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 74 527 38 CC 0.0 332.00 338.70 340.03 BORELLA, P. E. SEDIMENT 74 527 38 CC 143.0 332.00 340.03 340.08 BORELLA, P. E. BASALTIC RUBBLE PCE 1 (143-148) APHANITIC MARGIN SUGGESTIVE OF A GLASSY TEXTURE PCE 1 BEGINS UNIT 1 74 527 39 1 0.0 341.50 341.50 342.95 BORELLA, P. E. PLAG-OL-CPX SPARSELY TO MOD PHYRIC BASALTMASSIVE BASALT PCES 1A (1-17), 1B (15-36), 1C (35-60), 1D (59-70), 1E (70-77), 1F (74-80), 1G (78-120), 1H (116-134), 1I (133-145) SPARSELY TO MOD PHYRIC,FINE-GRAINED,NO GLASSY RIMS MASSIVE BASALT,SMEC VEINS(?) ON PCES 1C+1E MOD NTINUATION OF UNIT 1,MEDIUM GRAY BASALT PLAG comments : MOSTLY LARGE PHENOS WHICH ARE SUBROUNDED(LACKSGOOD XTL SHAPE) & SOME ALSO HAVE INCLUDEDFRAGMENTS | OL | CPX SMEC comments : ID SMEC VEINS UNCERTAIN IN PCES 1C+1E 74 527 39 2 0.0 341.50 343.00 344.50 BORELLA, P. E. PLAG-OL-CPX SPARSELY TO MOD PHYRIC BASALTMASSIVE BASALT PCES 1A (0-7), 1B (7-25), 1C (25-34), 1D (35-41), 1E (42-73), 1F (73-90), 1G (90-147) SPARSELY TO MOD PHYRIC,NO GLASSY MARGINS,FINE- GRAINED MASSIVE BASALT,PCE 1B HAS SMEC & PYR VEIN,PCE 1D HAS CALCITE VEIN,VEINS WITH UNKNOWN FILLING IN PCES 1A+1G MOD NTINUATION OF UNIT 1 PLAG | OL | CPX SMEC | PYR | CALCITE | UNIDENT comments : REPLACEMENT MINERALS ARE FOUND IN VEINS 74 527 39 3 0.0 341.50 344.50 345.90 O'CONNELL, S. PLAG-OL-CPX SPARSELY TO MOD PHYRIC BASALTMASSIVE BASALT PCES 1A (1-2), 1B (1-2), 1C (2-41), 1D (41-48), 1E (45-48), 1F (48-53), 1G (53-84), 1H (84-87), 1I (88-107), 1J (107-116), 1K (116-140) SPARSELY TO MOD PHYRIC,NO GLASS OBSERVED MASSIVE BASALT,THIN VEIN IN PCE 1I MOD ALTERATION VEIN IN PCE 1I CONTINUATION OF UNIT 1,MEDIUM GRAY BASALT PLAG TO 5 | OL | CPX comments : OL GRAINS ARE DARK GREEN & SUB-TO-ANHEDRAL,SOME OLENCLOSED BY LARGE PLAG GRAINS(?),SOME PLAG ARE TO5MM LONG & ARE LATH-LIKE,OTHER PLAG ARE ROUNDED &THEREFORE THEIR ID AS PLAG IS QUESTIONABLE 74 527 39 4 0.0 341.50 346.00 346.55 O'CONNELL, S. PLAG-OL-CPX SPARSELY TO MOD PHYRIC BASALTMASSIVE BASALT PCES 1A (1-10), 1B (10-20), 1C (21-28), 1D (28-42), 1E (43-53) SPARSELY TO MOD PHYRIC,NO GLASS MASSIVE BASALT MOD DIUM GRAY BASALT,PCE 1E ENDS UNIT 1 PLAG | OL | CPX 74 527 40 1 0.0 346.50 346.50 347.90 BORELLA, P. E. PLAG-OL-CPX SPARSELY PHYRIC BASALTMASSIVE BASALT PCES 1 (0-8), 2 (12-17), 3A (21-40), 3B (41-52), 3C (52-63), 3D (63-72), 3E (72-81), 3F (81-95), 3G (95-110), 3H (110-121), 3I (122-133), 3J (134-136) SPARSELY PHYRIC,PCE 1A HAS GLASS RIND & COMPRISES A COOLING UNIT CHILLED MARGIN,BOTTOM OF PCE 3I IS VERY FINE-GRAINED & REPRESENTS LOWER CHILLED MARGIN OF THE COOLING UNIT,FINE-GRAINED MASSIVE BASALT,FRACTURED NON-CALCAREOUS VEIN IS PRESENT IN PCES 3B-3D(ZEOL?) MOD TIRE SECTION COMPRISES UNIT 2,MEDIUM GRAY BASALT 74 527 40 2 4.0 346.50 348.04 348.06 O'CONNELL, S. SEDIMENTLIMESTONE 74 527 40 2 8.0 346.50 348.08 349.42 O'CONNELL, S. PLAG-OL-CPX SPARSELY PHYRIC BASALT PCES 1A (8-13), 1B (14-21), 1C (21-30), 1D (30-36), 1E (36-44), 1F (45-84), 1G (85-96), 1H (96-105), 1I (105-142) SPARSELY PHYRIC,PCE 1A IS VERY FINE-GRAINED PARTICULARLY AT THE TOP,PCES 1B-1C ARE FINER-GRAINED THAN UNDERLYING BASALT EXT PCES 1A-1C HAVE BEEN ALTERED TO A GREEN SMEC-LIKE SUBSTANCE | MOD PCES 1D-1I PCE 1A BEGINS UNIT 3,PCES 1A-1C GREEN,PCES 1D-1I ARE MEDIUM-GRAY BASALT comments : LARGE ALTERED VESICLES PLAG | OL | CPX TO 20 comments : LARGE PLAG PHENOS,OL PRESENT IN MATRIX & IN PLAGPHENOS PYR comments : SMALL PCES OF PYR OCCUR IN ALTERED AREAS OF PCE 1A | SMEC comments : PCES 1A-1C ALTERED TO GREEN SMEC-LIKE MATERIAL 74 527 41 1 0.0 350.50 350.50 352.00 RICHARDSON, S. H. PLAG-CPX-OL SPARSELY PHYRIC BASALTMASSIVE BASALT PCES 1A (1-32), 1B (31-41), 1C (42-48), 1D (48-96), 1E (90-96), 1F (97-107), 1G (107-115), 1H (115-122), 1I (122-139), 1J (138-147),1K (145-150) SPARSELY PHYRIC,NO APPARENT CHILLED MARGINS MASSIVE BASALT,THIN 1MM DARK GREEN SMEC-FILLED VEINS IN PCES 1F-1I MOD SOME ADJACENT BASALT GNDMASS SHOWS ALTERATION TO GREEN CLAY.MIN MEDIUM GRAY BASALT,CONTINUATION OF UNIT 3 1-2 CLAY.MIN comments : VERY SPARSE SCATTERED VESICLES FILLED WITH OLIVE GREEN CLAY.MIN PLAG 2-20 comments : STUBBY LATHS | OL TO 2 comments : SPARSE OL GENERALLY REPLACED BY GREEN CLAY.MIN CLAY.MIN OL comments : GREEN CLAY.MIN GENERALLY REPLACING OL | SMEC comments : DARK GREEN SMEC FILLS VEINS IN PCES 1F-1I 74 527 41 2 0.0 350.50 352.00 353.40 RICHARDSON, S. H. PLAG-CPX-OL PHYRIC BASALT PCES 1A (1-12), 1B (12-20), 1C (20-27), 1D (26-45), 1E (44-57), 1F (56-68), 1G (67-75), 1H (75-84), 1I (84-90), 1J (91-99), 1K (98-103), 1L (104-113), 1M (113-121), 1N (121-132),1O (132-140) PHYRIC,MEDIUM-GRAINED,IDENTICAL TO CORE 41-1 MOD DIUM-GRAY BASALT,CONTINUATION OF UNIT 3 PLAG | CPX | OL 74 527 41 3 0.0 350.50 353.50 354.90 RICHARDSON, S. H. PLAG-CPX-OL PHYRIC BASALT PCES 1A (0-17), 1B (17-32), 1C (32-50), 1D (50-62), 1E (63-71), 1F (71-77), 1G (77-84), 1H (84-88), 1I (87-100), 1J (100-106), 1K (106-117), 1L (117-123), 1M (125-137) PHYRIC,MEDIUM-GRAINED,ESSENTIALLY SAME AS CORES 41-1 & 41-2 MOD DIUM GRAY BASALT,CONTINUATION OF UNIT 3 PLAG | CPX | OL comments : PERHAPS GRADUAL INCREASE IN OL MICROPHENOABUNDANCE 74 527 41 4 0.0 350.50 355.00 356.35 RICHARDSON, S. H. PLAG-CPX-OL PHYRIC BASALT PCES 1A (1-31), 1B (31-42), 1C (42-49), 1D (50-59), 1E (60-90), 1F (90-100), 1G (100-110), 1H (110-125), 1I (126-130) PHYRIC,MEDIUM-GRAINED PCES 1B-1F TRAVERSED BY CARB.UNSPEC VEIN LINED WITH GREEN CLAY.MIN MOD ASSOCIATED PALE BROWN OXIDATION HALO OBSERVED IN SURROUNDING BASALT GNDMASS PCE 1I ENDS UNIT 3,UNIT 3 IS PERHAPS A SINGLE COOLING UNIT PLAG | OL | CPX comments : VERY SPARSE OL MICROPHENOS CARB comments : CARB.UNSPEC VEIN TRAVERSES PCES 1B-1F | CLAY.MIN comments : GREEN CLAY.MIN LINES CARB.UNSPEC VEIN IN PCES 1B-1F 74 527 41 5 0.0 350.50 356.50 357.07 RICHARDSON, S. H. SEDIMENT 74 527 41 5 57.0 350.50 357.07 357.55 RICHARDSON, S. H. PLAG SPARSELY PHYRIC BASALT PCES 1A (57-62), 1B (63-66), 1C (67-73), 2A (75-84), 2B (75-79), 2C (79-84), 3A (87-91), 3B (87-93), 4A (95-105), 4B (100-105) PHYRIC,FINE-GRAINED,PCE 1A IS A CHILLED FLOW OR PILLOW MARGIN WITH ALT.GLAS RIND MOD TO EXT PCES 1A-1C,PCE 1A HAS GLASS RIND ALTERED TO PALE GREEN PALAG & CLAY.MIN PCE 1A BEGINS UNIT 4,MEDIUM GRAY BASALT PLAG PALAG GLASS | CLAY.MIN GLASS comments : PCE 1A GLASSY MARGIN ALTERED TO PALE GREEN PALAG & CLAY.MIN 74 527 42 1 0.0 359.50 359.50 359.57 RICHARDSON, S. H. PLAG SPARSELY PHYRIC BASALT PCE 1 (0-7) SPARSELY PHYRIC,FINE-GRAINED,IDENTICAL TO BASALT IN LATTER HALF OF CORE 42-5 MOD DIUM GRAY BASALT,PCE 1 ENDS UNIT 4 PLAG 74 527 42 1 7.0 359.50 359.57 361.00 RICHARDSON, S. H. SEDIMENT 74 527 42 2 0.0 359.50 361.00 362.50 RICHARDSON, S. H. SEDIMENT 74 527 42 3 0.0 359.50 362.50 363.00 RICHARDSON, S. H. SEDIMENT 74 527 42 3 50.0 359.50 363.00 364.00 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (51-53), 1B (55-62), 1C (63-70), 1D (70-73), 1E (74-133), 1F (133-150) APHYRIC,FINE-GRAINED MASSIVE BASALT,BLUE CLAY.MINS FILL SCATTERED VOIDS MOD TO EXT E 1A BEGINS UNIT 5 74 527 42 4 0.0 359.50 364.00 365.50 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (0-20), 1B (21-36), 1C (36-57), 1D (57-92), 1E (92-104), 1F (104-122), 1G (122-135), 1H (135-150) APHYRIC,SAME AS CORE 42-3 MASSIVE BASALT,DARK GREEN CLAY.MIN FILLING OF SCATTERED VOIDS & VEINS MOD TO EXT NTINUATION OF UNIT 5,MEDIUM GRAY BASALT CLAY.MIN comments : DARK GREEN CLAY.MIN FILLS VOIDS & VEINS 74 527 42 5 0.0 359.50 365.50 365.90 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCE 1 (2-37) APHYRIC,FINE-GRAINED,SAME AS CORES 42-3 & 42-4 MASSIVE BASALT MOD TO EXT NTINUATION OF UNIT 5,MEDIUM GRAY BASALT 74 527 43 1 0.0 368.50 368.50 370.00 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (1-29), 1B (28-53), 1C (53-68), 1D (68-101), 1E (101-128), 1F (127-131), 1G (131-149) APHYRIC,MEDIUM-GRAINED MASSIVE BASALT MOD TO EXT DIUM GRAY BASALT,CONTINUATION OF UNIT 5 74 527 43 2 0.0 368.50 370.00 371.50 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (1-12), 1B (12-48), 1C (47-57), 1D (58-89), 1E (88-106), 1F (106-117), 1G (117-149) APHYRIC,MEDIUM-GRAINED,SAME AS CORE 43-1,ZONE BETWEEN 36-66CM IS COARSE-GRAINED & PEGMATITIC FEW THIN VEINS ARE FILLED WITH DARK GREEN SMEC & MINOR PYR,MASSIVE BASALT MOD TO EXT NTINUATION OF UNIT 5,MEDIUM GRAY BASALT PLAG TO 5 comments : ELONGATE PLAG LATHS TOWARDS THE TOP OF SECTION SMEC comments : DARK GREEN SMEC FILLS A FEW THIN VEINS | PYR comments : MINOR PYR FOUND IN THIN VEINS 74 527 43 3 0.0 368.50 371.50 372.90 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (0-7), 1B (7-34), 1C (34-92), 1D (92-102), 1E (102-140) APHYRIC,COARSE-GRAINED,SAME AS CORE 43-2,PATCHY DISTRIBUTION OF COARSE-GRAINED BASALT THIN VEINS ARE FILLED WITH DARK GREEN SMEC & PYR IN PCE 1C MOD TO EXT DIUM GRAY BASALT,CONTINUATION OF UNIT 5 SMEC comments : DARK GREEN SMEC FILLS THIN VEINS IN PCE 1C | PYR comments : PYR FILLS THIN VEINS IN PCE 1C & IS EVIDENT IN COARSE-GRAINED GNDMASS IN PCE 1C 74 527 43 4 0.0 368.50 373.00 374.45 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (0-27), 1B (28-62), 1C (62-113), 1D (113-145) APHYRIC,MEDIUM-TO-COARSE-GRAINED,SAME AS CORE 43-3 3-4MM THICK DARK GREEN SMEC-FILLED VEIN TRAVERSES PCE 1D,MASSIVE BASALT MOD TO EXT DIUM GRAY BASALT,CONTINUATION OF UNIT 5 SMEC comments : 3-4MM THICK DARK GREEN SMEC-FILLED VEIN TRAVERSES PCE 1D 74 527 43 5 0.0 368.50 374.50 374.85 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (0-10), 1B (10-35) APHYRIC,MEDIUM-TO-COARSE-GRAINED,SAME AS CORE 43-4 MOD TO EXT DIUM-GRAY BASALT,CONTINUATION OF UNIT 5 74 527 44 1 0.0 377.50 377.50 379.00 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (1-20), 1B (20-25), 1C (22-51), 1D (51-64), 1E (65-86), 1F (87-132), 1G (132-149) APHYRIC,MEDIUM-GRAINED,ABRUPT 3OMM WIDE FINE-GRAINED ZONE AT 95CM DEPTH THIN VEINS ARE FILLED WITH GREEN SMEC & MINOR PYR, MASSIVE BASALT MOD TO EXT NTINUATION OF UNIT 5,MEDIUM GRAY BASALT PLAG 2-5 comments : SCATTERED PLAG PHENOS SMEC comments : GREEN SMEC FILLS THIN VEINS | PYR comments : MINOR PYR FILLS VEINS 74 527 44 2 0.0 377.50 379.00 380.50 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (0-48), 1B (48-77), 1C (70-105), 1D (105-150) APHYRIC,MEDIUM-GRAINED,SAME AS CORE 44-1 MASSIVE BASALT MOD TO EXT NTINUATION OF UNIT 5,MEDIUM GRAY BASALT 74 527 44 3 0.0 377.50 380.50 382.00 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (1-4), 1B (4-34), 1C (34-66), 1D (65-100), 1E (99-115), 1F (115-136), 1G (135-150) APHYRIC,MEDIUM-GRAINED,SAME AS CORE 44-2 MASSIVE BASALT MOD TO EXT NTINUATION OF UNIT 5,MEDIUM GRAY BASALT PLAG comments : VERY SPARSE 74 527 44 4 0.0 377.50 382.00 383.50 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (1-4), 1B (4-22), 1C (21-49), 1D (49-61), 1E (62-86), 1F (86-119), 1G (119-150) APHYRIC,MEDIUM-GRAINED,SAME AS CORE 44-3 MASSIVE BASALT MOD TO EXT NTINUATION OF UNIT 5,MEDIUM GRAY BASALT PLAG comments : VERY SPARSE 74 527 44 5 0.0 377.50 383.50 384.15 RICHARDSON, S. H. APHYRIC BASALTMASSIVE BASALT PCES 1A (2-3), 1B (3-10), 1C (9-25), 1D (27-35), 1E (37-65) APHYRIC,MEDIUM-GRAINED,SAME AS CORE 44-4 MASSIVE BASALT MOD TO EXT PCES 1A-1D | EXT PYR OCCURS IN GNDMASS OF PCE 1E WHICH ALSO DISPLAYS AN ALTERATION HALO(?) RUNNING THE LENGTH OF THE PCE CONTINUATION OF UNIT 5,MEDIUM-GRAY BASALT PLAG comments : VERY SPARSE PYR comments : OCCURS IN GNDMASS OF PCE 1E