 | | Journal (article/letter/editorial) | | magmatic-hydrothermal and hydromag- the Cabeza de Vaca district (Sillitoe and Sawkins, matic processesand therefore...deposit Childs-Aldwinklepipe in the Copper Creek district typesare generallyabsentfrom arc terranes,amag-...volcanics ada Golden Sun- light, Montana Victoria, Nevada Copper Creek, Calcareous sedi- ments,latite...entedby tourmalineand a brecciapipe.Yabricoya district,Chile.Geologypickhandleas sericitizedalongfra...dSawkins,1983), Childs-Aldwinkle,Copper Creek district (Kuhn, 1941), and Los Verdes, Buena in an exceptionally |  | | Report (issue) | | ........................ Occurrence model for enargite-gold deposits, by R. P. Ashley............. Model...of the Southeast Missouri base metal and barite district, by A. V. Heyl..................................structures containing Pags 3 Examples^ Skelletaa District, Sweden Hljura-Kotalenti Belt, Finland Thompson...by feults. aerpentine margina, rodingite (dense white rocka) suggests tectonic emplacement -Rocka are...the Langmuir deposit in Canada and the Kambalda district in Australia. Favorable targets for domestic deposits |  | | Report (volume) | | Arizona, southeastern California, and southernmost Nevada 53 Schematic diagram showing structural position...The data for each deposit include placer type, mining method(s), production history, bedrock source,...the three deposit types. Tabulated data for each district include tonnage, grades, basement rocks, and references...emplacement of the host rock; the size of the district; the temperatures of mineral deposition; the chemical...placers. However, when these data were coupled with mining methods, estimates could be made of the amount |  | | Book | | RESOURCES Methods of Assessment and Results 11. R.G. TAYLOR GEOLOGY OF TIN DEPOSITS 12. H.K.GUPTA GEOTHERMAL...Netherlands. Special regulations for readers in the USA — This publication has been registered with the Copyright...made in the USA. All other copyright questions, including photocopying outside of the USA, should be referred...J ■I p r e s e n t l i m i t of 1 underground mining ■■1 1 •H CO CO cd •H cd \ i 4-1 •H c ...granodiorite composed of white, creamy or greenish plagioclase; creamy to pink or also white potash feldspar; |  | | Book | | RESOURCES Methods of Assessment and Results 11. R.G. TAYLOR GEOLOGY OF TIN DEPOSITS 12. H.K.GUPTA GEOTHERMAL...Netherlands. Special regulations for readers in the USA — This publication has been registered w i t h the...made in the USA. A l l other copyright questions, including photocopying outside of the USA, should be...u n d e r g r o u n d 1 of QJ · · u , Ό mining 1 1 IL··I _ l ~ U C > cd rH cd 3 1 "1...granodiorite composed of white, creamy or greenish plagioclase; creamy to pink or also white potash feldspar; |  | | Report (issue) | | limestone or dolomite. It is a useful ore guide in many mining districts UNITED STATES GOVERNMENT PRINTING OFFICE........... Characteristics of jasperoid in major mining districts of the United States ..................................................... Tri-State district, Oklahoma, Kansas, and Missouri ................Clifton-Morenci district, Arizona .............................. Bisbee (Warren) district, Arizona ........ Ely (Robinson) district, Nevada .............................. Leadville district, Colorado ...... |  | | Book | | EXPLORATION SELECTION OF REGION SELECTION OF DISTRICT o o o t> o o [ 1 reconnaissance exploration...of magnitude: region: greater than 5000 km2 ; district: 500-5000 km 2 ; area: 5—50 km 2 ; target: less...using existing knowledge. For example, in a known mining area a particular lithological structural unit...between a region and a district is necessarily somewhat arbitrary. In general a district should be regarded...mineralization will usually guide the selection of a district, and the choice may be dictated by the type of |  | | Report (issue) | | financially in part by, the numerous Federal, State, County and City agencies listed on pages A133 to A136..._____ District and regional studies._________________ Iron deposits in the Birmingham district, Alab...Utah_______________________ Silver in silicified rocks, Nevada and Washington. ______________________________...metals and industrial minerals ______________ District studies.____________________________ Beryllium...Montana.___________ Potash deposits in the Carlsbad district, New Mexico _________________________ Saline minerals |  | | Book (edition) | | to civilization. . . it is clear that 1825 mining opened the West- . —Charles W. Henderson, 1933...Highlights in the history of New Mexico mineralogy and mining 3 5 Prehistoric utilization of minerals New...SUBDISTRICTS, CAMPS, ETC. 569 BIBLIOGRAPHY 597 MAP: Mining Districts of New Mexico in pocket II. PREFACE...highlights in the his- New Mexico mineralogy and mining— including a section on the prehistoric utilization...edition, 1892. A. H. Fay (1920) A glossary of the mining and mineral industry. R. E. Grim (1953) Clay |
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