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Mica Deposits of the Blue Ridge in North Carolina by Frank Gardner Lesure Pdf
Work done ... in cooperation with the North Carolina Department of Conservation and Development and ... the Defense Minerals Exploration Administration.
Author : United States. Bureau of Mines Publisher : Unknown Page : 912 pages File Size : 51,6 Mb Release : 1908 Category : Digital images ISBN : HARVARD:32044103134383
Geology, Geochemistry, and Mineral Resource Assessment of the Southern Nantahala Wilderness and Adjacent Roadless Areas, Rabun and Towns Counties, Georgia, and Clay and Macon Counties, North Carolina by John D. Peper,Geological Survey (U.S.) Pdf
The Southern Nantahala Wilderness and the Buzzard Knob and Southern Nantahala Roadless Areas are near one another and near the North Carolina-Georgia State line in Rabun and Towns Counties, Ga., and Clay and Macon Counties, N.C. The areas collectively span a region of polydeformed and metamorphosed rocks assigned to three major thrust sheets, from east to west the Tallulah Falls, Helen, and Richard Russell thrust sheets. Outcrop patterns and minor structures in the older sillimanite- grade Richard Russell rocks in the western part of the study area outline an earlier phase of isoclinal folding not apparent in the outcrop pattern of younger kyanite- and staurolite-grade Coweeta Group rocks immediately to the east across the Shope Fork fault in the east-central parts of the study area. Major movement on the Shope Fork fault postdates isoclinal F1 folding but preceded F2 isoclinal folding, because F1 fold traces are covered by rocks above the fault and the fault is folded by F2 folds. Later shearing along the fault occurred during F3 cross-folding. Geologic considerations and geochemical sampling and analysis suggest low potential for all mineral resources except common building stone. The potential for some other nonmetallic resources, including corundum, feldspar, sheet mica, and vermiculite, is moderate to low. These are present in limited amounts but are currently of little economic value. The small deposits of soapstone present in the areas are too impure to be considered a resource. Late Archaic-Early Woodland Indian bowl-carving sites in soapstone are an archeological heritage that might deserve conservation. Oil and gas resource potential is unknown but believed to be small. Resource potential for gold is low; for massive sulfide deposits containing some copper and zinc, it is low to moderate. There is little to no resource potential for other metals.
Documentation of the Santonian-Campanian and Austinian-Tayloran Stage Boundaries in Mississippi and Alabama Using Calcareous Microfossils by Harry J. Dowsett,Geological Survey (U.S.) Pdf
Robert D. Hatcher, Jr.,William A. Thomas,George W. Viele
Author : Robert D. Hatcher, Jr.,William A. Thomas,George W. Viele Publisher : Geological Society of America Page : 784 pages File Size : 43,9 Mb Release : 1989 Category : Science ISBN : 9780813754529
Forest Hydrology and Ecology at Coweeta by Wayne T. Swank,D.A., Jr. Crossley Pdf
Coweeta is one of the oldest continuously operating laboratories of its type in the world. For the first time, a complete review and summary of more than 50 years study of the hydrological and ecological responses of baseline and managed Southern Appalachian hardwood forests at Coweeta is now supplied by this volume. The long-term research approach represents a continuum of theory, experimentation and application using watersheds as landscape units of investigation. Thus, the information encompasses a wide range of interpretations and interests. In addition to in-depth analyses of terrestrial and stream processes, the breadth of coverage includes historical perspectives and relevance of ecosystem science to management needs. In a broader sense, the Coweeta research effort is considered from a perspective of national and international forest hydrology and ecology programs.