Initial Reports Volume 187
Chapter 1, Table T2. Summary of igneous petrology, Leg 187.

Notes: pl-ol = plagioclase-olivine; X = was definitely present; (x) = small amount was present; cpx = clinopyroxene; CCV = composite calcite vein; (Cc) = calcite; X? = metamorphosed or highly altered clasts of uncertain mineralogy; ? = [Author: Please define]; (Dc) = dolomite.

			Length (m)			Igneous lithology
Age (Ma)	Hole	Mantle domain	Cored	Recovered	Recovery (%)	Aphyric	Sparsely pl-ol phyric	Moderately pl-ol phyric	Breccia	Deposit type	Unit name	Alteration
~25	1152A	Transitional Pacific	11.20	0.60	5.00	X				Talus	Unit 1: Aphyric basalt	Slight
	1152B	Transitional Pacific	23.70	3.60	15.15	X	(x)	X (cpx)		Talus	Unit 1: Aphyric basalt	Slight
											Unit 2: Sparsely to moderately pl-ol-cpx phyric basalt	Slight
			Total:	4.20	12.03							

~28	1153A	Pacific	7.30	1.77	24.25	X				Pillows	Unit 1: Aphyric basalt	Slight
			Total:	1.77	24.25							

~28	1154A	Pacific	34.40	9.42	28.90			X		Pillows	Unit 1: Moderately pl-ol phyric basalt	Slight
			Total	9.42	28.90							

~24.5	1155A	Transitional Pacific	26.20	2.34	8.93	X	(x)	X		Pillows	Unit 1: Sparsely to moderately pl-ol phyric basalt 	Slight to moderate
										Talus	Unit 2: Aphyric basalt	
	1155B	Transitional Pacific	46.00	18.18	39.52			X	CCV	Pillows into sediments	Unit 1: Moderately pl-ol phyric basalt 	High at top
											  (micritic sediments + lithics in fractures)	Slight at bottom
			Total:	20.52	28.42							

~22	1156A	Indian	11.40	6.30	55.26		(x)	X	X (Cc)	Talus	Unit 1: Breccia of phyric basalt	Slight
									CCV	Pillows	Unit 2: Sparsely to moderately pl-ol phyric basalt with carbonate sediments	Slight to moderate
	1156B	Indian	33.60	9.92	29.52			X		Unknown	Unit 1: Moderately to highly pl-ol phyric basalt	Slight to moderate
			Total:	16.22	36.04							

~22.5	1157A	Indian	16.40	2.92	17.80	X		X	X (Cc)	Rubble	Unit 1: Basaltic rubble (aphyric and pl-ol phyric basalt with carbonate sediments)	Slight to moderate
	1157B	Indian	40.40	11.70	28.96			X	CCV	Pillows	Unit 1: Moderately pl-ol phyric basalt	Slight to moderate
			Total:	14.62	25.74							

~21	1158A	Pacific	14.40	0.85	5.90	X	X			Rubble (pillows)	Unit 1: Aphyric to sparsely ol-pl phyric basalt (fine grained)	Slight to moderate
	1158B	Pacific	15.00	1.60	10.67	X	X			Rubble? (flow/dike)	Unit 1: Aphyric to sparsely ol-pl phyric basalt (fine grained)	Slight to moderate
	1158C	Pacific	9.40	1.61	17.13	X	X			Flow/dike?	Unit 1: Aphyric to sparsely ol-pl phyric basalt 	Slight to moderate
											Unit 2: Diabase (with aphyric basalt)	Moderate to high
			Total:	4.06	10.33							

~14	1159A	Pacific	27.70	7.96	28.74	X			X (Si)	Pillows	Unit 1: Aphyric basalt (+ hyaloclastites)	Slight to moderate
			Total:	7.96	28.74							

~21.5	1160A	Pacific	5.10	0.43	8.43	X		X		Rubble (pillows)	Unit 1: Aphyric basalt	Slight to moderate
	1160B	Pacific	45.10	13.01	28.85	X		X		Pillows	Unit 1: Aphyric basalt (microcrystalline) 	Moderate
										Massive	Unit 2: Aphyric basalt (fine grained) 	Slight
										Pillows	Unit 3: Moderately pl(-ol) basalt (microcrystalline) 	Moderate to high
										Massive	Unit 4: Moderately pl ± ol phyric basalt (fine grained)	Slight
										Pillows	Unit 5: Moderately pl-ol basalt (microcrystalline) 	Moderate to high
										Massive	Unit 6: Moderately pl phyric basalt (fine grained) 	Slight to moderate
										Pillows	Unit 7: Aphyric basalt (microcrystalline)	Slight
			Total:	13.44	26.77							

~19	1161A	Indian	29.30	4.39	14.98	X	X	X	X (Si)	Talus	Unit 1: Basaltic rubble (sparsely pl-ol phyric basalt; moderately pl-ol phyric basalt; fine-grained aphyric basalt with Si-clay cemented breccia)	Moderate to high
	1161B	Indian	8.50	0.86	10.12	X	X	X	X (Si)	Talus	Unit 1: Basaltic rubble (microcrystalline aphyric basalt; sparsely pl-ol phyric basalt; moderately pl-ol phyric basalt; fine-grained aphyric basalt with Si-clay cemented breccia)	Moderate to high
			Total:	5.25	13.89							

~18	1162A	Pacific	31.40	2.58	8.22	X?	?	X?	X	Fault	Unit 1: Mixed igneous clasts (metabasalt) 	High to very high
									(Dc)	Breccia?	Unit 2: Dolomite-cemented breccia (basalt, metadiabase, cataclasite)	High to very high
	1162B	Pacific	58.90	9.94	16.88	X?	?	X?	X	Fault	Unit 1: Dolomite limestone (with lithics)	High to very high
										Breccia?	Unit 2: Dolomite-cemented breccia (aphyric and phyric basalt)	High to very high
			Total:	12.52	13.86							

~17	1163A	Transitional Pacific	47.10	15.7	33.33	X		X	X (Cc)	Pillows	Unit 1: Moderately pl-ol phyric basalt 	Slight to moderate
									CCV		Unit 2: Aphyric basalt with carbonate sediments	Slight to moderate
			Total:	15.7	33.33							

18-19	1164A	Transitional Pacific	8.50	0.97	11.41	X (cpx)				Pillows	Unit 1: Aphyric basalt (pl-cpx microphyric)	Slight
	1164B	Transitional Pacific	65.70	10.65	16.21	X	X	X	X (Si)	Rubble (pillows)	Unit 1: Basaltic rubble (aphyric and pl-ol phyric basalt with Si-clay cemented breccia)	Slight to high
			Total:	11.62	15.66							

	Cruise totals:		617.20	137.3	22.25