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• consisting of t.1t5cY., rassive' reds o' even ~e::cured, r.edium-rra'_ned sand- <br />store ::hick forms conspicuous cliffs to the north of tY,e area of inves~i~a- <br />tior. (four r,~i.les); and a lo•.:er -_-'~er r.~ade up of thin sanr,stone beds and <br />interbedded shale that comprises a transition sequence above the :•:ancos <br />Shale. <br />Tire ::arcos Shale, also of Cretaceous age, is a dark bra;• to black <br />marine s'rale which has a local thic;:ness :r'ricY, ma•- exceed 2Cr0 feet, <br />Eedding strives east-r:est and dips 2prroxir~atelt* 3o south. <br />LYD OGELLOGY <br />Surface :'at=r• <br />The cronert~• lies on the dra'_nage divide bet:•:een -oberts Cz:~;:on (a <br />tributar}• of Y.a;• Gulch) and ::a;• Gulch, The Iropert•• drains well to the <br />• north and south, with al'_ drainsS_ tributar;: to i:a-- Gulch and t;:ence to <br />the L'a Flata Fiver. ;,urface 3ra_-.age f;o.:s directl~• into Foberts Can;•on <br />or i,to ;ia~: Gulch and recharges cr saturates t}:e alluvial valle;• fill of <br />:;a,° Gulch. Onl~• li::ite3 surf':ce o:aver cig}:t enter the exposed bedrock be- <br />cause of poor aquifer chargcteris:_cs. <br />The Peacoc}: Coal ;•:ine lies verticall-• above t:.e La-- Gulch and Foberts <br />Car:;: on drainages, <br />Gro•~~d Kater: <br />The for-ations •.:hich are exposed ir. the area of investig::tion (Cliff <br />:souse Sandstone and I•:enefee For:c=_t'_on) are not co^sidered adeeuate aqui fers <br />because of their poor porosit}• and lack of continuous permeabilit-:. The- <br />ph;:sical characterist'_cs of these forr.~ations are described under Geolog;•. <br />These forr.:ations have also bee.^. breached b~• erosion both up- and do•..c:dip <br />. from the a:-ea of irvesti,-;align a-d t;::s Y.ave no rater retention capabilit;/ <br /> (See Idealised Cross Section}, <br />(:) <br />