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JO <br />B <br /> <br />N <br />U <br />M <br />B <br />E <br />R <br />: <br /> <br />4 <br />0 <br />3 <br />1 <br />. <br />1 <br />0 <br />0 <br /> <br /> <br /> <br /> <br /> <br />D <br />A <br />T <br />E <br />: <br /> <br />1 <br />1 <br />- <br />6 <br />- <br />1 <br />9 <br /> <br /> <br /> <br /> <br /> <br /> <br />B <br />Y <br />: <br /> <br />C <br />C <br />PLATE 3 <br />N <br />SITE <br />0 2000 <br />1"=2000' <br />REGIONAL GEOLOGIC MAP <br />MERRITT PROPERTY <br />FOOTHILL ROAD <br />PLEASANTON, CALIFORNIA <br />FOR <br />THE DESILVA GROUP <br />BASE: PORTION OF GEOLOGIC MAPS OF THE DUBLIN QUADRANGLE, CONTRA COSTA AND ALAMEDA COUNTIES, <br />CALIFORNIA, BY: DIBBLEE, T.W., AND MINCH, J.A., DIBBLEE FOUNDATION MAPS DF-164 PUBLICATION DATE: 2005 <br />EXPLANATION <br />CONTACT - DEPOSITIONAL OR <br />INTRUSIVE CONTACT, DASHED <br />WHERE APPROXIMATELY LOCATED, <br />DOTTED WHERE CONCEALED <br />FAULT - DASHED WHERE <br />APPROXIMATELY LOCATED, <br />DOTTED WHERE CONCEALED <br />STRIKE AND DIP OF BEDDING <br />STRIKE AND DIP OF OVERTURNED <br />BEDDING <br />ALLUVIAL SAND AND GRAVEL OF ARROYO LAGUNA <br />ALLUVIAL PEBBLE-COBBLE GRAVEL, CRUDELY BEDDED, <br />REDDISH-GRAY AND OF MOSTLY FRANCISCAN DETRITUS <br />CLAY SHALE OR CLAYSTONE, DARK GRAY, MICACEOUS, BEDDED, <br />INCLUDES A FEW THIN SANDSTONE LAYERS <br />SANDSTONE, LIGHT GRAY TO LIGHT BROWN TO TAN, HARD BEDDED, <br />FINE OT MEDIUM GRAINED, ARKOSIC, LOCALLY CONTAINS LARGE <br />(UP TO 1/2 M) HARD DARK BROWN CONCRETIONS <br />CONGLOMERATE, OF SMOOTH COBBLES AND PEBBLES OF GRAY <br />PROPHYRITIC METAVOLCANIC ROCKS, HARD PLUTONIC AND <br />DIORITIC ROCKS, QUARTZITE AND BLACK CHERT IN MATRIX OF <br />BROWN SANDSTONE <br />Qa <br />QTig <br />Kp <br />Kps <br />Kpc