G109 0670A001D010000001 1, 2, and 4 KUE PIECE 1: DRILL CUTTINGS(SERPENTINIZED HARZBURGITE). PIECES 2 AND 4: SERPENTINIZED HARZBURGITE. n/a Massive, non-layered. None apparent in sample. Olivine Orthopyroxene Spinel 89% 10% 1% 0.01-1.0 mm 1.0-5.0 mm < 1 mm Polygonal Elliptical to lensoid. lensoid Not apparent Not apparent Not apparent See description 60% with serpentinite + talc. None apparent Replacement: 100% with serpentine, magnetite, and carbonate. 95% Pseudomorphic replacement of orthopyroxene with serpentine (bastite)-rimmed talc. Mesh texture serpentine + magnetite + minor carbonate replacing olivine. 5% of sample, veins < 0.5 mm thick. Chrysotile fibers oriented perpendicular to vein lengths, carbonate in veins is massive. common magnetite-filled veins. G109 0670A002D010000001 1-13 KUE PIECES 1-6 AND 8-12: SERPENTINIZED HARZBURGITE Green No primary layering Well-defined foliation planes defined by preferred orientation of orthopyroxene porphyroclasts set in serpentinized olivine matrix; orthopyroxene is lens-shaped. Olivine Orthopyroxene Spinel 89% 10% 1% < 1 mm 1-5 mm 0.5 mm Polygonal Lens, elongate See description Not apparent Yes, along foliation planes. Noted below 100% with serpentine and magnetite. 60% with serpentine and talc. Approximately 1% with magnetite Shape: Lens-like, blocky;fragments elongate parallel to the foliation plane. 95% Pseudomorphic replacement of orthopyroxene with serpentine and rim of talc, mesh texture replacement of olivine with serpentine, magnetite, and carbonate. 1%, < 1 mm thick. Carbonate, magnetite, and serpentine; serpentine is fibrous; carbonate and magnetite are massive. Piece 13: drill cuttings (serpentinized harzburgite). G109 0670A003W010100001 2 and 3 KUE PIECE 2: SERPENTINIZED HARZBURGITE. PIECE 3: ASSORTED RUBBLE. Green gray No primary layering. None apparent. Olivine Orthopyroxene Spinel 90 7-10 ~1 < 1 mm 1-4 mm n/a Polygonal Round to elliptical. Lens-like, blocky fragments, elongate. Not apparent Not apparent. Not apparent. 100% with serpentine + magnetite. 60% with serpentine + talc. Approximately 1% by magnetite. 95% Pseudomorphic replacement of orthopyroxene with serpentine and rim of talc; mesh texture replacement of olivine with serpentine, magnetite, and carbonate. 1-2%, < 1 mm thick. Carbonate, magnetite, serpentine (chrysotile), chlorite(?), undetermined texture filling. Piece 3 comprises: Serpentinized harzburgite- 5 pieces, same as piece 2. Sparsely plagioclase-olivine phyric basalt- 1 piece of rubble, similar to Piece 1. Aphyric basalt- One 13 x 7 mm piece of hydrothermally-altered aphyric basalt containing quartz and zeolite veins, groundmass strongly and pervasively altered to chlorite (?). G109 0670A004W010000001 1-4 KUE SERPENTINIZED HARZBURGITE Dark to light green. No apparent primary layering. Foliation defined by elliptical orthopyroxene porphyroclasts, inclination of foliation indeterminate. Olivine Orthopyroxene Spinel 84-945-15 1 < 1 mm 0.3-1.2 mm 0.1-0.5 mm Polygonal Round to elliptical Blocky, elongate Not apparent See description See description 100% with serpentine,talc, and carbonate60% with serpentine and talc. < 5% with magnetite Orientation: Long axes of elliptical orthopyroxene are aligned. Orientation: Grains are elongated in same orientation as elliptical orthopyroxene. 87-93Serpentine mesh texture after olivine, basite pseudomorphing orthopyroxene, talc + serpentine halos around orthopyroxene. 1-2%, average < 1 mm thick with one vein 1-2 mm thick. Veins filled by one or more of carbonate, magnetite, and serpentine; thick vein in Piece 4B is deformed in same sense as defined by orthopyroxene grains. G109 0670A005R010140002 3-17 KUE SERPENTINIZED PERIDOTITE Black to green No primary layering apparent. Foliation defined by elongate orthopyroxene, foliation inclined at approximately 20 degree from horizontal. Olivine Orthopyroxene Spinel 95 0-4 n/a Indeterminate in hand seciman. 0.8-1.6 mm n/a Indeterminate in hand specimen. Elongate to elliptical. n/a Not apparent. Defined by long axes of elongate opx n/a See description See description n/a Description: 100% with serpentine + talc + carbonate. Description: 0-100% with serpentine +talc. Not apparent (see 109-670A-5R-02). ? Distinctive "tortoise-shell" texture developed throughout unit, polygonal domains in texture are defined by crosscutting black hands, possibly serpentine filled; within polygonal domains, concentric elliptical rings are defined by alternating bands of light to dark green minerals. 1-10%, 1-4 mm thick. Total percent secondary minerals: 96-100%. Dark bands defining polygonal domains 1-4 mm thick, centers of dark bands contain white to light green mineral, Piece 16 has a greater concentration of bands filled with light green mineral. 109-670A-5R-1, Unit 1: serpentinized harzburgite. Pieces 1 and 2: Similar to other samples from Unit 1. G109 0670A005R020000002 1-7 KUE PIECES 1-3 AND 5-7:SERPENTINIZED PERIDOTITE. PIECE 4:SERPENTINIZED PERIDOTITE,BUT PIECE 4 WITH THE FOLLOWING DIFFERENCESn/a n/a n/a Spinel < 1 Approximately 1 mm long Blocky to elonagte. May be defined by spinel layer. Not apparent. n/a Pieces 1-7 as in 109-670A-5R-01. G109 0670A005R020620003 8-19 KUE HARZBURGITE Green No primary layering apparent. Foliation defined by elongate orthopyroxene grains, foliation ap ears to be near horizontal. Olivine Orthopyroxene Clinopyroxene Spinel 82-955-15 0-2 0-1 < 2 mm 0.5-1.6 cm. 3 mm 0.7-1.0 mm. Polygonal Round to elongate. Rounded Blocky to elongate. Not apparent in hand specimen. See description Not apparent. May be defined by elongate spinel. Approximately 90%. 0-10% with serpentine + magnetite +talc.See description < 5% with magnetite. Orientation: Defined by elongate orthopyroxene where present. Replacement: 0-10% with pale green alteration assemblage. 90% Mesh texture serpentine replacing olivine, fibrous bastite replacing orthopyroxene, magnetite rimming spinel, also dark halos around orthopyroxene. < 1%, 1-2 mm thick. Veins filled by massive magnetite + serpentine; also white veins filled by fibrous material, possibly chrysotile. G109 0670A006R010000003 1-10 KUE HARZBURGITE Green Not apparent in hand specimen. Weak foliation defined by long axes of slightly elongate orthopyroxene grains, inclination approximately 20 degree from horizontal. Olivine Orthopyroxene Clinopyroxene Spinel 80-955-15 1-4 1-2 < 0.2 mm Most are 0.6-0.8 cm, ange is 0.1-3.6 cm.0.1-0.4 mm 0.1-0.3 mm. Round See description Round Round to elongate, often blocky. Not apparent. See description Not apparent. See description See description Approximately 10% by bastite Indeterminate in hand specimen. 1-5% with magnetite. Replacement: Approximately 90% with serpentine + magnetite + talc. Shape: Most round to slightly elongate, some very elongate. Orientation: Weak foliation defined by long axes of elongate grains. Orientation: Weakly aligned with elongate orthopyroxene. 60% Olivine replaced by serpentine, magnetite, and talc in mesh texture; orthopyroxene partially pseudomorphed by bastite; spinel rimmed by magnetite. < 1%, 1-2 mm thick. Veins are black, possibly magnetite filled. G109 0670A007R010000003 1-5 KUE HARZBURGITE Green Piece 1 contains layering defined by concentration of orthopyroxene.Thickness: Indeterminate. Azimuth and dip: Indeterminate. Modal layering: Defined by alternating orthopyroxene-rich and olivine-rich layers. Sequence and abundance: Indeterminate. Contact: Sharp. Foliation defined by long axes of tabular orthopyroxene grains. Piece 1: Foliation defined by disaggregated and drawn out spinel, and by elongated serpentine halos which extend from orthopyroxene. Olivine Orthopyroxene Clinopyroxene Spinel 85-953-10 1-4 1 < 0.2 mm As large as 8 mm. As large as 4 mm. 1-2 mm Round Round to elliptical. Round. Blocky to elliptical Not apparent. See description Not apparent. See description See description 0-10% with talc, serpentine. 0%, looks fresh. < 5% with magnetite. Replacement: Approximately 70% with talc + serpentine + magnetite. Orientation: Defined by long axes of elliptical orthopyroxene grains, weak. Orientation: Defined by long axes of some elliptical spinel grains. 70 Olivine replaced by serpentine, magnetite, and talc in a mesh texture; orthopyroxene pseudomorphed by bastite and rimmed by talc; spinel rimmed by magnetite. < 1%, < 1 mm thick. Most veins are black, possibly magnetite filled; some veins filled by white material, possibly chrysotile. G109 0670A007R010290004 6-13 KUE SERPENTINITE Black and white mottled. Not apparent. Possible shear zones between Pieces 7A and 7C and between 13B and 13D; parts of Piece 6 were embedded in sheared matrix material. Material was removed and replaced with Pieces 7B, 13C, and 6B, respectively. Piece 6: Serpentine-rich material consisting of massive light green fibers surrounding pieces. Pieces 7A and 7C: Separated by a massive serpentine vein approximately 1.5 cm thick consisting of light green serpentine needles > 1 cm in length; both pieces contain talc + serpentine-rich layer on one side which defines the boundary of the shear zone. Olivine Orthopyroxene Spinel Clinopyroxene 95 4-5 1- <1< 1 Indeterminate in hand specimen. 2-6 mm < 1 mm 4 mm Can't be determined in hand specimen. Round Round to elliptical. Round Not apparent. Not apparent. See orientation Not apparent. See description See description As much as 10%, rimmed with magnetite. 0%, fresh. Replacement: 100% with serpentine, talc, and magnetite. Replacement: As much as 90% with serpentine + talc. Orientation: Piece 10 defined by long axes of elliptical spinel grains. 99 Olivine replaced by alternating bands of dark and light secondary phases, orthopyroxene pseudomorphed by bastite and rimmed by talc, spinel rimmed by magnetite. As much as 5% in rock pieces, 1 mm to 2 cm thick. White talc veins as wide as 1 mm, blue-green opaline serpentine veins 2 mm wide, rich veins in Pieces 6-7 and 13 (see deformation section for description) Piece 13: Massive serpentine-rich zones between Pieces 13A, 13B, and 13D, similar to those found between 7A and 7C. No apparent foliation defined by elongate minerals. Note: Shading on graphic representation denotes freeze-dried vein material in correct stratigraphic position. G109 0670A008R010000005 1-5 KUE HARZBURGITE Green Not apparent. Defined by elongated orthopyroxene in Piece 1. Olivine Orthopyroxene Clinopyroxene Spinel 90 5-15 1-2 1 < 1 mm 3-6 mm 1-2 mm 1-2 mm, some as large as 5 mm Round Round to elliptical and elongate. Round Blocky to elliptical. Not apparent See description Not apparent See description See description 1-20% by bastite. Fresh < 5% with magnetite. Replacement: As much as 80% with serpentine + magnetite. Orientation: Defined by long axes of elongate orthopyroxene in Piece 1. Orientation: Defined by long axes of elliptical spinel grains. 50-70Mesh texture serpentine, magnetite replacing olivine, bastite pseudomorphing orthopyroxene, magnetite rims to spinel. < 1%, < 1 mm thick. Black magnetite-filled veins, and short (< 3 mm) serpentine-filled white veins. G109 0670A009R010000006 1, 3, 9 and 12 KUE SERPENTINIZED HARZBURGITE Green to black-green No primary layering apparent. Foliation defined by long axis of tabulated orthopyroxene. Olivine Orthopyroxene Clinopyroxene Spinel 80-907-18 1-2 1 2-4 mm in Piece 1, <0.2 mm in others As large as 10 mm As large as 3 mm < 1 mm Elongated in Piece 1. Round to tabular. Blocky to round. Blocky Not apparent. See description Not apparent. Not apparent. See description 10-20% by talc and serpentine. See description 0-5% with magnetite. Replacement: 50% with serpentine, magnetite, and talc in Piece 1; approximately 70% with same minerals in other pieces. Orientation: Defined by long axes of elliptical orthopyroxene grains. Replacement: 5-10% with serpentine, talc, and possible chlorite. Olivine: 2-4 mm in Piece 1, < 0.2 mm in other pieces 64 Olivine replaced by serpentine, magnetite, and talc in a mesh structure; orthopyroxene pseudomorphed by bastite; clinopyroxene replaced by serpentine, talc, and possibly chlorite. Approximately 2%, as large as 1 mm thick. Most veins are black, possible magnetite-filled; some veins are filled by pale green material (probably serpentine + talc). G109 0670A009R010000006 2, 4-8, 10, 11, 13, and 14 KUE SERPENTINITE. Mottled black and white. No primary layering apparent. Not apparent except for in Piece 14 where a 1-2 cm-wide sheared zone exists, filled with antigorite, carbonate, and tremolite. Olivine Orthopyroxene Spinel 95-990-4 1 Indeterminate in hand specimen. As large as 4 mm 1-2 mm Indeterminate in hand specimen. Tabular. Blocky to rounded. Not apparent. Not apparent. Not apparent. See description 70-100% by bastite. Fresh. Replacement: 100% with serpentine, magnetite, talc, and carbonates. 99% Distinctive "tortoise-shell" texture, except for Piece 8 which has a net texture; polygonal domains are defined by black serpentine minerals. Pieces 6, 10, and 14: 5-20%, as large as 1 cm. Filled with light-colored serpentine mineral, possibly antigorite (Pieces 6, 10, and 14); Piece 14 also contains veins composed of tremolite, carbonate, and antigorite; Piece 11 contains clay plus sheet silicate-rich matrix containing rubble. 109-670A-10W-1: drill cuttings: serpentinite, harzburgite, hyaloclastite, basalt, and serpentine minerals. 109-670A-10W-2: drill cuttings: serpentinite, harzburgite, hyaloclastite, basalt, and serpentine minerals.