leg site hole core coretype section top interval unit number sub unit pieces observer rockname contact phenocrysts mineral name (1) phenocrysts percent (1) phenocrysts size (1) phenocrysts description (1) phenocrysts mineral name (2) phenocrysts percent (2) phenocrysts size (2) phenocrysts description (2) phenocrysts mineral name (3) phenocrysts percent (3) phenocrysts size (3) phenocrysts description (3) phenocrysts mineral name (4) phenocrysts percent (4) phenocrysts size (4) phenocrysts description (4) phenocrysts mineral name (5) phenocrysts percent (5) phenocrysts size (5) phenocrysts description (5) phenocrysts comments groundmass color vesicles percent vesicles size vesicles shape vesicles distribution vesicles miaroles vesicles comments structure alteration veins frractures size veins fractures orientation veins fractures percent veins fractures comments main comments more data latitude numerical form longitude numerical form depth top interval depth below sea floor 109 648 B 007 Rotary 01 000 0027 n/a KUE CEMENT WITH BASALT FRAGMENTS see comments see comments see comments see comments see comments see comments see comments see comments 0-150 cms: cement with < 1% basalt fragments N 22.92200 -44.94708 0015.00 1500 109 648 B 007 Rotary 02 022 0028 2 and 3 KUE SPARSELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 2-4 mm Euhedral, fresh Olivine < 1 < 1 mm Round, fresh Homogeneous distribution throughout unit, includes plagioclase-olivine glomerocrysts. Uniformly fine grained. Gray <1 < 1 mm Round n/a Some as miaroles Empty, concentrated near edg. n/a Fresh. None Glass: none observed, no contacts. N 22.92200 -44.94708 0016.50 1672 109 648 B 008 Rotary 01 000 0029 1-14 KUE SPARSELY PLAGIOCLASE PHYRIC BASALT n/a Plagioclase 1-2 1-6 mm Euhedral-subhedral, fresh Olivine-rare Rare < 1 mm Rounded, fresh, associated with plagioclase phenocrysts Homogeneous distribution throughout unit. Fine grained (Pieces 2, 4 and 6) to fine to medium grained (Pieces 8, 10, and 12-14), coarsening downward. Gray Pieces 2 and 6: some vesicles as miaroles; Pieces 8 and 13: < 1%, 1-5 mm, elongate, concentrated near edge. Pieces 2 and 6: 2%, 1-5 mm, round, some elongate, empty, homogeneous distribution, some as miaroles. Pieces 4, 10, and 12-14: < 1%, < 1 mm, mostly round, empty, homogeneous distribution. n/a Fresh, Pieces 4 and 8: Alteration halo 4-5 mm wide composed of 2-3 mm-wide pale band adjacent to vein and 2 mm wide outer black line with sharp alteration front. Pieces 2, 6, 10, and 12-14: Dark alteration halo 2-4 mm wide with sharp alteration front. Pieces 6 and 13: Black halos, irregular thickness. Alteration halos indicate position of fractures, no clay on fracture surfaces. Piece 14: Small empty fracture in dark alteration halo. Glass: None, no contacts. Note: Pieces 1, 3, 5, 7, 9, and 11 are drill cuttings composed of: Basalt- Microcrystalline basalt with < 1% plagioclase phenocrysts, some broken. Glass- exhibiting conchoidal fracturing with fractures commonly filled by "sugary", microcrystalline, pale orange mineral; some plagioclase phenocrysts embedded in glass. Cement- Irregular and rounded fragments. N 22.92200 -44.94708 0024.00 2400 109 648 B 009 Rotary 01 000 0030 1-8 KUE SPARSELY TO MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 2-4 mm Euhedral, fresh Olivine 1 < 1 mm Rounded, fresh Homogeneous distribution throughout unit; occur singly and in glomerocrysts. Fine grained (Piece 1) to fine to medium grained (Piece 7), coarsening downward. Gray <1 < 0.5 mm Round, empty Homogeneous distribution Piece 5 and 7: < 1%, < 1 mm, round to elongate, empty, homogeneous distribution. Pieces 1-3 n/a Fresh. Piece 2: Small empty fracture. Glass: none, no contacts. N 22.92200 -44.94708 0028.00 2800 109 648 B 009 Rotary 01 061 0031 9-11 KUE SPARSELY TO MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 1-4 mm Euhedral, fresh, occur singly and in glomerocrysts. Olivine < 1 < 1 mm Rounded, fresh, occur primarily in glomerocrysts, rarely as isolated phenocrysts. Heterogeneous distribution; concentrated in isolated patches. Uniformly fine grained. Gray Pieces 9-11: < 5% of vesicles as miaroles. Pieces 9 and 10: 5%, 0.5-2.0 mm, round, most empty, some lined with orange or bluish smectite, concentrated in local areas. Piece 11: 10%, 0.5-2.0 mm, round, most empty, some lined with orange clay or bluish smectites, homogeneous distribution. Pieces 9-11: < 5% of vesicles as miaroles. n/a Fresh. Pieces 10 and 11: Dark alteration halo 2 mm wide parallel to fracture surfaces bounding sample, smectite and orange clay confined to vesicles within halos. Bounding margins of samples, none within samples. Glass: None, no contacts. N 22.92200 -44.94708 0028.00 2861 109 648 B 010 Rotary 01 000 0031 10R-1, 1-3 through 12R-1, CC KUE SPARSELY TO MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 2-4 mm Euhedral, fresh Olivine-rare n/a < 1 mm Round, fresh Homogeneous distribution throughout unit; mostly as glomerocrysts but also singly. Uniformly fine grained. Gray 5 0.5-2.5 mm Round, empty Homogeneous distribution Piece 10R-1, 2: < 1%, 1-2 mm, irregular shapes, empty concentrated in band through center. Piece 10R-1, 1 and 3: < 1%, 1-2 mm, irregular shapes, empty, occur near or next to vesicles. Piece 10R-1, 1: Orange clay in vesicle near rim. n/a Fresh. Piece 10R-1, 1: Dark alteration halo 2 mm wide. Piece 10R-1, 2: Empty crack. Glass: None, no contacts. Piece 4: CEMENT. 109-648B-11R-1, 0-150 cm: CEMENT. 109-648B-11R-2, 0-150 cm: CEMENT. 109-648B-11R-3, 0-150 cm: CEMENT. 109-648B-11R-CC, 0-30 cm: CEMENT. 109-648B-12R-1, 0-140 cm: CEMENT. 109-648B-12R-2, 0-130 cm: CEMENT. 109-648B-12R-3, 0-148 cm: CEMENT. 109-648B-12R-4, 0-19 cm: CEMENT. 109-648B-12R-cc, 0-40 cm: CEMENT. N 22.92200 -44.94708 0028.00 2800 109 648 B 013 Rotary 01 000 0032 1-4 KUE SPARSELY TO MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase <1-3 0.5-3.0 mm Euhedral, fresh Olivine < 1 < 0.5 mm Rounded, fresh Heterogeneous distribution; concentrated in patches, especially in Piece 3; occur singly and in glomerocrysts. Fine grained (Pieces 1, 3, and 4) to fine to medium grained (Piece 2). Gray < 1%, < 1 mm, irregular shape, bounded by crystal faces, patchy distribution; approximately 50% of all voids are miaroles. Pieces 1 and 3-4: < 1%, < 1 mm, round, empty or glass(?)-filled, homogeneous distribution. Piece 2: Approximately 1%, < 1 mm, round, empty, patchy distribution. Piece 3: Bluish smectite-lined vesicles in dark alteration halo. n/a Fresh. Pieces 1-2 and 4; Dark alteration halos approximately 2 mm wide parallel to fracture surfaces bounding samples. Piece 3: Bisected by alteration front, bluish smectite occurs as vesicle lining within the dark zone. Piece 1: Small crack. Glass: Pieces 1, 3, and 4: Possible glass-infilling vesicles. Piece 2: None. Pieces 1-4: No contacts. N 22.92200 -44.94708 0023.00 2300 109 648 B 013 Rotary 01 030 0033 13R-1, 5 and 6 through 14R-1 KUE SPARSELY TO MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 1-4 mm Euhedral, fresh. Olivine < 1 < 1 mm Rounded, fresh, rarely as isolated phenocrysts, mainly in glomerocrysts. Homogeneous distribution throughout unit; occur singly and in glomerocrysts. Uniformly fine grained. Gray 5 0.5-2.0 mm Round, most empty Homogeneous distribution < 5% of all voids, < 0.5 mm, empty, patchy distribution Lined by bluish smectite in dark halos. n/a Fresh. Dark alteration halos 1-2 mm wide, developed parallel to fractures bounding samples, lobate edge; bluish smectite-lined vesicles in halos. n/a Glass: None, no contacts. 109-648B-14R-1: 0-101 cm: Cement with approximately 2% basalt fragments < 4 mm. N 22.92200 -44.94708 0023.00 2330 109 648 B 015 Rotary 01 000 0034 1-10 KUE MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 2-3 0.5-3.0 mm Euhedral, fresh Olivine < 1 < 0.5 mm Subhedral, fresh Homogeneous distribution throughout unit; occur singly and in glomerocrysts. Pieces 2, 5, and 9: Glomerocrysts as large as 6 mm. Uniformly fine grained. Gray < 20% of all voids, < 0.5 mm, irregular shape, empty, patchy distribution. Pieces 2 and 5: 2%, < 1.5 mm, round, empty away from alteration halos, concentrated around edges and adjacent to plagioclase phenocryst in Piece 5. Pieces 1, 3-4, and 6-10: < 1%, < 0.5 mm, round, empty, homogeneous distribution. n/a Fresh. Piece 2: Bluish smectite in one vesicle. Pieces 2, 6, and 10: Dark alteration halos as wide as 8 mm, parallel to cracks. Piece 7: Yellow and orange clay lining vesicles and replacing mesostasis, especially along cracks; sharp boundary between altered and fresh parts of sample. Pieces 2, 6, and 10: Fracture bounded, surfaces coated by thin layer of light orange green clay. Glass; None, no contacts. N 22.92200 -44.94708 0024.00 2400 109 648 B 015 Rotary 01 074 0035 11-20 KUE MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-3 0.5-3.0 mm Euhedral, fresh Olivine <<0.5 < 0.5 mm Euhedral, fresh Homogeneous distribution throughout unit; occur singly and in glomerocrysts as large as 6 mm. Microcrystalline to fine grained (Piece 11) to fine grained (Piece 12-20), coarsening downward. Gray < 10% of all voids, < 0.5 mm, irregular and elongate shape, empty, patchy distribution. Pieces 11-15 and 19: 2-5%, < 2 mm, round, empty away from alteration halos, homogeneous distribution. Pieces 16-18, 20, and 21: 5-10%, 0.5-3.0 mm, round, often interconnected, empty away from alteration halos, homogeneous distrbution. n/a Fresh. Pieces 12-14 and 18-20: Dark alteration halo 2-5 mm wide parallel to fractures bounding samples; boundaries lobate in places; yellow orange clay/iron hydroxide mixtures along fractures, especially in Piece 14; vesicles unusally free of alteration minerals; uneven lining of iron hydroxide (?) and clay in a few vesicles directly adjoining fractures Pieces 12-14: Fractures with orange yellow clay coating, often banded. Glass: None, no contacts. N 22.92200 -44.94708 0024.00 2474 109 648 B 016 Rotary 01 000 0035 1 KUE MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-3 0.5-3.0 mm Euhedral, fresh. Olivine <<0.5 < 0.5 mm Euhedral, fresh. Homogeneous distribution; occur singly and in glomerocrysts as large as 6 mm. Fine grained. Gray 10 0.5-3.0 mm Round, often interconnected Homogeneous distribution < 10% of all voids, < 0.5 mm, irregular and elongate shape, empty, patchy distribution. Empty away from alteration halos. n/a Fresh. dark alteration halo as wide as 11 mm along one side; intense development green yellow orange iron hydroxide clay in almost all vesicles with dark alteration halo. Within and parallel to alteration halo, lined with iron hydroxide clay. Glass: None, no contacts. N 22.92200 -44.94708 0033.30 3329 109 648 B 016 Rotary 01 010 0036 2-10 KUE MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase ~3 0.5-0.4 mm Euhedral, fresh Olivine < 0.5 < 0.5 mm Euhedral, fresh Homogeneous distribution throughout unit; occur singly and in glomerocrysts as large as 5 mm. Patchy, fine grained to microcrystalline throughout unit, particularly in Piece 9. Gray <1 < 1 mm Round, empty Randomly distributed < 30% of all voids, < 0.5 mm, irregular shape, empty, patchy distribution Piece 3: Bright red iron hydroxide(?) lining part of vesicles in alteration halo. n/a Fresh. Pieces 3-6 and 9: Dark alteration halos parallel to fractures bounding samples, yellow green clay on surface(?). Piece 3: Bright red iron hydroxide(?) lining part of vesicles in halo zone. Fractured surfaces bounding pieces with dark alteration halos. Glass: None, no contacts. N 22.92200 -44.94708 0033.30 3339 109 648 B 017 Rotary 01 005 0037 2 KUE SPARSELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 1-3 mm Euhedral, fresh Olivine < 1 0.5 mm Round, fresh Homogeneous distribution; occur singly and in glomerocrysts. Fine grained. Gray <1 < 1 mm Irregular shapes Irregular distribution < 10% of all voids, < 0.5 mm, irregualr shape, empty, concentratedin horizontal bands. Empty or coated with orange clay, concentrated near one edge. n/a Fresh, patchy orange clay coating on exterior of sample , filling some vesicles. None Glass: None, no contacts. N 22.92200 -44.94708 0021.50 2155 109 648 B 017 Rotary 01 010 0038 3-7 KUE SPARSELY TO MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 2 0.5-0.4 mm Subhedral to euhedral, fresh Olivine < 1 0.5-1.0 mm Subhedral to euhedral, fresh Homogeneous distribution throughout unit; occur singly and in glomerocrysts. Microcrystalline (Pieces 3 and 7) to fine grained (Piece 5), coarsening toward center. Gray, glass is black. In Pieces 3,4,6, and 7are < 10% of all voids, 0.5-2.0 mm, irregular shapes, empty, and concentrated in bands Pieces 3-5 and 7: < 1%, < 0.5 mm, irregular shapes, empty in interior of unit, can be filled near glass margins, irregular distribution. Pieces 3 and 7: Concentrated near glassy margins, can be partially to completely filled by glass near glassy margins, yellow orange clay lines some vesicles. Piece 6: 1-3%, 1-2 mm, irregular shapes, empty, irregular distribution. n/a Fresh. Piece 3: Olive green clay coating on portions of glassy margin, yellow orange clay lining in some vesicles. None. Glass: Pieces 3 and 7: Glassy margins as thick as 3 mm, fresh, no contacts. Miaroles: In Piece 5 are approximately 75% of all voids, 0.5-3.0 mm, irregular shape , empty, and with homogeneous distribution. N 22.92200 -44.94708 0021.50 2160 109 648 B 017 Rotary 01 034 0039 8 KUE SPARSELY TO MODERATELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 2 0.5-3.0 mm Euhedral to subhedral, fresh Olivine < 1 < 0.5 mm Round to subhedral, fresh Homogeneous distribution; occur singly and in glomerocrysts. Microcrystalline to fine grained. Dark gray. 8 0.5-5.0 mm Most round,some irregularly shaped,empty Homogeneous distribution 15% of all voids. < 1.0 mm, irregular shapes, empty, homogeneous distribution. n/a Fresh, dark alteration halo 2-3 mm wide along one side of piece, side coated by yellow orange clay. None Glass: None, no contacts. N 22.92200 -44.94708 0021.50 2184 109 648 B 018 Rotary 01 000 0040 1-2 KUE SPARSELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 1-5 mm Euhedral-subhedral, fresh Olivine < 1 as large as 0.5 mm (Pieces 1A nad 1B) ,as large as 1.0 mm (Piece 2), round, fresh, associated with plagioclase in glomerocrysts also singly. Heterogeneous distribution. Pieces 1A and 1B: Concentrated in patches. Piece 2: Concentrated near top and bottom. Uniformly fine grained, with patchy microcrystalline regions in Piece 2. Gray Rare < 1 mm Round, empty n/a 75% of all voids, < 0.5 mm, irregular shape, long, bounded by crystal faces, empty, homogeneous distribution. Rare, concentrated in Pieces 1A and 1B. n/a Fresh, all pieces have alteration halos parallel to fractured surfaces, yellow green (locally orange) clay/iron hydroxides coat fractures. Piece 1A: Layered alteration halo 9 mm wide at top of sample, 2 mm-wide dark green band farthest from fracture (same type as in Pieces 1B and 2), 7 mm-wide band adjacent to fracture, speckled yellow orange appearance, intense clay/iron hydroxide alteration.See comments. Fractures with alteration halos, as above. Glass: none, no contacts. Alteration continued: Pieces 1B and 2: 3-4 mm-thick dark alteration halos (homogeneous dark green color) on bottom of Piece 1A and top of Piece 2. N 22.92200 -44.94708 0034.80 3479 109 648 B 019 Rotary 01 000 0040 1-2 KUE SPARSELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 1-4 mm Euhedral-subhedral, fresh. Occcur singly and in glomerocrysts. Olivine < 1 0.5-2.0 mm Rounded, fresh. Occur primarily in glomerocrysts with plagioclase. Heterogeneous distribution. Pieces 1A and 1B: Concentrated near sides, few phenocrysts. Pieces 2A and 2B: Concentrated near centers. Fine grained with patchy microcrystalline regions. Gray <<1 < 1 mm Round, empty Homogeneous distribution None n/a Fresh. Series of horizontal fractures with spacing of 2-3 cm on cut surface of core; fracture surfaces are fresh, no alteration. Glass: None, no contacts. N 22.92200 -44.94708 0044.20 4420 109 648 B 020 Rotary 01 000 0041 1, 3 and 5 KUE SPARSELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 1-4 mm Euhedral, fresh Olivine < 1 < 1 mm Rounded, fresh, mainly as glomerocrysts Homogeneous distribution; occur singly and in glomerocrysts. Uniformly fine grained. Gray < 10% of all voids, < 0.5 mm, round, look like vesicles with crystals projecting toward interior, empty, homogeneous distribution. Piece 1: 2-3%, 0.2-2.0 mm, r und, empty or lined by bluish smectite in alteration halos, concentrated in bands. Pieces 3 and 5: 7%, 0.5-2.5 mm, round, empty or lined by bluish smectite in alteration in halos, concentrated around edges. n/a Fresh, dark alteration halos 1-2 mm wide developed parallel to edges, bluish smectite-lined vesicles within halos. Piece 5: Contains fresh crack on edge. Glass: None, no contacts. N 22.92200 -44.94708 0047.00 4700 109 648 B 020 Rotary 01 009 0041 2, 4, and 6 KUE SPARSELY PLAGIOCLASE-OLIVINE PHYRIC BASALT n/a Plagioclase 1-2 1-3 mm Euhedral, fresh Olivine < 1 < 0.5 mm Euhedral, fresh Homogeneous distribution throughout unit; occur singly and in glomerocrysts. Pieces 2 and 6: Uniformly fine grained. Piece 4: Glassy to microcrystalline. Gray, glass is black. 1 < 1 mm Round to irregular, empty Homogeneous distribution 25% of all voids, < 0.5 mm, irregular, empty, homogeneous distribution. n/a Fresh, Piece 2: Dark alteration halo 1-2 mm wide on part of margin. Pieces 4 and 6: Green coating on outer surfaces. Piece 6: Fracture through part of sample. Glass: Piece 4: Small amount of glass on edge, fresh, no contacts. Pieces 2 and 6: None, no contacts. N 22.92200 -44.94708 0047.00 4709