Leg : 69 Top/Bottom Interval(mm): 0/ 300 Analyst: Pertsev, N.
Hole: 505B Sample Midpoint (m) : 136.30
Core: 1 Top of Core Depth (m) : 136.00
Sect: 1 Top of Section Depth(m): 136.00
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 112-1 (3-9), 113-1 (15-19), 114-1 (23-27);
Texture : MOD PHYRIC,GLASSY RIND ON EACH PCE;
Structure : PILLOW,RARE CRACKS ARE FILLED MOSTLY WITH YELLOW
SMEC & WITH SMALL(0.1-0.3MM) SPOTS OF MN.OX(?);
Alteration : FRESH
Vesicles : Size(mm): TO 1.5 Percent: <1
Location: Filling: SMEC
VESICLES ARE EITHER UNFILLED OR FILLED PARTLY WITH
YELLOW SMEC;
Phenocrysts: PLAGIOCLASE ( 4%)
Size(mm): TO 5
OLIVINE ( 2%)
Size(mm): TO 3
CLINOPYROXENE ( 0%)
Replacement: SMECTITE
YELLOW;
MANGANESE OXIDE
ID MN.OX UNCERTAIN;
Leg : 69 Top/Bottom Interval(mm): 0/1500 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 142.50
Core: 2 Top of Core Depth (m) : 141.00
Sect: 1 Top of Section Depth(m): 141.00
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 112-2 (2-9), 113-2 (11-18), 114 (19-33),
115 (36-40), 116 (42-46), 117 (48-53), 118 (55-60),
119 (63-75), 120 (76-88), 121 (78-90), 122 (92-98),
123 (99-106), 124 (107-120), 125 (123-129),
126 (131-139), 127 (141-148);
Texture : MOD PHYRIC,UNIFORMLY FINE-GRAINED,VARIOLITIC TEXTURE
ON PCE 114 INDICATES PILLOW MARGIN BUT GLASS BROKEN
OFF,GLASS MARGINS ON PCES 122+127;
Structure : PILLOW BASALT;
Alteration : FRESH TO MOD
PCES 113-2 & 115-119+123+125,OXIDATION RIMS COMMON
& APPEAR DUSKY YELLOW/ORANGE;
Comments : PCE 115 IS MUCH LIGHTER THAN OTHER ROCKS;
Vesicles : Size(mm): <1 Percent: <1
Location: Filling: CLAY.MINS,CALCITE
GREEN/BLUE CLAY.MINS & SOMETIMES CALCITE FILL
VESICLES;
Size(mm): <1 Percent: <1
Location: Filling: MN.OX
PCE 115;
Phenocrysts: PLAGIOCLASE ( TO 5%)
Size(mm): 4-5
OLIVINE ( TO 1%)
Size(mm): 1
COMBINATION
Size(mm): 4
PLAG & AUGITE GLOMEROCRYSTS;
Replacement: CLAY
GREEN/BLUE;
CALCITE
MANGANESE OXIDE
ID MN.OX UNCERTAIN;
( TR%)
PCE 115;
Leg : 69 Top/Bottom Interval(mm): 0/1450 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 143.95
Core: 2 Top of Core Depth (m) : 141.00
Sect: 2 Top of Section Depth(m): 142.50
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 128 (3-6), 129 (8-14), 130 (15-18),
131 (20-25), 132 (27-30), 133 (31-34), 134 (36-43),
135 (45-51), 136 (53-57), 137 (59-65), 138 (66-68),
139 (68-75), 140 (78-85), 141 (87-95), 142 (96-108),
143 (111-117), 144 (120-125), 145 (128-133),
146 (135-143);
Texture : MOD PHYRIC,CLEAR VARIOLITIC TEXTURE ADJACENT TO
GLASS MARGINS IN PCES 129+139+144,GLASS MARGINS ON
PCES 129+134+139+143-144;
Structure : PILLOW BASALT,PCE 135 HAS PART OF ITS SURFACE
ENCRUSTED WITH A LIGHT BROWN MATERIAL(AMORPHOUS
SILICA?) THAT IS SPAR-LIKE IN APPEARANCE;
Alteration : MOD
PCES 131+137+141-142,MN.OX(?) OCCURS AS SMALL
SPOTS ON SOME PCES(GENERALLY ON OXIDIZED
SURFACES),SEVERAL OXIDATION RIMS;
Vesicles : Size(mm): <1 Percent: <1
Location: Filling: CLAY.MINS
MORE ABUNDANT NEAR GLASS MARGINS,VESICLES MAY BE
EMPTY OR FILLED WITH BLUE/GREEN OR MILK-COLORED
CLAY.MINS-NO CALCITE,PCE 137 IS MORE VESICLULAR
THAN THE OTHERS;
Phenocrysts: PLAGIOCLASE ( 5-8%)
Size(mm): 5-6
OLIVINE ( 1-2%)
Size(mm): 1-2
OL IS FRESH,PLAG GLOMEROCRYSTS ARE 4-5MM,HIGHER
CONCENTRATION OF OL IN PCES 139+144;
Replacement: CLAY
GREEN/BLUE OR MILK-COLORED;
( RARE%)
MANGANESE OXIDE
ID MN.OX UNCERTAIN,OCCURS AS SMALL SPOTS ON SOME
PCES;
SILICA
AMORPHOUS,ID SILICA UNCERTAIN,SPAR-LIKE;
Leg : 69 Top/Bottom Interval(mm): 0/1250 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 145.25
Core: 2 Top of Core Depth (m) : 141.00
Sect: 3 Top of Section Depth(m): 144.00
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 147 (2-8), 148 (11-18), 149 (19-23),
150 (26-30), 151 (33-37), 152 (39-48), 153 (50-60),
154 (62-63), 155 (66-71), 156 (73-81), 157 (82-91),
158 (93-98), 159 (99-102), 160 (106-110),
161 (120-123);
Texture : MOD PHYRIC,GENERALLY UNIFORM IN APPEARANCE;
Structure : PILLOW BASALT,CRACK IN PCE 157 IS EMPTY;
Alteration : MOD
PCES 147-156,OXIDATION AREAS,OL FRESH EXCEPT IN
OXIDIZED AREAS WHERE SOME ALTERATION TO CLAY.MINS
OCCUR,PCES 147+150-151+154 OXIDIZED THROUGH
MAJORITY OF ROCK BUT NOT SEVERELY;
Vesicles : Size(mm): TO 1 Percent: 2
Location: Filling: CLAY.MINS,CALCITE
PCE 157 VESICULAR TO 5% & MOSTLY UNFILLED,IN REST
OF SECTION MAJORITY OF VESICLES FILLED WITH BLUE/
GREEN CLAY.MINS & CALCITE,EMPTY VESICLES INCREASE
TOWARDS PCE 162;
Phenocrysts: PLAGIOCLASE ( 5%)
Size(mm): 5
OLIVINE ( <1%)
Size(mm): 1
PLAG GLOMEROCRYSTS IN PCE 156 ARE 1CM LONG,OL
FRESH EXCEPT FOR SOME ALTERATION TO CLAY.MINS IN
OXIDIZED ZONES,OL CONCENTRATION DECREASES TOWARDS
CENTRAL PART OF CORE(AROUND PCE 156);
Replacement: CLAY
Minerals Replaced: OL
BLUE/GREEN CLAY.MINS IN OXIDIZED ZONES;
CALCITE
Minerals Replaced: OL
FOUND IN OXIDIZED ZONES;
MANGANESE OXIDE
ID MN.OX UNCERTAIN AS SPOTS ON PCES 161-162+153+
156,MN.OX FRACTURE SURFACE COATING ON PCE 153 WITH
PHIL;
PHILLIPSITE
PHIL FRACTURE SURFACE COATING ON PCE 153 WITH
MN.OX;
Leg : 69 Top/Bottom Interval(mm): 0/1500 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 152.00
Core: 3 Top of Core Depth (m) : 150.50
Sect: 1 Top of Section Depth(m): 150.50
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 163 (3-6), 164 (10-17), 165 (18-29),
166 (27-33), 167 (36-42), 168 (44-50), 169 (53-69),
170 (62-68), 171 (70-79), 172 (82-88), 173 (91-97),
174 (99-104), 175 (107-120), 176 (123-126),
177 (128-134), 178 (137-143), 179 (144-147);
Texture : MOD PHYRIC,FRESH GLASSY MARGINS PCES 164+166-168;
Structure : PILLOW BASALT;
Alteration : MOD
YELLOW/ORANGE OXIDATION ZONE PCES 169-174 WHERE OL
IS ALTERED TO YELLOW CLAY.MINS;
Comments : YELLOW PATCHES(?) ON PCE 163;
Vesicles : Size(mm): Percent: 2
Location: Filling: CLAY.MINS,CALCITE
EMPTY VESICLES IN PCES 171-173,SOME FILLED WITH
GREEN/BLUE CLAY.MINS IN FRESH ZONES & RED/BROWN IN
OXIDIZED ZONES,SOMETIMES CALCITE IS FOUND IN THE
CORE OF THE VESICLES;
Phenocrysts: PLAGIOCLASE ( 5%)
Size(mm): TO 5
OLIVINE ( 1%)
Size(mm): TO 1
OL ALTERED TO YELLOW CLAY.MINS IN OXIDIZED ZONES;
Replacement: CLAY
Minerals Replaced: OL
YELLOW IN OXIDIZED ZONES;
CLAY
BLUE/GREEN IN VESICLES;
CALCITE
MANGANESE OXIDE
ID MN.OX UNCERTAIN AS CRUST ON PCES 164-166+172;
MANGANESE OXIDE
YELLOW CRUST WITH PHIL ON PCE 170;
PHILLIPSITE
OCCURS WITH MN.OX AS CRUST ON PCE 170;
Leg : 69 Top/Bottom Interval(mm): 0/1400 Analyst: Pertsev, N.
Hole: 505B Sample Midpoint (m) : 153.40
Core: 3 Top of Core Depth (m) : 150.50
Sect: 2 Top of Section Depth(m): 152.00
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
PILLOW BASALT;
Piece No. : PCES 180 (2-13), 181 (17-23), 182 (27-31),
183 (35-39), 184 (42-49), 185 (50-60), 186 (62-76),
187 (78-92), 188 (100-112), 189 (117-124),
190 (126-131), 191 (133-137);
Texture : MOD PHYRIC,MICROLITIC IN PILLOW INTERIOR,VARIOLITIC
NEAR COOLING SELVAGES,GLASSY AT PILLOW MARGINS(PCES
182-184+189-191);
Structure : PILLOW BASALT;
Alteration : FRESH
DEVELOPED OXIDATION ZONES ALONG SOME SURFACES
(ZONE THICKNESS TO 1.5CM),YELLOW/BROWN CLAY.MINS
REPLACE GLASS;
Comments : DARK GRAY BASALT;
Vesicles : Size(mm): 1 Percent: TO 1
Location: Filling: SMEC,CLAY.MINS
LIGHT GREEN-BLUE SMEC PARTLY FILLS VESICLES,SOME
VESICLES ARE FILLED WITH BROWN & YELLOW CLAY.MINS;
Phenocrysts: PLAGIOCLASE ( 3-6%)
Size(mm): 1-3
PLAG PHENOS SELDOM TO 8MM;
OLIVINE ( 1%)
Size(mm): 1-3
Replacement: SMECTITE
LIGHT BLUE-GREEN;
CLAY
Minerals Replaced: GLASS
BROWN-YELLOW CLAY.MINS IN VESICLES & REPLACING
GLASS;
Leg : 69 Top/Bottom Interval(mm): 0/ 150 Analyst: Pertsev, N.
Hole: 505B Sample Midpoint (m) : 159.65
Core: 4 Top of Core Depth (m) : 159.50
Sect: 1 Top of Section Depth(m): 159.50
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
Piece No. : PCE 192 (3-15);
Texture : MOD PHYRIC,MICROLITIC;
Structure : CRACKS(SURFACES) COVERED WITH LIGHT GREEN & BROWN
(IN OXIDATION ZONES) SMEC;
Alteration : FRESH
Vesicles : Size(mm): TO 1 Percent:
Location: Filling: CLAY.MINS
LIGHT GREEN OR BROWN CLAY.MINS FILLS VESICLES;
Phenocrysts: PLAGIOCLASE ( 3%)
Size(mm): TO 3
OLIVINE ( 0.5%)
Size(mm): TO 2
Replacement: CLAY
LIGHT GREEN OR BROWN;
SMECTITE
LIGHT GREEN OR BROWN;
Leg : 69 Top/Bottom Interval(mm): 0/ 700 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 164.70
Core: 5 Top of Core Depth (m) : 164.00
Sect: 1 Top of Section Depth(m): 164.00
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
Piece No. : PCES 193 (2-9), 194 (10-18), 196 (20-30),
197 (30-46), 198 (49-57), 199 (59-64), 200 (65-68);
Texture : MOD PHYRIC,FRESH GLASSY MARGINS PCES 193+196;
Structure : CRACKS WITH WELL DEVELOPED OXIDATION ZONE;
Alteration : FRESH TO MOD
PCES 194-199 WITH SOME YELLOW-RED OXIDATION(WELL
DEVELOPED ALONG CRACKS),PLAG FRESH,OL GENERALLY
FRESH ALTERED TO RED CLAY.MINS IN OXIDIZED ZONE;
Comments : PCE 200 HAS YELLOW PATCHES SIMILAR TO THAT FOUND ON
PCE 163 IN CORE 3-1;
Vesicles : Size(mm): <1 Percent:
Location: Filling: CLAY.MINS
BLUE-GREEN IN FRESH AREAS & RED IN OXIDIZED ZONES;
Phenocrysts: PLAGIOCLASE ( 5%)
Size(mm): 2
OLIVINE ( 1%)
Size(mm): 1
PLAG FRESH,OL GENERALLY FRESH ALTERED TO RED
CLAY.MINS IN OXIDIZED ZONES;
Replacement: CLAY
Minerals Replaced: OL
BLUE-GREEN IN FRESH ZONE,RED CLAY.MINS IN OXIDIZED
AREAS;
CLAY
BLUE-GREEN CLAY.MINS FILL VESICLES IN FRESH AREAS,
RED CLAY.MINS IN OXIDIZED ZONES;
Leg : 69 Top/Bottom Interval(mm): 700/ 850 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 164.85
Core: 5 Top of Core Depth (m) : 164.00
Sect: 1 Top of Section Depth(m): 164.70
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
Piece No. : PCES 201 (72-77), 202 (80-85);
Texture : MOD PHYRIC,SIMILAR TO PCES 193-202 EXCEPT FOR PHENO
ABUNDANCES;
Alteration : MOD
BOTH PCES;
Phenocrysts: PLAGIOCLASE ( 2%)
OLIVINE ( RARE%)
Leg : 69 Top/Bottom Interval(mm): 850/1050 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 165.05
Core: 5 Top of Core Depth (m) : 164.00
Sect: 1 Top of Section Depth(m): 164.85
LITHOLOGY: OL-PLAG-CPX MOD PHYRIC BASALT;
Piece No. : PCES 203 (86-90), 204 (91-97), 205 (99-105);
Texture : MOD PHYRIC,SIMILAR TO PCES 193-202 EXCEPT FOR PHENO
ABUNDANCES;
Alteration : FRESH
Phenocrysts: OLIVINE ( 3%)
PLAGIOCLASE ( 2%)
CLINOPYROXENE ( 1%)
PLAG & CPX FRESH;
Leg : 69 Top/Bottom Interval(mm): 0/1500 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 170.50
Core: 6 Top of Core Depth (m) : 169.00
Sect: 1 Top of Section Depth(m): 169.00
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
Piece No. : PCES 206 (3-7), 207 (12-15), 208 (17-30),
209 (32-41), 210 (43-50), 211 (51-59), 212 (60-68),
213 (70-75), 214 (78-83), 215 (85-88), 216 (90-102),
217 (103-110), 218 (111-121), 219 (122-136),
220 (138-147);
Texture : MOD PHYRIC,MICROLITIC, NO GLASSY MARGINS;
Structure : PCE 214 HAS YELLOW SPAR-LIKE MINS(PHIL) IN ITS
CAVITIES TOGETHER WITH YELLOW CLAY.MINS & MN.OX(?),
RARE CRACKS HAVE GREEN SMEC FILLING,PCE 217 HAS
CALCITE & YELLOW CLAY.MINS FILLING CRACKS;
Alteration : FRESH TO MOD
VARIES LOCALLY,OL ALTERED TO SOME EXTENT IN
OXIDIZED AREAS,PCE 211 POROSITY POSSIBLY RESULT OF
LEACHING;
Vesicles : Size(mm): TO 1 Percent: <1
Location: Filling: CLAY.MINS
BLUE/GREEN CLAY.MINS(SOMETIMES WITH A RED RIM),PCE
207 HAS UNFILLED VESICLES;
Phenocrysts: PLAGIOCLASE ( TO 5%)
Size(mm): TO 5
OLIVINE ( TO 1%)
Size(mm): 1
OL GENERALLY FRESH BUT CAN BE ALTERED TO SOME
EXTENT IN OXIDIZED AREAS,OL CONCENTRATION VERY
SCARCE IN UPPER SECTION OF CORE;
Replacement: PHILLIPSITE
YELLOW & SPAR-LIKE PHIL FILLS CAVITIES IN PCE 214,
TRACES OF PHIL FOUND ON SEVERAL OTHER PCES;
CLAY
YELLOW CLAY.MINS IN CAVITIES OF PCE 214 & FOUND
IN PCE 217;
MANGANESE OXIDE
ID MN.OX IN CAVITIES OF PCE 214 UNCERTAIN;
SMECTITE
GREEN IN CRACKS;
CALCITE
PCE 217;
( TR%)
Leg : 69 Top/Bottom Interval(mm): 0/ 950 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 171.45
Core: 6 Top of Core Depth (m) : 169.00
Sect: 2 Top of Section Depth(m): 170.50
LITHOLOGY: PLAG-OL MOD PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCES 221 (2-12), 222 (13-19), 223 (22-27),
224 (29-35), 226 (47-56), 227 (58-62), 228 (64-67),
229 (70-78), 230 (80-85), 231 (87-92);
Texture : MOD PHYRIC,MICROLITIC,NO GLASS RIMS OR OBVIOUS
CHANGES IN GRAIN SIZE;
Structure : MASSIVE(?) BASALT,BLUE-GREEN SMEC FILLS SOME JOINTS;
Alteration : FRESH TO MOD
OL ALTERED TO SOME EXTENT IN STRONGLY OXIDIZED
AREAS SUCH AS IN PCE 231 OL ALTERED TO ORANGE OR
BLUE/GREEN CLAY.MINS,PCES 222+229 HAVE SOME MN.OX
SPOTS ON THE SURFACE,PCES 222-224 ARE HIGHLY
POROUS & SIMILAR IN APPEARANCE TO LEACHED PCE IN
CORE 6-1 EXCEPT LESS SEVERE & NOT AS MANY ADVANCED
FE STAINS IN LOCALITY;
Vesicles : Size(mm): <1 Percent: <1
Location: Filling: CLAY.MINS,CALCITE
VESICLES GENERALLY FILLED WITH BLUE/GREEN
CLAY.MINS OR SOMETIMES CALCITE;
Phenocrysts: PLAGIOCLASE ( 4%)
Size(mm): 4
OLIVINE ( 1-2%)
Size(mm): 1-2
SOME PLAG IS GLOMEROCRYSTIC,OL VERY FRESH WITH
SOME ALTERATION EVIDENT IN OXIDIZED ZONES;
Replacement: CLAY
Minerals Replaced: OL
IN STRONGLY OXIDIZED AREAS OL CONVERTED TO ORANGE
OR BLUE/GREEN CLAY.MINS;
CLAY
BLUE/GREEN FILLS VESICLES;
CALCITE
SOME PCES;
SMECTITE
BLUE/GREEN IN SOME JOINTS;
MANGANESE OXIDE
SPOTS ON PCES 222+229;
Phenocrysts: ( TR%)
Leg : 69 Top/Bottom Interval(mm): 370/ 460 Analyst: Adamson, A.C.
Hole: 505B Sample Midpoint (m) : 170.96
Core: 6 Top of Core Depth (m) : 169.00
Sect: 2 Top of Section Depth(m): 170.87
LITHOLOGY: PLAG-OL-CPX MOD PHYRIC BASALT;
MASSIVE BASALT;
Piece No. : PCE 225 (37-46);
Texture : MOD PHYRIC,SIMILAR TO REST OF SECTION EXCEPT FOR
PRESENCE OF CPX;
Alteration : FRESH TO MOD
Phenocrysts: PLAGIOCLASE ( 4%)
Size(mm): 3-4
OLIVINE ( 1-2%)
Size(mm): 1-2
CLINOPYROXENE ( <1%)
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