...Cynthia Dusel-Bacon; Nora K. Foley; John F. Slack; Alan E. Koenig; Robert L. Oscarson Abstract Volcanogenic massive sulfide (VMS) Zn-Pb-Cu-Ag-Au deposits of the Bonnifield mining district formed during Late Devonian-Early Mississippian magmatism along the western edge of Laurentia. The largest...

...) . Rectangles outline our three study areas. Locations of VMS and SEDEX deposits from Goodfellow et al. (1993) , Hunt (1997) , Newberry et al. (1997) , Schmidt (1997) , and Dusel-Bacon et al. (1998) . Dashed outline south of the Tanana River shows the boundary of the Bonnifield mining district. ...

... of a group of unmined volcanogenic massive sulphide (VMS) deposits located in the Bonnifield mining district, Alaska, include a detailed study of the unmined Red Mountain deposit. Shown on the cover of this journal, Red Mountain is the best-exposed of the deposits, and displays a remarkable environmental...

.... REFERENCES Capps , S. R. , 1912 , “ The Bonnifield Region, Alaska ,” U. S. Geol. Survey Bull . 501 . Dall , W. H. , 1896 , “ Report on Coal and Lignite of Alaska ,” ibid., 17th Ann. Rept ., pp. 763 – 875 . Mertie , J. B. , Jr. , 1937 , “ The Yukon-Tanana Region, Alaska...

... and porphyries which are overlain by the MORB-type basalt (Wolverine basalt) ( Piercey et al . 2002 b ); a similar situation exists at Eskay Creek ( Barrett & Sherlock 1996 ). In other cases, like Avoca and the Delta-Bonnifield districts, the deposits are associated with calc-alkalic and peralkalic...

... on Abbott, Mark Barton, Linda Gundersen, Roger Newell, Eric Seedorff, specific mining districts to compilation of database-type CDs on and Noel White. Among other things, this committee has specific deposits, commodities or areas. In deciding what to do, the recommended increased support for student...

... law, adopted in 1986 and promulgated in 1994, in productive districts suggest that much of the potential resource in essence opened certain deposits to joint-venture foreign investment. the area remains to be found. Exploration models must, however, However, gold mining is a "restrictive investment...

... Heavy metal concentrations in shallow marine sediments affected by submarine tailings disposal and artisanal gold mining, Buyat-Ratototok district, North Sulawesi, Indonesia— Evan N. Edinger, P. Raja Siregar, and George M. Blackwood 701 Vol. 52, No. 7, 2007 Mineralogical...

... the Juneau gold the nearby Republic mining district suggesting: (1) K-2 mineralization belt in that tellurides are a significant constituent of ore. Mineral occurred at greater depth; or (2) mineralization was caused by a composition and isotopic characteristics of 18 prospects at Berners Bay different...

..., comprises 50 New Mexico Institute of Mining & Technology papers on topics ranging from district and thematic overviews to specialized Socorro, New Mexico 87801 USA research topics covering a variety of carbonate-hosted deposit types. Thirteen Tel. +1.505.835.5317 Fax +1.505.835.5252 countries...

..., Allen & Holt help offset publication and malling costs; for 37 AlpEx 34 Recon-Struct rates, contact the Executive Director. 32 Anzman, Joseph R. 39 Geological Society of 39 Recursos del Caribe S.A. Employment opportunities for economic 32 ASARCO 36 Snowden Mining Industry geologists will be listed free...

... as an exploration tool for similar deposits elsewhere. The model has been especially helpful in evaluating targets 1NorfA covered by post-mineral alluvium. The Buffalo Valley Project is located in the Buffalo Valley Mining District, in the north­ western part of the Battle Mountain-Eureka IJATTLll JIOUNJ'AIN 0...

... Quadrangle, Bonnifield mining district, Alaska : Alaska Division of Geological and Geophysical Surveys, Report of Investigations 2006-2 v. 1 . 0.1, 98 p., 1 sheet, scale 1:50,000 . Bemis S.P. , 2004 , Neotectonic framework of the north-central Alaska Range foothills [M.S. thesis] : University...

... GeoAssociates P.C. 42 Pincock, Allen & Holt 31 AlpEx 39 Kingston Morrison 33 Recursos del Caribe SA 39 Anzman, Joseph R 35 Larson, Lawrence T., Ph.D. 37 XRAL 33 Balbach Colorado, Inc. 13 Zange Engineering & 40 Barranca Resources 3 Learning Curve 20 Colorado School of Mines 34 MiningPro Files Research 13...

... around a porphyry copper deposit in the hyperarid Atacama Desert of Chile, and VMS mineralization in a mature mining camp in Canada. This paper also summarizes key elemental associations for successful utilization of aqueous geochemistry in mineral exploration. The most successful aqueous-phase...

... Institute of Mining & Technology two and a half years! Although this job Socorro, New Mexico 87801 USA has taken a lot of our time and efforts, it has also Tel. +1.505.835.5327 Fax +1.505.835.6436 provided us with exceptional professional growth. Email: campbell@mailhost .nmt.edu The personal contacts we...

...., Fyre Lake, Ice, GP4F, Kudz Ze Kayah), in the Finlayson Lake district, Yukon Territory, established this area as a potential future mining camp. The polymetallic Wolverine deposit contains a geologic resource of 6,237,000 metric tons (t) grading 12.7 percent Zn, 1.3 percent Cu, 1.6 percent Pb, 370.9 g/t...

... . Available online at: http://pubs.usgs.gov/pp/p1619/ ( last access 14/7/2011 ). Eppinger R.G. Briggs P.H. 2007 . Environmental geochemistry at Red Mountain, an unmined volcanogenic massive sulphide deposit in the Bonnifield district, Alaska Range, east-central Alaska . Geochemistry...

... sulfide system. Geochemistry of volcanic rocks from Cerro de Oro, Sonora, Mexico: Inocente Espinoza, University of Colorado, Boulder, Colorado, W.W. Atkinson Jr., advisor. Cerro de Oro mining district, an area of precious- and base-metal mineralization, is located in Sonora, 70 km northeast...