Leg : 70 Top/Bottom Interval(mm): 0/ 900 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 113.90
Core: 8 Top of Core Depth (m) : 111.50
Sect: 2 Top of Section Depth(m): 113.00
LITHOLOGY: SEDIMENT;
SILICEOUS NANNO-OOZE;
Leg : 70 Top/Bottom Interval(mm): 920/1180 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 114.18
Core: 8 Top of Core Depth (m) : 111.50
Sect: 2 Top of Section Depth(m): 113.92
LITHOLOGY: PLAG MOD PHYRIC BASALT;
Piece No. : PCE 46 (92-95), 47 (96-99), 48 (100-109),
49 (110-118);
Texture : PLAG MOD PHYRIC;
Structure : SOME CRACKS WITH PYRITE AND VERY FINE-GRAINED WHITE
MINERAL, BLUE CLAY COATING ON ONE SIDE;
Alteration : NO ALTERATION RIMS PRESENT, SMALL PYRITE GRAINS
ON AN UNCUT SURFACE;
FRESH
PCE 47 - APPARENTLY NO ALTERATION;
Comments : PCE 46 IS 4 X 7CM, PCE 47 IS 6 X 3CM, PCE 48 IS
5 X 10CM, PCE 49 IS 4 X 7CM;
Vesicles : Size(mm): Percent: RARE
Location: Filling: SMEC
IN PCE 46 RARE VESICLES FILLED WITH GREEN SMEC;
NO VESICLES IN PCE 47;
Location: Filling: CLAY,CALCITE
VERY FEW VESICLES IN PCE 48, ONE OF THEM IS FILLED
WITH GREENISH WHITE CLAY (AND CALCITE?);
Location: Filling: SMEC,CLAY
IN PCE 49 SOME VESICLES FILLED BY GREEN SMEC AND
WHITE MATERIAL (PROBABLY CLAY);
Phenocrysts: PLAGIOCLASE
Replacement: PYRITE
CLAY MINERALS
IN CRACKS AND VESICLES, BLUE AND GREENISH WHITE
CLAY;
CALCITE
ID UNCERTAIN;
Leg : 70 Top/Bottom Interval(mm): 0/ 200 Analyst: Schrader, E.L.
Hole: 510 Sample Midpoint (m) : 114.38
Core: 8 Top of Core Depth (m) : 111.50
Sect: CC Top of Section Depth(m): 114.28
LITHOLOGY: PLAG-CPX MOD PHYRIC BASALT;
Piece No. : PCE 50 (1-4), 51 (7-16), 52 (19-20);
Texture : MOD PHYRIC, MEDIUM-GRAINED;
Structure : VOIDS ARE FILLED WITH GREEN SMEC;
Alteration : IN PCE 50 SMEC PATCHES ON UNCUT SURFACES, PCE 51
HAS ALTERATION RIND OF APPROXIMATELY 0.75CM
AROUND ALL EDGES AND SOME GREEN SMEC COATS
PATCHY AREAS OF UNCUT SURFACES;
Vesicles :
Location: Filling: SMEC
VESICLES IN RIND OF PCE 51 ARE FILLED WITH GREEN
SMEC;
VESICLES RARE TO ABSENT IN ALL PCES;
Phenocrysts: PLAGIOCLASE
CLINOPYROXENE
Replacement: SMECTITE
SMEC GRADES FROM LIME GREEN TO BLUE GREEN ON THE
UNCUT SURFACE OF PCE 51;
Leg : 70 Top/Bottom Interval(mm): 0/ 100 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 114.60
Core: 9 Top of Core Depth (m) : 114.50
Sect: 1 Top of Section Depth(m): 114.50
LITHOLOGY: PLAG PHYRIC TO MOD PHYRIC BASALT;
Piece No. : PCE 53 (2-10);
Texture : PHYRIC TO MOD PHYRIC, MEDIUM-GRAINED;
Structure : NUMEROUS TINY (<0.5MM) IRREGULAR SHAPED VOIDS,
SEVERAL "FRESH" CRACKS (SOME OF THEM ARE FILLED BY
BLUE CLAY), IN ALTERATION RIM VOIDS ARE OFTEN
COATED BY BLUE CLAY WITH THIN GREEN COATING AT THE
BOTTOM;
Alteration : ALTERATION RIM IS 5-10MM THICK;
Comments : UNIT 1;
Phenocrysts: PLAGIOCLASE
Size(mm): 1-5
Replacement: CLAY MINERALS
Leg : 70 Top/Bottom Interval(mm): 120/ 450 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 114.95
Core: 9 Top of Core Depth (m) : 114.50
Sect: 1 Top of Section Depth(m): 114.62
LITHOLOGY: PLAG-PYX MOD PHYRIC BASALT;
PCES 55A-57 ARE THE SAME AS PCE 54;
Piece No. : PCE 54 (12-17), 55A (21-26), 55B (28-36),
56 (36-41), 57 (41-45);
Texture : MOD PHYRIC, MEDIUM-GRAINED;
Structure : IN PCE 54 ONE CRACK FILLED WITH DARK GREEN CLAY IN
THE ALTERED RIM AND FILLED WITH WHITE CLAY(?) IN THE
FRESH PART, PCE 55A HAS VOIDS MOST OF WHICH ARE
EMPTY AND SOME ARE FILLED BY WHITE FINE-GRAINED
MATERIAL;
Alteration : THIN GREEN COATING AT THE TOP OF PCE 54, IN PCES
55B-57 BLUE AND WHITE THIN COATING ON SOME FACES;
Comments : UNIT 1;
Phenocrysts: PLAGIOCLASE
PYROXENE
Size(mm): <1
MORE NUMEROUS IN PCES 55B-57 THAN IN 54+55B;
Replacement: CLAY MINERALS
GREEN AND WHITE;
Leg : 70 Top/Bottom Interval(mm): 470/ 540 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 115.04
Core: 9 Top of Core Depth (m) : 114.50
Sect: 1 Top of Section Depth(m): 114.97
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 58 (47-54);
Texture : APHYRIC, FINE-GRAINED;
Alteration : ONE OF THE UNCUT SURFACES IS COATED BY TINY PYRITE
CRYSTALS WHICH ALSO OCCUR ON THE SECTION;
Comments : UNIT 1;
Vesicles : NUMEROUS VESICLES;
Replacement: PYRITE
Leg : 70 Top/Bottom Interval(mm): 550/ 620 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 115.12
Core: 9 Top of Core Depth (m) : 114.50
Sect: 1 Top of Section Depth(m): 115.05
LITHOLOGY: APHYRIC BASALT;
PCE 59 IS THE SAME AS 58;
Piece No. : PCE 59 (55-61);
Texture : APHYRIC;
Alteration : THIN BLUE CLAY AND PYRITE COATING;
Comments : UNIT 2;
Replacement: PYRITE
CLAY MINERALS
BLUE CLAY;
Leg : 70 Top/Bottom Interval(mm): 620/ 690 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 115.19
Core: 9 Top of Core Depth (m) : 114.50
Sect: 1 Top of Section Depth(m): 115.12
LITHOLOGY: PLAG PHYRIC TO MOD PHYRIC BASALT;
VERY SIMILAR TO PCE 53;
Piece No. : PCE 60 (62-69);
Texture : PHYRIC TO MOD PHYRIC, MEDIUM-GRAINED;
Alteration : BLUE CLAY COATING ON ONE FACE;
Comments : COOLING UNIT 2;
Phenocrysts: PLAGIOCLASE
Replacement: CLAY MINERALS
BLUE CLAY;
Leg : 70 Top/Bottom Interval(mm): 720/1460 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 115.96
Core: 9 Top of Core Depth (m) : 114.50
Sect: 1 Top of Section Depth(m): 115.22
LITHOLOGY: PLAG-PYX MOD PHYRIC BASALT;
SAME AS 55A TO 57 WITH SOME SLIGHT DIFFERENCES IN
THE AMOUNT AND SIZE OF PHENOS;
Piece No. : PCE 61 (72-81), 62 (81-87), 63 (87-97),
64 (100-105), 65 (108-111), 66 (114-122),
67 (122-131), 68 (128-136), 69 (139-146);
Texture : MOD PHYRIC;
Alteration : ON SAMPLES 66-68 ONE SIDE IS COATED BY GREEN
SMEC AND BLUE CLAY, THE ALTERATION RIM IS THICK
(UP TO 3CM);
Comments : UNIT 2, 3 UNITS MAY BE PRESENT-A UNIT CONSISTING
OF PCES 53-57+A UNIT CONSISTING OF PCES 58-59+A
UNIT CONSISTING OF PCES 60-69;
Phenocrysts: PLAGIOCLASE
PYROXENE
Replacement: SMECTITE
GREEN SMEC;
CLAY MINERALS
BLUE CLAY;
Leg : 70 Top/Bottom Interval(mm): 100/ 620 Analyst: Schrader, E.L.
Hole: 510 Sample Midpoint (m) : 116.62
Core: 9 Top of Core Depth (m) : 114.50
Sect: 2 Top of Section Depth(m): 116.10
LITHOLOGY: PLAG-CPX MOD PHYRIC BASALT;
Piece No. : PCE 71 (10-19), 72 (20-27), 73 (28-32),
74 (32-35), 75 (36-37), 76 (39-42), 77 (42-45),
78 (48-57), 79 (56-62);
Texture : MOD PHYRIC, PCE 71 IS FINE-GRAINED TO GLASSY BASALT,
2 AREAS OF GLASSY RIND INDICATE TOP OF FLOW, PCES
72-79 ARE MEDIUM-GRAINED;
Alteration : IN PCE 71 BROWN CRUST ON PORTION OF UNCUT SURFACE,
IN ALL PCES OF THIS COOLING UNIT THERE IS A GREEN
COATING AND/OR COLORATION ON FELDSPARS IN THE
ALTERATION RIND-IT IS POSSIBLY THE APPEARANCE OF
CHLORITE, ALL PCES OF UNIT HAVE BROWN-GREEN CRUSTS
(VERY THIN AND PATCHY) ON UNCUT SURFACES;
Comments : COOLING UNIT 2;
Vesicles :
Location: Filling: SMEC
PCES 76+77 HAVE VUGS COATED AND FILLED WITH
BLUE GREEN SMEC(?), ORANGE BROWN VUG FILLING ON
BOTTOM OF PCE 79;
Phenocrysts: PLAGIOCLASE
CLINOPYROXENE
Replacement: CHLORITE
ID UNCERTAIN;
SMECTITE
ID UNCERTAIN;
Leg : 70 Top/Bottom Interval(mm): 0/ 80 Analyst: Schrader, E.L.
Hole: 510 Sample Midpoint (m) : 116.08
Core: 9 Top of Core Depth (m) : 114.50
Sect: 2 Top of Section Depth(m): 116.00
LITHOLOGY: PLAG-CPX MOD PHYRIC BASALT;
Piece No. : PCE 70 (2-8);
Texture : MOD PHYRIC, MEDIUM-GRAINED;
Comments : COOLING UNIT 1, COULD BE REMAINDER OF COOLING UNIT
2 OF SECTION 9-1;
Phenocrysts: PLAGIOCLASE
PYROXENE
Leg : 70 Top/Bottom Interval(mm): 660/1500 Analyst: Schrader, E.L.
Hole: 510 Sample Midpoint (m) : 117.50
Core: 9 Top of Core Depth (m) : 114.50
Sect: 2 Top of Section Depth(m): 116.66
LITHOLOGY: PLAG-CPX MOD PHYRIC BASALT;
Piece No. : PCE 80 (66-73), 81 (74-76), 82 (77-80), 83 (82-90),
84 (90-102), 85 (101-107), 86 (109-111),
87 (114-123), 88 (124-130), 89 (130-137),
90 (138-142), 91 (142-146), 92 (147-150);
Texture : MOD PHYRIC, PCE 80 IS GLASSY TO FINE-GRAINED;
PCES 81+82 ARE FINE-GRAINED, PCES 83-92 ARE MEDIUM-
GRAINED;
Structure : PCE 80 IS CUT BY MANY HAIRLINE CRACKS AND FRACTURES
THAT ARE FILLED WITH BLUE GREEN CLAY;
Alteration : IN PCES 83-92 UNCUT PCES HAVE GREEN-BLUE AND
SOMETIMES BROWNISH THIN COATINGS OF CLAYS AND
OXIDES(?), GREEN FELDSPAR OCCURS IN ALTERED RIND;
Comments : COOLING UNIT 3;
Phenocrysts: PLAGIOCLASE
CLINOPYROXENE
Replacement: CLAY MINERALS
BLUE-GREEN CLAY IN FRACTURES;
CHLORITE
Minerals Replaced: PLAG
ID UNCERTAIN, PLAG EITHER ALTERED OR STAINED;
OXIDES
ID UNCERTAIN;
Leg : 70 Top/Bottom Interval(mm): 0/ 430 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 117.93
Core: 9 Top of Core Depth (m) : 114.50
Sect: 3 Top of Section Depth(m): 117.50
LITHOLOGY: PLAG-PYX MOD PHYRIC BASALT;
VERY SIMILAR TO PCES 61-69 AND 84-92;
Piece No. : PCES 93 (0-5), 94 (5-13), 95 (13-21), 96 (22-30),
97 (30-47);
Texture : MOD PHYRIC, MEDIUM-GRAINED;
Alteration : THICK (UP TO 3CM) ALTERATION ZONE WHERE PLAG
PHENOS SEEM TO BE DESTABILIZED IN CHLORITE(?) OR
SMEC(?)+?, ON THE UNCUT SURFACES FELDSPARS ARE
GREEN (PARTLY DESTABILIZED IN CHLORITE? OR SMEC?
OR?), THIN BLUE OR GREEN CLAY COATING ON THE
BROKEN FACES;
Comments : UNIT 1, PROBABLY THE END OF UNIT 3 OF CORE 9-2;
Vesicles : Size(mm): Percent: RARE
RARE VESICLES;
Phenocrysts: PLAGIOCLASE
FELDSPARS ARE GREEN (PARTLY DESTABILIZED IN
CHLORITE);
PYROXENE
Replacement: CLAY MINERALS
BLUE OR GREEN CLAY;
CHLORITE
ID UNCERTAIN;
SMECTITE
ID UNCERTAIN;
Leg : 70 Top/Bottom Interval(mm): 460/ 570 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 118.07
Core: 9 Top of Core Depth (m) : 114.50
Sect: 3 Top of Section Depth(m): 117.96
LITHOLOGY: PLAG MOD PHYRIC BASALT;
Piece No. : PCE 98 (46-52), 99 (53-57);
Texture : MOD PHYRIC, VERY FINE-GRAINED, THESE THREE FRAGMENTS
ALL HAVE A GLASSY RIND;
Structure : SEVERAL CRACKS;
Alteration : SOME FELDSPARS ARE ALTERED IN A GREEN MINERAL;
Comments : UNIT 2, PCES 98+99 ARE NOT ORIENTATED;
Phenocrysts: PLAGIOCLASE
SOME FELDSPAR ALTERED IN A GREEN MINERAL;
Leg : 70 Top/Bottom Interval(mm): 570/ 900 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 118.40
Core: 9 Top of Core Depth (m) : 114.50
Sect: 3 Top of Section Depth(m): 118.07
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PCE 100 IS THE SAME AS PCES 98+99, PCES 101-106
ARE THE SAME AS 93-97;
Piece No. : PCE 100 (57-63), 101 (63-64), 102 (64-65),
103 (67-74), 104 (75-84), 105 (84-90), 106 (87-90);
Texture : MOD PHYRIC, PCES 101-106 ARE MEDIUM-GRAINED;
Structure : CRACK IN PCE 104;
Alteration : THICK (UP TO 4CM) ALTERATION RIND WHERE PLAG
PHENOS CANNOT BE SEEN, IN PCE 104 THE ALTERATION
RIND OCCURS AROUND A CRACK;
Comments : UNIT 3;
Phenocrysts: PLAGIOCLASE
Leg : 70 Top/Bottom Interval(mm): 0/ 170 Analyst: Schrader, E.L.
Hole: 510 Sample Midpoint (m) : 123.17
Core: 10 Top of Core Depth (m) : 123.00
Sect: 1 Top of Section Depth(m): 123.00
LITHOLOGY: APHYRIC BASALT;
Piece No. : PCE 107 (1-7), 108 (10-17);
Texture : APHYRIC, GLASS OCCURS IN PCE 108 ON THE EDGE, FINE-
GRAINED;
Structure : PCE 107 IS CUT BY 2 VEINLETS OF PYRITE (5MM WIDE
AND 3CM LONG);
Comments : ENTIRE SECTION APPEARS TO BE ONE COOLING UNIT;
Vesicles : MOD VESICLULAR;
Replacement: PYRITE
IN VEINS;
Leg : 70 Top/Bottom Interval(mm): 170/ 920 Analyst: Schrader, E.L.
Hole: 510 Sample Midpoint (m) : 123.92
Core: 10 Top of Core Depth (m) : 123.00
Sect: 1 Top of Section Depth(m): 123.17
LITHOLOGY: PLAG-CPX PHYRIC BASALT;
Piece No. : PCE 109 (20-28), 110 (29-39), 111 (41-45),
112 (47-55), 113 (54-58), 114 (61-67), 115 (69-79),
116 (80-85), 117 (86-91);
Texture : PHYRIC, PCE 109 IS FINE/MEDIUM TO MEDIUM-GRAINED,
PCES 110-117 ARE MEDIUM-GRAINED, TOP OF PCE 109
IS FINER GRAINED;
Structure : PRIMARY VOIDS ARE FILLED WITH BLUE OR GREEN SMEC,
FRACTURES ARE PRESENT;
Alteration : MOD
EVERY PCE OF SECTION IS ALTERED TO SOME EXTENT,
ALTERATION RINDS IMPART A DEFINITE GREEN COLOR
TO AFFECTED PLAG CRYSTALS, EXTERIORS OF UNCUT
FACES OFTEN ARE COATED WITH THIN LAYERS OF GREEN-
BLUE SMEC, ALTERATION IS DEFINITELY CONTROLLED BY
THE FRACTURE PATTERN;
Comments : ENTIRE SECTION APPEARS TO BE ONE COOLING UNIT, NO
BOTTOM EXTENT OF THE UNIT CAN BE DEFINED;
Phenocrysts: PLAGIOCLASE
CLINOPYROXENE
Replacement: SMECTITE
GREENISH-BLUE;
Leg : 70 Top/Bottom Interval(mm): 0/ 310 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 128.31
Core: 11 Top of Core Depth (m) : 128.00
Sect: 1 Top of Section Depth(m): 128.00
LITHOLOGY: PLAG MOD PHYRIC BASALT;
Piece No. : PCE 118 (1-8), 119 (10-15), 120 (15-19),
121 (20-25), 122 (26-31);
Texture : MOD PHYRIC, MED-GRAINED;
Structure : IRREGULAR-SHAPED VOIDS FILLED BY BLUE-GREEN CLAY;
Alteration : THESE 5 PCES ARE ALTERED ENOUGH TO ALTER THE
PHENOS OF FELDSPAR (GREEN);
Comments : UNIT 1;
Vesicles :
Location: Filling: CLAY
NUMEROUS VESICLES ARE FILLED BY BLUE OR GREEN
CLAY;
Phenocrysts: PLAGIOCLASE
Replacement: CLAY MINERALS
Leg : 70 Top/Bottom Interval(mm): 330/ 390 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 128.39
Core: 11 Top of Core Depth (m) : 128.00
Sect: 1 Top of Section Depth(m): 128.33
LITHOLOGY: PLAG MOD PHYRIC BASALT;
Piece No. : PCE 123 (33-39);
Texture : MOD PHYRIC, GLASS RIM ON THE TOP, FINE-GRAINED;
Structure : SEVERAL CRACKS;
Comments : THIS PCE REPRESENTS A SMALL FLOW, UNIT 2;
Phenocrysts: PLAGIOCLASE
PHENOS OF FELDSPAR OCCUR IN THE GLASSY AREA TOO;
Leg : 70 Top/Bottom Interval(mm): 400/1000 Analyst: Laverne, C.
Hole: 510 Sample Midpoint (m) : 129.00
Core: 11 Top of Core Depth (m) : 128.00
Sect: 1 Top of Section Depth(m): 128.40
LITHOLOGY: PLAG MOD PHYRIC BASALT;
PCE 124 IS THE SAME AS PCE 123;
Piece No. : PCE 124 (40-45), 125 (47-52), 126 (53-57),
127 (58-62), 128 (64-68), 129 (69-76), 130 (77-82),
131 (85-89), 132 (90-93), 133 (94-100);
Texture : MOD PHYRIC, MEDIUM-GRAINED, NONE OF THESE FRAGMENTS
HAS A GLASSY RIM;
Structure : SOME PCES HAVE VOIDS FILLED WITH BLUE OR GREEN
CLAY, SOME PCES HAVE CRACKS WHICH ARE RELATED TO
ALTERATION;
Alteration : MOST PCES OF THIS SECTION ARE ALTERED, PLAG PHENOS
ARE TRANSFORMED IN A DARK MINERAL (CHLORITE?,
SMEC?) IN THE ALTERED PARTS, THE PCES ARE
SURROUNDED BY A THIN COATING OF GREEN OR BLUE OR
YELLOW BROWN MATERIAL;
Comments : PCE 124 REPRESENTS THE TOP OF THE FLOW, UNIT 3,
NONE OF THESE FRAGMENTS HAS A GLASSY RIM AND ARE
ORIENTED SO IT APPEARS THAT THEY ARE ONE COOLING
UNIT;
Vesicles : NUMEROUS PINPOINT VESICLES;
Phenocrysts: PLAGIOCLASE
Replacement: CLAY MINERALS
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