Table T1.

Table T1. Summary of shore-based experiments conducted on Leg 169 physical properties samples.

Unit/Subunit description Hole 856H
Hole 1035D
Hole 1035E
Hole 1035F
Hole 1035H

IP V
IP V
IP V
IP V
IP V

Turbidites and hemipelagic sediment

Subunit IIA: interbedded gray laminated hemipelagic claystone, and turbiditic bedded and cross-bedded siltstone and sandstone; sulfide disseminations and veins can occur but generally are <2% of the rock
9
5

2

1

1

Subunit IID: greenish gray, chloritic siltstone and mudstone with rare interbeds of fine-grained sandstone
1

1

1
1

4
1

Sulfide feeder zone and mineralized sediments

Subunit VIA: sulfide (pyrrhotite/chalcopyrite/isocubanite/pyrite)-veined, moderately to intensely indurated and hydrothermally altered mudstone, siltstone, sandstone (10%-50% sulfide)
6
1

3
1

1

Subunit VIB: siltstone with sulfide (pyrrhotite/chalcopyrite/isocubanite/pyrite) veins and disseminations (2%-10% sulfide)
4
2

1
1

4
3

7
2

Subunit VIC: sulfide (pyrrhotite/chalcopyrite/isocubanite/pyrite)-banded sandstone (10%-50% sulfide)
3

1

1
1

Massive and semimassive sulfide (>50% sulfide)

Subunit VA (Type 1 of Leg 139): fine-grained, homogeneous pyrrhotite/sphalerite/isocubanite/chalcopyrite

1

Subunit VC: clast-supported massive sulfide breccia composed of pyrite-dominant clasts in fine-grained matrix of marcasite, black iron-rich sphalerite with minor chalcopyrite, isocubanite, pyrrhotite; also neoplastic pyrite infilled and replaced by black sphaleritic, magnetitic clays, minor chalcopyrite with sediment altered to chlorite and minor epidote

4
2

Subunit VD (Type 5 of Leg 139): colloform and vuggy pyrite

5
3

Basaltic sills and flows

Unit VII: slightly to intensely altered cryptocrystalline basaltic sills intercalated with highly indurated gray hemipelagic and turbiditic sediment
4
2

Unit VIII: pale to medium green, fine-grained, slightly to highly altered pillow lavas and hyaloclastic basalts with quartz-chlorite-Cu-Fe sulfide/pyrrhotite veins
3
1

Total samples:
30
11

3
1

2
0

15
8

18
6

Notes: Brief lithologic descriptions and site/hole information for each sample from Shipboard Scientific Party (1998b). IP = index properties measurements, V = velocity measurements.

Unit/Subunit description	Hole 856H		Hole 1035D		Hole 1035E		Hole 1035F		Hole 1035H
Unit/Subunit description	IP	V	IP	V	IP	V	IP	V	IP	V
Turbidites and hemipelagic sediment
Subunit IIA: interbedded gray laminated hemipelagic claystone, and turbiditic bedded and cross-bedded siltstone and sandstone; sulfide disseminations and veins can occur but generally are <2% of the rock	9	5			2		1		1
Subunit IID: greenish gray, chloritic siltstone and mudstone with rare interbeds of fine-grained sandstone	1		1				1	1	4	1
Sulfide feeder zone and mineralized sediments
Subunit VIA: sulfide (pyrrhotite/chalcopyrite/isocubanite/pyrite)-veined, moderately to intensely indurated and hydrothermally altered mudstone, siltstone, sandstone (10%-50% sulfide)	6	1					3	1	1
Subunit VIB: siltstone with sulfide (pyrrhotite/chalcopyrite/isocubanite/pyrite) veins and disseminations (2%-10% sulfide)	4	2	1	1			4	3	7	2
Subunit VIC: sulfide (pyrrhotite/chalcopyrite/isocubanite/pyrite)-banded sandstone (10%-50% sulfide)	3						1		1	1
Massive and semimassive sulfide (>50% sulfide)
Subunit VA (Type 1 of Leg 139): fine-grained, homogeneous pyrrhotite/sphalerite/isocubanite/chalcopyrite			1
Subunit VC: clast-supported massive sulfide breccia composed of pyrite-dominant clasts in fine-grained matrix of marcasite, black iron-rich sphalerite with minor chalcopyrite, isocubanite, pyrrhotite; also neoplastic pyrite infilled and replaced by black sphaleritic, magnetitic clays, minor chalcopyrite with sediment altered to chlorite and minor epidote									4	2
Subunit VD (Type 5 of Leg 139): colloform and vuggy pyrite							5	3
Basaltic sills and flows
Unit VII: slightly to intensely altered cryptocrystalline basaltic sills intercalated with highly indurated gray hemipelagic and turbiditic sediment	4	2
Unit VIII: pale to medium green, fine-grained, slightly to highly altered pillow lavas and hyaloclastic basalts with quartz-chlorite-Cu-Fe sulfide/pyrrhotite veins	3	1
Total samples:	30	11	3	1	2	0	15	8	18	6