Bl/Sil

Bl/Sil

Sil

Sil

Ignited rock powder composition*:

Major element oxide (wt%):

SiO₂ 69.24 70.51 67.68 67.55 67.31 69.81 66.96 74.98 70.50 68.99 69.11 71.82 75.17 75.75 77.22 72.18 71.71

TiO₂ 0.45 0.52 0.57 0.53 0.54 0.54 0.54 0.61 0.51 0.56 0.56 0.59 0.55 0.58 0.69 0.53 0.55

Al₂O₃ 14.19 14.89 14.56 14.87 14.15 14.28 14.24 14.93 14.75 14.50 14.37 15.22 14.40 14.63 15.71 14.41 14.40

Fe₂O₃ 4.61 5.44 5.50 5.44 5.30 6.61 5.84 5.46 5.97 5.76 5.65 3.72 0.40 0.31 0.40 5.17 4.82

MnO 0.11 0.16 0.03 0.04 0.06 0.15 0.05 0.01 0.03 0.02 0.08 0.00 0.00 0.01 0.01 0.03 0.04

MgO 0.68 2.37 3.98 4.17 3.79 4.76 3.65 0.17 1.90 2.82 1.58 0.28 0.23 0.24 0.29 2.23 2.31

CaO 2.65 2.14 3.27 3.04 2.92 1.21 2.34 0.69 3.45 2.94 2.11 2.17 3.40 3.27 3.37 2.67 2.52

Na₂O 4.90 2.74 1.53 1.56 0.67 0.74 0.62 0.56 0.84 1.84 5.27 0.98 1.01 0.99 1.01 0.91 0.88

K₂O 1.83 2.13 0.65 0.75 1.42 1.05 1.80 BD 2.53 0.57 0.22 0.71 1.16 1.39 1.42 2.04 2.08

P₂O₅ 0.08 0.17 0.12 0.11 0.11 0.12 0.17 0.07 0.18 0.16 0.15 0.11 0.14 0.14 ND 0.10 0.08

Total (wt%): 98.75 101.08 97.89 98.07 96.27 99.28 96.20 97.47 100.67 98.17 99.10 95.61 96.46 97.31 100.10 100.27 99.37

LOI (wt%): 1.42 8.39 7.07 7.76 7.21 6.09 7.58 6.44 8.77 6.39 1.74 5.85 4.69 5.41 7.31 5.41 2.95

Trace element (ppm):

Zr 130 135 126 140 116 118 123 136 132 124 123 150 124 138 142 141 151

Y 35 35 36 30 32 33 37 25 40 35 38 39 22 23 22 35 38

Sr 247 260 278 279 208 87 141 113 263 289 255 204 218 226 236 234 235

Zn 73 64 64 39 51 207 40 76 87 20 47 BD BD 8 BD 9 45

Cu 15 51 44 32 24 9 15 118 31 89 131 12 3 4 5 4 4

Ba 405 389 301 293 241 280 319 356 330 269 258 364 545 483 522 752 688

Whole-rock composition

Major element oxide (wt%):

SiO₂ 68.26 64.59 62.90 62.31 62.46 65.56 61.88 70.15 64.32 64.58 67.91 67.62 71.64 71.65 71.57 68.27 69.59

TiO₂ 0.44 0.47 0.53 0.49 0.50 0.51 0.50 0.57 0.47 0.52 0.55 0.56 0.52 0.55 0.64 0.50 0.53

Al₂O₃ 13.99 13.64 13.53 13.72 13.13 13.41 13.16 13.97 13.46 13.58 14.12 14.33 13.72 13.84 14.56 13.63 13.98

Fe₂O₃ 4.55 4.98 5.11 5.02 4.92 6.21 5.40 5.11 5.45 5.39 5.55 3.50 0.39 0.29 0.37 4.89 4.68

MnO 0.11 0.15 0.03 0.04 0.06 0.14 0.04 0.01 0.03 0.02 0.08 0.00 0.00 0.01 0.00 0.03 0.04

MgO 0.67 2.17 3.70 3.85 3.52 4.47 3.37 0.16 1.74 2.64 1.55 0.26 0.22 0.22 0.26 2.11 2.24

CaO 2.62 1.96 3.04 2.81 2.71 1.14 2.16 0.64 3.15 2.75 2.07 2.04 3.24 3.09 3.13 2.53 2.44

Na₂O 4.83 2.51 1.42 1.44 0.62 0.69 0.57 0.52 0.77 1.73 5.18 0.93 0.96 0.94 0.93 0.86 0.85

K₂O 1.81 1.95 0.61 0.69 1.32 0.99 1.67 BD 2.31 0.54 0.21 0.67 1.11 1.31 1.32 1.93 2.02

P₂O₅ 0.08 0.16 0.11 0.10 0.10 0.12 0.16 0.06 0.16 0.15 0.15 0.10 0.13 0.14 0.00 0.10 0.07

Total S (%): 0.02 0.65 4.66 4.66 3.78 2.53 5.00 4.33 5.14 5.47 0.63 3.95 1.73 1.73 1.73 3.42 3.42

Total H₂O⁺ (wt%): 1.21 7.93 4.75 4.75 5.09 5.42 4.90 3.63 3.34 3.49 1.54 3.08 2.53 2.53 2.53 3.24 3.24

S_{water-soluble
sulfate}(wt%): 0.04 ND 5.15 ND 4.24 1.20 4.93 4.50 ND 5.68 0.14 0.92 2.08 ND ND 3.42 ND

Core, section: 193-1188A-:

16R-2

16R-2

17R-1

17R-1

19R-1

20R-1

20R-1

21R-1

21R-1

Interval (cm):

12-15

40-43

90-93

90-93

73-76

74-77

92-95

20-24

20-24

Curated depth (mbsf):

136.98

137.26

146.00

146.00

165.03

174.64

174.82

183.82

183.30

Rock type:

BR

AD

AD

AD^†

AD

AD

GD

GD

GD^†

Alteration style:

GSC

GSC

Sil

Sil

Sil

GSC

Sil

Sil/GSC

Sil/GSC

Ignited rock powder composition*:

Major element oxide (wt%):

SiO₂ 61.67 67.19 73.25 72.04 67.55 52.34 70.05 60.53 61.77

TiO₂ 0.76 0.64 0.57 0.57 0.56 0.65 0.53 0.53 0.69

Al₂O₃ 14.74 14.43 14.40 14.38 14.42 12.05 14.33 13.86 14.48

Fe₂O₃ 9.14 5.79 4.97 4.64 4.90 13.71 5.46 8.77 9.69

MnO 0.13 0.09 0.04 0.05 0.06 0.07 0.03 0.06 0.07

MgO 4.19 2.39 2.61 2.68 1.21 4.68 1.23 5.36 6.38

CaO 4.35 4.13 1.13 1.10 2.65 2.31 2.52 2.89 3.07

Na₂O 4.70 4.13 0.68 0.64 4.91 3.12 4.83 0.07 3.25

K₂O 0.06 0.33 1.84 1.98 0.29 0.11 0.36 BD BD

P₂O₅ 0.36 0.19 0.12 0.09 0.11 0.39 0.09 0.31 0.30

Total (wt%): 100.09 99.29 99.60 98.19 96.65 89.43 99.43 92.39 99.71

LOI (wt%): 1.93 1.93 4.57 4.57 2.22 5.76 4.04 3.49 3.49

Trace element (ppm):

Zr 87 112 130 138 131 75 132 81 85

Y 28 31 41 46 38 20 39 26 27

Sr 434 406 117 124 327 265 320 269 307

Zn 158 94 30 23 31 15 9 73 71

Cu 47 22 13 8 303 95 386 7 14

Ba 177 494 713 637 372 97 337 93 112

Whole-rock composition

Major element oxide (wt%):

SiO₂ 60.48 65.90 69.90 68.75 66.05 49.33 67.22 58.42 59.62

TiO₂ 0.74 0.62 0.54 0.55 0.55 0.61 0.51 0.51 0.67

Al₂O₃ 14.46 14.15 13.74 13.72 14.10 11.36 13.75 13.37 13.97

Fe₂O₃ 8.97 5.67 4.75 4.43 4.79 12.92 5.24 8.46 9.36

MnO 0.12 0.09 0.04 0.05 0.06 0.06 0.02 0.06 0.07

MgO 4.11 2.34 2.49 2.56 1.18 4.41 1.18 5.18 6.16

CaO 4.26 4.05 1.08 1.05 2.59 2.17 2.42 2.79 2.97

Na₂O 4.61 4.05 0.65 0.61 4.80 2.94 4.64 0.07 3.14

K₂O 0.06 0.32 1.76 1.89 0.28 0.11 0.34 BD BD

P₂O₅ 0.35 0.19 0.11 0.09 0.10 0.37 0.08 0.30 0.29

Total S (%): 3.63 2.16 0.99 0.99 0.49 5.98 2.79 0.39 0.39

Total H₂O⁺ (wt%): 0.87 0.68 3.36 3.36 1.44 2.33 2.17 2.18 2.18

S_{water-soluble
sulfate}(wt%): 3.40 ND 1.09 ND ND 6.03 2.82 0.43 ND

Core, section: 193-1188A-:	2R-1	5R-1*	7R-1	7R-1*	7R-2	8R-1	8R-1	9R-1	9R-2*	11R-1	12R-2	14R-1	14R-1	14R-1	14R-1*	16R-1	16R-1
Interval (cm):	9-12	42-45	62-64	62-64	39-41	66-69	124-127	67-70	79-81	34-38	48-51	47-51	105-108	105-108	105-108	95-98	95-98
Curated depth (mbsf):	9.69	34.02	48.82	48.82	50.09	58.56	59.14	68.27	69.89	87.25	98.56	116.47	117.05	117.05	117.05	136.35	136.35
Rock type:	FD	AD	AD	AD	BR	BR	BR	BR	BR	AD	BR	BR	BR	BR^†	BR	AD	AD^†
Alteration style:	F	Bl	Sil/Bl	Sil/Bl	Sil/GSC	GSC	GSC	Bl	Bl	Sil/Bl	Sil/GSC	Bl/Sil	Bl/Sil	Bl/Sil	Bl/Sil	Sil	Sil
Ignited rock powder composition*:
Major element oxide (wt%):
SiO₂	69.24	70.51	67.68	67.55	67.31	69.81	66.96	74.98	70.50	68.99	69.11	71.82	75.17	75.75	77.22	72.18	71.71
TiO₂	0.45	0.52	0.57	0.53	0.54	0.54	0.54	0.61	0.51	0.56	0.56	0.59	0.55	0.58	0.69	0.53	0.55
Al₂O₃	14.19	14.89	14.56	14.87	14.15	14.28	14.24	14.93	14.75	14.50	14.37	15.22	14.40	14.63	15.71	14.41	14.40
Fe₂O₃	4.61	5.44	5.50	5.44	5.30	6.61	5.84	5.46	5.97	5.76	5.65	3.72	0.40	0.31	0.40	5.17	4.82
MnO	0.11	0.16	0.03	0.04	0.06	0.15	0.05	0.01	0.03	0.02	0.08	0.00	0.00	0.01	0.01	0.03	0.04
MgO	0.68	2.37	3.98	4.17	3.79	4.76	3.65	0.17	1.90	2.82	1.58	0.28	0.23	0.24	0.29	2.23	2.31
CaO	2.65	2.14	3.27	3.04	2.92	1.21	2.34	0.69	3.45	2.94	2.11	2.17	3.40	3.27	3.37	2.67	2.52
Na₂O	4.90	2.74	1.53	1.56	0.67	0.74	0.62	0.56	0.84	1.84	5.27	0.98	1.01	0.99	1.01	0.91	0.88
K₂O	1.83	2.13	0.65	0.75	1.42	1.05	1.80	BD	2.53	0.57	0.22	0.71	1.16	1.39	1.42	2.04	2.08
P₂O₅	0.08	0.17	0.12	0.11	0.11	0.12	0.17	0.07	0.18	0.16	0.15	0.11	0.14	0.14	ND	0.10	0.08
Total (wt%):	98.75	101.08	97.89	98.07	96.27	99.28	96.20	97.47	100.67	98.17	99.10	95.61	96.46	97.31	100.10	100.27	99.37
LOI (wt%):	1.42	8.39	7.07	7.76	7.21	6.09	7.58	6.44	8.77	6.39	1.74	5.85	4.69	5.41	7.31	5.41	2.95
Trace element (ppm):
Zr	130	135	126	140	116	118	123	136	132	124	123	150	124	138	142	141	151
Y	35	35	36	30	32	33	37	25	40	35	38	39	22	23	22	35	38
Sr	247	260	278	279	208	87	141	113	263	289	255	204	218	226	236	234	235
Zn	73	64	64	39	51	207	40	76	87	20	47	BD	BD	8	BD	9	45
Cu	15	51	44	32	24	9	15	118	31	89	131	12	3	4	5	4	4
Ba	405	389	301	293	241	280	319	356	330	269	258	364	545	483	522	752	688
Whole-rock composition
Major element oxide (wt%):
SiO₂	68.26	64.59	62.90	62.31	62.46	65.56	61.88	70.15	64.32	64.58	67.91	67.62	71.64	71.65	71.57	68.27	69.59
TiO₂	0.44	0.47	0.53	0.49	0.50	0.51	0.50	0.57	0.47	0.52	0.55	0.56	0.52	0.55	0.64	0.50	0.53
Al₂O₃	13.99	13.64	13.53	13.72	13.13	13.41	13.16	13.97	13.46	13.58	14.12	14.33	13.72	13.84	14.56	13.63	13.98
Fe₂O₃	4.55	4.98	5.11	5.02	4.92	6.21	5.40	5.11	5.45	5.39	5.55	3.50	0.39	0.29	0.37	4.89	4.68
MnO	0.11	0.15	0.03	0.04	0.06	0.14	0.04	0.01	0.03	0.02	0.08	0.00	0.00	0.01	0.00	0.03	0.04
MgO	0.67	2.17	3.70	3.85	3.52	4.47	3.37	0.16	1.74	2.64	1.55	0.26	0.22	0.22	0.26	2.11	2.24
CaO	2.62	1.96	3.04	2.81	2.71	1.14	2.16	0.64	3.15	2.75	2.07	2.04	3.24	3.09	3.13	2.53	2.44
Na₂O	4.83	2.51	1.42	1.44	0.62	0.69	0.57	0.52	0.77	1.73	5.18	0.93	0.96	0.94	0.93	0.86	0.85
K₂O	1.81	1.95	0.61	0.69	1.32	0.99	1.67	BD	2.31	0.54	0.21	0.67	1.11	1.31	1.32	1.93	2.02
P₂O₅	0.08	0.16	0.11	0.10	0.10	0.12	0.16	0.06	0.16	0.15	0.15	0.10	0.13	0.14	0.00	0.10	0.07
Total S (%):	0.02	0.65	4.66	4.66	3.78	2.53	5.00	4.33	5.14	5.47	0.63	3.95	1.73	1.73	1.73	3.42	3.42
Total H₂O⁺ (wt%):	1.21	7.93	4.75	4.75	5.09	5.42	4.90	3.63	3.34	3.49	1.54	3.08	2.53	2.53	2.53	3.24	3.24
S_{water-soluble sulfate}(wt%):	0.04	ND	5.15	ND	4.24	1.20	4.93	4.50	ND	5.68	0.14	0.92	2.08	ND	ND	3.42	ND

Core, section: 193-1188A-:	16R-2	16R-2	17R-1	17R-1	19R-1	20R-1	20R-1	21R-1	21R-1
Interval (cm):	12-15	40-43	90-93	90-93	73-76	74-77	92-95	20-24	20-24
Curated depth (mbsf):	136.98	137.26	146.00	146.00	165.03	174.64	174.82	183.82	183.30
Rock type:	BR	AD	AD	AD^†	AD	AD	GD	GD	GD^†
Alteration style:	GSC	GSC	Sil	Sil	Sil	GSC	Sil	Sil/GSC	Sil/GSC
Ignited rock powder composition*:
Major element oxide (wt%):
SiO₂	61.67	67.19	73.25	72.04	67.55	52.34	70.05	60.53	61.77
TiO₂	0.76	0.64	0.57	0.57	0.56	0.65	0.53	0.53	0.69
Al₂O₃	14.74	14.43	14.40	14.38	14.42	12.05	14.33	13.86	14.48
Fe₂O₃	9.14	5.79	4.97	4.64	4.90	13.71	5.46	8.77	9.69
MnO	0.13	0.09	0.04	0.05	0.06	0.07	0.03	0.06	0.07
MgO	4.19	2.39	2.61	2.68	1.21	4.68	1.23	5.36	6.38
CaO	4.35	4.13	1.13	1.10	2.65	2.31	2.52	2.89	3.07
Na₂O	4.70	4.13	0.68	0.64	4.91	3.12	4.83	0.07	3.25
K₂O	0.06	0.33	1.84	1.98	0.29	0.11	0.36	BD	BD
P₂O₅	0.36	0.19	0.12	0.09	0.11	0.39	0.09	0.31	0.30
Total (wt%):	100.09	99.29	99.60	98.19	96.65	89.43	99.43	92.39	99.71
LOI (wt%):	1.93	1.93	4.57	4.57	2.22	5.76	4.04	3.49	3.49
Trace element (ppm):
Zr	87	112	130	138	131	75	132	81	85
Y	28	31	41	46	38	20	39	26	27
Sr	434	406	117	124	327	265	320	269	307
Zn	158	94	30	23	31	15	9	73	71
Cu	47	22	13	8	303	95	386	7	14
Ba	177	494	713	637	372	97	337	93	112
Whole-rock composition
Major element oxide (wt%):
SiO₂	60.48	65.90	69.90	68.75	66.05	49.33	67.22	58.42	59.62
TiO₂	0.74	0.62	0.54	0.55	0.55	0.61	0.51	0.51	0.67
Al₂O₃	14.46	14.15	13.74	13.72	14.10	11.36	13.75	13.37	13.97
Fe₂O₃	8.97	5.67	4.75	4.43	4.79	12.92	5.24	8.46	9.36
MnO	0.12	0.09	0.04	0.05	0.06	0.06	0.02	0.06	0.07
MgO	4.11	2.34	2.49	2.56	1.18	4.41	1.18	5.18	6.16
CaO	4.26	4.05	1.08	1.05	2.59	2.17	2.42	2.79	2.97
Na₂O	4.61	4.05	0.65	0.61	4.80	2.94	4.64	0.07	3.14
K₂O	0.06	0.32	1.76	1.89	0.28	0.11	0.34	BD	BD
P₂O₅	0.35	0.19	0.11	0.09	0.10	0.37	0.08	0.30	0.29
Total S (%):	3.63	2.16	0.99	0.99	0.49	5.98	2.79	0.39	0.39
Total H₂O⁺ (wt%):	0.87	0.68	3.36	3.36	1.44	2.33	2.17	2.18	2.18
S_{water-soluble sulfate}(wt%):	3.40	ND	1.09	ND	ND	6.03	2.82	0.43	ND

Notes: Upper portion of the table contains the oxide abundances in ignited powders, while the lower portion is the original rock compositions. The analyses of samples containing >1 wt% total S should be used as general compositional guides, and not as absolute values. * = samples ignited for 6 hr at 600°C followed by 4 hr at 1050°C; all other samples were roasted only for 1 hr at 1050°C; † = duplicate. Rock types: AD = altered dacite, BR = breccia, GD = green dacite, FD = fresh dacite. Alteration types: F = fresh, Bl = bleached, Sil = silicified, GSC = green silica-clay. BD = below detection, ND = not determined. Water, total sulfur, and loss on ignition (LOI) are reported in weight percent of the unignited powders for Hole 1188A.