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r <br /> Geologic Map <br /> II' Silva Trucking <br /> 8853 Manthey Road, French Camp, California <br /> � <br /> 4 <br /> sG <br /> f �"• - <br /> + r4pr hr:_ 53 eta <br /> �•+ �} int£ <br /> �v <br /> R Explanation <br /> Map Base:California Geological Survey <br /> Qdp Quaternary Das Palos Alluvium- (formerly California Division of Mines&Geology), <br /> Flood basin deposits 1997, Geologic Map of the <br /> San Francisco-San Jose Quadrangle, <br /> Quaternary Modesto Formation- CDMG Map 5A, Scale 1:250,000. <br /> Qm Arkosic alluvium forming Mokelumne River terraces and alluvial <br /> fan,chiefly sand with minor gravel and silt;probably glacial outwash <br /> Scale <br /> Qr Quatemary Riverbank Formation-weathered reddish gravel, 0 l 2 <br /> sand,and silt forming clearly recognizable alluvial terraces and fans <br /> F11 <br /> Miles <br /> Qs Quaternary Dune Sand 1 in=5,208 ft <br /> �[ <br /> 1:625,000 <br /> J Pliocene Laguna Formation-interbedded alluvial gravel,sand <br /> PI and silt. Pebbles and cobbles of quartz and sediments are <br /> F` invariably arkosic <br /> Tertiary Mehrten Formation-sandstone,laminated siltstone, <br /> conglomerate,and tuff breccia composed almost entirely of <br /> TM <br /> r andesitic material with only small amounts of igneous and N E L O. A N D E R S O N <br /> metamorphic rock fragments <br /> A 'N D A S S 0 CA A T E S <br /> p Location of Subject Site Plate 7 <br /> �r <br />