 | | Report (issue) | | SULFIDES OF VIRGINIA FIELD TRIP GUIDEBOOK J. E. Gair, Editor U. S. Geological Survey Reston, Virginia 22092...Caledonian Stratabound Sulphides. Massive Sulfides of Virginia Field Trip Contents Page Introduction by J.E....Piedmont of Virginia by Louis Pavlides ............. STOP 1, 8 STOP 1A. Mineral district Chopawamsic... Gair .............. 24 Ores of the Mineral district by J.R. Craig, J.W. Miller, L.J. Cox, and R.F...folds by J.E. Gair ......... 53 The Great Gossan Lead by J.R. Craig, D.K. Henry, and M.C. Gilbert. |  | | Journal (article/letter/editorial) | | theGreatGossan Lead,Virginia * DONALDK. HENRY,JAMESR. CRAm,ANDM. CHARLES GILBERT Abstract The Great Gossan Lead...sulfide pods and lenses extending over 28 km through Carroll and Grayson Counties of southwesternVirginia. The... Pyrite, except at the northeasternend of the district where it is presentas euhedralporphyroblasts,occursonly...pod and veinlike bodiesof massive pyrrhotite in Carroll and Grayson Counties, southwesternVirginia. Its...km north of Galax, Virginia, to a point approximately 10 km north of Hillsville, Virginia (Fig. 1). A |  | | Journal (article/letter/editorial) | | Geological Sciences, Virginia Polytechnic Institute and State University, Blacksburg, Virginia 24061, U.S.A....massive sulfide deposit in the Blue Ridge province in southwestern Virginia shows that sulfate minerals...environmental risk. INTRODUCTION Fe1- x S + Acid mine drainage (AMD) environments provide of a rich tapestry...sulfur, oxygen, and hydrogen. The important acid mine drainage minerals can be divided into three types:...for iron sulfate mineral transformations in acid mine drainage environments. These reactions are dehydration |
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