 | | Report (issue) | | of the Questa Molybdenum (Moly) Mine Area, Taos County, New Mexico BY JOHN H. SCHILLING Local structure..................................11 Amphibolite Complex ...................................................................................23 Volcanic Complex ......................................................................................... 55 Chalcopyrite ...........................................................................66 Bear Canyon (Horseshoe) Prospects .................................. |  | | Report (issue) | | prospects 2. Salmon Ranger District mines and prospect 3. Cobalt Ranger District mines and prospects...east-central Idaho. Most of the Forest is in Lemhi County; only a small portion falls within Idaho and Valley...National Forest. Most of the Salmon Forest is in Lemhi County; only a small portion falls within Idaho and Valley...Precambrian and Paleozoic rocks. Geologic structures are complex and have played an important role in localizing...reported on the geology and ore deposits in Lemhi County and his work is an excellent source for mining |  | | Journal (article/letter/editorial) | | no clinopyroxene. Copper sulphides, generally chalcopyrite and bornite, occur in a range of diorites, rlorites...chaleopyrite E.F. Stumpfl et al. 27% bornite to 36% chalcopyrite 64% bornite in the Carolusberg Central, Rietberg...sparse, and the sulphides are 75% pyrrhotite 25% chalcopyrite. Of great importance are the sulphide/ silicate...around sulphide grains. Complex textural relationships between bornite and chalcopyrite, so well-known from...sulphides, partly a slightly later position for chalcopyrite. Of much more interest, however, are the various |  | | Report (issue) | | BULLETIN 71 Mineral Resources of Taos County, New Mexico by JOHN H. SCHILLING Description of mineral.................................... Metamorphic complex ..................................................................................... Volcanic complex ....................................................................................... Cedros prospect ............................................................................................. Prospect along lower Cabresto Canyon ................. |  | | Report (volume) | | .. ^.......................... 83 John McGrew prospect........................................ 84 Peerless.................................... Yellowstone prospect........................................... Kennedy........................................... Horseshoe prospect............................................................................. Copper King prospect..........................'................ Quartz................:........ Butte and Philadelphia prospect.............................. Bullion mine... |  | CLIFFORD, T. N., BARTON, E. S., RETIEF, E. A., REX, D. C., FANNING, C. M. (1995) A Crustal Progenitor for the Intrusive Anorthosite--Charnockite Kindred of the Cupriferous Koperberg Suite, O'okiep District, Namaqualand, South Africa; New Isotope Data for the Country Rocks and the Intrusives. Journal of Petrology, 36 (1) 231-258 doi:10.1093/petrology/36.1.231 | Journal (article/letter/editorial) | | and the high /i? (10-1), that characterize the metavolcanic and metasedimentary rocks, and intrusive granite...(1986): (1) an older suite of metasedimentary and metavolcanic rocks, including quartzite, schist and granulite...NiS •CHALCOCITE, Cu2S Molybdenite, MoS2 •CHALCOPYRITE. CuFeS2 Niccolite, NiAs Coloradoite, HgTe...developed T\\ phase that is sometimes structurally complex, with an early phase that exhibits multiple growth...primary opaque minerals in the Koperberg Suite are chalcopyrite, bornite, pyrrhotite-pentlandite and magnetite-ilmenite |  | Nash, J. Thomas, Briggs, P.H., Bartel, A.J., Brandt, E.L. (1988) Geochemical results for samples of ore and altered hostrocks, Blackbird mining district, Lemhi County, Idaho. Open-File Report Vol. 1988 (88-661) US Geological Survey doi:10.3133/ofr88661 | Report (issue) | | Altered Hostrocks, Blackbird Mining District, Lemhi County, Idaho By Nash, J. Thomas,* Briggs, Paul,* Bartel...generalized geology of the Idaho Cobalt Belt, Lemhi County, Idaho. Cobalt deposits sampled in this study:...BP, Buckeye prospect; CZ, Chicago zone; CP, Chelan prospect; CEP, Catherine-Ella prospect; DZ, Dandy zone;...Chelan prospect; ESP, East Sunshine prospect; HZ, Horseshoe zone; IZ, Idaho zone; IP, Iowa prospect; MP...MP, Mushroom prospect; RP, Ridgetop prospect; SIL, South Idaho lode; TP, Toronto prospect............. |  | | Report (issue) | | ......................................17 Horseshoe prospect .........................................................43 King Leopold Orogen — Hooper Complex ..............................................................................49 Kimberley Ice prospect (western dome) ................................................75 Halls Creek Orogen — Lamboo Complex ...............................................................79 King Leopold Orogen — Hooper Complex .............................................. |  | | Report (issue) | | GEOLOGY AND MINERAL RESOURCES OF SAN DIEGO COUNTY, CALIFORNIA By F. HAROLD WEBER JR., California...parts of several sections, by R. M. Stewart COUNTY REPORT California Division of Mines Ferry Building...CAMPBELL, Director AND GEOLOGY State Geologist COUNTY REPORT ^ Price $8.00 3 CONTENTS Page ABSTRACT...Metasedimentary rocks (Cretaceous and/or older) Metavolcanic rocks (Jurassic and/or Cretaceous) 20 Hypabyssal...Hypabyssal intrusive rocks associated with the metavolcanic rocks Hybrid gneisses and associated quartz |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Department Natural History Museum of Los Angeles County 900 Exposition Boulevard Los Angeles, California...presented to the Natural History Museum of Los Angeles County by his children. A century ago Bisbee, Arizona...had become the largest clothing store in Cochise County. Ben made frequent trips back East to buy merchandise...interested in the Natural History Museum of Los Angeles County and for a time in the early 1970’s served as a |
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