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| (B) Copper deposits of the Prince William Sound district, Alaska, by F. H. Moffitand R. E. Fellows__-_...Generalized geologic map of part of the Wrangell district, southeastern Alaska__________._____________________...of Eska-Jonesville area of Wishbone Hill coal district.__________________________________________ In...diamond-drill holes on Eska reserve, Wishbone Hill coal district-______________________________________ In pocket...diamond-drill holes on Eska reserve, Wishbone Hill coal district-_.__-_-______-_______-_.. In pocket 30. A, Homer |
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| ....................................... 102 District of Columbia ......................................... 139 144 146 153 158 163 169 . 172 174 Montana..................................................to refer to Geological Survey Bulletin 507, "The mining districts of the western United States," and to...abundant it may have been completely exhausted by mining or quarrying. Deposits of minerals that are widely...because they occur in sufficient quantity to warrant mining for their usual products, but because they furnish |
 | Simmons, George Clarke, Gualtieri, J.L., Close, T.J., Federspiel, F.E., Leszcykowski, A.M., Hyndman, P.C. (1983) Mineral resource potential of the Hells Canyon Wilderness and contiguous roadless areas, Wallowa County, Oregon, and Idaho, Nez Perce, and Adams counties, Idaho. Open-File Report Vol. 1983 (83-397) US Geological Survey doi:10.3133/ofr83397 | Report (issue) |
| Wilderness and Contiguous Roadless Areas, Wallowa County, Oregon, and Idaho, Nez Perce and Adams Counties...Wilderness and contiguous roadless areas, Wallowa County, Oregon, and Idaho, Nez Perce, and Adams Counties...prospects that could be found were examined and mining records were studied to identify the location and...areas during 1974-76 (Close and others, 1982). Mining costs were estimated to determine minability and...deposited in a developing basin; locally, limestone was deposited in parts of the basin unaffected by volcam'sm |
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| RESOURCES OF KERN COUNTY CALIFORNIA CALIFORNIA DIVISION OF MINES AND GEOLOGY COUNTY REPORT 1 i y 1966... Front cover: The exceedingly varied terrain of Kern County is shown by the brown section— from McKittrick...Sierra Nevada and Owens Peak (highest point in the county); on the east (right side) is the sharp descent...MINERAL RESOURCES OF KERN COUNTY, CALIFORNIA By BENNIE W. TROXEL, mining geologist California Division...MORTON, and Geology mining geologist California Division of Mines and Geology County Report f Ferry Building |
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| - - - _ - - - _ - - - - - - - - - - 16 Redoubt district--- - - - - - - - - - - - - - - - - - - - - - -...antimony and molybdenum- - - - - - 29 Willow Creek district . . . . . . . . . . . . . . . . . . . . . . ....-------------------------------37 Chistochina district-- - - _ - - -- - - - - - - -------------- -----...-------------------------------46 48 Nelchina district- - - - -- - - - - - - - - - - - - - - - - - -...- - - - - - - - - - - - - - - - - - - - Nizina district- - - . . . . . . . . . . . . . . . . . . . . |
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| ....................... 63 22. Location map of mining districts .......................................Principal deposit types and cumulative production in mining districts.............. 13. List of mines with...Mexico. The study area lies entirely within the Basin and Range physiographic province. Figure 1 shows...distinguish the various basin-fill units as designated on the Tucson quadrangle, all basin-fill sediments were...metavolcanic rocks that accumulated in an ocean basin along the southern margin of what was then the edge |
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| GEOLOGY AND ORE DEPOSITS OF THE OCEUR D'ALENE DISTRICT, IDAHO BY RANSO~IE FREDERICK LESLIE AND FRANK...geology of northern Idaho and adjacent parts of Montana and Washington __ _ Introduction _____________________.... ..... . . 65 Structural subdivisions of the district. . ................................•.. .. ......-Structure-Continued. Structural subdivisions of the district-Continued. Page. Southeastern area ... _. ___..._________ . _..... __ ._ .... _.... __ 78 History of mining development .. ______ .. ___ . __________ . _______ |
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| Permian Wandsworth Volcanic Group Clarence· Moreton Basin Cainozoic stratigraphy . Tertiary sediments Tertiary...Complex Kookabookra • Bear Hill district Rockvale· Fishington district Deposits in and adjacent to the...Epigenetic deposits ,.. Marengo - Dundurrabin - Dorrigo district Deposits in and adjacent to the Dundurrabin Granodiorite...Taylors Ann district ,... Munga Creek district Granitoid-Related Deposits Guyra . Vralla district Llangolhlin...Adamellite Vralla Granodioirite ,..... Oban - Backwater district ;............................................ |
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| 17 Climate and vegetation. 18 _._ History of mining and present conditions___________________ 20 ...62 Younger quartz monzonite____________ ___ 64 Granite porphyry_________________________ 64 Aplite and..._______________ . Placers __ _ Mineralogy ____________ Mining districts, camps, and properties. Helvetia district_...) \ , 1 / i' Mining districts, camps, and properties Continued. Helvetia district Continued. Helvetia...prospect________________________ Peach prospect __ - _ Henrietta prospect-___________________ Ridleymine__ |
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| KC001 Site name(s): Howard; Helen Site type: Prospect ARDFno.: KC001 Latitude: 55.997 Quadrangle: KCD-1...130.064 Location description and accuracy: This prospect is at about 600 feet elevation, about 0.55 mile...1973,1977; Berg and others, 1988). The Howard prospect is in (Texas Creek) granodiorite and consists...Creek granodiorite in the Hyder district are Eocene in age. The prospect was explored in the early 1900s...veins in Texas Creek granodiorite in the Hyder District are Eocene. Deposit model: Polymetallic veins |
