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 69 505 B 1 1 0.0 136.00 136.00 136.30 PERTSEV, N. PLAG-OL MOD PHYRIC BASALTPILLOW BASALT PCES 112-1 (3-9), 113-1 (15-19), 114-1 (23-27) MOD PHYRIC,GLASSY RIND ON EACH PCE PILLOW,RARE CRACKS ARE FILLED MOSTLY WITH YELLOW SMEC & WITH SMALL(0.1-0.3MM) SPOTS OF MN.OX(?) FRESH TO 1.5 <1 SMEC VESICLES ARE EITHER UNFILLED OR FILLED PARTLY WITH YELLOW SMEC PLAG 4 TO 5 | OL 2 TO 3 | CPX 0 SMEC comments : YELLOW | MN.OX comments : ID MN.OX UNCERTAIN 69 505 B 2 1 0.0 141.00 141.00 142.50 ADAMSON, A. C. PLAG-OL MOD PHYRIC BASALTPILLOW BASALT 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) MOD PHYRIC,UNIFORMLY FINE-GRAINED,VARIOLITIC TEXTURE ON PCE 114 INDICATES PILLOW MARGIN BUT GLASS BROKEN OFF,GLASS MARGINS ON PCES 122+127 PILLOW BASALT FRESH TO MOD PCES 113-2 & 115-119+123+125,OXIDATION RIMS COMMON & APPEAR DUSKY YELLOW/ORANGE PCE 115 IS MUCH LIGHTER THAN OTHER ROCKS <1 <1 CLAY.MINS,CALCITE comments : GREEN/BLUE CLAY.MINS & SOMETIMES CALCITE FILL VESICLES | <1 <1 MN.OX comments : PCE 115 PLAG TO 5 4-5 | OL TO 1 1 | COMBINE 4 comments : PLAG & AUGITE GLOMEROCRYSTS CLAY comments : GREEN/BLUE | CALCITE | MN.OX comments : ID MN.OX UNCERTAIN | PYR TR comments : PCE 115 69 505 B 2 2 0.0 141.00 142.50 143.95 ADAMSON, A. C. PLAG-OL MOD PHYRIC BASALTPILLOW BASALT 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) MOD PHYRIC,CLEAR VARIOLITIC TEXTURE ADJACENT TO GLASS MARGINS IN PCES 129+139+144,GLASS MARGINS ON PCES 129+134+139+143-144 PILLOW BASALT,PCE 135 HAS PART OF ITS SURFACE ENCRUSTED WITH A LIGHT BROWN MATERIAL(AMORPHOUS SILICA?) THAT IS SPAR-LIKE IN APPEARANCE MOD PCES 131+137+141-142,MN.OX(?) OCCURS AS SMALL SPOTS ON SOME PCES(GENERALLY ON OXIDIZED SURFACES),SEVERAL OXIDATION RIMS <1 <1 CLAY.MINS comments : 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 PLAG 5-8 5-6 | OL 1-2 1-2 comments : OL IS FRESH,PLAG GLOMEROCRYSTS ARE 4-5MM,HIGHERCONCENTRATION OF OL IN PCES 139+144 CLAY comments : GREEN/BLUE OR MILK-COLORED | PYR RARE | MN.OX comments : ID MN.OX UNCERTAIN,OCCURS AS SMALL SPOTS ON SOME PCES | SILICA comments : AMORPHOUS,ID SILICA UNCERTAIN,SPAR-LIKE 69 505 B 2 3 0.0 141.00 144.00 145.25 ADAMSON, A. C. PLAG-OL MOD PHYRIC BASALTPILLOW BASALT 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) MOD PHYRIC,GENERALLY UNIFORM IN APPEARANCE PILLOW BASALT,CRACK IN PCE 157 IS EMPTY 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 TO 1 2 CLAY.MINS,CALCITE comments : 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 PLAG 5 5 | OL <1 1 comments : PLAG GLOMEROCRYSTS IN PCE 156 ARE 1CM LONG,OLFRESH EXCEPT FOR SOME ALTERATION TO CLAY.MINS INOXIDIZED ZONES,OL CONCENTRATION DECREASES TOWARDSCENTRAL PART OF CORE(AROUND PCE 156) CLAY OL comments : BLUE/GREEN CLAY.MINS IN OXIDIZED ZONES | CALCITE OL comments : FOUND IN OXIDIZED ZONES | MN.OX comments : ID MN.OX UNCERTAIN AS SPOTS ON PCES 161-162+153+ 156,MN.OX FRACTURE SURFACE COATING ON PCE 153 WITH PHIL | PHIL comments : PHIL FRACTURE SURFACE COATING ON PCE 153 WITH MN.OX 69 505 B 3 1 0.0 150.50 150.50 152.00 ADAMSON, A. C. PLAG-OL MOD PHYRIC BASALTPILLOW BASALT 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) MOD PHYRIC,FRESH GLASSY MARGINS PCES 164+166-168 PILLOW BASALT MOD YELLOW/ORANGE OXIDATION ZONE PCES 169-174 WHERE OL IS ALTERED TO YELLOW CLAY.MINS YELLOW PATCHES(?) ON PCE 163 2 CLAY.MINS,CALCITE comments : 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 PLAG 5 TO 5 | OL 1 TO 1 comments : OL ALTERED TO YELLOW CLAY.MINS IN OXIDIZED ZONES CLAY OL comments : YELLOW IN OXIDIZED ZONES | CLAY comments : BLUE/GREEN IN VESICLES | CALCITE | MN.OX comments : ID MN.OX UNCERTAIN AS CRUST ON PCES 164-166+172 | MN.OX comments : YELLOW CRUST WITH PHIL ON PCE 170 | PHIL comments : OCCURS WITH MN.OX AS CRUST ON PCE 170 69 505 B 3 2 0.0 150.50 152.00 153.40 PERTSEV, N. PLAG-OL MOD PHYRIC BASALTPILLOW BASALT 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) MOD PHYRIC,MICROLITIC IN PILLOW INTERIOR,VARIOLITIC NEAR COOLING SELVAGES,GLASSY AT PILLOW MARGINS(PCES 182-184+189-191) PILLOW BASALT FRESH DEVELOPED OXIDATION ZONES ALONG SOME SURFACES (ZONE THICKNESS TO 1.5CM),YELLOW/BROWN CLAY.MINS REPLACE GLASS DARK GRAY BASALT 1 TO 1 SMEC,CLAY.MINS comments : LIGHT GREEN-BLUE SMEC PARTLY FILLS VESICLES,SOME VESICLES ARE FILLED WITH BROWN & YELLOW CLAY.MINS PLAG 3-6 1-3 comments : PLAG PHENOS SELDOM TO 8MM | OL 1 1-3 SMEC comments : LIGHT BLUE-GREEN | CLAY GLASS comments : BROWN-YELLOW CLAY.MINS IN VESICLES & REPLACING GLASS 69 505 B 4 1 0.0 159.50 159.50 159.65 PERTSEV, N. PLAG-OL MOD PHYRIC BASALT PCE 192 (3-15) MOD PHYRIC,MICROLITIC CRACKS(SURFACES) COVERED WITH LIGHT GREEN & BROWN (IN OXIDATION ZONES) SMEC FRESH TO 1 CLAY.MINS LIGHT GREEN OR BROWN CLAY.MINS FILLS VESICLES PLAG 3 TO 3 | OL 0.5 TO 2 CLAY comments : LIGHT GREEN OR BROWN | SMEC comments : LIGHT GREEN OR BROWN 69 505 B 5 1 0.0 164.00 164.00 164.70 ADAMSON, A. C. PLAG-OL MOD PHYRIC BASALT PCES 193 (2-9), 194 (10-18), 196 (20-30), 197 (30-46), 198 (49-57), 199 (59-64), 200 (65-68) MOD PHYRIC,FRESH GLASSY MARGINS PCES 193+196 CRACKS WITH WELL DEVELOPED OXIDATION ZONE 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 PCE 200 HAS YELLOW PATCHES SIMILAR TO THAT FOUND ON PCE 163 IN CORE 3-1 <1 CLAY.MINS comments : BLUE-GREEN IN FRESH AREAS & RED IN OXIDIZED ZONES PLAG 5 2 | OL 1 1 comments : PLAG FRESH,OL GENERALLY FRESH ALTERED TO REDCLAY.MINS IN OXIDIZED ZONES CLAY OL comments : BLUE-GREEN IN FRESH ZONE,RED CLAY.MINS IN OXIDIZED AREAS | CLAY comments : BLUE-GREEN CLAY.MINS FILL VESICLES IN FRESH AREAS, RED CLAY.MINS IN OXIDIZED ZONES 69 505 B 5 1 70.0 164.00 164.70 164.85 ADAMSON, A. C. PLAG-OL MOD PHYRIC BASALT PCES 201 (72-77), 202 (80-85) MOD PHYRIC,SIMILAR TO PCES 193-202 EXCEPT FOR PHENO ABUNDANCES MOD BOTH PCES PLAG 2 | OL RARE 69 505 B 5 1 85.0 164.00 164.85 165.05 ADAMSON, A. C. OL-PLAG-CPX MOD PHYRIC BASALT PCES 203 (86-90), 204 (91-97), 205 (99-105) MOD PHYRIC,SIMILAR TO PCES 193-202 EXCEPT FOR PHENO ABUNDANCES FRESH 3 AG 2 X 1 PLAG & CPX FRESH 69 505 B 6 1 0.0 169.00 169.00 170.50 ADAMSON, A. C. PLAG-OL MOD PHYRIC BASALT 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) MOD PHYRIC,MICROLITIC, NO GLASSY MARGINS 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 FRESH TO MOD VARIES LOCALLY,OL ALTERED TO SOME EXTENT IN OXIDIZED AREAS,PCE 211 POROSITY POSSIBLY RESULT OF LEACHING TO 1 <1 CLAY.MINS comments : BLUE/GREEN CLAY.MINS(SOMETIMES WITH A RED RIM),PCE 207 HAS UNFILLED VESICLES PLAG TO 5 TO 5 | OL TO 1 1 comments : OL GENERALLY FRESH BUT CAN BE ALTERED TO SOMEEXTENT IN OXIDIZED AREAS,OL CONCENTRATION VERYSCARCE IN UPPER SECTION OF CORE PHIL comments : YELLOW & SPAR-LIKE PHIL FILLS CAVITIES IN PCE 214, TRACES OF PHIL FOUND ON SEVERAL OTHER PCES | CLAY comments : YELLOW CLAY.MINS IN CAVITIES OF PCE 214 & FOUND IN PCE 217 | MN.OX comments : ID MN.OX IN CAVITIES OF PCE 214 UNCERTAIN | SMEC comments : GREEN IN CRACKS | CALCITE comments : PCE 217 | PYR TR 69 505 B 6 2 0.0 169.00 170.50 171.45 ADAMSON, A. C. PLAG-OL MOD PHYRIC BASALTMASSIVE BASALT 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) MOD PHYRIC,MICROLITIC,NO GLASS RIMS OR OBVIOUS CHANGES IN GRAIN SIZE MASSIVE(?) BASALT,BLUE-GREEN SMEC FILLS SOME JOINTS 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 <1 <1 CLAY.MINS,CALCITE comments : VESICLES GENERALLY FILLED WITH BLUE/GREEN CLAY.MINS OR SOMETIMES CALCITE PLAG 4 4 | OL 1-2 1-2 comments : SOME PLAG IS GLOMEROCRYSTIC,OL VERY FRESH WITHSOME ALTERATION EVIDENT IN OXIDIZED ZONES | PYR TR CLAY OL comments : IN STRONGLY OXIDIZED AREAS OL CONVERTED TO ORANGE OR BLUE/GREEN CLAY.MINS | CLAY comments : BLUE/GREEN FILLS VESICLES | CALCITE comments : SOME PCES | SMEC comments : BLUE/GREEN IN SOME JOINTS | MN.OX comments : SPOTS ON PCES 222+229 69 505 B 6 2 37.0 169.00 170.87 170.96 ADAMSON, A. C. PLAG-OL-CPX MOD PHYRIC BASALTMASSIVE BASALT PCE 225 (37-46) MOD PHYRIC,SIMILAR TO REST OF SECTION EXCEPT FOR PRESENCE OF CPX FRESH TO MOD AG 4 3-4 1-2 1-2 X <1