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F. G. Lesure

Publications and source records attributed to F. G. Lesure.

At least 37 records · Page 2Linked to original sources
USGS1984

Geochemical survey of the Adams Gap and Shinbone Creek Roadless Areas, Clay County, Alabama

The U.S. Geological Survey (USGS) made a reconnaissance geochemical survey of the Adams Gap and Shinbone Creek Roadless Areas (fig. 1) to test for unidentified, indistinct, or unexposed mineral deposits that might be recognized by their geochemical halos or patterns formed by the distribution of trace elements. Similar geochemical surveys based on trace element analyses have been credited with the discovery of many types of ore deposits (Rose and others, 1979). No metallic-mineral deposits are reported in the rocks of the study area, and none were found during the reconnaissance geologic mapping. However, in the vicinity of the study area, the same sequence of rocks contains abandoned prospects for manganese, iron, and pyrite. Reports covering the mineral resources of Clay County and vicinity include Brewer (1896) and Adams (1930) on gold, Prouty (1923) on graphite, and Heinrich and Olson (1953) on mica. The mineral resources of the Talladega National Forest were evaluated by Gilbert and Smith (1973). The mineral resource potential of the two roadless areas is detailed in Robinson and others (1983) and an accompanying geologic report is given in Robinson and others (in press).

Alabama↗
USGS1983

Analyses and descriptions of geochemical samples, Snowbird Roadless Area, Graham County, North Carolina

Semiquantitative spectrographic analyses for 31 elements on 53 stream-sediment, 13 panned-concentrate, 116 soil, and 113 rock samples from Snowbird Roadless Area and vicinity, Nantahala National Forest, Graham County, N. C., are reported here in detail. Atomic-absorption analyses for gold and zinc in all samples and fluorometric analyses for uranium in rock samples are al, so reported. Localities for all samples are given in Universal Transverse Mercator (UTM) coordinates. Brief descriptions of rock samples are also included. Rocks analyzed include metasandstone, graphitic slate, metagraywacke, mica-garnet schist, pseudodlorite, and vein quartz.

Open-File Report↗
USGS1982

Mineral resource potential map of the Shining Rock Wilderness, Haywood County, North Carolina

The Shining Rock Wilderness is in the Blue Ridge Mountains of Haywood County, N. C., and is underlain by complexly folded, high-grade metamorphic rocks. These rocks contain a few small, subeconomic deposits of sheet muscovite mica that have a small potential for scrap mica. Quartz as a source of silica (SiO2) and gneiss and schist suitable for common building stone and crushed rock are the only identified economic mineral resources. Other minerals and rocks, including kaolin, soapstone, copper, corundum, and dunite, have been prospected or mined nearby, but either they do not occur or have no current economic potential in the wilderness. A possibility exists for the presence of natural gas at depths greater than 5,000 ft (1,500 m).

North Carolina↗
USGS1982

Mineral resource potential map of the Ramseys Draft Addition, Augusta and Highland counties, Virginia

Under the provisions of the Wilderness Act (Public Law 88-577, September 3, 1964) and the Joint Conference Report on Senate Bill 4, 88th Congress, the U.S. Geological Survey and the U.S. Bureau of Mines have been conducting mineral surveys of wilderness and primitive areas. Areas officially designated as "wilderness," "wild," or "canoe" when the act was passed were incorporated into the National Wilderness Preservation System, and some of them are presently being studied. The act provided that areas under consideration for wilderness designation should be studied for suitability for incorporation into the Wilderness System. The mineral surveys constitute one aspect of the suitability studies. The act directs that the results of such surveys are to be made available to the public and be submitted to the President and the Congress. This report presents the results of a mineral survey of the Ramseys Draft Addition, which is a roadless area adjoining Ramseys Draft Wilderness Study Area in the George Washington National Forest, Augusta and Highland Counties, Virginia. The area was classified as a further planning area during the Second Roadless Area Review and Evaluation (RARE II) by the U.S. Forest Service, January 1979.

Virginia↗