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CCSV 60LD MNG. CO. ID~'19-6fi9-.1254 FEB 02'94 23 16 No .026 P,15 <br />Table Z. Drainage sins sampled in this study, grouped according to deposit type. Deposit• <br />types am listed in general decreasing order of acrd-generating ca acity. Locations tun shown <br />on Figtpt 1. Abbreviations in "Drainage type" column ttre as follows: N-natural; H-historic; <br />M-modem; U-underground workings; C-collapsed tunnel: M-mine dumps; O-open-piC R- <br />under rtmtxlia6on. <br />SAMPLE Fidd ID Mlnlog Drainage type <br /> District <br />Aeid•tuifate Epithermal Ltmgfdbw Tunnel 1-ong Silverton 1{U <br />Kohler Tunnel LKP Silvsnon Fll1D <br />Dike 2 Diko 2 Summitville MD <br />Biadcscap Blectmap Summitville MO <br />RevnolOsTunnal Remolda Summitville HMU <br />igneo^a Polymeullie PennaylvaniaMieo I1enn Mgernine HI7C <br /> Godbal6 Mule Gar [.radville H[IC <br /> YaltTunnet Yak Leadvt'ae HUR <br /> Chapman Gttlch 2 t:Itap2 C+phir N <br /> Chapman Gulch 3 Chap3 Ophu HLiC <br /> Paradise Portal Par 1. Par up Ophir HIIC <br /> Paaa Me Hy PM8 Summitville HUC <br /> S. Mineral Cmk SMCS Sitrermn N <br />Adulari^-aerlelte Raw~yTarmel Raw ISottattsa HUC <br />EDlthcrmal AlphaCorairMine Al C+mde HU <br /> MLte~s Ctrak MC Cmede HU <br /> Solar,on Mine Sol Clredr li(J <br /> American Tunnd Am F.utdm HMUR <br />• <br />Central Clty-type ARO'11mod Argo Cenual Clry HU <br /> Dndd Mire Druid Cenral Clty HDR <br /> TiD•TOp Mino Gytf4 Cent®l Clty HU <br /> GambleGulch6 Gam~6 Central Clty N <br /> Idaho Mtm Idaho A. B Cenasl C1ry HUC <br />IIIt<baulflde Carbonate• Wdlingtan Mine FG B,r,~`.,,,,n~ HUD <br />hastad Kokomo Mine Kak Kokomo HUC <br />' It~dville Drain I.D [.CadvillC HUR <br /> BaMOtaMlK lsea Jilverton HUC' <br />Low.mifide Carbonate- DauntlesaMina Dau Laadvdle HU <br />hotted Ruby Mine Rub Lead~nlle IIIJ <br /> Union Creek WP Lcadvdle N <br />(:uld-telluride Carlton Tunnel Car Cripple (:reek HU <br /> Huron Hur IIdota HU <br /> Swadrmon: Swa t7dota HU <br />taken individually, as well as those of dissolved lmn, aluminum, and sulfate show generally <br />.s'rrtlilar trctlds with increasing pH as that shown by the sum of base metals. <br />The chemistries of the msne drainages srudied and their position in the mtral-pH <br />cla4sificauon scheme depend strongly upon a number of factors, including (1) proptxries of <br />specific ore deposits, such as mineralogy, aluratiotr, host rocks, structtut;, and trace elerrem <br />contents, (2} exurnal patutteuets (such as the availability of armospheric oxygen and the extent <br />of evaporation) the[ art conuollod largely by the mining method used (underground vt:raos <br />open-pit) and the prosence or absence of mine dumps, and (3) geochetnicai pttrcesses such as <br />ruineral pttcipitation and nreral sorption. <br />