leg site hole core section top interval depth(cm) top of core depth(cm) top of section(m) sample midpoint depth(m) describer rock name piece numbers texture data structure data alteration data other information data vesicle data phenocryst data groundmass mineral data replacement mineral data comments unknown code 64 474 A 39 3 0.0 515.00 518.00 519.12 SAUNDERS, A. SEDIMENT 64 474 A 39 3 112.0 515.00 519.12 519.42 SAUNDERS, A. SEDIMENT (SANDSTONE) 64 474 A 39 3 140.0 515.00 519.40 519.50 SAUNDERS, A. APHYRIC BASALT PCES 1A (140-145), 1B (144-150) APHYRIC,DISTINCT GLASSY CHILL AGAINST SANDSTONE 1MM CALCITE VEIN & 5MM CALCITE VUG comments : 5MM CALCITE VUG CALCITE 64 474 A 39 4 0.0 515.00 519.50 520.67 SAUNDERS, A. DOLERITE PCES 1 (1-3), 2 (3-10), 3 (11-17), 4 (18-23), 5 (23-35), 6 (36-46), 7 (47-60), 8 (62-75), 9 (76-78), 10 (80-84), 11A (85-93), 11B (89-98), 12 (99-117) FINE-TO-MEDIUM-GRAINED,EQUIGRANULAR 1-2MM WIDE CALC.CARB VEINS IN PCES 2-3 MOD PCES 1-3 | FRESH PCES 4-12 PCE 12 MARKS END OF CORE CARB comments : CALC.CARB FILLS VEINS 64 474 A 40 1 0.0 524.50 524.50 526.00 SAUNDERS, A. DOLERITE PCES 1A (0-20), 1B (19-38), 1C (37-51), 2A (53-65), 2B (65-79), 2C (80-87), 2D (86-91), 3 (90-93), 4A (94-121), 4B (119-130), 4C (129-138), 4D (138-142), 4E (140-150) DOMINANTLY EQUIGRANULAR DOLERITE,MORE PLAG XTLS (TO 1MM) IN LOWER PORTION OF SECTION (140-150MM) NON-VESICULAR,SEVERELY VEINED BY CALCITE IN INTERVAL 120-150CM,MINOR CALCITE VEINS RUN THROUGHOUT MOD INTERVALS 15-20+20-45+53-56+75-95CM | FRESH INTERVALS 0-15+20-45+50-53+56-75+95-120CM | EXTENSIVELY PCES 4B-4E 0 PLAG TO 1 comments : MORE PHENOS OCCUR IN LOWER PART OF SECTION(140-150CM) CALCITE 64 474 A 40 2 0.0 524.50 526.00 527.19 SAUNDERS, A. DOLERITE PCES 1 (0-3), 2 (4-7), 3A (7-13), 3B (13-20), 3C (21-30), 3D (30-37), 3E (37-41), 3F (41-48), 3G (44-47), 3H (48-56), 3I (55-60), 3J (61-80), 3K (80-90), 3L (90-98), 4 (10-110), 5A (111-119) MAINLY EQUIGRANULAR,MEDIUM-GRAINED,CHILLED(?) (NOT GLASSY) MARGIN PCE 5B INTENSE VEINING(MAINLY CALC.CARB) WITH 1-5MM WIDE VEINS,PCE 5B SANDSTONE(120-127CM) MOD ALTERED OL PHENOS IN RANDOM CONCENTRATIONS IN INTERVALS 16-98+104-107+113-116CM DARK GRAY COLOR OL TO 2 comments : ALTERED OL PHENOS IN RANDOM CONCENTRATIONSTHROUGHOUT INTERVALS 16-98+104-107+113-116CM CARB comments : CALC.CARB VEINS 64 474 A 40 2 120.0 524.50 527.20 527.27 SAUNDERS, A. SEDIMENT (SANDSTONE) PCE 5B (120-127) COUNTRY ROCK SANDSTONE SIMILAR TO THAT AT UPPER CONTACT EXCEPT THAT SANDSTONE IS BAKED AT LOWER CONTACT AT ABOUT 121CM 64 474 A 40 2 127.0 524.50 527.27 527.50 SAUNDERS, A. SEDIMENT 64 474 A 41 5 0.0 534.00 540.00 541.28 FORNARI, D. SEDIMENT 64 474 A 41 5 128.0 534.00 541.28 541.50 FORNARI, D. DOLERITE PCES 1A (128-132), 1B (129-132), 1C (132-138), 2 (136-140), 3 (140-144), 4 (144-150) BAKED CONTACT BETWEEN OVERLYING SEDIMENT & DOLERITE AT 128-129CM,SILL CONTACT IS CHILLED(TO 2MM) & GRAINSIZE DECREASES FROM CONTACT WHERE IT IS OL PHYRIC(1MM GRAINS) TO MORE FINE-GRAINED AT ABOUT 145CM,145-150CM DOLERITE IS EQUIGRANULAR TO APHYRIC LARGE(8MM) CALCITE VEIN OCCURS BETWEEN 131-132CM MOD INTERVAL 128-133CM | FRESH INTERVAL 133-150CM CALCITE 64 474 A 41 6 0.0 534.00 541.50 541.92 FORNARI, D. DOLERITE PCES 1 (0-4), 2 (7-13), 3 (16-24), 4A (26-30), 4B (26-31), 5 (35-42) EQUIGRANULAR SHOWING SOME TENDENCY TOWARDS ALTERED OL-PHYRIC CLOSE TO VEINS LARGE 1.2CM THICK CALCITE VEIN CUTS ACROSS PCE 1 CALCITE 64 474 A 42 1 0.0 543.50 543.50 545.00 GUERRERO, J. DOLERITE PCES 1A (0-14), 1B (13-20), 1C (20-26), 1D (26-33), 1E (33-39), 1F (39-46), 1G (44-49), 1H (49-53), 1I (49-52), 1J (53-55), 1K (53-60), 2A (61-69), 2B (67-71), 2C (71-75), 2D (75-87), 2E (76-85), 3A (88-91), 3B (88-91), 4A (92-99), 4B (92-99), 5A (100-105), 5B (100-104), 6A (105-111), 6B (105-110), 7 (112-118), 8A (120-126), 8B (126-133), 9 (135-138), 10A (139-145), 10B (141-147) FINE-GRAINED EQUIGRANULAR FOR MOST OF SECTION CALCITE-EPID(?) VEINS,VEINS SUB-VERTICAL WITH MAXIMUM WIDTH OF 1CM,VEINING OCCURS IN INTERVALS 31-110+139-146CM FRESH INTERVALS 0-30+113-140CM | MOD DARK GREEN PHENOS OCCURRING IN RANDOM ORIENTATION FROM 40-118CM IN VICINITY OF CALCITE-EPID(?) VEINS CALCITE | EPID comments : ID EPID IN VEINS UNCERTAIN 64 474 A 42 2 0.0 543.50 545.00 546.50 GUERRERO, J. DOLERITE PCES 1 (0-4), 2A (6-11), 2B (6-13), 3A (14-20), 3B (20-23), 4A (26-29), 4B (30-35), 4C (30-35), 4D (36-42), 5 (44-51), 6 (52-58), 7A (60-64), 7B (60-65), 8A (65-71), 8B (66-67), 8C (66-74), 9A (76-83), 9B (75-83), 9C (83-94), 9D (95-101), 9E (101-104), 9F (106-112), 9G (113-119), 9H (119-126), 9I (123-126), 9J (126-134), 9K (134-145), 10 (146-148) FINE-GRAINED EQUIGRANULAR CALCITE VEINS CUT IN VERTICAL TRENDS,92-134CM VARIOLITIC CAVITIES FILLED WITH RADIAL FIBROUS ZEOL(?) MATERIAL MOD ALTERED OL PHENOS AT 21-23+73-82CM DARK GRAY COLOR OL comments : ALTERED AT 21-23+73-82CM CALCITE | ZEOL comments : ID ZEOL UNCERTAIN | QTZ comments : ID QTZ UNCERTAIN IN PCE 1 64 474 A 42 3 0.0 543.50 546.50 547.90 GUERRERO, J. DOLERITE PCES 1A (0-3), 1B (0-3), 2 (5-14), 3 (15-19), 4A (20-26), 4B (26-33), 5A (35-40), 5B (40-49), 5C (50-68), 5D (58-73), 5E (71-73), 5F (74-90), 5G (91-97), 6A (99-104), 6B (100-104), 7 (105-115), 8A (116-120), 8B (116-122), 8C (118-123), 8D (122-124), 8E (121-124), 9A (126-135), 9B (135-140) FINE-GRAINED,EQUIGRANULAR,HOMOGENEOUS ALMOST NO CALCITE VEINING MOD RK GRAY COLOR CALCITE,ZEOL comments : 35-75CM SOME VESICLES FILLED & ID ZEOL UNCERTAIN CALCITE | ZEOL comments : ID ZEOL UNCERTAIN 64 474 A 42 4 0.0 543.50 548.00 549.45 GUERRERO, J. DOLERITE PCES 1A (2-7), 1B (0-7), 1C (7-12), 1D (7-13), 1E (12-21), 1F (21-49), 1G (49-75), 1H (73-76), 1I (75-93), 1J (91-99), 1K (95-99), 1L (99-115), 2A (116-125), 2B (125), 2C (125-131), 2D (128-131), 2E (131-141) FINE-GRAINED EQUIGRANULAR,APHYRIC,VERY MASSIVE & HOMOGENEOUS FEW CALCITE VEINS FRESH RK GRAY COLOR comments : NO VUGS VISIBLE CALCITE 64 474 A 42 5 0.0 543.50 549.50 550.50 GUERRERO, J. DOLERITE PCES 1A (0-12), 1B (4-12), 1C (12-14), 2 (15-27), 3A (30-31), 3B (30-37), 3C (32-41), 4A (43-46), 4B (44-47), 4C (46-48), 5 (50-54), 6A (56-57), 6B (56-59), 7 (61-67), 8 (70-74), 9A (76-78), 9B (78-81), 10A (83-87), 10B (88-90), 10C (87-90), 11 (92-100) FINE-GRAINED EQUIGRANULAR,HOMOGENOUS MASSIVE,SOME CALCITE VEINING TO 1MM THICK MOD PCES 1A-1C | FRESH PCES 2-11 DARK GRAY COLOR CALCITE 64 474 A 43 1 0.0 553.00 553.00 553.30 SAUNDERS, A. CLAYSTONE 64 474 A 43 1 30.0 553.00 553.30 554.50 SAUNDERS, A. DOLERITE PCES 1 (4-8), 2A (10-14), 2B (14-23), 2C (18-26), 2D (23-28), 2E (29-40), 2F (39-43), 2G (43-45), 2H (43-50), 3 (51-60), 4A (62-71), 4B (69-75), 4C (75-80), 4D (80-88), 4E (88-93), 4F (88-93), 4G (93-100), 4H (98-105), 4I (105-113), 4J (111-121), 4K (120-129), 4L (129-138), 5A (140-148), 5B (142-149) SIMILAR TEXTURE & COMPOSITION TO CORE 42-1, ESSENTIALY EQUIGRANULAR CALCITE VEINING HAS CAUSED CONSIDERABLE BREAKUP OF DOLERITE IN 93-97CM,FRACTURING OF DOLERITE COMMON RESULTING IN MANY SMALL FRAGMENTS IN 24-29+64-70+ 81-87CM,SLICKENSLIDES SEEN IN FRACTURES AROUND 10-28CM MOD PCES 1-2D+4A+4D-4G+4K | FRESH PCES 2E-3+4B-4C+4H-4J+4L-5B GRAY COLOR <1 RARE CALCITE comments : INTERVAL 105-150CM OL 10 <1 comments : GREEN ALTERED PHENOS(?),ID PHENOS INTERVALS32-78+105-150CM CALCITE 64 474 A 43 2 0.0 553.00 554.50 556.00 SAUNDERS, A. DOLERITE PCES 1A (1-11), 1B (11-25), 1C (20-23), 1D (24-31), 1E (24-28), 1F (25-34), 1G (34-39), 1H (34-39), 1I (38-40), 1J (41-49), 1K (39-57), 1L (50-57), 2 (59-61), 3A (63-75), 3B (75-85), 4A (86-88), 4B (86-91), 4C (89-95), 4D (95-98), 4E (97-100), 5A (101-114), 5B (112-125), 6 (127-132), 7A (133-142), 7B (143-149) EQUIGRANULAR GREEN XTLS NOTED IN PREVIOUS SECTIONS ARE MORE ROUNDED & MAY BE OL-REPLACED-BY-CLAY PSEUDOMORPHS, PCES 1B-1C AT 12-25CM & PCES 1J-1L AT 40-55CM HAVE 1-3MM WIDE VEIN SUB-PARALLEL TO CORE LINER,VEIN IS COMPRISED OF DARK CRYPTOXTLLINE MATERIAL POSSIBLY ALTERED GLASS(CLAY.MINS?) & WITH ACCESSORY PYR MOD INTERVAL 30-40CM | FRESH RK GRAY COLOR 1 CALCITE,SMEC comments : OCCASIONAL OCCURRENCE OL comments : OL ALTERED TO CLAY,ROUNDED CALCITE | SMEC | CLAY 1OL | PYR 64 474 A 43 3 0.0 553.00 556.00 557.45 SAUNDERS, A. DOLERITE PCES 1 (3-7), 2 (10-25), 3A (26-29), 3B (27-29), 4A (31-39), 4B (31-39), 5A (40-42), 5B (42-56), 5C (56-64), 6 (65-72), 7A (73-76), 7B (76-87), 8 (89-99), 9 (102-108) 10A (109-111), 10B (109-122), 10C (114-121), 10D (122-127), 10E (127-133), 10F (128-133), 10G (133-139), 10H (139-145) EQUIGRANULAR,MEDIUM-GRAINED RARE CALCITE VEINS IN PCES 2+4+8,COMPOSITE VEINS IN PCES 10A-10D ARE COMPRISED OF CALCITE & DARK UNIDENT MATERIAL(SIMILAR TO CORE 43-2 INTERVALS 12-25+ 40-55CM) WITH PYR FRESH D PCES 4A-5A+9+10H DARK GRAY COLOR OL comments : SPORADIC PHENOS OF ALTERED OL CALCITE | PYR | UNIDENT comments : DARK MATERIAL IN VEINS OF PCES 10A-10D 64 474 A 43 4 0.0 553.00 557.50 558.15 SAUNDERS, A. DOLERITE PCES 1A (1-14), 1B (6-17), 1C (15-21), 1D (15-24), 2A (26-32), 2B (31-39), 2C (34-39), 3A (40-44), 3B (40-45), 3C (42-50), 4A (52-60), 4B (55-63), 4C (60-63) MEDIUM-GRAINED EQUIGRANULAR FRESH RK GRAY COLOR WITH OCCASIONAL GREEN CLAY TCHES(?) AFTER OL OL comments : TABLOID XTLS CLEARLY VISIBLE CLAY comments : GREEN CLAY PATCHES AFTER OL 64 474 A 44 1 0.0 562.50 562.50 564.00 SAUNDERS, A. PLAG SPARSELY PHYRIC BASALT PCES 1A (1-10), 1B (10-14), 2 (15-23), 3 (24-28), 4 (29-32), 5 (32-38), 6 (39-44), 7A (45-50), 7B (47-52), 7C (50-55), 8A (56-61), 8B (60-69), 9A (70-74), 9B (72-75), 9C (73-76), 10A (77-83), 10B (82-91), 10C (89-93), 11A (94-99), 11B (94-99), 12A (100-110), 12B (109-114), 12C (114-117), 12D (114-117), 12E (116-117), 12F (118-123), 12G (118-123), 12H (124-129), 12I (124-126), 12J (126-131), 12K (129-141), 13 (143-148) 0-43CM APHANITIC BASALT IN BRECCIATED MIXTURE OF COARSE BASALT & BAKED BROWN SEDIMENT,SECTION GRADES DOWNWARD INTO FRESHER FINE-GRAINED BASALT FRACTURED,CALCITE VEINS(1MM WIDE) EXTENSIVELY 0-43CM,43-60CM INTERMEDIATE BETWEEN EXTENSIVELY & MOD | MOD 60-150CM MEDIUM-GRAY COLOR 0-43CM,43-150CM GRAY COLOR PLAG 2 TO 2 comments : OCCASIONAL & AS PLAG-OL GLOMEROCRYSTS TO 2MM INCOARSE BASALT | OL comments : GLOMEROCRYSTS OF PLAG-OL TO 2MM IN COARSE BASALT CALCITE 64 474 A 44 2 0.0 562.50 564.00 564.11 SAUNDERS, A. PLAG-OL SPARSELY PHYRIC BASALT PCE 1A & 1B (0-11) APHANITIC, SPARSELY PHYRIC, BAKED MUDSTONE SELVAGE VEINS FILLED WITH GREEN CLAY MOD CONTINUATION OF BASALT IN CORE 44-1, DARK GREEN COLOR PLAG comments : OCCASIONAL MICROPHENOS | OL comments : ID UNCERTAIN CLAY 64 474 A 44 2 11.0 562.50 564.11 565.16 SAUNDERS, A. PLAG-OL MODERATELY PHYRIC BASALT PCE 2 (12-15), 3 (16-20), 4 (22-24), 5 (25-31), 6 (32-42), 7A (43-46), 7B (45-50), 8A (52-59), 8B (59-62), 8C (61-67), 9 (69-73), 10 (75-79), 11 (81-85), 12 (86-89), 13 (90-92), 14A (92-101), 14B (101-107), 14C (107-118), 14D (115-118) APHANITIC, MODERATELY PHYRIC, GLASSY SELVAGE ON PCE 6, BAKED MUDSTONE SELVAGE ON PCE 7A SLICKENSIDES(?) ON PCE 14C & 14D, VEINS FILLED WITH GREEN CLAY ON PCES 7 & 14 FRESH D PCES 7 & 14 COLOR LIGHT TO MEDIUM GRAY PLAG TO 5 comments : XENOCRYSTS TO 5MM IN DIAMETER, ALSO OCCASIONALPLAG MICROPHENOS | OL CLAY 64 474 A 44 2 116.0 562.50 565.16 565.40 SAUNDERS, A. PLAG-OL MODERATELY PHYRIC BASALT PCES 15 (119-121), 16 (122-125), 17 (126-135), 18 (135-138) FINE-GRAINED,MODERATELY PHYRIC, GLASSY SELVAGE AT 119CM SLICKENSIDES(?) PCES 15-17 MOD PCES 15-17 | FRESH CE 18 DARK GREY COLOR <<1 20 CLAY comments : GREEN CLAY PLAG comments : XENOCRYSTS STILL PRESENT | OL 64 474 A 44 3 0.0 562.50 565.50 566.80 SAUNDERS, A. PLAG PHYRIC BASALT PCES 1A (1-7), 1B (6-13), 2 (15-18), 3 (20-24), 4 (25-28), 5A (30-35), 5B (34-41), 5C (41-48), 5D (48-52), 5E (52-59), 5F (58-64), 5G (64-70), 5H (69-73), 6A (74-79), 6B (74-82), 7 (84-86), 8 (88-90), 9 (91-98), 10A (99-110), 10B (108-114), 10C (114-117), 10D (113-118), 10E (118-123), 10F (119-125), 11A (126-130), 11B (127-130) 0-98CM FINE-GRAINED,29-98CM APHANITIC,99-132CM FINE- TO-MEDIUM-GRAINED PCES 5E-9 AMYGDULE FREE SLIGHTLY PCES 1A-5A+10A-11B | FRESH PCES 5B-9 0-28+99-130CM DARK GRAY COLOR,29-98CM GRAY COLOR, BAKED MUDSTONE SELVAGE IN PCE 3 20 CLAY.MIN,CALCITE comments : PCES 1A-4 | CHLOR comments : GREEN CLAY.MIN POSSIBLY CHLOR PLAG 10 | OL TO 6 comments : ID OL UNCERTAIN,PCES 10A-11B CALCITE | CLAY.MIN comments : GREEN CLAY.MIN POSSIBLY CHLOR 64 474 A 44 4 0.0 562.50 567.00 568.50 FORNARI, D. PLAG PHYRIC BASALT PCES 1A (0-5), 1B (5-14), 1C (14-18), 1D (13-27), 1E (27-30), 2A (32-36), 2B (37-40), 3A (42-44), 3B (42-44), 3C (45-47), 4 (48-55), 5 (57-63), 6A (65-68), 6B (66-68), 7 (70-78), 8 (80-86), 9A (87-90), 9B (90-91), 9C (90-91), 9D (90-91), 10 (93-103), 11A (105-109), 11B (107-109), 12 (111-130), 13 (132-136), 14A (138-145), 14B (140-146) PHYRIC,EQUIGRANULAR,UNIFORM TEXTURE THROUGHOUT SLIGHTLY FRACTURED WTIH SMALL CALCITE VEINS MOD 10-17CM,SMALL ALTERATION ZONE AT 15CM MEDIUM GRAY BASALT,BAKED SEDIMENT CONTACT AT PCE 14A ON TOP & SIDE WITH CONCHOIDAL FRACTURES & GREASY TO THE TOUCH TO 2 CLAY.MIN comments : 0-4CM VESICLES FILLED WITH GREEN CLAY.MIN,PCES 1A- 1B+2B+4 | <1 CALCITE comments : FEW SMALL VESICLES PLAG 1-2 comments : PCES 1A-1B+1D-2B+4-5+7-8+10-12+14A | PLAG TO 4 comments : 14-15CM CALCITE | CLAY.MIN 64 474 A 44 5 0.0 562.50 568.50 569.75 FORNARI, D. BASALT PCES 1 (1-6), 2 (8-12), 3A (13-19), 3B (15-20), 4 (22-27), 5 (28-30), 6A (32-36), 6B (34-41), 7A (42-50), 7B (50-55), 8 (57-64), 9 (65-69), 10A (71-72), 10B (71-72), 10C (73-75), 11 (76-83), 12 (85-94), 13 (95-100), 14A (102-110), 14B (105-110), 14C (111-114), 14D (110-122) APHANITIC TO SLIGHTLY COARSER-GRAINED,EQUIGRANULAR- FINE AT 0-70CM BECOMING COARSER-GRAINED 70-125CM CALCITE VEINS,LARGE CALCITE VEINS IN PCES 11+14A- 14D FRESH D PCES 10A-10C,SLIGHT ALTERATION NEAR VEINS BASALT MEDIUM GRAY COLOR PLAG comments : PCES 9+11-12+14D CALCITE 64 474 A 45 1 .5 572.00 572.01 573.45 GUERRERO, J. APHYRIC BASALT PCES 1 (5-40), 2A (41-55), 2B (54-55), 2C (55-71), 2D (60-90), 2E (88-109), 2F (110-118), 2G (118-123), 2H (122-128), 2I (117-135), 2J (128-132), 2K (133-138), 3 (140-141) EQUIGRANULAR,FINE-GRAINED PCES 1+2C-2D+2G-2K CALCITE-GREEN CLAY(?) VEINING(TO 5MM THICK) FRESH EXCEPT FOR VEINING | SLIGHTLY 10-22+55-73+107-140CM DARK GRAY COLOR comments : NO CALCITE-CHLORITE VESICLES PRESENT PLAG comments : GLOMEROCRYSTS IN 75-120CM INTERVAL CALCITE | CLAY.MIN comments : ID GREEN CLAY.MIN UNCERTAIN POSSIBLY EPID 64 474 A 45 1 0.0 572.00 572.00 572.03 GUERRERO, J. SEDIMENT (CLAYSTONE) PCE NO PCE NUMBER ASSIGNED 0-3CM,FINE-GRAINED,OLIVE-GRAY(NN14) 64 474 A 45 2 0.0 572.00 573.50 575.00 GUERRERO, J. PLAG GLOMEROPHYRIC BASALT PCES 1 (0-30), 2A (32-45), 2B (45-64), 2C (62-65), 3 (67-85), 4A (87-112), 4B (111-112), 4C (112-125), 5 (131-150) MEDIUM-TO-FINE-GRAINED BECOMING COARSER TOWARD THE BASE OF SECTION,100-140CM EQUIGRANULAR,GLOMEROPHYRIC CALCITE-GREEN CLAY(?) VEINS(TO 2MM WIDE) IN PCES 1+2B-2C+4A-4B FRESH ALTERATION ONLY IN VEINS PLAG comments : GLOMEROCRYSTS THROUGHOUT,MICROPHENOS 100-140CMINTERVAL CALCITE | CLAY.MIN comments : ID GREEN CLAY.MIN UNCERTAIN POSSIBLY EPID 64 474 A 45 3 0.0 572.00 575.00 576.45 GUERRERO, J. APHYRIC BASALT PCES 1A (0-10), 1B (10-20), 1C (20-36), 1D (34-48), 1E (48-51), 1F (50-73), 2A (75-90), 2B (90-106), 2C (107-124), 3 (126-144) MEDIUM-TO-FINE-GRAINED,APHYRIC CRACKS IN PCES 1C+1D,PCE 3 HAS GREEN CLAY-CHLOR(?) VEIN FRESH ALTERATION RESTRICTED TO SOME CRACKS IN PCES 1C+1D DARK GRAY BASALT PLAG TO 3 comments : LATHS,SOME GLOMEROCRYSTS THROUGHOUT CLAY.MIN comments : ID GREEN CLAY.MIN UNCERTAIN POSSIBLY CHLOR 64 474 A 45 4 0.0 572.00 576.50 577.90 GUERRERO, J. PLAG PHYRIC DOLERITE PCES 1A (0-18), 1B (18-31), 1C (30-35), 1D (35-38) 1E (39-42), 2 (45-47), 3A (48-60), 3B (60-73), 3C (73-80), 3D (80-90), 3E (90-100), 4 (103-108), 5 (109-113), 6 (114-118), 7 (119-128), 8 (129-137) MEDIUM-TO-FINE-GRAINED,PHYRIC CALCITE-GREEN CLAY(?) VEINS RESTRICTED TO 30-40+ 120-138CM FRESH NO ALTERATION EXCEPT FOR VEINS DARK GRAY BASALT 0 PLAG TO 3 comments : LATHS,GLOMEROCRYSTS PRESENT THROUGHOUT CALCITE | CLAY.MIN comments : ID GREEN CLAY.MIN UNCERTAIN POSSIBLY CHLOR 64 474 A 45 5 0.0 572.00 578.00 579.50 GUERRERO, J. APHYRIC BASALT PCES 1 (1-7), 2 (9-15), 3 (17-20), 4 (22-28), 5 (30-35), 6A (37-51), 6B (50-59), 6C (59-60) 7 (62-64), 8A (67-71), 8B (70-71), 9 (72-89), 10A (90-106), 10B (106-126), 10C (127-150) SIMILAR TO CORE 45-4,MEDIUM-TO-FINE-GRAINED,PHYRIC FEW CALCITE VEINS IN PCES 6A-6B FRESH ALTERATION ONLY ALONG VEINS IN PCES 6A-6B DARK-GRAY BASALT comments : NO VUGS PRESENT PLAG TO 4 comments : LATHS CALCITE 64 474 A 45 6 0.0 572.00 579.50 580.15 GUERRERO, J. PLAG PHYRIC BASALT PCES 1 (1-7), 2 (7-42), 3 (42-63) SIMILAR TO CORE 45-5,MEDIUM-TO-FINE-GRAINED,PHYRIC, HOMOGENEOUS SMALL GREEN CLAY(?)-CALCITE VEIN IN PCE 2(12CM) FRESH RK GRAY BASALT PLAG TO 3 comments : PHENOS WITH GLOMEROCRYSTS LESS ABUNDANT THAN INPREVIOUS SECTIONS CALCITE | CLAY.MIN comments : ID GREEN CLAY.MIN UNCERTAIN POSSIBLY CHLOR 64 474 A 46 1 0.0 581.00 581.00 582.50 GUERRERO, J. PLAG PHYRIC BASALT PCES 1A (3-6), 1B (3-6), 2A (8-49), 2B (50-85), 2C (85-97), 2D (97-100), 2E (99-107), 2F (107-117), 2G (117-120), 2H (119-131), 2I (132-150) APHANITIC,HOMOGENEOUS,ESSENTIALLY CONTINUATION OF CORE 45-6 BECOMING FINER-GRAINED TOWARD CORE BASE VERY MASSIVE,NO VEINS FRESH NO VISIBLE ALTERATION DARK GRAY 0 PLAG TO 3 comments : LATHS 64 474 A 46 2 0.0 581.00 582.50 583.85 GUERRERO, J. PLAG SPARSELY PHYRIC BASALT PCES 1 (0-12), 2A (16-17), 2B (15-17), 3 (20-25), 4 (26-34), 5A (36-38), 5B (36-41), 6 (43-46), 7 (47-52), 8A (54-65), 8B (65-75), 8C (73-75), 8D (73-79), 9 (80-84), 10A (86-93), 10B (94-104), 10C (104-110), 11A (113-120), 11B (118-135) 0-19CM FINE-GRAINED,PCE 1 CONTINUATION OF CORE 46-1, PCE 11A SHOWS GLASS IN UPPER PART TWO CALCITE-FILLED VEINS AT BOTTOM OF PCE 1,SOME CALCITE VEINS IN PCES 3-10C FRESH MINOR ALTERATION PCES 11A-11B DARK GRAY BASALT,PCES 1-2B SEEM TO BE BASE OF COOLING UNIT,CONTACT NOT RECOVERED 20-110CM, 113-134CM POSSIBLY ANOTHER UNIT PLAG RARE TO 2 comments : 0-19CM | PLAG TO 10 comments : MEGACRYSTS PCES 3-10C | CPX comments : PCES 11A+11B PLAG-CPX MEGACRYSTS CALCITE 64 474 A 46 3 0.0 581.00 584.00 584.90 GUERRERO, J. PLAG PHYRIC BASALT PCES 1 (0-6), 2A (8-12), 2B (7-14), 3 (16-20), 4 (23-28), 5A (30-33), 5B (34-37), 6 (40-47), 7 (49-55), 8 (56-63), 9 (64-70), 10 (73-76), 11 (77-87) PHYRIC GREEN CLAY(?)-CALCITE VEINS FRESH D PCES 1-2B DARK GRAY PLAG TO 10 comments : LARGE MEGACRYSTS | OL 1 comments : ID ALTERED OL UNCERTAIN | CPX 1 CALCITE | CLAY.MIN comments : ID GREEN CLAY.MIN UNCERTAIN POSSIBLY EPID 64 474 A 47 1 0.0 590.00 590.00 591.45 SAUNDERS, A. PLAG PHYRIC BASALT PCES 1 (0-7), 2 (8-10), 3 (12-18), 4 (20-25), 5 (27-31), 6 (33-37), 7A (39-45), 7B (42-50), 8 (52-64), 9 (66-70), 10 (72-75), 11 (76-79), 12 (80-85), 13 (86-92), 14 (92-97), 15 (99-103), 16 (104-112), 17A (113-124), 17B (118-123), 17C (123-125), 18 (127-135), 19 (136-141) FINE-GRAINED TO APHANITIC,PCE 4 GLASS SELVAGE PCES 6-8+15-17 CALCITE-GREEN CLAY VEINS,SMALL GREEN CLAY-FILLED AMYGDULES(<<0.5MM) IN GNDMASS FRESH IGHTLY RESTRICTED TO MINOR CALCITE -GREEN CLAY VEINING IN PCES 6-8+15-17 DARK GRAY BASALT PLAG 10-15 TO 15 comments : ANHEDRAL TO SUBHEDRAL MEGACRYSTS USUALLY 5MM CALCITE | CLAY.MIN comments : GREEN 64 474 A 47 2 0.0 590.00 591.50 593.00 SAUNDERS, A. PLAG PHYRIC BASALT PCES 1A (0-5), 1B (5-10), 2 (12-19), 3A (20-25), 3B (20-30), 3C (25-30), 4A (30-35), 4B (31-40), 5A (42-48), 5B (48-55), 6 (57-64), 7A (65-73), 7B (75-83), 7C (84-90), 7D (91-101), 7E (101-111), 7F (110-115), 8A (120-122), 8B (123-125), 8C (125-127), 8D (127-131), 9A (133-144), 9B (144-149) FINE-GRAINED TO APHANITIC,PHYRIC PCES 7A-7F CALCITE-CHLOR VEINING(1-2MM WIDE) SLIGHTLY RESTRICTED TO BEINS IN PCES 7A-7F | FRESH ALL REMAINING PCES DARK GRAY CALCITE comments : SMALL VESICLES IN PCES 7E-7F PLAG 5-10 comments : ANHEDRAL TO SUBHEDRAL MEGACRYSTS CALCITE | CHLOR 64 474 A 47 3 0.0 590.00 593.00 594.45 SAUNDERS, A. PLAG PHYRIC BASALT PCES 1A (1-3), 1B (1-2), 1C (2-8), 2A (10-20), 2B (20-28), 2C (28-38), 3A (40-45), 3B (43-52), 4 (53-65), 5 (65-70), 6 (71-75), 7 (75-85), 8 (87-89), 9 (90-100), 10A (102-105), 10B (102-105), 11 (107-113), 12A (116-124), 12B (124-132), 13 (134-143) FINE-GRAINED TO APHANITIC,GLASSY SELVAGES ALONG EDGES OF PCES 12A+12B & AT BASE OF PCE 13 PCES 1-2A+11-12 CALCITE VEINS SLIGHTLY AG 10-15 5-15 ANHEDRAL TO SUBHEDRAL MEGACRYSTS CALCITE 64 474 A 47 4 0.0 590.00 594.50 595.95 SAUNDERS, A. PLAG PHYRIC BASALT PCES 1 (0-8), 2 (10-18), 3A (20-21), 3B (19-23), 3C (20-26), 3D (24-28), 4A (30-36), 4B (36-40), 5 (42-49), 6A (51-58), 6B (59-67), 6C (68-71), 6D (71-76), 6E (76-80), 6F (80-90), 6G (90-100), 6H (100-109), 7 (110-114), 8A (115-122), 8B (122-124), 9A (127-135), 9B (135-144) FINE-GRAINED TO APHANITIC,PCES 1+5C-5D GLASSY SELVAGES,PHYRIC CALCITE & CHLOR-FILLED VEINS(<1MM WIDE) SLIGHTLY RESTRICTED TO VEINS GRAY BASALT PLAG 10-15 5-15 comments : ANHEDRAL TO SUBHEDRAL MEGACRYSTS CALCITE | CHLOR 64 474 A 47 5 0.0 590.00 596.00 596.60 SAUNDERS, A. PLAG PHYRIC BASALT PCES 1A (0-6), 1B (6-12), 1C (12-22), 2 (24-28), 3 (31-34), 4 (35-40), 5A (41-42), 5B (43-46), 5C (46-47), 6 (49-57) FINE-GRAINED TO APHANITIC,PHYRIC CALCITE-CHLOR VEINS PCE 6 FRESH VERY SLIGHT ALTERATION RESTRICTED TO VEINS OF PCE 6 GRAY BASALT PLAG 10-15 5-15 comments : ANHEDRAL TO SUBHEDRAL MEGACRYSTS CALCITE | CHLOR 64 474 A 48 1 0.0 599.00 599.00 600.45 GUERRERO, J. PLAG PHYRIC BASALTPILLOW BASALT PCES 1A (1-12), 1B (12-20), 1C (19-28), 2 (31-37), 3 (39-42), 4 (43-48), 5 (51-54), 6 (56-58), 7A (60-68), 7B (67-75), 7C (75-83), 7D (83-90), 8 (83-85), 9 (97-106), 10 (108-117), 11 (120-124), 12 (125-130), 13 (131-135), 14 (137-143) PHYRIC,APHANITIC,GLASS SELVAGES ON PCES 1A-1B+4-7A+ 8-9+14 PCES 1A-1B+10-11 CALCITE VEINS,MANY SMALL VEINLETS ARE ZEOL & CLAYS,SMALL HAIRLINE FRACTURES(VERTICAL TO SUBVERTICAL) OCCUR IN THE PILLOW SELVAGES & EXTEND ABOUT 2-4CM INTO THE PILLOW(DOWN CORES) FRESH GLASS SELVAGES VERY FRESH & SOME ONLY SLIGHTLY PALAGONITIZED | SLIGHTLY RESTRICTED TO VEINS DARK GRAY BASALT PLAG TO 15 TO 15 comments : SUBHEDRAL MEGAPHENOS,LARGER MEGACRYSTS DO NOTOCCUR NEAR TOP OF PILLOWS BUT ARE USUALLY FOUND5-7CM DOWN CORE FROM SELVAGE CALCITE | ZEOL | CLAY.MIN | PALAG GLASS 64 474 A 48 2 0.0 599.00 600.50 602.00 FORNARI, D. PLAG PHYRIC BASALTPILLOW BASALT PCES 1A (1-7), 1B (7-13), 2 (15-23), 3 (25-28), 4A (29-38), 4B (38-39), 5 (40-48), 6A (540-60), 6B (59-69), 7 (70-79), 8 (80-84), 9 (85-93), 10A (96-105), 10B (105-115), 11 (118-122), 12 (123-128), 13A (130-136), 13B (136-138), 13C (138-146), 13D (146-150) FRESH BASALTIC GLASS OCCURS IN PCES 7+8,SLIGHTLY ALTERED GLASS IN PCE 9,GLASSY PILLOW SELVAGES ARE 2-10MM THICK SEVERAL BASALT PILLOW FLOWS,FRACTURES <1MM,FRACTURES IN PILLOW SELVAGES ARE VERTICAL & ROUGHLY RADIAL FROM AN IMAGINARY CENTER POINT OF THE PILLOW,SMALL CALCITE VEINLETS AT TIMES FILL FRACTURES WITH SOME CLAY.MIN FILLING FRESH BASALT UNALTERED & SOME GLASS | SLIGHTLY GLASS IN PCE 9 BEDIUM-GRAY BASALT,PARTS OF GLASSY SELVAGES WERE DESTROYED BY THE DRILLING & CARRIED OFF WITH THE CUTTINGS PLAG 2-10 comments : ANHEDRAL TO SUBHEDRAL & SOME EUHEDRAL,MEGAPHENOS CALCITE | CLAY.MIN 64 474 A 48 3 0.0 599.00 602.00 603.50 FORNARI, D. PLAG PHYRIC BASALTPILLOW BASALT PCES 1 (0-9), 2A (12-22), 2B (22-38), 2C (38-49), 3A (51-57), 3B (57-66), 3C (64-80), 4 (81-84), 5 (85-88), 6 (89-90), 7 (93-97), 8 (99-104), 9 (105-109), 10 (111-118), 11A (120-129), 11B (129-140), 11C (140-148), 11D (148-149) PHYRIC,0.5CM GLASS SELVAGE OCCURS AT TOP OF SECTION, SIMILAR TEXTURE & COMPOSITION TO CORES 48-1 & 48-2 WELL FRACTURED,SOME CALCITE & CLAY VEINS OCCUR WITHIN FRACTURES,LARGE 1-2MM THICK CALCITE-ZEOL VEINS IN PCES 10+11 SLIGHTLY TO MOD AREAS WITH VEINS MEDIUM-GRAY BASALT PLAG 5-10 comments : MEGACRYSTS | CPX | OL CALCITE | ZEOL | CLAY.MIN 64 474 A 48 4 0.0 599.00 603.50 604.85 FORNARI, D. PLAG PHYRIC BASALTPILLOW BASALT PCES 1A (1-12), 1B (9-16), 2 (18-25), 3 (27-31), 4A (33-39), 4B (39-45), 5 (47-50), 6 (52-59), 7 (60-65), 8 (67-80), 9 (82-90), 10 (92-103), 11 (105-111), 12 (113-118), 13 (121-123), 14 (126-130), 15A (132-134), 15B (132-134) PHYRIC,PCES 9-10 FRESH GLASSY SELVAGES,TEXTURE & COMPOSITION SIMILAR TO CORES 48-1 THRU 48-3 CALCITE VEINS FILL FRACTURES,FAIRLY HIGHLY FRACTURED FRESH IGHTLY ALTERED GLASS SELVAGE PCE 1 MEDIUM-GRAY BASALT PLAG comments : MEGACRYSTS EVENLY DISTRIBUTED & ABUNDANT,ONE PLAGMEGACRYST IN GLASS SELVAGE INDICATED MEGACRYSTSARE PRE-ERUPTIVE | CPX | OL PALAG GLASS comments : PALAGONITIZED GLASS SELVAGE PCE 1 | CALCITE | CLAY.MIN 64 474 A 49 1 0.0 608.00 608.00 609.50 GUERRERO, J. PLAG PHYRIC BASALTPILLOW BASALT PCES 1 (2-18), 2A (21-27), 2B (27-31), 2C (28-34), 2D (34-39), 2E (37-46), 2F (47-52), 3 (54-60), 4 (63-68), 5 (69-71), 6A (72-74), 6B (72-77), 7A (79-82), 7B (80-86), 7C (87-90), 8 (93-97), 9A (99-106), 9B (105-110), 9C (109-111), 9D (111-118), 9E (118-121), 10A (122-135), 10B (135-141), 10C (141-148), 10D (145-148) PHYRIC,APHANITIC,GLASSY SELVAGE AT TOP OF PCE 1 FRACTURES UP TO 1CM WIDE(PCE 2E) FILLED WITH CALCITE & CLAY.MIN IN A SUBVERTICAL TREND WITH THINNER FRACTURES RUNNING VERTICALLY,ENTIRE SECTION VERY FRACTURED MOD PCES 2A-9E & TOP OF PCE 1 DARK GRAY BASALT PLAG TO 15 1-15 comments : MEGACRYSTS EVENLY DISTRIBUTED THROUGHOUT,SOMEPHENOS IN GLASS SELVAGE IN PCE 1 | CPX comments : VISIBLE IN PCES 2A+2F+10A CALCITE | CLAY.MIN 64 474 A 49 2 0.0 608.00 609.50 611.00 GUERRERO, J. PLAG PHYRIC BASALTPILLOW BASALT PCES 1 (2-5), 2 (5-8), 3 (10-28), 4 (31-36), 5D (38-41), 6 (43-45), 7 (47-58), 8 (60-63), 9 (65-74), 10 (75-82), 11A (83-89), 11B (88-92), 11C (92-95), 11D (95-102), 11E (95-100), 12 (108-115), 13 (106-108), 14 (120-123), 15A (125-134), 15B (134-138), 15C (138-140), 15D (140-145), 15E (145-149) PHYRIC,APHANITIC,GLASSY SELVAGE PCE 4 PILLOW,CALCITE-CLAY.MIN(?)-FILLED VINS IN A SUB- VERTICAL TREND,HORIZONTAL CRACKS IN SEVERAL PCES, HIGHLY FRACTURED FRESH D RESTRICTED TO SOME VEINS DARK GRAY PLAG TO 10 2-15 comments : MEGACRYSTS CALCITE | CLAY.MIN comments : ID CLAY.MIN UNCERTAIN 64 474 A 49 3 0.0 608.00 611.00 612.45 GUERRERO, J. PLAG PHYRIC BASALTPILLOW BASALT PCES 1 (1-15), 2 (16-26), 3A (28-39), 3B (40-50), 3C (50-56), 3D (55-61), 4 (63-66), 5 (70-71), 6 (73-82), 7 (84-86), 8A (88-100), 8B (101-110), 8C (109-115), 8D (115-121), 9A (122-130), 9B (130-137), 9C (137-145) PHYRIC,GLASSY SELVAGE ON PCE 6,APHANITIC HIGHLY FRACTURED,PCE 6 SOME CALCITE-CLAY.MIN VEINS FRESH MINOR ALTERATION DARK-GRAY BASALT CHLOR comments : PCE 9 PLAG TO 15 comments : MEGACRYSTS DISTRIBUTED EVENLY | CPX comments : PCE 9 CLAY.MIN | CALCITE 64 474 A 49 4 0.0 608.00 612.50 612.95 GUERRERO, J. PLAG PHYRIC BASALTPILLOW BASALT PCES 1 (3-8), 2 (10-15), 3 (18-20), 4 (21-24), 5 (25-28), 6 (30-34), 7 (36-43) PHYRIC,APHANITIC,GLASSY SELVAGE PCE 2 CALCITE-FILLED VEINS & FRACTURES WITH CLAY.MIN IN PCE 2 FRESH RK GRAY BASALT PLAG TO 10 comments : MEGACRYSTS LESS ABUNDANT THAN PREVIOUS SECTIONS CALCITE | CLAY.MIN 64 474 A 50 1 0.0 617.00 617.00 618.50 GUERRERO, J. PLAG PHYRIC BASALT PCES 1A (0-11), 1B (11-16), 1C (16-22), 2A (23-36), 2B (36-44), 3 (45-51), 4 (53-78), 5A (79-85), 5B (82-86), 5C (87-91), 6 (93-103), 7 (105-113), 8A (114-120), 8B (118-127), 8C (127-135), 8D (135-140), 8E (139-147) PHYRIC,APHANITIC SLICKENSLIDE STRUCTURE PCE 3(49CM) ALONG A CHLOR- FILLED VEIN(0.5MM WIDE),CHLOR VEINS PCES 2B-4 IN A SUBVERTICAL FASHION,THIN HORIZONTAL CRACKS THROUGHOUT SECTION FRESH D RESTRICTED TO PCES WITH CHLOR(?) VEINS & SOME CLAY-FILLED VESICLES DARK GRAY BASALT CLAY.MIN comments : GREEN PLAG 10 2-10 CALCITE | CLAY.MIN comments : GREEN,ID UNCERTAIN | CHLOR comments : ID CHLOR UNCERTAIN 64 474 A 50 2 0.0 617.00 618.50 620.00 GUERRERO, J. PLAG PHYRIC BASALT PCES 1 (0-9), 2A (11-13), 2B (12-18), 2C (18-25), 3 (27-30), 4 (32-35), 5A (37-40), 5B (40-45), 5C (45-52), 5D (52-58), 5E (58-64), 5F (58-63), 6 (65-69), 7A (70-79), 7B (79-88), 8 (90-93), 9A (95-105), 9B (108-110), 10A (113-116), 10B (117-119), 11A (121-124), 11B (125-135), 11C (133-139), 12A (140-144), 12B (144-149), 12C (146-149) PHYRIC,APHANITIC CALCITE VEINS IN PCE 5C,CHLOR-FILLED VEINS IN PCES 5E+9A+11B(3MM WIDE) FRESH PCES 1-7A | MOD PCES 7B-12C & NEAR VEINS DARK GRAY BASALT CLAY.MIN,CALCITE comments : PCES 5E-12C PLAG TO 10 comments : MEGACRYSTS PCES 1-9B,SIZE DECREASED DOWNWARD CALCITE | CLAY.MIN comments : GREEN CLAY.MIN | PYR 4 comments : PCE 5E 64 474 A 50 3 0.0 617.00 620.00 621.50 GUERRERO, J. BASALT PCES 1 (0-21), 2A (23-29), 2B (30-34), 2C (34-39), 3 (43-45), 4 (46-52), 5A (55-61), 5B (62-64), 5C (64-70), 6 (71-73), 7 (74-84), 8 (85-95), 9A (96-98), 9B (99-101), 10A (103-106), 10B (111-118), 10C (118-125), 11 (127-136), 12 (137-149) PCES 1-3 EQUIGRANULAR APHANITIC TO VERY FINE- GRAINED,PCES 4-12 APHANITIC EQUIGRANULAR, HOMOGENEOUS PCES 1-3 BADLY FRACTURED & CUT BY GREEN CLAY-FILLED (CHLOR?) VEINS,PCE 2C SHOWS SLICKENSLIDE ALONG VEIN PLANE,PCES 4-12 MASSIVE FRESH PCES 4-12 | SLIGHTLY ALTERATION SHOWN ONLY IN VESICLES OF PCES 4+5A | MOD PCES 1-3 DARK GRAY BASALT,PCES 4-12 POSSIBLY NEW UNIT WHOSE CONTACT WAS NOT RECOVERED CALCITE comments : PCES 4+5A comments : NO MEGACRYSTS IN PCES 4-12(POSSIBLY NEW UNIT WHOSECONTACT WAS NOT RECOVERED) | CPX comments : FROM THIN SECTION THIS IS ACTUALLY ALTERED OL CLAY.MIN comments : GREEN,POSSIBLY CHLOR | CALCITE 64 474 A 50 4 0.0 617.00 621.50 621.70 FORNARI, D. APHYRIC TO PLAG SPARSELY PHYRIC BASALT PCES 1A (1-9), 1B (9-14), 1C (15-17) MOSTLY APHYRIC,FINE-GRAINED SOME CALCITE VEINS(1MM WIDE),A FEW FRACTURES FRESH DIUM-GRAY BASALT 1-2 CLAY.MIN comments : GREEN PLAG comments : EVENLY DISTRIBUTED CALCITE | CLAY.MIN comments : GREEN