60456 16 1 01500 133.50 133.50 135.00 NAT 48 1 L APHYRIC BASALT; 2 L PILLOW; 3 N PCE 1 (3-5), 2 (8-13), 3 (16-18), 4 (21-28), 4 N 5 (32-35), 6 (38-39), 7A (41-47), 7B (47-55), 5 N 7C (55-61), 7D (62-66), 7E (67-72), 8 (75-77), 6 N 9 (80-82), 10A (85-91), 10B (91-96), 10C (96-98), 7 N 10D (101-103), 10E (104-114), 11 (116-119), 8 N 12 (121-124), 13 (126-129), 14 (132-135), 9 N 15 (138-144), 16 (147-150); 10 T APHYRIC, EXTENSIVELY HYDROTHERMALLY ALTERED PILLOW 11 T BASALTS WITH INCLUSIONS OR INTERBEDS OF ALTERED 12 T SEDIMENTS INCLUDING LIMESTONES; 13 S MORE ALTERED ZONES ARE TYPICALLY NEAR PILLOW MARGINS 14 S AND THERE ARE PILLOW RINDS PRESENT IN TOP OF PCE 4 15 S AND 10A AND NEAR THE BOTTOM OF PCES 7E AND 8, CRACKS 16 S IN PCES 7B AND 10C ARE FILLED WITH DARK BROWNISH 17 S GREY MATERIAL, VEIN IN PCE 7B FILLED WITH FE-MN.OX; 18 A EXT 19 A % PCES 2-3 AND 7A-B AND 7D-10C AND 11-16; 20 A MOD 21 A % REST OF SECTION, EXTENSIVELY HYDROTHERMALLY 22 A % ALTERED, IN PCES 12 AND 15-16 FRAGMENTED GLASS HAS 23 A % CONCENTRIC ALTERATION RINDS WITH GREEN OUTSIDE AND 24 A % PALE GREEN INSIDE; 25 O DARK GREENISH GREY (5G4/1) ALTERED BASALTS WITH MORE 26 O EXTENSIVELY ALTERED GREENISH GREY (5G6/1) OR LIGHT 27 O BLUISH-GREENISH GREY (5GB6.5/1) FRAGMENTS OR ZONES, 28 O NEAR MARGINS OF PILLOWS DARKER GREEN ALTERED 29 O SPHERULITIC ZONES OCCUR NEXT TO GREYISH BLUE GREEN 30 O (5BG5/2) ALTERED FRAGMENTED FORMER GLASS, PCE 10B 31 O HAS NO ORIENTATION, PCE 1 IS A BOTTLE FILLED WITH 32 O SOFT BROWNISH GREY (5YR4/1) MUD SCRAPED FROM TOP OF 33 O PCE 2, PCE 2 IS LIGHT BROWNISH GREY (10YR6/2) 34 O FORAM(?) LIMESTONE WITH LITTLE HOLES LINED WITH 35 O LIGHT GREENISH GREY CLAYS, PCE 3 IS REXTLZED POROUS 36 O LIMESTONE, PCES 7A-B HAVE INCORPORATED LIMESTONE, 37 O PCE 9 IS A CHERT; 38 V % THE PALER ALTERED ZONES IN THE BASALTS ARE RICH 39 V % IN CALCITE IN THE VESICLES; 40 R CALCITE 41 R CLAY.MIN 42 R FE.OXIDE 43 R MN.OXIDE 44 R % BOTH OXIDE MINERALS PRESENT IN REDDISH AND BLACK 45 R % FORMS IN VEIN IN PCE 7B; 46 R PYRITE 47 R % AS FLECKS IN DARK GREEN ZONES; 48 60456 16 2 01420 133.50 135.00 136.42 NAT 30 1 L APHYRIC BASALT; 2 L PILLOW; 3 N PCE 1A (2-13), 1B (13-19), 2 (22-30), 4 (41-43), 4 N 5 (46-49), 6 (52-59), 7 (62-66), 8 (68-75), 5 N 9 (78-82), 10A (85-90), 10B (91-96), 10C (96-107), 6 N 11 (110-114), 12 (116-118), 13 (120-123), 7 N 14 (125-129), 15 (132-137), 16 (140-142); 8 T APHYRIC, EXTENSIVELY HYDROTHERMALLY ALTERED PILLOW 9 T BASALTS, MINERALOGICALLY AND TEXTURALLY SIMILAR TO 10 T PREVIOUS SECTION, TOP OF PCE 1 HAS AN ALTERED GLASS 11 T RIND; 12 S PILLOW MARGINS PRESENT, CRACKS ARE FILLED WITH CARB, 13 S NO DARK CRACK FILLINGS LIKE SECTION 1, PCE 15 HAS 14 S FRACTURE SURFACE WITH FE.OXIDE PRESENT; 15 A MOD 16 A % PCES 2 AND 10B-15; 17 A EXT 18 A % REST OF SECTION, EXTENSIVE ALTERATION FROM 19 A % HYDROTHERMAL ACTIVITY; 20 O NO LIMESTONE PRESENT AS IN PREVIOUS SECTION, PEBBLES 21 O MAKE UP PCES 6 AND 8; 22 V % PCES 12-15 ARE MORE VESICULAR THAN 1-11, VESICLES 23 V % IN PCE 15 ARE NOT ALL FILLED WITH CARB--ONLY MINOR 24 V % CLAY.MIN IN MANY, VUGS ARE FILLED WITH CALCITE; 25 R CALCITE 26 R CLAY.MIN 27 R FE.OXIDE 28 R PYRITE 29 R % DARK GREEN ZONES FLECKED WITH PYRITE; 30 60456 17 1 0 990 143.00 143.00 143.99 NAT 32 1 L APHYRIC BASALT; 2 L PILLOW; 3 N PCE 1 (3-6), 2 (8-12), 3 (14-18), 4 (20-23), 4 N 5 (26-28), 6 (31-32), 7 (34-37), 8 (40-43), 5 N 9 (46-51), 10 (55-57), 11 (60-67), 12 (70-75), 6 N 13 (78-81), 14 (84-92), 15 (95-99); 7 T APHYRIC, HYDROTHERMALLY ALTERED PILLOW BASALTS AND 8 T MINOR FE-MN HYDROGENOUS SEDIMENTS, FINE GRAINED, 9 T PCES 1+9+12 HAVE DARK GREY GREEN ALTERED GLASSY 10 T RINDS, EXTENSIVE BLEACHED ZONES NEXT TO RINDS IN 11 T THIS CORE ABSENT (UNLIKE CORE 16), NO ORIENTED 12 T SAMPLES; 13 S PCE 9 IS A TRIANGULAR SHAPED PILLOW FRAGMENT 14 S SURROUNDED BY ALTERED GLASSY BRECCIA AND RIDDLED 15 S WITH BLACK MN MATERIAL ON ONE SIDE; 16 A EXT 17 A % PCES 1-2+11; 18 A MOD 19 A % REST OF SECTION, EXTENSIVE ALTERATION FROM 20 A % HYDROTHERMAL ACTIVITY; 21 O BASALT IS DARK GREENISH GREY (5G4/1), PCE 14 22 O CONSISTS OF TWO TYPES OF CLAY RICH SEDIMENTS STUCK 23 O TOGETHER WITH ONE BEING DARK GREY AND HARD AND THE 24 O OTHER BEING SOFTER AND REDDER, IT IS POSSIBLE THAT 25 O THESE WERE HYDROGENOUS DEPOSITS THAT WERE LATER 26 O ALTERED, SOME SECTIONS ARE AN OLIVE COLOR (5Y4/3); 27 V % CARB IS A MINOR FILLER IN THE VESICLES IN THIS 28 V % CORE; 29 R CARB 30 R FE.OXIDE 31 R MN.OXIDE 32 60456 18 1 0 910 152.50 152.50 153.41 NAT 25 1 L APHYRIC BASALT; 2 L PILLOW; 3 N PCE 1 (4-12), 2 (15-19), 3 (24-32), 4 (36-42), 4 N 5 (45-55), 6 (58-65), 7 (68-74), 8 (76-84), 5 N 9 (87-91); 6 T APHYRIC, PCES 3+5-6 ARE COARSER GRAINED THAN 1-2, 7 T FROM PCE 7 DOWNWARD GRAIN SIZE IS FINER AND ABOUT 8 T THE SAME AS PCES 2-3, PCE 2 HAS SUB-SPHERULITIC 9 T PLAG, PCE 5 IS MICROLITIC, MOST VERY FINE GRAINED; 10 S THIS SEQUENCE POSSIBLY REPRESENTING MOST OF ONE 11 S LARGE ALTERED PILLOW; 12 A EXT 13 A % EXTENSIVE WHERE OXIDIZING CONDITIONS PRESENT; 14 O PCES 1-2 ARE GREYISH BROWN (2.5Y5/2) TO LIGHT OLIVE 15 O BROWN (2.5Y5/4), PCES 3-9 ARE DARKER OLIVE GREY 16 O (5Y5/2) AND TINTED A LOT BROWNER, ORANGE FE.HYDRX 17 O MATERIAL ON EXTERIOR SURFACES OF PCES 3+5, REDDER 18 O MATERIAL ON PCE 6 ALONG WITH MN.OXIDE AND CALCITE, 19 O PEBBLES MAKE UP PCES 4+8; 20 V % PCE 3 IS VESICULAR, PCES 5-6 HAVE ONLY A FEW TINY 21 V % VESICLES, MINOR CARB IS IN VESICLES OF PCE 3; 22 R CALCITE 23 R FE.HYDRX 24 R MN.OXIDE 25 60456 19 1 0 720 161.50 161.50 162.22 NAT 23 1 L APHYRIC TO PLAG SPARSELY PHYRIC BASALT; 2 L PILLOW; 3 N PCE 1 (4-6), 2 (9-17), 3 (20-23), 4 (27-30), 4 N 5 (32-39), 6 (42-45), 7 (48-50), 8 (51-56), 5 N 9 (58-60), 10 (63-66), 11 (69-72); 6 T APHYRIC TO PLAG SPARSELY PHYRIC, PCES 1+2+4+5+9+10 7 T ARE VERY FINE GRAINED, ALL OTHER PCES ARE MICROLITIC 8 T AND PCE 11 HAS FRESH GLASS; 9 S MINOR FE.HYDRX APPEARS ON FRACTURE SURFACES, THERE 10 S ARE A MINIMUM OF TWO COOLING UNITS REPRESENTED, PCES 11 S 2+6-8 COULD BE COARSER INTERIORS OF THESE COOLING 12 S UNITS; 13 A SLIGHTLY 14 A % ALL BUT PCES 1+3 HAVE BROWN OXIDIZED APPEARANCES; 15 O A THIN ORANGE STREAK APPEARS ON THE SIDE OF PCE 5; 16 V 1-2 <5 17 V % PCES 1-3+10, NO CALCITE IN VESICLES OR VUGS; 18 P % PCES 2+4+5+7+8 HAVE RARE PLAG PHENOS AND 19 P % GLOMEROCRYSTS; 20 R FE.HYDRX 21 R PALAG GLASS 22 R % PCE 11; 23