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Modified after Marchand, D.E. and Atwater, B.F., 1979. Preliminaiy geologic map showing Quaternary deposits of the Lodi <br />quadrangle, California. USGS OFR-79-933. <br />Key: <br />Holocene alluvium: channel, levee, and floodplain deposits; chiefly silt and clay with fine sand <br />along principal drainageways <br />Modesto formation upper member: arkosic alluvium forming Mokelumne River alluvial fan; <br />chiefly sand, becoming finer-grained toward fan toe; probably glacial outwash <br />Modesto formation upper member: arkosic sand forming low dunes on the Mokelumne River <br />fan and in the Delta; probably eolian, although not well sorted <br />Riverbank formation upper unit: arkosic alluvium forming Mokelumne River alluvial fan; chiefly <br />sand; probably glacial outwash <br /> <br />Geologic Map <br /> <br />Plate No.: 8 <br />Project No: 2132 <br />Date: July 6, 2021 <br />Scale: 1 in. = 0.5 mi. <br /> <br />Kelly Property <br />2727 E. Acampo Rd. <br />Acampo, CA <br /> <br />LIVE OAK <br />GEO ENVIRONMENTAL INC. <br /> <br />Qha <br />Qm2 <br />Qm2e <br />Qrs