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Modified after Marchand, D.E. and Bartow, JA., 1979, Preliminary geologic map of Cenozoic deposits of the BelIota <br />quadrangle, California. USGS 79-664. <br />Key: <br />Qha Holocene alluvium - channel and levee deposits <br />Qu Undifferentiated alluvium and colluvium - includes Holocene, Modesto, and upper <br />Riverbank <br />Qm, Modesto formation upper member - arkosic alluvium forming Mokelumne River <br />terraces and alluvial fan; chiefly sand with minor gravel and silt; probably glacial <br />outwash <br />Qm2f Modesto formation upper member - foothill-derived alluvial silt, clay, and minor sand <br />forming terraces, upper fans, and following distrubutaries across lower fans; abundant <br />volcanic detritus <br />Qm Modesto formation lower member- arkosic alluvium forming Mokelumne River terraces <br />and alluvial fans; chiefly sand; probably glacial outwash <br />Qr3 Riverbank formation upper unit - arkosic alluvium forming Mokelumne River terraces <br />and alluvial fans; chiefly sand; probably glacial outwash <br />Qr2 Riverbank formation midde unit - arkosic alluvium forming Mokelumne River terraces <br />and alluvial fans; chiefly sand; probably glacial outwash <br />On Riverbank formation lower unit - arkosic alluvium, probably glacial outwash, and locally <br />derived sandy alluvium; chiefly sand <br />Qtl Turlock Lake formation - arkosic alluvium, probably glacial outwash in part <br />Tm Mehrten formation - andesitic conglomerate, sandstone, mudstone, and lahars <br />Geologic Map <br />Clements Storage <br />22370 N. Bezley Rd. <br />Clements, CA <br /> <br />Plate No.: 9 <br /> <br />Project No: 2114 <br /> <br />LIVE OAK <br />GEO ENVIRONMENTAL INC. <br /> <br />Date: April 9, 2021 <br /> <br />Scale: 1 in. = 0.5 mi. <br />