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<br />EXPLANATION
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<br />Iowa ~Reworked eolian s'oi/; consists of a red clay, silt, fine sand
<br />mixture of low to moderate plasticity. Deposited as slope
<br />wash and stream fill, Derived from surrounding eolian
<br />soil mantle, Few rack fragments.
<br />
<br />r--Talus; clay, silt, sand mixture containing angular
<br />sandstone frogments.lncludes lorge blocks up to 15'in size.
<br />
<br />r--Wind deposited soil mantle; cloy, silt, fine sand mixture,
<br />red, law to moderat e plasticily, homogenous, no rock
<br />\ fragments.
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<br />IKdss~Dakota formation sandstone; tan to reddish brawn,
<br />'" medium groined;irregular bedding with lenticular
<br />~ massive beds upto 15'thick but about-Jin lenticular
<br />~._ ) beds l"t03"thick; well cemented but slighl/y weothered,
<br />Q; ../ porous and friable at surface; widely spaced irregular
<br />~ - joint ing.
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<br />I KdSht-D?kota formation shale; soft,dark gray, carbonaceous,
<br />aus/akes.
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<br />
<br />@_Estimated depth of overburden.
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<br />sketched.
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<br />418,500
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<br />UNITED STATES
<br />DEPARTMENT OF THE INTERIOR
<br />BUREAU OF RECLAMATiON
<br />
<br />DOLORES PROJECT - r;OLORA.DO
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<br />MONUMENT CREEI< DAM SITE
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<br />RECONNAISSANCE GEOLOGIC MAP
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<br />ORAWN ._J.~__________ _5UBMITTEDr!_~ _,YvU-;."til.-._ __ ___
<br />INKED__C.w.G.._ .__ ____RECOMMENCED______________ _____
<br />-::HE:CKED_:i~.'(rl-:!dk--APPRoVED--- ___ ______ _ __ _ ... . ___ __ _ u
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<br />SALT LAKE CITY, UTAH
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<br />MAY 9, 1961
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<br />71-400-17
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