Initial Reports, Volume 209
Ms 209IR-105
Chapter 5, Table T3. Vein mineralogy, Holes 1270A, 1270B, 1270C, and 1270D.

Notes: The volume of veins is based on macroscopic observations of vein mineralogy and estimates of vein percentages by pieces. We computed volume percentage of veins by using the volume weighted average of the macroscopic estimates using the relative curated length and assuming a constant core radius throughout the site.

Hole	1270A	1270B	1270C	1270D

Penetration depth (mbsf) 26.9	45.9	18.6	57.3
Recovery (%)	12.0	37.4	10.6	13.4
Length recovered (m)	3.2	17.2	2.0	7.7
Volume recovered (cm3)	8,093	43,040	4,943	19,251
Veins in hole (cm3/m)	31.0	12.3	50.8	47.1
Veins in hole (%)	1.23	0.49	2.03	1.88

Vein minerals in hole (cm3/m):				
Serpentine	24.2	2.1	43.8	39.3
Talc	5.88	6.38	0.56	2.53
Chlorite	0.02	2.51	-	-
Amphibole	0.02	1.28	-	0.09
Secondary plagioclase		0.01	-	-
Magnetite	0.87	0.00	-	0.10
Iron oxides (other)	-	0.02	6.35	4.57
Sulfides	-	-	-	0.23
Carbonates		0.01	0.08	2.03

Vein minerals in hole (%):				
Serpentine	0.96	0.08	1.75	1.57
Talc	0.23	0.25	0.00	0.10
Chlorite	0.001	0.10	-	-
Amphibole	0.001	0.05	-	0.004
Secondary plagioclase	-	0.0003	-	-
Magnetite	0.03	0.0001		0.004
Iron oxides (other)	-	-	0.02	0.18
Sulfides	-	-		0.01
Carbonates	-	-	0.25	0.01

Vein minerals in veins (%):				
Serpentine	78.07	17.02	86.31	83.48
Talc	18.98	51.90	1.10	5.37
Chlorite	0.08	20.42	-	
Amphibole	0.08	10.40	-	0.19
Secondary plagioclase		0.00	-	
Magnetite	2.80	0.00		0.22
Iron oxides (other)			12.51	9.70
Sulfides		0.00		0.49
Carbonates			0.08	0.56