Initial Reports Volume 192
Chapter 7, Table T5. Whole-rock compositions of basalt samples, Hole 1187A.

Notes: * = highly altered basalt, excluded from Figures F20, F21, F22, and F23. Fe2O3T = total Fe expressed as Fe2O3. Mg# = atomic Mg/(Mg + Fe2+), and, with CIPW norms, it was calculated assuming that 12% of total iron is Fe3+, which is equivalent to Fe2O3/(Fe2O3 + FeO) = 0.13, or Fe2O3/FeO = 0.15. LOI = percent weight loss on ignition at 1100 degrees C.  All analyses were conducted on ignited samples.

Core, section:	3R-3	4R-2	6R-6	7R-6	9R-4	10R-7	12R-5
Piece:	3B	13B	2C	2	2C	1B	2A
Interval (cm):	68-70	122-124	105-107	66-70*	56-58	30-32	90-93
Unit/Subunit:	3B	3B	3B	4	5	6	6
Depth (mbsf):	378.12	386.91	410.58	419.96	436.66	449.89	467.45
							
Major element (wt%)							
SiO2	49.00	49.00	49.50	48.10	49.00	49.80	49.80
TiO2	0.72	0.74	0.72	0.78	0.73	0.72	0.75
Al2O3	15.30	15.30	14.90	16.50	15.20	15.30	15.80
Fe2O3T	10.70	10.80	10.80	11.90	11.10	10.40	10.10
MnO	0.20	0.19	0.18	0.19	0.19	0.17	0.17
MgO	8.79	8.70	9.15	6.87	9.39	8.85	8.78
CaO	12.40	12.60	12.30	13.20	12.50	12.20	12.70
Na2O	1.82	1.83	1.74	2.05	1.78	1.83	1.85
K2O	0.22	0.32	0.04	0.97	0.11	0.03	0.07
P2O5	0.04	0.03	0.04	0.06	0.04	0.04	0.04
Total	99.19	99.51	99.37	100.62	100.04	99.34	100.06
Mg#	0.65	0.65	0.66	0.57	0.66	0.66	0.66
LOI	1.79	2.46	0.86	3.48	1.03	1.20	0.98
							
CIPW norms							
Q	0.0	0.0	0.0	0.0	0.0	0.0	0.0
Or	1.3	1.9	0.3	5.8	0.6	0.2	0.4
Ab	15.6	15.7	15.0	16.0	15.1	15.7	15.8
An	33.5	33.0	33.3	33.1	33.4	34.1	34.8
Ne	0.0	0.0	0.0	0.8	0.0	0.0	0.0
Di	23.4	24.5	22.9	26.4	23.5	22.0	23.1
Hy	17.0	14.9	22.6	0.0	16.2	23.4	19.3
Ol	5.7	6.6	2.5	14.2	7.4	1.2	3.2
Il	1.4	1.4	1.4	1.5	1.4	1.4	1.4
Mt	1.9	1.9	1.9	2.1	2.0	1.8	1.8
Ap	0.1	0.1	0.1	0.1	0.1	0.1	0.1
							
Trace element (ppm)							
Ni	176	185	196	157	171	195	184
Cr	490	492	501	506	467	464	476
V	243	244	242	289	246	235	245
Zr	36	41	39	41	40	38	38
Sc	44	43	43	46	43	43	43
Y	17	19	17	19	18	18	19
Sr	91	89	84	121	89	85	95
Ba	6	5	7	18	6	5	6