Table T1. Downhole positions and analytical work done on selected Leg 176 samples.

Core, section, piece, interval (cm)	Depth (mbsf)	Sample ID	Rock types	Whole-rock major element data	Whole-rock trace element data	Mineral major element data	Mineral trace element data	Isotopes
176-735B-
89R-1 (Piece 4A, 46-52)	505.26	MS1-1	TrG	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
90R-2 (Piece 1A, 1-9)	509.31	MS3-2	TrG	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
90R-6 (Piece 5B, 118-122)	515.69	MS6-3	TrG	Done	Done	Ol, plag, cpx, ox, am	Cpx, plag	NA
91R-4 (Piece 6B, 80-87)	522.18	MS9-4	OG	Done	Done	Ol, plag, cpx, opx	Cpx, plag	NA
99R-2 (Piece 4G, 133-137)	568.64	MS11-5	DOxOG	Done	Done	Ol, plag, cpx, ox, am	Cpx, plag	NA
99R-4 (Piece 2A, 37-42)	570.39	MS12-6	DOxG	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
101R-1 (Piece 7, 114-121)	586.24	MS14-7	OG	Done	Done	Ol, plag, cpx, opx, am	Cpx, plag	NA
104R-1 (Piece 14, 93-98)	605.23	MS18-8	OxG	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
105R-3 (Piece 7, 107-112)	612.76	MS19-9	OxOGN	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
106R-4 (Piece 8A, 117-124)	619.26	MS20-10	OxG	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
109R-4 (Piece 1C, 57-62)	633.15	MS22-11	OxG	Done	Done	Ol, plag, cpx, opx, ox, am	Cpx, plag	NA
112R-4 (Piece 1B, 47-55)	646.64	MS23-12	DOxG	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
114R-4 (Piece 1A, 10-15)	656.81	MS24-13	OxG	Done	Done	Plag, cpx, ox, am	Cpx, plag	NA
114R-4 (Piece 3A, 83-88)	657.54	MS25-14	OxG	Done	Done	Plag, cpx, ox, am	Cpx, plag	NA
115R-1 (Piece 4, 27-34)	662.27	MS26-15	DOxGN	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
115R-2 (Piece 1A, 6-11)	663.56	MS27-16	OxOG	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
116R-6 (Piece 8, 130-135)	679.92	MS28-17	OxGN	Done	Done	Ol, plag, cpx, am	Cpx, plag	NA
131-1 (Piece 1B, 16-23)	803.66	MS41-18	OxOG	Done	Done	Plag, cpx, opx, ox, am	Cpx, plag	NA
155-3 (Piece 1C, 52-58)	1018.45	MS60-19	OGN	Done	Done	Ol, plag, cpx, ox, am	Cpx, plag	NA
172-4 (Piece 1B, 21-27)	1173.02	MS70-20	OGN	Done	Done	Ol, plag, cpx, opx, ox	Cpx, plag	NA
172-6 (Piece 1, 11-18)	1175.65	MS71-21	OxOG	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
173-2 (Piece 4, 128-134)	1181.18	MS72-22	OxOGN	Done	Done	Ol, plag, cpx, ox, am	Cpx, plag	NA
173-6 (Piece 8A, 70-77)	1186.23	MS74-23	OxOG	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
178-4 (Piece 5A, 105-111)	1216.26	MS76-24	GN	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
179-2 (Piece 3B, 80-88)	1222.9	MS78-25	OxG	Done	NA	Plag, cpx, ox	Cpx, plag	NA
180-1 (Piece 3, 50-57)	1231	MS79-26	DOxOGN	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
185-3 (Piece 1, 87-95)	1281.93	MS82-27	OxG	Done	Done	Ol, plag, cpx, ox	Cpx, plag	NA
189-2 (Piece 3, 127-135)	1319.02	MS84-28	DOxOG	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
192-5 (Piece 1, 0-8)	1350.35	MS89-29	OxOG	Done	Done	Ol, plag, cpx, am	Cpx, plag	NA
193-1 (Piece 3A, 33-40)	1355.33	MS90-30	OxOG	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
196-2 (Piece 1, 13-18)	1374.88	MS91-31	DOxOG	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
196-3 (Piece 1, 7-13)	1375.78	MS92-32	OxOG	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
196-7 (Piece 12, 109-115)	1382.71	MS93-33	OG	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
203-3 (Piece 3, 108-115)	1434.21	MS95-34	DOxG	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
208-4 (Piece 2, 36-43)	1483	MS97-35	OxOG	Done	Done	Ol, plag, cpx, opx	Cpx, plag	NA
208-5 (Piece 3A, 72-79)	1484.86	MS98-36	OxGN	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
209-1 (Piece 2, 15-24)	1488.85	MS99-37	OxGN	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
210-5 (Piece 2A, 88-95)	1504.63	MS101-38	OxOGN	Done	Done	Ol, plag, cpx,	Cpx, plag	NA
91R-3 (Piece 2, 125-130)	521.2	BN1(F)	OG	Done	Done	NA	NA	NA
91R-2 (Piece 1E, 111-116)	519.86	BN2(F)	DOxOG	Done	Done	NA	NA	NA
93R-1 (Piece 5, 75-81)	532.85	BN3(F)	OxOG	Done	Done	NA	NA	NA
103R-2 (Piece 3F, 120-125)	597.39	BN4(F)	OxOG	Done	Done	NA	NA	NA
102R-3 (Piece 1, 8-14)	592.86	BN5(F)	OG	Done	Done	NA	NA	NA
103R-4 (Piece 4A, 36-45)	599.51	BN6(F)	OG	Done	Done	NA	NA	NA
90R-3 (Piece 2C, 115-120)	511.92	BN7(F)	OG	Done	Done	NA	NA	NA
127-5 (Piece 3, 22-28)	770.75	BN8(F)	OG	Done	Done	NA	NA	NA
132-1 (Piece 11B, 94-99)	814.14	BN9(F)	OG	Done	Done	NA	NA	NA
132-8 (Piece 7B, 112-118)	823.29	BN10(F)	OG	Done	Done	NA	NA	NA
150-3 (Piece 3, 77-83)	973.33	BN11(F)	DOxOG	Done	Done	NA	NA	NA
168-7 (Piece 3, 36-41)	1139.01	BN12(F)	DOxOG	Done	Done	NA	NA	NA
168-3 (Piece 2, 10-15)	1132.99	BN13(F)	OG	Done	Done	NA	NA	NA
173-4 (Piece 4B, 94-100)	1183.58	BN14(F)	OG	Done	Done	NA	NA	NA
177-5 (Piece 1A, 34-40)	1207.38	BN15(F)	OG	Done	Done	NA	NA	NA
180-4 (Piece 8, 93-100)	1235.71	BN16(F)	OG	Done	Done	NA	NA	NA
188-7 (Piece 1C, 61-68)	1315.96	BN17(F)	OG	Done	Done	NA	NA	NA
190-2 (Piece 1E, 69-75)	1327.92	BN18(F)	OG	Done	Done	NA	NA	NA
207-6 (Piece 1, 32-38)	1476.24	BN19(F)	OG	Done	Done	NA	NA	NA
209-5 (Piece 2B, 63-71)	1494.43	BN20(F)	OG	Done	Done	NA	NA	NA
91-2 (Piece 1E, 92-97)	519.67	BN1(A)	Altered	Done	Done	NA	NA	NA
91-3 (Piece 1E, 100-105)	520.95	BN2(Ah)	Altered	Done	Done	NA	NA	NA
91-3 (Piece 1D, 90-95)	520.85	BN2(Am)	Altered	Done	Done	NA	NA	NA
93-1 (Piece 2, 86-91)	532.96	NB3(A)	Altered	Done	Done	NA	NA	NA
103-2 (Piece 4, 139-142)	597.58	BN4(A)	Altered	Done	Done	NA	NA	NA
102-3 (Piece 1, 1-8)	592.79	BN5(A)	Altered	Done	Done	NA	NA	NA
103-4 (Piece 3, 18-22)	599.33	BN6(A)	Altered	Done	Done	NA	NA	NA
90-3 (Piece 2C, 97-100)	511.74	BN7(A)	Altered	Done	Done	NA	NA	NA
127-5 (Piece 2, 12-20)	770.65	BN8(A)	Altered	Done	Done	NA	NA	NA
132-1 (Piece 11A, 70-78)	813.9	BN9(A)	Altered	Done	Done	NA	NA	NA
132-8 (Piece 7B, 103-109)	823.2	BN10(A)	Altered	Done	Done	NA	NA	NA
150-3 (Piece 2B, 65-69)	973.21	BN11(A)	Altered	Done	Done	NA	NA	NA
168-7 (Piece 2A, 7-13)	1138.72	BN12(A)	Altered	Done	Done	NA	NA	NA
168-3 (Piece 3, 71-76)	1133.6	BN13(A)	Altered	Done	Done	NA	NA	NA
173-4 (Piece 4B, 105-113)	1183.69	BN14(A1)	Altered	Done	Done	NA	NA	NA
177-4 (Piece 2, 50-56)	1206.37	BN15(A)	Altered	Done	Done	NA	NA	NA
180-4 (Piece 9C, 109-119)	1235.87	BN16(A)	Altered	Done	Done	NA	NA	NA
188-7 (Piece 3A, 101-107)	1316.36	BN17(A)	Altered	Done	Done	NA	NA	NA
190-2 (Piece 2A, 97-103)	1328.2	BN18(A)	Altered	Done	Done	NA	NA	NA
207-6 (Piece 1, 1-7)	1475.93	BN19(A)	Altered	Done	Done	NA	NA	NA
209-4 (Piece 2B, 103-111)	1493.63	BN20(A)	Altered	Done	Done	NA	NA	NA
121-1 (Piece 2C, 22-28)	719.92	GS30-1	OG/MOG	NA	NA	Ol, plag, cpx, ox	NA	NA
121-4 (Piece 4B, 125-131)	725.37	GS31-2	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
122-2 (Piece 2, 37-45)	731.07	GS32-3	OG/MOG	NA	NA	Ol, plag, cpx, ox, am	NA	NA
123-6 (Piece 4C, 128-135)	746.99	GS33-4	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
123-7 (Piece 1A, 15-23)	747.34	GS34-5	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
130-3 (Piece 11, 99-107)	797.63	GS40-6	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
128-3 (Piece 14, 132-139)	778.73	GS38-7	OG/MOG	NA	NA	Cpx	NA	NA
134-7 (Piece 1B, 52-61)	841.3	GS44-8	OG/MOG	NA	NA	Ol, plag, cpx, opx	NA	NA
154-1 (Piece 2A, 4-11)	1005.34	GS59-9	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
159-2 (Piece 8B, 91-98)	1055.91	GS64-10	OG/MOG	NA	NA	Ol, plag, cpx, ox	NA	NA
178-7 (Piece 1B, 21-29)	1219.66	GS77-11	OG/MOG	NA	NA	Ol, plag, cpx, opx, ox	NA	NA
188-3 (Piece 1D, 105-112)	1310.89	GS83-12	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
190-7 (Piece 1B, 19-25)	1334.34	GS86-13	OG/MOG	NA	NA	Ol, plag, cpx, opx	NA	NA
191-4 (Piece 1B, 13-21)	1340.14	GS87-14	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
192-2 (Piece 3, 98-105)	1347.78	GS88-15	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
206-7 (Piece 3, 42-48)	1468.27	GS96-16	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
209-2 (Piece 1B, 37-44)	1490.11	GS100-17	OG/MOG	NA	NA	Ol, plag, cpx, opx	NA	NA
147-3 (Piece 1B, 39-42)	944.37	GS51-18	OG/MOG	NA	NA	Plag, cpx, opx, ox	NA	NA
149-5 (Piece 1, 5-13)	965.67	GS55-19	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
189-3 (Piece 2, 131-138)	1320.54	GS85-20	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
197-2 (Piece 8, 65-73)	1385.45	GS102-21	OG/MOG	NA	NA	Ol, plag, cpx,	NA	NA
90R-1 (Piece 1C, 45-48)	508.25	FV2-1	Felsic veins	NA	Done	Plag, cpx, am	Plag	Sr, O on plag
90R-3 (Piece 2B, 50-55)	511.27	FV5-2	Felsic veins	Done	Done	Ol, plag, cpx, am	NA	NA
99R-4 (Piece 5B, 97-102)	570.99	FV13-3	Felsic veins	Done	Done	Plag, cpx, ox, am	Plag	Sr, O on plag
109R-1 (Piece 2B, 17-22)	628.87	FV21-4	Felsic veins	Done	Done	Plag, cpx, ox	Plag	Sr, O on plag
120-4 (Piece 4, 34-41)	714.72	FV29-5	Felsic veins	Done	Done	Ol, plag, cpx, ox	NA	NA
126-5 (Piece 2A, 75-81)	761.57	FV35-6	Felsic veins	Done	Done	Plag, cpx, am	NA	NA
128-1 (Piece 5, 75-80)	775.25	FV37-7	Felsic veins	Done	Done	Plag, cpx, am	NA	Sr, O on plag
129-1 (Piece 7A, 53-56)	784.73	FV39-8	Felsic veins	Done	Done	Plag, cpx, am	NA	Sr, O on plag
136-4 (Piece 2A, 37-42)	851.25	FV45-9	Felsic veins	Done	Done	Ol, plag, cpx, am	Plag	Sr, O on plag
138-4 (Piece 3, 40-42)	865.8	FV47-10	Felsic veins	Done	Done	Plag, cpx, ox, am	Plag	Sr, O on plag
146-5 (Piece 4, 69-73)	937.28	FV50-11	Felsic veins	Done	Done	Ol, plag,	NA	Sr, O on plag
153-1 (Piece 3A, 30-33)	996	FV57-12	Felsic veins	Done	Done	NA	NA	NA
153-3 (Piece 3, 99-105)	999.37	FV58-13	Felsic veins	Done	Done	Ol, plag, cpx	NA	NA
157-5 (Piece 1, 1-8)	1040.28	FV61-14	Felsic veins	Done	Done	Ol, plag, cpx	Plag	Sr, O on plag
158-6 (Piece 3, 26-32)	1051.15	FV62-15	Felsic veins	Done	Done	Ol, plag, cpx	Plag	Sr, O on plag
158-8 (Piece 2A, 37-44)	1053.88	FV63-16	Felsic veins	Done	Done	Ol, plag, cpx	NA	Sr, O on plag
160-6 (Piece 3A, 120-124)	1071.75	FV65-17	Felsic veins	Done	Done	Plag, cpx	NA	Sr on plag
161-2 (Piece 4B, 106-113)	1075.45	FV66-18	Felsic veins	Done	Done	Plag,	Plag	Sr, O on plag
162-4 (Piece 4A, 105-110)	1087.41	FV67-19	Felsic veins	Done	Done	Plag	Plag	Sr, O on plag
184-2 (Piece 2, 18-21)	1270.88	FV81-20	Felsic veins	Done	Done	Plag, cpx	NA	NA
202-7 (Piece 2, 84-87)	1430.15	FV94-21	Felsic veins	Done	Done	Plag	Plag	Sr, O on plag

Notes: Working sample IDs were used throughout. OG = olivine gabbro, TrG = troctolitic gabbro, OxG = oxide gabbro, DOxG = disseminated oxide gabbro, DOxOG = disseminated oxide olivine gabbro, OxGN = oxide gabbronorite, altered = variably altered olivine gabbro and oxide gabbros, OG/MOG = olivine/oxide gabbro with fine-grained microgabbro "veins." ol = olivine, plag = plagioclase, cpx = clinopyroxene, opx = orthopyroxene, ox = titanomagnetite or ilmenite, am = amphibole. Sample powders were prepared by exclusive use of cleaned agate mills. Whole-rock major elements were analyzed by ICP-AES at Queensland University of Technology and ICP-OES at The University of Queensland. Whole-rock trace elements were analyzed by ICP-MS at The University of Queensland. Sr and O isotopes on selected felsic vein plagioclase (both primary and secondary) were analyzed at The University of Queensland. This paper focuses on whole-rock major element and selected trace element data on MS samples and mineral probe data on all the samples analyzed. Petrogenesis and geochemistry BN samples (fresh and altered sample pairs) are discussed elsewhere by Bach et al. (2001). Petrogenesis and geochemistry of FV (felsic vein) samples will be presented elsewhere by J.H. Natland et al. (unpubl. data). Trace element data on whole-rock samples and mineral separates will be discussed elsewhere by Y. Niu et al. (unpubl. data). NA = not analyzed.