Mineral resource assessment of the Kofa National Wildlife Refuge, Arizona (original) (raw)
Related papers
Open-File Report, 1993
The Kaibab National Forest (KNF), located on the Colorado Plateau, is an area largely devoid of base-and precious-metal mineral deposits. Previous assessment of the Grand Canyon region for uranium deposits suggests that the KNF is in an area with undiscovered uranium resources comparable to the San Juan Basin, historically the most productive uranium area in the United States. Quantitative probabilistic mineral resource assessment in the KNF is only possible for uranium due to the absence of appropriate models or to the poorquality of models for other mineral deposit types (e.g., strata-bound copper, manganese deposit types, replacement iron, bedded gypsum, limestone, flagstone, ashlar, basalt, cinder, scoria, and pumice). Industrial minerals, and flagstone production in particular, have been produced in the KNF for about 100 years. Industrial minerals are the likely focus of future production.
USGS research on mineral resources, 1994; Part A, Program and abstracts
U.S. Geological Survey circular, 1994
and the Arizona Geological Society. Combining our efforts allows us to present a truly comprehensive program. Tucson was chosen as the site of the 1994 Forum in part to highlight activities of the U.S. Geological Survey (USGS) Tucson field office, our cosponsors, and the Center for Inter-American Mineral Resource Investigations (CIMRI). Tucson is also an excellent staging area for field trips, another innovation of this year's Forum. The field trips provide opportunities to explore the mining history and mineral deposits of one of the country's most important mining regions; further, they allow interaction with researchers who are reinterpreting the igneous geology of the Tucson Mountains and studying the relation of mineralization, rock type, and structural features of southeastern Arizona. The McKelvey Forum was created to enhance communication between USGS scientists and members of the private sector, academia, and other government agencies; it is one of the main outreach activities of the USGS Geologic Division. Topics for the Forums have alternated between mineral and energy resources; this Forum concentrates on mineral resource issues. Our program covers a broad spectrum of concerns-from the assessment and genesis of mineral resources to mineral-related environmental studies. A symposium on geology and mineral deposits of the southwestern United States and Mexico explores new ideas on the tectonic development and mineral endowment of this important region. Results are also presented from a USGS effort to reconstruct the tectonic history of the mineral-rich terrane of the Tucson-Mogollon corridor of eastern Arizona and western New Mexico. Another study examines the location, availability, and economics of industrial and metallic mineral deposits along the United States-Mexico border. Mineral resource and environmental assessments are an integral part of wise and responsible land and resource management plans. Representatives from the U.
Mineral resources of the Rincon wilderness study area, Pima County, Arizona
1981
Mines have been conducting mineral surveys of wilderness and primitive areas. Studies and reports of all primitive areas have been completed. 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 Acts provide 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. This report discusses the results of a mineral survey of some national forest lands in the Rincon wilderness study area, Arizona, that is being considered for wilderness designation. The area studied is in Pima County in the southeastern part of Arizona.
Mineral resources of the Aubrey Peak Wilderness Study Area, Mohave County, Arizona
1989
El Character and setting El Identified mineral resources E2 Mineral resource potential E3 Introduction E3 Location and physiography E3 Previous investigations E5 Procedures and sources of data E6 Acknowledgments E7 Appraisal of identified resources E7 Mining history E7 The Hualapai district E7 The Boriana district E9 Current leases and claims E9 Surface and mineral ownership E9 Mineral deposits and occurrences E9 Antler and Copper World copper-zinc deposits E9 Copper-zinc occurrences in the bulge and lower Boriana Canyon E10 Copper-zinc occurrences in Loki claims area E10 Boriana Canyon and Bull Canyon tungsten deposits E10 Tungsten occurrences in lower Boriana Canyon Ell Ophir and Lentz Black Rock tungsten occurrences Ell Gold-and copper-bearing quartz veins in Walnut Creek Ell Mica, feldspar, stone, and sand and gravel Ell Recommendations for additional work E12 Assessment of mineral resource potential E12 Geology E12 Geologic setting E12 Early Proterozoic stratified rocks E12 Early Proterozoic intrusive rocks E13 Structural geology E20 Geochronology E20 Massive sulfide deposits E21 Tungsten deposits in upper Boriana Canyon and Bull Canyon E21 Northwestern mineralized area E22 Drainage-sediment geochemistry E22 Rare-metal suite E24 Massive sulfide suite E32 Geochemistry of mineralized Tertiary fault near Walnut Creek E36 Recommendations for further work E36 Landsat remote sensing E36 Background E36 Interpretation E38 Possible areas of hydrothermally altered rocks E38 Gamma-ray spectrometry E38 Interpretation E38 Implications for mineral resource assessment E39 Aeromagnetic data E39 Gravity data E39 Contents Assessment of mineral resource potential Continued Mineral resource potential E39 Volcanogenic massive sulfide deposits E39 Tungsten-polymetallic vein deposits E43 Polymetallic vein deposits E44 References cited E44 Appendixes E49 Definition of levels of mineral resource potential and certainty of assessment E50 Resource/reserve classification E51 Geologic time chart E52 PLATE
1983
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 discusses the results of a mineral survey of the Mazatzal Wilderness (NF3048) and Mazatzal Wilderness Contiguous Roadless Area (3-016) in the Tonto and Coconino National Forests, Gila, Maricopa, and Yavapai Counties, Arizona. Mazatzal Wilderness was established by Public Law 88-577, September 3, 1964. The contiguous roadless 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.
Mineral resource potential map of the Hells Gate Roadless Area, Gila County, Arizona
1983
Bureau of Mines have been conducting mineral surveys of wilderness and primitive areas. A»-eas 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 b3 submitted to the President and the Congress. This report discusses the results of a mineral survey of the Hells Gate Roadless Area (3-021), Tonto National Forest, Gila County, Arizona. The area was classified as a further planning area during the Second Roadless Area Review and Evaluation (RARE II
Mineral resources of the Wabayuma Peak wilderness study area, Mohave County, Arizona
1991
El Character and setting El Identified mineral resources E2 Mineral resource potential E3 Introduction E3 Location and physiography E3 Previous investigations ES Procedures and sources of data E6 Acknowledgments E7 Appraisal of identified resources E7 Mining history E7 The Hualapai district E7 The Boriana district E9 Current leases and claims E9 Surface and mineral ownership E9 Mineral deposits and occurrences E9 Antler and Copper World copper-zinc deposits E9 Copper-zinc occurrences in the bulge and lower Boriana Canyon E10 Copper-zinc occurrences in Loki claims area E10 Boriana Canyon and Bull Canyon tungsten deposits E10 Tungsten occurrences in lower Boriana Canyon Eli Ophir and Lentz Black Rock tungsten occurrences Ell Gold-and copper-bearing quartz veins in Walnut Creek Ell Mica, feldspar, stone, and sand and gravel Ell Recommendations for additional work E12 Assessment of mineral resource potential E12 Geology E12 Geologic setting E12 Early Proterozoic stratified rocks E12 Early Proterozoic intrusive rocks E13 Structural geology E20 Geochronology E20 Massive sulfide deposits E21 Tungsten deposits in upper Boriana Canyon and Bull Canyon E21 Northwestern mineralized area E22 Drainage-sediment geochemistry E22 Rare-metal suite E24 Massive sulfide suite E32 Geochemistry of mineralized Tertiary fault near Walnut Creek E36 Recommendations for further work E36 Landsat remote sensing E36 Background E36 Interpretation E38 Possible areas of hydrothermally altered rocks E38 Gamma-ray spectrometry E38 Interpretation E38 Implications for mineral resource assessment E39 Aeromagnetic data E39 Gravity data E39 Contents V Assessment of mineral resource potential-Continued Mineral resource potential E39 Volcanogenic massive sulfide deposits E39 Tungsten-polymetallic vein deposits E43 Polymetallic vein deposits E44 References cited E44 Appendixes E49 Definition of levels of mineral resource potential and certainty of assessment E50 Resource/reserve classification E51 Geologic time chart E52 PLATE