Table 9. Geochemical analyses (wt%) of basalts from Sites 1026 and 1027. 															

Hole: 	1026B 	1026B 	1026C 	1026C 	1027B 	1027B 	1027C 	1027C 	1027C 	1027C 	1027C 	1027C 	1027C 	1027C 	1027C 
Core: 	1R-1 	4R-1 	16R-1 	17R-1 	60X-CC 	61X-CC 	1R-1 	1R-2 	1R-6 	3R-2 	4R-1 	4R-2 	5R-2 	5R-4 	5R-5 
Interval (cm): 	29-33 	35-44 	40-45 	31-38 	34-39 	22-25 	38-42 	35-42 	55-62 	119-121 	131-136 	9-15	51-55 	68-71 	121-124 
Piece: 	7	7	10	8	NA 	NA 	1B 	1A 	2	NA 	20	2	2	5	11
Depth (mbsf): 	256.29	277.35	229.3	238.81	568.9	568.52	585.18	586.28	591.45	606.29	615.01	615.29	625.16	628.03	629.94
Lithology: 	A 	A 	A 	A 	A 	A 	D 	D 	D 	M 	M 	M 	M 	S 	S 
Alteration (%): 	10	16	9	17	12	9 **	20	11	8.6 ** 	4.6 ** 	5	6	9	11	4
SiO2 	51.08	51.79	51.12	51.09	51.31	51.43	51.27	50.09	50.49	50.36	50.72	50.74	50.71	51.03	50.95
TiO2 	1.85	1.69	1.64	1.62	1.42	1.48	1.39	1.32	1.36	1.76	1.65	1.65	1.08	1.12	1.09
Al2O3 	14.08	14.85	14.69	14.34	17.16	18.13	16.34	16.05	16.53	14.87	13.84	13.75	14.77	15.01	15.29
Fe2O3* 	12.26	10.48	10.93	10.16	8.46	7.54	8.75	9.03	8.58	11.41	12.06	12.02	10.39	10.24	10.59
MnO 	0.22	0.18	0.23	0.17	0.27	0.29	0.12	0.15	0.24	0.22	0.19	0.19	0.17	0.19	0.16
MgO 	7.17	7.47	7.81	8	6.23	6.26	7.08	8.89	7.29	7.25	7.38	7.47	8.43	8.42	8.18
CaO 	11.41	11.62	11.77	11.82	12.53	11.98	12.09	12.12	12.46	11.94	11.68	11.84	12.96	13.22	12.93
Na2O 	2.6	2.73	2.89	2.84	3.05	3.27	2.98	2.89	3.12	2.8	2.57	2.68	2.04	2.06	2.08
KO2 	0.27	0.31	0.3	0.17	0.07	0.11	0.17	0.15	0.18	0.15	0.08	0.07	0.21	0.05	0.17
P2O5 	0.17	0.15	0.14	0.13	0.16	0.19	0.16	0.15	0.16	0.15	0.14	0.14	0.09	0.09	0.09
Total 	101.11	101.27	101.52	100.34	100.65	100.68	100.35	100.84	100.41	100.91	100.3	100.55	100.86	101.43	101.52
LOI 	0.46	0.93	0.53	0.6	1.27	1.82	1.36	1.62	1.96	0.99	0.53	0.46	0.99	1.16	1.03
H2O 	0.96	0.9	ND 	ND 	1.27	1.29	1.55	1.16	1.61	1.03	0.83	0.95	1.11	1.26	0.75
CO2 	0.94	0.81	ND 	ND 	0.48	1.94	0.15	0.22	0.8	0.16	1.13	0.06	0.33	0.17	1.09
S 	0.01	0	ND 	ND 	0	0	0.03	0.02	0.01	0	0.03	0.06	0	0	0
Mg# 	56.29	61.06	61.14	63.42	61.84	64.63	64.07	68.43	65.17	58.31	57.38	57.75	64.12	64.41	62.96
K/Ti 	0.2	0.26	0.26	0.14	0.07	0.1	0.17	0.16	0.18	0.12	0.06	0.06	0.27	0.06	0.21
K/P 	2.97	4.01	4.22	2.5	0.9	1.1	2.05	1.92	2.17	2	1.04	0.94	4.44	1.04	3.48

"Note: Rock types: A = aphyric basalt, S = sparsely phyric basalt, M = moderately phyric basalt; and D = diabase. NA = not applicable. **  = percent of alteration was determined from an adjacent piece. Fe2O3* is the"															
"total amount of iron expressed as Fe2O3. Mg# = 100xMg/(Mg+Fe2+), where Fe2+ = 0.9 x Fe total. LOI = loss on ignition. ND = not determined."