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GEOCHRON LABORATORIES aa~:+«,dr <br />KRUEGER ENTERPRISES, INC. <br />711 CONCORD AVENUE • CAMBRIDGE. MASSACHUSETTS 02138 • U . S A <br />TELEPHONE. (617) 8763691 TELEFAX: (617) 6610146 <br />STABLE ISOTOPE RATIO ANALYSES REPORT OF ANALYTICAL WORK <br />submitteo by: Christine E. Johnston Da±e Received: 01/28/97 <br />tdountain Coal Company Date Reported: 02/20/97 <br />(Jest Elk Mine <br />P.O. 60'/. 591 YourReterence: P011 SV0212 <br />Somerset, CO 81434 <br />Our Lab. <br />Number Your Sample <br />Number <br />Description <br />bD' <br />d'a0' <br />~ HOR-92200 ISEHG F.IX31760 I~later -121 -16.1 <br /> 1-25-97 6:10 pm <br />• ~ HOR-92201 BEM Fault lit Entry 1•later -126 -123 ** -16.3 -16.4 ** <br /> 1/25/97 4:30 pm <br />HOR-92202 ••lest Elk Mine R-1 l^later -118 -15.9 <br /> 1/2.6/97 1310 <br />"OR-9?-~~?, Pest Flk Mine G-16 Llater -115 -15.7 <br /> 1/26/97 1400 <br />** ~upl?cats preparations and analyses. <br />'Unless otherwise noted, analyses are reported in L notation and arre computed as lolllavs: <br />• bRaamob~" _ ~ Raamob _1 I x 7000 <br />Rsrantl~N J <br />Where: <br />DIH standard is SMOW <br />reOrrsO starWard is SMOW <br />And: <br />D/H„~yd .0.000316" <br />~6D,r5Dahmara = 0.0079948•. <br />'Doude atom ratio <br />