64478 26 1 480 0 222.00 222.48 SAUN I PCE 6 19 1 S RT APHYRIC BASALT; 2 S TEX APHYRIC,INTERGRANULAR; 3 S WS OTHER 4 S % SILL INTERIOR* 5 G PLAG 60 1.5LATH-SHAPED 6 G % UP TO 1.5 MM LONG,APPROX COMP AN62-68,NORMALLY 7 G % ZONED,INTERSTITIAL; 8 G CPX 25 0.1-0.5ANHEDRAL 9 G % APPROX COMP AUGITE?,VERY PALE BROWN,INTERGRANULAR; 10 G MAGN 3 0.1-0.3CUBOID 11 G % ESPECIALLY IN ALTERATION AREAS; 12 G ILMENITE 3 TO 0.5ELONGATE,TRELLIS PATTERN, 13 G SKELETAL 14 G % ESPECIALLY IN ALTERATION AREAS* 15 A CLAY.MIN 10INTERSTITIAL MESOSTASIS,OL 16 A % INTERSTITIAL AND AS ANHEDRAL PSEUDOMORPHS, 17 A % REPLACING MESOSTASIS? AND POSSIBLY OL,GREEN CLAY?* 18 V 0 19 64478 27 1 450 0 231.50 231.95 SAUN I PCE 4A 16 1 S RT APHYRIC BASALT 2 S % ALTERED; 3 S TEX APHYRIC,INTERSERTAL,VESICULAR; 4 S WS OTHER 5 S % SILL INTERIOR* 6 G PLAG 40 0.2-0.8LATHS,SKELETAL 7 G % SKELETAL MICROLITES,INTERSTITIAL; 8 G CPX 10 <0.1ANHEDRAL 9 G % SOME MAY BE OL (TOO SMALL TO BE SURE); 10 G MAGN 3 0.01-0.1CUBOID,EUHEDRAL 11 G ILMENITE 3 TO 0.1ELONGATE,TRELLIS 12 A CLAY.MIN 40THROUGHOUT MESOSTASIS,OL 13 A % REPLACING MESOSTASIS? AND POSSIBLY OL* 14 V 1-1.5 <3RANDOM SPHERICAL 15 V % FILLING IS NOT-PRESERVED* 16 64478 27 1 820 0 231.50 232.32 SAUN I PCE 7 26 1 S RT APHYRIC BASALT; 2 S TEX APHYRIC,INTERGRANULAR; 3 S WS OTHER 4 S % SILL INTERIOR* 5 G PLAG 50 <0.5LATH-SHAPED 6 G % INTERSTITIAL,APPROX AN50?; 7 G CPX 10 <0.1ANHEDRAL 8 G % INTERGRANULAR,SOME MAY BE OL (TOO SMALL TO SEE); 9 G OP.MINS 5 <0.2SUBHEDRAL-EUHEDRAL 10 G % INCLUDES MAGN + ILMENITE* 11 A CARB 1VESICLES 12 A % PERCENTAGE QUESTIONABLE,POSSIBLY MORE IN 13 A % GROUNDMASS; 14 A CLAY.MIN 35INTERSTITIAL MESOSTASIS,OL 15 A % REPLACING OL IS QUESTIONABLE,IRON-RICH,GREEN IN 16 A % COLOR* 17 V TO 10 3RANDOM MESOSTASIS, OVOID 18 V VESICLES,PLAG 19 V % "COMPOUND" VESICLES (TO 10 MM) WITH SMALLER (0.5- 20 V % 1.0 MM) EMPTY VESICLES INSIDE,FILLING CONSISTS OF 21 V % COARSE-GRAINED IRON-RICH MESOSTASIS + PLAG + 22 V % VESICLES; 23 V 0.3 <1RANDOM CLAY.MIN, SPHERICAL 24 V CALCITE 25 V % "ORDINARY" VESICLES* 26 64478 40 3 500 0 336.00 339.50 SAUN I PCE 1B 27 1 S RT PLAG SPARSELY PHYRIC DOLERITE; 2 S TEX SPARSELY PORPHYRITIC,SUBOPHITIC-INTERGRANULAR; 3 S OTHER 4 S % SILL INTERIOR* 5 P PLAG 1-2 2EQUANT-TABULAR 6 P % ZONED,RARE; 7 P CPX 8 P % LARGE PYX'S MAY BE PHENOS OR GROUNDMASS PHASES* 9 G OL 0 10 G % NONE SEEN; 11 G PLAG 40 0.5-1.5LATH-SHAPED 12 G % PLAG OCCURS AS OPHITIC INCLUSIONS IN PYX AND AS 13 G % XTLS BETWEEN PYX XTLS; 14 G CPX 35 TO 4ANHEDRAL 15 G % APPROX COMP AUGITE? (PALE BROWN),TWO TYPES PRESENT 16 G % 1)LARGE (PHENOS?) IRREGULAR XTLS ENCLOSING PLAG 17 G % AND 2)SMALLER INTERGRANULAR XTLS; 18 G OP.MINS 5 0.2CUBOID,ELONGATE 19 G % INCLUDES MAGN + ILMENITE,MAGN IS CUBOID AND 20 G % ILMENITE IS ELONGATE* 21 A COMBINE 15INTERSTICES MESOSTASIS,OL,FEL 22 A % INCLUDES CLAY.MIN + ZEOLITES,REPLACES MESOSTASIS? 23 A % AND POSSIBLY OL?,MINOR ALTERATION OF FELDSPARS* 24 V 1 3INTERGRANULARCLAY.MIN, SPHERICAL 25 V ZEOLITES 26 V % ZEOLITE FILLING IS QUESTIONABLE,CLAY IS GREEN* 27 64478 41 1 820 0 345.50 346.32 SAUN I PCE 3 25 1 S RT DOLERITE; 2 S TEX APHYRIC,SUBOPHITIC-INTERGRANULAR; 3 S WS OTHER 4 S % SILL INTERIOR,ZONE OF APPARENT FELDSPAR 5 S % ACCUMULATION* 6 P CPX 7 P % SOME CPX MAY BE PHENOS* 8 G OL <5 0.3-0.8ANHEDRAL 9 G PLAG 30 TO 2ELONGATE,LATH-SHAPED 10 G % ABOUT ONE-FOURTH ARE ENCLOSED IN CPX XTLS,STRONGLY 11 G % ZONED; 12 G CPX 25 TO 3IRREGULAR,AGGREGATES 13 G % APPROX COMP AUGITE,OPTICALLY CONTINUOUS AGGREGATES 14 G % AND IRREGULAR XTLS; 15 G OP.MIN 3 <0.3IRREGULAR,ANHEDRAL 16 G % INCLUDES MAGN + ILMENITE; 17 G PYRITES 2 AGGREGATES 18 G % IDENTITY UNCERTAIN,AGGREGATES IN VEINS* 19 A COMBINE 35INTERSTICES MESOSTASIS,OL,CPX,PLAG 20 A % INCLUDES GREEN FIBROUS CLAY.MIN AND ZEOLITES?, 21 A % REPLACING MESOSTASIS? (A LOT OF WHICH APPEARS TO 22 A % HAVE BEEN LOST IN THIN SECTION PREPARATION) + OL + 23 A % SOME CPX + SOME PLAG* 24 V 0 25 64478 41 4 800 0 345.50 350.80 SAUN I PCE 1D 26 1 S RT DOLERITE; 2 S TEX APHYRIC,OPHITIC,INTERGRANULAR 3 S % OPHITIC (PLAG IN PYX) WITH ALTERED INTERGRANULAR 4 S % ZONES; 5 S WS OTHER 6 S % SILL INTERIOR* 7 P CPX 8 P % LARGE ANHEDRAL PYX XTLS MAY BE PHENOS* 9 G OL <5 0.5ANHEDRAL 10 G PLAG 30 0.5-3LATH-SHAPED 11 G % APPROX COMP AN54 (1 DETERMINED BY THE MICHAEL-LEVY 12 G % METHOD),OPHITICALLY ENCLOSED BY CPX AND 13 G % INTERSTITIAL TO CPX; 14 G CPX 40 1-4ANHEDRAL 15 G % APPROX COMP AUGITE?,LARGE XTLS AND SMALLER MORE 16 G % INTERSTITIAL GRAINS; 17 G OP.MINS 5 0.2-0.4ANHEDRAL,ELONGATE 18 G % INCLUDE MAGN + ILMENITE,DISSEMINATED,SOME ELONGATE 19 G % GRAINS OF ILMENITE* 20 A COMBINE 20INTERSTITIAL MESOSTASIS,PYX,OL,PLAG 21 A % INCLUDES GREEN CLAY.MIN + ZEOLITES,INTERSTITIAL TO 22 A % LARGE PYX XTLS,REPLACING MESOSTASIS + RIMMING PYX 23 A % + RIMMING OL + SLIGHT ALTERATION OF INTERGRANULAR 24 A % PLAG* 25 V 0 26 64478 41 6 600 0 345.50 353.60 SAUN I PCE 1E 26 1 S RT DOLERITE; 2 S TEX APHYRIC,SUBOPHITIC,GLOMEROPORPHYRITIC 3 S % GLOMEROPORPHYRITIC IS QUESTIONABLE,THE TEXTURE IN 4 S % THIS ROCK IS UNUSUAL. THE PYX AND PLAG XTLS ARE 5 S % INTERGROWN TO FORM SUBOPHITIC AND GLOMEROPHYRIC 6 S % MASSES (APPROX 3-5 MM ACROSS) ENCLOSED IN A VERY 7 S % FINE GRAINED AND VERY ALTERED MESOSTASIS OR 8 S % QUENCHED BASALT. THIS SUGGESTS THAT CPX + OL + 9 S % PLAG ARE MAINLY PHENOS; 10 S WS OTHER 11 S % SILL INTERIOR* 12 G OL 3 0.5-1.0ANHEDRAL 13 G % ADJACENT TO OR ENCLOSED BY CPX; 14 G PLAG 20 TO 3LATH-SHAPED 15 G % INTERGROWN WITH CPX AND INTERGRANULAR TO CPX; 16 G CPX 20 TO 4 17 G % APPROX COMP AUGITE,LARGE SEMI-CONTINUOUS XTLS; 18 G MAGN 3 TO 1.0SKELETAL,CUBOID 19 G % APPROX COMP TITANOMAGNETITE* 20 A COMBINE 50INTERSTITIAL MESOSTASIS 21 A % INCLUDES CLAY.MIN + ZEOLITES,INTERSTITIAL TO PYX 22 A % + PLAG GLOMEROCRYSTS,PROBABLY REPLACING A FINE 23 A % GRAINED BASALT OR A MESOSTASIS,MOSTLY LOST DURING 24 A % THIN SECTION PREPARATION* 25 V 0 26 64478 42 2 850 0 355.00 357.35 FOR I PCE 1F 24 1 S RT DOLERITE; 2 S TEX PORPHYRITIC,OPHITIC; 3 S WS OTHER 4 S % SILL INTERIOR* 5 P OL 0 6 P % NONE SEEN; 7 P PLAG 20 1LATHS 8 P % APPROX COMP AN40,OPHITICALLY ENCLOSED IN CPX; 9 P CPX 20 1-4ANHEDRAL-SUBHEDRAL 10 P % APPROX COMP AUGITE,IRREGULARLY FRACTURED* 11 G OL 0 12 G PLAG 25 <1LATHS 13 G % SMALL LATHS; 14 G CPX 5 <1ANHEDRAL 15 G % APPROX COMP AUGITE; 16 G OP.MINS 10 17 G % INCLUDES MAGN + ILMENITE* 18 A CARB 0 19 A COMBINE 20 PLAG 20 A % INCLUDES CLAY.MIN + ZEOLITES,FOUND IN AREAS OF 21 A % APHANITIC TEXTURE (QUENCHED?),REPLACING PLAG 22 A % MICROLITES* 23 V 0 24 64478 42 21160 0 355.00 357.66 SAUN I PCE 1G 34 1 S RT GABBRO; 2 S TEX GABBROIC (CUMULATE),OPHITIC,GRAPHIC,INTERSERTAL 3 S % THE TEXTURE OF THIS ROCK IS UNUSUAL BUT SIMILAR TO 4 S % 41-6-60. HOWEVER THE INTERSTITIAL MESOSTASIS IS 5 S % BETTER PRESERVED AND SEVERAL OF THE FRAGMENTS ARE 6 S % GABBROIC. ONE FRAGMENT (APPROX 12 MM LONG) 7 S % COMPRISES CUMULATE PLAG WHILE ANOTHER SHOWS A 8 S % GRAPHIC INTERGROWTH OF PLAG IN PYX; 9 S WS OTHER 10 S % SILL INTERIOR,GABBROIC INCLUSION AND ALTERED ZONE* 11 G OL 5 0.5-1.0ANHEDRAL 12 G % ASSOCIATED WITH CPX/PLAG CLUSTERS; 13 G PLAG 30 TO 5LATH-SHAPED,EQUANT,AGGREGATES 14 G % OCCURS IN AGGREGATES WITH CPX,SUBOPHITIC AND 15 G % GRAPHIC INTERGROWTHS WITH CPX,ONE CLUSTER OF PLAG 16 G % IS DEFINITELY PART OF A CUMULATE GABBRO WHICH 17 G % CONTAINS OL,APPROX COMP AN50-70; 18 G CPX 40 1-6IRREGULAR 19 G % IRREGULAR XTLS AND INTERSTITIAL TO PLAG,APPROX 20 G % COMP AUGITE; 21 G MAGN 3 <0.5 22 G MICROXLN 10 23 G % INCLUDES PLAG + CPX + FE.MINS + MESOSTASIS,VERY 24 G % FINE GRAINED MESOSTASIS COMPRISING PLAG MICROLITES 25 G % + IRON ORE + POSSIBLY CPX (NOW COMPLETELY 26 G % ALTERED),SURROUNDS GABBROIC-DOLERITIC FRAGMENTS* 27 A CLAY.MIN 10INTERSTICES MESOSTASIS 28 A % MAINLY IN THE INTERSTICES REPLACING MESOSTASIS; 29 A ZEOLITES 15INTERSTICES MESOSTASIS,FEL 30 A % MAINLY IN THE INTERSTICES REPLACING MESOSTASIS,THE 31 A % ZEOLITES FORM RADIATING CLUSTERS IN 1-2 MM 32 A % CAVITIES* 33 V 0 34 64478 42 3 930 0 355.00 358.93 SAUN I PCE 3B 26 1 S RT DOLERITE 2 S % VERY ALTERED; 3 S TEX SUBOPHITIC,INTERGRANULAR; 4 S WS OTHER 5 S % SILL INTERIOR,CLOSE TO VEIN* 6 P PLAG 7 P % LARGE (UP TO 5 MM) CPX AND PLAG INTERGROWTHS MAY 8 P % BE PHENOCRYSTIC BUT ARE LISTED IN THE GROUNDMASS; 9 P CPX 10 P % LARGE (UP TO 5 MM) CPX AND PLAG INTERGROWTHS MAY 11 P % BE PHENOCRYSTIC BUT ARE LISTED IN THE GROUNDMASS* 12 G OL 0 13 G % NONE SEEN; 14 G PLAG 40 0.5-2.5LATH-SHAPED 15 G % APPROX COMP AN60-65; 16 G CPX 20 TO 4IRREGULAR 17 G % APPROX COMP AUGITE,IRREGULAR ISOLATED XTLS 18 G % SUBOPHITICALLY ENCLOSING PLAG LATHS,ALSO 19 G % INTERGRANULAR; 20 G MAGN 1 TO 0.5ANHEDRAL 21 G ILMENITE 1 TO 0.5ELONGATE 22 A COMBINE 35INTERSTICES MESOSTASIS,OL 23 A % INCLUDES CLAY.MIN + ZEOLITES,FOUND IN INTERSTICES 24 A % BETWEEN LARGE CPX/PLAG INTERGROWTHS,REPLACING 25 A % MESOSTASIS AND POSSIBLY OL* 26 64478 43 1 990 0 364.50 365.49 FOR I PCE 1G 23 1 S RT DOLERITE TO GABBRO 2 S % COARSE DOLERITE TO MICROGABBRO; 3 S TEX PORPHYRITIC,OPHITIC; 4 S WS OTHER 5 S % SILL INTERIOR* 6 P OL 5 0.75-1ANHEDRAL-SUBHEDRAL 7 P PLAG 20 0.75-1.5LATHS 8 P % APPROX COMP AN55,SOME ZONED NORMALLY; 9 P CPX 15 1.5-3ANHEDRAL-SUBHEDRAL 10 P % APPROX COMP AUGITE,FRACTURED,OPHITICALLY ENCLOSING 11 P % PLAG* 12 G OL 0 13 G PLAG 30 0.3-0.75LATHS 14 G % SMALL LATHS; 15 G CPX 5 0.1-1ANHEDRAL 16 G % APPROX COMP AUGITE; 17 G OP.MINS 10 18 G % INCLUDES MAGN + ILMENITE* 19 A COMBINE 15INTERGRAIN CPX 20 A BOUNDARIES 21 A % INCLUDES CLAY.MIN + ZEOLITES,FOUND IN INTERGRAIN 22 A % BOUNDARIES AND AFTER CPX,BROWNISH GREEN COLOR* 23 64478 43 2 700 0 364.50 366.70 FOR I PCE 1C 23 1 S RT DOLERITE 2 S % ALTERED; 3 S TEX PORPHYRITIC,SUBOPHITIC; 4 S WS OTHER 5 S % SILL INTERIOR* 6 P OL 7 0.5-1ANHEDRAL 7 P % CORRODED; 8 P PLAG 15 1-3TABULAR LATHS,FEATHERED EDGES 9 P % STRONG ZONING; 10 P CPX 10 0.5-1ANHEDRAL 11 P % APPROX COMP AUGITE,FRACTURED ALONG CLEAVAGE AND 12 P % CORRODED* 13 G OL 10 0.1-0.5 14 G PLAG 20 0.5-1 15 G CPX 20 0.1-0.5 16 G MAGN 3 0.1-0.3ANHEDRAL 17 A CARB 5VEINLETS 18 A COMBINE 10INTERGRAIN GROUNDMASS,CPX,OL 19 A BOUNDARIES 20 A % INCLUDES CLAY.MIN + ZEOLITES,REPLACING OL IS 21 A % QUESTIONABLE* 22 V 0 23 64478 43 4 680 0 364.50 369.68 FOR I PCE 2D 23 1 S RT DOLERITE; 2 S TEX PORPHYRITIC,SUBOPHITIC 3 S % WAS OPHITIC BEFORE BREAKAGE OF CPX?; 4 S WS OTHER 5 S % SILL INTERIOR* 6 P OL 0 7 P PLAG 15 1-2LATHS 8 P % STRONG ZONING (SOME REVERSE); 9 P CPX 0 10 G OL 10 0.1-0.5ANHEDRAL 11 G PLAG 25 0.1-1LATHS 12 G % SMALL LATHS; 13 G CPX 30 0.1-0.5ANHEDRAL,GRANULAR AGGREGATES 14 G % APPROX COMP AUGITE,EXTENSIVELY FRACTURED; 15 G MAGN 5 0.1-0.3ANHEDRAL 16 G % DISSEMINATED* 17 A CARB 5VEINLETS 18 A % FILLING VEINLETS; 19 A COMBINE 10INTERGRAIN CPX,OL 20 A BOUNDARIES 21 A % INCLUDES CLAY.MIN + ZEOLITES* 22 V 0 23 64478 44 1 250 0 374.00 374.25 FOR I PCE 1C 24 1 S RT DOLERITE TO GABBRO 2 S % MICROGABBRO TO COARSE DOLERITE; 3 S TEX PORPHYRITIC,OPHITIC 4 S % CPX ENCLOSING PLAG (AT TIMES SUBOPHITIC); 5 S WS OTHER 6 S % SILL INTERIOR* 7 P OL 0 8 P % NONE SEEN; 9 P PLAG 30 1-1.5TABULAR LATHS 10 P % APPROX COMP AN40,OPHITICALLY ENCLOSED IN CPX + 11 P % SOME SUBOPHITIC PLAG AROUND SMALLER CPX; 12 P CPX 20 1-3SUBHEDRAL-ANHEDRAL 13 P % APPROX COMP AUGITE,AT TIMES FRACTURED BUT VERY 14 P % FRESH* 15 G PLAG 15 0.1-1LATHS 16 G % SMALL LATHS; 17 G CPX 15 0.1-1ANHEDRAL 18 G % APPROX COMP AUGITE; 19 G MAGN 5 20 A COMBINE 20INTERGRAIN CPX PHENOS,CPX 21 A BOUNDARIES 22 A % INCLUDES CLAY.MIN + ZEOLITES,REPLACING BOTH CPX 23 A % PHENOS AND GROUNDMASS CPX* 24 64478 44 6 580 0 374.00 382.08 FOR I PCE 1B 23 1 S RT DOLERITE 2 S % ALTERED; 3 S TEX PORPHYRITIC,OPHITIC-SUBOPHITIC; 4 S WS OTHER 5 S % SILL INTERIOR* 6 P OL 0 7 P PLAG 20 1-1.5TABULAR LATHS 8 P % APPROX COMP AN60,MOST SHOW NORMAL ZONING; 9 P CPX 10 1-4SUBHEDRAL-ANHEDRAL 10 P % APPROX COMP AUGITE* 11 G OL 0 12 G % NONE SEEN; 13 G PLAG 25 0.1-0.5 14 G CPX 10 0.1-0.5 15 G OP.MINS 5 0.1-0.3SUBHEDRAL-ANHEDRAL 16 G % INCLUDES MAGN + ILMENITE* 17 A CLAY.MIN 15INTERGRAIN CPX 18 A BOUNDARIES 19 A % AFTER CPX; 20 A ZEOLITES 15INTERGRAIN 21 A BOUNDARIES 22 V 0 23 64478 45 5 160 0 383.00 389.16 FOR I PCE 1A 19 1 S RT CPX PHYRIC DOLERITE 2 S % WEATHERED; 3 S TEX PORPHYRITIC,POIKILITIC-OPHITIC; 4 S WS OTHER 5 S % SILL INTERIOR* 6 P CPX 15 0.5-5ANHEDRAL 7 P % APPROX COMP AUGITE* 8 G PLAG 40 0.5-1.5LATHS 9 G % APPROX COMP AN50,SMALL LATHS ENCLOSED PARTLY OR 10 G % TOTALLY WITHIN LARGE CPX,ZONED; 11 G OP.MINS 5 0.1-0.5 12 G % INCLUDES MAGN + ILMENITE* 13 A CLAY.MIN 25INTERGRAIN CPX 14 A BOUNDARIES 15 A % BROWNISH GREEN; 16 A ZEOLITES 15INTERGRAIN 17 A BOUNDARIES 18 V 0 19 64478 45 51080 0 383.00 390.08 FOR I PCE 1F 24 1 S RT PLAG-CPX PHYRIC DOLERITE; 2 S TEX PORPHYRITIC,OPHITIC; 3 S WS OTHER 4 S % SILL INTERIOR* 5 P OL 0 6 P % NONE SEEN; 7 P PLAG 20 0.5-1.5LATHS 8 P % APPROX COMP AN45,WITHIN AND PROTRUDING FROM CPX; 9 P CPX 15 1-5SUBHEDRAL-ANHEDRAL 10 P % APPROX COMP AUGITE,CORRODED,APPEARS TO PARTIALLY 11 P % ENCLOSE PLAG + OPHITICALLY ENCLOSE PLAG* 12 G OL 0 13 G PLAG 30 >0.5 14 G CPX 10 0.5-1ANHEDRAL GRAINS 15 G % APPROX COMP AUGITE,CORRODED AND ISOLATED FROM 16 G % MOST PHENOS; 17 G OP.MINS <5 0.2ANHEDRAL 18 G % INCLUDES MAGN + ILMENITE,DISSEMINATED* 19 A CLAY.MIN 10INTERGRAIN CPX PHENOS 20 A BOUNDARIES 21 A ZEOLITES 10INTERGRAIN 22 A BOUNDARIES 23 V 0 24 64478 46 1 180 0 392.00 392.18 FOR I PCE 1D 27 1 S RT PLAG-CPX PHYRIC DOLERITE TO GABBRO 2 S % COARSE DOLERITE TO MICROGABBRO; 3 S TEX PORPHYRITIC,OPHITIC; 4 S WS OTHER 5 S % SILL INTERIOR* 6 P OL 0 7 P % NONE SEEN; 8 P PLAG 40 1-2.5TABULAR LATHS 9 P % APPROX COMP AN44,SOME NORMAL ZONING; 10 P CPX 20 2-5SUBHEDRAL 11 P % APPROX COMP AUGITE,MOSTLY VERY FRESH* 12 G PLAG 15 0.5-1LATHS 13 G % SMALL LATHS; 14 G CPX 5 <2ANHEDRAL 15 G % APPROX COMP AUGITE,PROBABLY FRAGMENTS OF LARGER 16 G % CPX; 17 G OP.MINS 5 0.25-0.75EUHEDRAL-SUBHEDRAL 18 G % INCLUDES MAGN + ILMENITE,LARGE EUHEDRAL-SUBHEDRAL, 19 G % DISSEMINATED* 20 A CARB 0 21 A CLAY.MIN 10INTERGRAIN CPX 22 A BOUNDARIES 23 A % AFTER SOME CPX; 24 A ZEOLITES 5INTERGRAIN 25 A BOUNDARIES 26 V 0 27 64478 46 4 750 0 392.00 397.25 FOR I PCE 1C 18 1 S RT PLAG-CPX PHYRIC DOLERITE; 2 S TEX PORPHYRITIC,OPHITIC,INTERGRANULAR; 3 S WS OTHER 4 S % SILL INTERIOR* 5 P PLAG 30 0.5-1.5TABULAR LATHS 6 P % APPROX COMP AN50,MINOR NORMAL ZONING; 7 P CPX 20 0.5-4ANHEDRAL 8 P % APPROX COMP AUGITE,PHENOCRYST FRAGMENTS* 9 G OL 5 <0.5ANHEDRAL 10 G PLAG 30 0.1-0.5LATHS 11 G % SMALL LATHS,INTERGRANULAR; 12 G OP.MINS <5 0.1-0.25SUBHEDRAL-ANHEDRAL 13 G % INCLUDES MAGN + ILMENITE,DISPERSED* 14 A COMBINE 10INTERGRAIN CPX 15 A BOUNDARIES 16 A % INCLUDES CLAY.MIN + ZEOLITES* 17 V 0 18 64478 49 3 100 0 412.00 415.10 SAUN I PCE 1B 22 1 S RT DOLERITE; 2 S TEX SUBOPHITIC-OPHITIC,INTERGRANULAR; 3 S WS OTHER 4 S % SILL INTERIOR* 5 P PLAG 6 P % LARGE CPX + PLAG INTERGROWTHS MAY BE PHENOS BUT 7 P % THEY ARE LISTED IN THE GROUNDMASS FIGURES; 8 P CPX 9 P % LARGE CPX + PLAG INTERGROWTHS MAY BE PHENOS BUT 10 P % THEY ARE LISTED IN THE GROUNDMASS FIGURES* 11 G OL 5 0.4-1.0ANHEDRAL 12 G % SURROUNDED BY CLAY.MIN; 13 G PLAG 45 0.4-1.5LATH-SHAPED 14 G % OCCURS IN PYX AND SEPARATELY; 15 G CPX 45 TO 4IRREGULAR 16 G % APPROX COMP AUGITE,LARGE OPHITICALLY CONTINUOUS 17 G % AGGREGATES AND SMALLER INTERGRANULAR XTLS; 18 G OP.MINS 2 TO 1SKELETAL 19 G % INCLUDES MAGN + ILMENITE,SKELETAL AND FRAGMENTED* 20 A CLAY.MIN 5INTERSTITIAL MESOSTASIS,OL,MICAS 21 A % REPLACING MESOSTASIS AND MICAS IS QUESTIONABLE* 22 64478 50 5 550 0 419.00 425.55 SAUN I PCE 1D 15 1 S RT DOLERITE; 2 S TEX OPHITIC-POIKILITIC,INTERGRANULAR; 3 S WS OTHER 4 S % SILL INTERIOR* 5 G OL 5 0.3-1.0ANHEDRAL 6 G % SOME ENCLOSED IN CPX; 7 G PLAG 50 0.3-2.0LATH-SHAPED,TABULAR 8 G % APPROX COMP AN55-60; 9 G CPX 40 0.3-5.0ANHEDRAL 10 G % LARGE ANHEDRAL XTLS ENCLOSING PLAG + RARE OL AND 11 G % ALSO SMALLER INTERGRANULAR XTLS; 12 G OP.MINS 1 0.1-0.3IRREGULAR 13 G % INCLUDES MAGN + ILMENITE* 14 A CLAY.MIN 5INTERSTITIAL MESOSTASIS,OL 15 64478 51 3 480 0 428.00 431.48 SAUN I PCE 1D 17 1 S RT GABBRO; 2 S TEX OPHITIC 3 S % WITH 10% MESOSTASIS; 4 S WS OTHER 5 S % XENOLITH IN DOLERITE SILL* 6 G OL 5 1-2ROUNDED,ANHEDRAL 7 G % PARTLY ALTERED; 8 G PLAG 30 0.5-3LATH-SHAPED 9 G % ENCLOSED IN PLAG; 10 G CPX 55 1-10ANHEDRAL 11 G % APPROX COMP AUGITE,OPHITICALLY ENCLOSES PLAG; 12 G ILMENITE 3 0.5-1.0ELONGATE 13 G % POSSIBLY TITAN.MT* 14 A CLAY.MIN 5INTERSTICES MESOSTASIS,OL 15 A ZEOLITES 5INTERSTICES MESOSTASIS,FEL 16 A % RARELY REPLACING FEL* 17 64478 51 31110 0 428.00 432.11 SAUN I PCE 1I 22 1 S RT DOLERITE; 2 S TEX OPHITIC-INTERGRANULAR; 3 S WS OTHER 4 S % SILL INTERIOR* 5 P PLAG 6 P % LARGE CPX/PLAG INTERGROWTHS MAY BE PHENOS BUT ARE 7 P % INCLUDED IN THE GROUNDMASS FIGURES; 8 P CPX 9 P % LARGE CPX/PLAG INTERGROWTHS MAY BE PHENOS BUT ARE 10 P % INCLUDED IN THE GROUNDMASS FIGURES* 11 G OL 10 0.5-1.0ROUNDED,ANHEDRAL 12 G % OCCASIONALLY ENCLOSED IN CPX; 13 G PLAG 50 0.5-1.5LATH-SHAPED 14 G % OCCASIONALLY ENCLOSED IN CPX; 15 G CPX 30 1-6 16 G % APPROX COMP AUGITE?;LARGE XTLS WITH OPHITIC PLAG 17 G % AND SMALLER INTERGRANULAR XTLS; 18 G MAGN 5 TO 1SKELETAL 19 G % APPROX COMP TITAN.MT?,RESORBED XTLS* 20 A CLAY.MIN 5INTERSTICES MESOSTASIS,OL 21 A % REPLACING MESOSTASIS IS QUESTIONABLE* 22 64478 51 4 300 0 428.00 432.80 SAUN I PCE 1B 25 1 S RT GABBRO; 2 S TEX OPHITIC-SUBOPHITIC; 3 S WS OTHER 4 S % XENOLITH INSIDE DOLERITIC SILL* 5 P PLAG 30 1-3TABULAR LATHS,RADIATING FIBER 6 P % TABULAR LATHS AND QUENCHED MICROLITES WITH 7 P % RADIATING FIBERS; 8 P CPX 15 1-4 9 G OL 4 0.5-1ROUNDED,ANHEDRAL 10 G % ROUNDED ANHEDRAL GRAINS,REPLACED BY CLAY IN 11 G % PLACES; 12 G PLAG 30 0.2-1LATHS,ROUND,RADIATING FIBERS 13 G % ROUND MICROLITES WITH RADIATING FIBERS,SOME QUENCH 14 G % TEXTURED MICROLITES + SMALL LATHS; 15 G CPX 5 0.2-0.5 16 G % APPROX COMP AUGITE; 17 G OP.MINS 10 0.25-6TABULAR,SUBHEDRAL 18 G % INCLUDES MAGN + ILMENITE,LARGE AND LONG (4-6 MM) 19 G % NEEDLES* 20 A COMBINE 10INTERGRAIN CPX 21 A BOUNDARIES 22 A % INCLUDES BROWNISH GREEN CLAY.MIN + CLEAR FIBROUS 23 A % ZEOLITES,AFTER CPX* 24 V 0 25 64478 51 61130 0 428.00 436.63 SAUN I PCE 1H 22 1 S RT DOLERITE; 2 S TEX OPHITIC; 3 S WS OTHER 4 S % SILL INTERIOR* 5 P PLAG 6 P % CPX + PLAG AGGREGATES MAY BE PHENOS BUT ARE 7 P % INCLUDED IN THE GROUNDMASS FIGURES; 8 P CPX 9 P % CPX + PLAG AGGREGATES MAY BE PHENOS BUT ARE 10 P % INCLUDED IN THE GROUNDMASS FIGURES* 11 G OL 4 0.5-1ANHEDRAL,ROUNDED 12 G % SHOWING ALTERATION TO CLAY; 13 G PLAG 55 0.5-3LATH-SHAPED 14 G % USUALLY ENCLOSED IN CPX; 15 G CPX 35 1-5IRREGULAR,AGGREGATES 16 G % APPROX COMP AUGITE,LARGE IRREGULAR XTLS AND 17 G % OPTICALLY CONTINUOUS AGGREGATES; 18 G MAGN 1 0.3IRREGULAR,SUBHEDRAL 19 A CLAY.MIN 5INTERGRANULARMESOSTASIS,OL,FEL 20 A % REPLACING MESOSTASIS IS QUESTIONABLE,INCIPIENT 21 A % ALTERATION OF FELSPARS* 22 64478 52 6 850 0 437.00 445.35 SAUN I PCE 1D 19 1 S RT DOLERITE; 2 S TEX SUBOPHITIC-INTERGRANULAR; 3 S WS OTHER 4 S % SILL INTERIOR* 5 P PLAG 6 P % LARGE PLAG-CPX INTERGROWTHS MAY BE PHENOS; 7 P CPX 8 P % LARGE PLAG-CPX INTERGROWTHS MAY BE PHENOS* 9 G OL 5 0.3-0.6ROUNDED,ANHEDRAL 10 G % PARTIAL ALTERATION TO CLAY; 11 G PLAG 40 0.5-1.5LATH-SHAPED 12 G % LARGER ONES TEND TO BE IN CPX; 13 G CPX 20 0.3-3 14 G % LARGER CPX CONTAIN PLAG (OPHITIC),ALSO SOME 15 G % INTERGRANULAR CPX; 16 G MAGN 3 0.3-0.5ANHEDRAL,SKELETAL 17 A CLAY.MIN 30INTERSTITIAL MESOSTASIS,OL 18 A % REPLACING MESOSTASIS IS QUESTIONABLE,GREEN* 19 64478 53 4 280 0 446.00 450.78 SAUN I PCE 1B 22 1 S RT APHYRIC BASALT 2 S % OR DOLERITE; 3 S TEX APHYRIC,INTERGRANULAR-DOLERITIC,COARSE; 4 S WS OTHER 5 S % SILL INTERIOR* 6 P PLAG <1 2TABULAR 7 P % ZONED* 8 G OL 0 9 G % NONE SEEN; 10 G PLAG 50 0.3-1.5LATH-SHAPED 11 G % APPROX COMP AN55-60,LATH-SHAPED AND INTERSTITIAL, 12 G % FRESH; 13 G CPX 30 0.2-1.5IRREGULAR,ANHEDRAL 14 G % APPROX COMP AUGITE,SUBOPHITIC AND INTERGRANULAR; 15 G OP.MINS 4 0.1-0.5CUBOID-SKELETAL 16 G % INCLUDES MAGN + ILMENITE,INTERGRANULAR* 17 A CLAY.MIN 10INTERGRANULARMESOSTASIS 18 A % REPLACING MESOSTASIS IS QUESTIONABLE,BROWN, 19 A % ORE-RICH; 20 A MICA 5INTERGRANULAR 21 A % BIOTITE?,NOT KNOWN WHAT IS BEING REPLACED* 22 64478 54 1 760 0 455.00 455.76 FOR I PCE 4B 14 1 S RT CPX-OL PHYRIC BASALT; 2 S TEX PORPHYRITIC,INTERSERTAL,MEDIUM-GRAINED; 3 S WS OTHER 4 S % LOWER MARGIN OF SILL* 5 P OL 10 <0.5SUBHEDRAL-ANHEDRAL 6 P % MICROPHENOS; 7 P CPX 10 <0.5SUBHEDRAL-ANHEDRAL 8 P % MICROPHENOS* 9 G PLAG 30 0.3LATHS 10 G % SMALL LATHS; 11 G OP.MINS <5 12 G % INCLUDES MAGN + ILMENITE* 13 A CLAY.MIN 45 GLASS 14 64478 54 2 500 0 455.00 457.00 SAUN I PCE 1B 18 1 S RT APHYRIC BASALT 2 S % BADLY ALTERED; 3 S TEX APHYRIC,INTERSERTAL-INTERGRANULAR; 4 S WS OTHER 5 S % SILL INTERIOR* 6 G OL 0 7 G % NONE SEEN; 8 G PLAG 25 0.1-0.5LATHS 9 G % SHORT SMALL LATHS; 10 G CPX 20 0.1-0.6 11 G % APPROX COMP AUGITE,SMALL INTERGRANULAR XTLS AND 12 G % LARGER OPHITIC XTLS ENCLOSING SOME PLAG; 13 G OP.MINS 5 <0.1ANHEDRAL 14 G % INCLUDES MAGN + ILMENITE* 15 A OTHER 50INTERSTITIAL IRREGULAR 16 A % A VOID WHICH WAS PROBABLY CLAY.MIN NOW LOST BY 17 A % THIN SECTION PREPARATION* 18 64478 54 2 820 0 455.00 457.32 FOR I PCE 3A 20 1 S RT CPX-OL-PLAG PHYRIC BASALT; 2 S TEX PORPHYRITIC,EQUIGRANULAR,FINE-GRAINED; 3 S WS OTHER 4 S % SILL CONTACT* 5 P OL 5 0.1-0.3ANHEDRAL 6 P % POSSIBLY CPX (TOO SMALL TO SEE),MICROPHENOS; 7 P PLAG <3 0.5LATHS 8 P % MICROPHENOS,BLOCKY INTERGROWN LATHS,ZONED,IN LOWER 9 P % UNIT; 10 P CPX 10 0.1-0.3ANHEDRAL 11 P % MICROPHENOS* 12 G PLAG 50 <0.1LATHS 13 G % SMALL TINY LATHS IN MESOSTASIS; 14 G OP.MINS 5 15 G % INCLUDES MAGN + ILMENITE; 16 G GLASS <5 17 A COMBINE 30MESOSTASIS 18 A % INCLUDES CLAY.MIN + ZEOLITES* 19 V 0 20 64478 54 21000 0 455.00 457.50 FOR I PCE 4A 18 1 S RT APHYRIC BASALT; 2 S TEX APHYRIC,INTERGRANULAR-INTERSERTAL; 3 S WS OTHER 4 S % SILL MARGIN* 5 G OL 0 6 G % NONE SEEN; 7 G PLAG 30 0.2-1.0ELONGATE LATHS 8 G % APPROX COMP AN60-65; 9 G CPX 30 0.3-1.0IRREGULAR 10 G % APPROX COMP AUGITE,OPTICALLY CONTINUOUS XTLS, 11 G % LARGER XTLS SUBOPHITICALLY ENCLOSE PLAG; 12 G MAGN 2 0.1-0.2CUBOID-SUBHEDRAL 13 G % APPROX COMP TITAN.MT,INTERGRANULAR 14 G MESOSTAS 40 15 G % APHANITIC,ALTERED* 16 A COMBINE 40INTERGRANULARMESOSTASIS 17 A % INCLUDES CLAY.MIN + ZEOLITES* 18 64478 54 21300 0 455.00 457.80 SAUN I PCE 4D 18 1 S RT APHYRIC BASALT; 2 S TEX APHYRIC,INTERSERTAL-INTERGRANULAR; 3 S WS OTHER 4 S % SILL INTERIOR* 5 P PLAG <1 1ANHEDRAL 6 P % RESORBED,ZONED* 7 G PLAG 35 0.3-1.5LATHS 8 G CPX 30 0.2-0.6ANHEDRAL 9 G % APPROX COMP AUGITE?,SOME LARGER XTLS 10 G % SUBOPHITICALLY ENCLOSE PLAG; 11 G MAGN 1 <0.3CUBOID-ELONGATE 12 A CARB 1VESICLES MESOSTASIS 13 A % CALCITE IN VESICLES,POSSIBLY SOME CARB IN 14 A % MESOSTASIS REPLACEMENT; 15 A CLAY.MIN 30INTERSTICES MESOSTASIS,CPX 16 A % SOME ALTERATION OF CPX?,GREEN CLAY* 17 V 1.0-1.5 1RANDOM CALCITE SPHERICAL 18 64478 54 3 10 0 455.00 458.01 SAUN I PCE 1A 17 1 S RT PLAG SPARSELY PHYRIC BASALT; 2 S TEX SPARSELY PORPHYRITIC,INTERGRANULAR-INTERSERTAL; 3 S WS OTHER 4 S % SILL INTERIOR* 5 P PLAG 1 2.5-3.0LATH-SHAPED 6 P % SLIGHTLY ZONED,RESORBED* 7 G OL 0 8 G % NONE SEEN; 9 G PLAG 30 0.2-1.0LATH-SHAPED 10 G % APPROX COMP AN60-65; 11 G CPX 20 0.2-0.6ANHEDRAL 12 G % APPROX COMP AUGITE,MORE OR LESS EQUIDIMENSIONAL 13 G % WITH PLAG* 14 A CLAY.MIN 50INTERGRANULARMESOSTASIS,CPX 15 A % GREENISH; 16 A PYRITE <1VEIN 17 64478 54 4 00 0 455.00 459.50 FOR I PCE 1A 19 1 S RT CPX MODERATELY PHYRIC BASALT 2 S % SIMILAR TO PIECE 1B OF THIS SECTION (SEE 3 S % DESCRIPTION)--PERHAPS A LITTLE MORE ALTERED; 4 S TEX MODERATELY PORPHYRITIC,INTERSERTAL-APHYRIC; 5 S WS OTHER 6 S % SILL MARGIN* 7 P CPX 5 0.5-1.5ANHEDRAL 8 G OL 5 0.1-0.3ANHEDRAL 9 G % POSSIBLY ALL CPX?; 10 G PLAG 15 <0.5LATHS 11 G % SMALL LATHS; 12 G CPX 5 0.1-0.3ANHEDRAL 13 G OP.MINS 5 0.1-0.2 14 G % INCLUDES MAGN + ILMENITE,DISPERSED; 15 G GLASS 65 16 G % TOTALLY ALTERED TO CLAY.MIN + ZEOLITES* 17 A COMBINE 65MESOSTASIS GLASS 18 A % INCLUDES CLAY.MIN + ZEOLITES* 19 64478 54 4 500 0 455.00 460.00 FOR I PCE 1B 17 1 S RT CPX MODERATELY PHYRIC BASALT; 2 S TEX MODERATELY PORPHYRITIC,INTERSERTAL-APHYRIC; 3 S WS OTHER 4 S % SILL MARGIN* 5 P CPX 5 0.5-1.5ANHEDRAL 6 G OL 5 0.1-0.3ANHEDRAL 7 G % POSSIBLY ALL CPX?; 8 G PLAG 15 <0.5LATHS 9 G % SMALL LATHS; 10 G CPX 5 0.1-0.3ANHEDRAL 11 G OP.MINS 5 0.1-0.2 12 G % INCLUDES MAGN + ILMENITE,DISPERSED; 13 G GLASS 65 14 G % TOTALLY ALTERED TO CLAY.MIN + ZEOLITES* 15 A COMBINE 65MESOSTASIS GLASS 16 A % INCLUDES CLAY.MIN + ZEOLITES* 17