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<br />amounts of gravel. <br />2. Structure <br />Coal lease applications C-22644 and C-26913 lie on t`:e <br />north-northwest plunging asymmetrical Trout Creek <br />~ (formerly Oak Creek) anticline. Beds on the flank c.^ <br />I <br />this anticlir.=_ strike tJ. SOE, and dip 15 degrees on the <br />average toward the northti:est. Another synclinal ax_s <br />trends due north, about a half mile zest of the lease <br />area, then swings northeast to join the other eastern <br />synclinal axis and continu_ northward as the Tr;entj~ile <br />Park syncline. At the proposed tracts, the north•.rest <br />flank of the Trout Creels anticline is broken by at <br />least ten northwest-trending normal faults, almost a'_1 <br />downthrown on the southwest side. Vertical displac=- <br />ments range from less than 1 to possibly more than 50 <br />feet. It is probable that coal mining in the area w_11 <br />1 reveal many more faults (Bass, Eby, and Campbell 196). <br />1 The area most effected by these faults, as far as ccal <br />mining is concerned, is in sec. 8, T. 4 N., A. 86 W., <br />(C-26913) where displacement is greatest and where <br />i there are either two faults creating a graben (more <br />than txo faults and cross-fractures), with a consequent <br />complex fracturing of coal and other rocks. <br />j The two parcels comprising coal lease application <br />•]!+ <br />l 11 <br />