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%) |
Cite as: Deep Sea Drilling Project (1989): Archive of Core and Site/Hole Data and Photographs from the Deep Sea Drilling Project (DSDP). National Geophysical Data Center, NOAA. doi:10.7289/V54M92G2 [access date]
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