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�./ 4 KLEI NFELDER <br /> 4 <br /> TABLE 8 <br /> REGIONAL GEOLOGY <br /> REGIONAL The.site is in the western part of the Great Valley Geomorphic Province of California. <br /> GEOLOGY The valley is 400 miles long, 50 miles wide, and comprises approximately 20,000 square <br /> �. miles. The valley has been filled with a thick sequence of marine and nonmarine <br /> sediments from the late Jurassic to Holocene. The uppermost strata of the Great Valley <br /> represents, for the most part, the alluvial, flood, and delta plains of two major rivers <br /> (Sacramento and San Joaquin Rivers)and their tributaries. <br /> V <br /> The valley deposits are derived from the Coast Ranges to the west and the Sierra Nevada <br /> to the east. Granitic and metamorphic rocks outcrop along the eastern and southeastern <br /> flanks of the valley. Marine sedimentary rocks outcrop along most of the western, <br /> southwestern, southern, and southeastern flanks; and volcanic rocks and deposits outcrop <br /> along the northeastern flanks of the valley. The valley geomorphology includes dissected <br /> uplands, low alluvial plains and fans, river flood plains and channels, and overflow lands <br /> and lake bottoms. <br /> g 4.3. USER PROVIDED INFORMATION <br /> L <br /> Y There is no user provided information regarding this site. <br /> L <br /> L <br /> r <br /> 20-4019-08.P01/201IR1314 Page 12 of 28 <br /> Copyright 2001 Kleinfelder,Inc. October 26,2001 <br /> L <br />