 | | Journal (article/letter/editorial) | | Mesoproterozoic Copperwood Sedimentary Rock-Hosted Stratiform Copper Deposit, Upper Peninsula, Michigan Theodore...Mineral Museum, Michigan Technological University, 1404 E. Sharon Avenue, Houghton, Michigan 49931 2 Orvana...Canada Abstract Copperwood is located in Gogebic County, Upper Peninsula, Michigan, within the Porcupine...fold with a shallow plunge to the northwest. Chalcocite is the only Cu-bearing mineral in the orebody...zone at Copperwood is stratigraphically equivalent to that at the White Pine mine, but Copperwood lacks |  | | Journal (article/letter/editorial) | | Field Analog for Humidity Cell Testing, Copperwood Deposit, Michigan Theodore J. Bornhorst1,ā and Mark J...J. Logsdon2 1 A.E. Seaman Mineral Museum, Michigan Technological University, 1404 E. Sharon Avenue, Houghton...conditions. A pile of ore from test mining of the Copperwood deposit in 1957 subsequently weathered under...drainage waters. The Copperwood ore is simple, with only one sulfide mineral (chalcocite) hosted by gray to...to black shale. As part of the new Copperwood development work, a drainage system was established beneath |  | Gallagher, Timothy M., Sheldon, Nathan D., Mauk, Jeffrey L., Petersen, Sierra V., Gueneli, Nur, Brocks, Jochen J. (2017) Constraining the thermal history of the North American Midcontinent Rift System using carbonate clumped isotopes and organic thermal maturity indices. Precambrian Research, 294. 53-66 doi:10.1016/j.precamres.2017.03.022 | Journal (article/letter/editorial) | | Sciences, University of Michigan, 1100 N University Avenue, Ann Arbor, MI 48109, USA U.S. Geological Survey...Survey, P.O. Box 25046 MS 973, Denver, CO 80225, USA c Research School of Earth Sciences, Australian National...sample localities. MNāMinnesota; WIāWisconsin; MIāMichigan; ERFāEagle River Falls; PLRāPike Lake Road; WPMāWhite...Nonesuch Formation samples collected in Wisconsin and Michigan were attributed by some authors to differences...are presented from samples distributed across Michigan and Wisconsin. Multiple organic thermal maturity |  | Jones, S.M., Prave, A.R., Raub, T.D., Cloutier, J., StĆ¼eken, E.E., Rose, C.V., Linnekogel, S., Nazarov, K. (2020) A marine origin for the late Mesoproterozoic Copper Harbor and Nonesuch Formations of the Midcontinent Rift of Laurentia. Precambrian Research, 336. 105510 doi:10.1016/j.precamres.2019.105510 | Journal (article/letter/editorial) | | volcanic-sedimentary succession exposed along the Canadian-USA shorelines of Lake Superior (Figs. 1 and 2) has been...base of Formation). D. Native Cu vein cutting chalcocite-rich laminae (core WP-126 depth 644.3 m; 0.41...41 m above base of Formation). E. Early chalcocite formed in situ and reworked as infill in desiccation...preserved in the Neogene Bouse Formation, California, USA, yielded power spectra interpreted by some workers...2003), and the Triassic Passaic Formation in eastern USA (ElTabakh et al., 1997). The presence of gypsum evaporites |  | Ikehata, Kei, Chida, Kohsuke, Tsunogae, Toshiaki, Bornhorst, Theodore J. (2016) HYDROTHERMAL NATIVE COPPER IN OCEAN ISLAND ALKALI BASALT FROM THE MINEOKA BELT, BOSO PENINSULA, CENTRAL JAPAN. Economic Geology, 111 (3) 783-794 doi:10.2113/econgeo.111.3.783 | Journal (article/letter/editorial) | | Seaman Mineral Museum, Michigan Technological University, Houghton, Michigan 49931 Abstract Native copper...levels, such as the Keweenaw Peninsula, northern Michigan and ParanĆ” basaltic province, southern Brazil...copper minerals such as malachite or azurite or chalcocite were observed. (wt %) SiO2 55.80 66.18 50.35...has been reported in silicate minerals from Lake County, Oregon, and Emeishan, Sichuan, China (Hofmeister...30 to 250 ppm (Keweenawan basalt from northern Michigan, Jueluotage basalt from China, Emeishan flood |  | Bodden, Thomas, Bornhorst, Theodore, BĆ©guĆ©, Florence, Deering, Chad (2022) Sources of Hydrothermal Fluids Inferred from Oxygen and Carbon Isotope Composition of Calcite, Keweenaw Peninsula Native Copper District, Michigan, USA. Minerals, 12 (4) 474 doi:10.3390/min12040474 | Journal (article/letter/editorial) | | Keweenaw Peninsula Native Copper District, Michigan, USA Thomas J. Bodden 1 , Theodore J. Bornhorst 1...Keweenaw Peninsula Native Copper District, Michigan, USA. Minerals 2022, 12, 474. https://doi.org/10...Engineering and Sciences, Michigan Technological University, Houghton, MI 49931, USA; tjbodden@mtu.edu (T...Seaman Mineral Museum, Michigan Technological University, Houghton, MI 49931, USA Department of Earth Sciences...oxygen and carbon isotopes; Keweenaw Peninsula; Michigan; burial metamorphism; fluid mixing; ore genesis |  | | Journal (issue) | | of native copper in the Quincy mine ca. 1918. (Michigan Technological University Archives, Houghton) ...Donald Pearce (1941-1989) The āCopper Kingā The MICHIGAN COPPER COUNTRY L. W i l s o n New Mexico Bureau...t a n l e y J. D y l II Seaman Mineral Museum Michigan Technological University % 1992 T h e M in e...crystal group, 13.6 cm, from an unknown mine in the Michigan Copper Country. Richard A. Kosnar collection;...wrote the classic work on the copper deposits of Michigan in 1929. Photo by Wendell E. Wilson. TENT . |  | Maghfouri, Sajjad, Rastad, Ebrahim, Borg, Gregor, Hosseinzadeh, Mohammad Reza, Movahednia, Mehdi, Mahdavi, Amir, Mousivand, Fardin (2020) Metallogeny and temporalāspatial distribution of sediment-hosted stratabound copper (SSC-type) deposits in Iran; implications for future exploration. Ore Geology Reviews, 127. 103834pp. doi:10.1016/j.oregeorev.2020.103834 | Journal (article/letter/editorial) | | fragments) and the main ore minerals include chalcocite, chalcopyrite, bornite, pyrite, galena, sphalerite...al., 2017). Typically, the ore zones comprise chalcocite, bornite, and chalcopyrite. SSC-type deposits...to the Revett Formation in northwestern Montana, USA) that contains hydrocarbons; and (3) red bed-kind...are chalcopyrite, sphalerite, pyrite, bornite, chalcocite, with lesser amounts of galena, and tennantite...the Garedu Red Bed Formation and consists of chalcocite, chalcopyrite, pyrite, and supergene minerals |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A, County Mus. of Nat. Hist. Los Angeles, CA Steven R. Morehead...Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geol. Surv. of...ROBINSON JOINS MTU The Seaman Mineral Museum at Michigan Technological UniĀ versity in Houghton recently...collection is particularly rich in minerals from the Michigan copper country, including many of the finest coppers...u a t e o f L i m e . . . In Illinois, Gallatin County, on Peter's Creek, 17 miles from Shawneetown, and |  | | Journal (issue) | | Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml George W. Robinson Natl. Museums...the mineralogy of the Majuba Hill mine, Pershing County, Nevada .........................................have held the Majuba Hill property in Pershing County, Nevada, since Gulf Chemical relinquished it, hoping...Bismuthinite is common within most samples of chalcocite from the Copper stope, but is present as extremely...of deep blue connellite have been found within chalcocite pods from two occurrences in the middle adit: |  | | Journal (article/letter/editorial) | | Environmental, 941 8th Street, Boulder, CO 80302, USA. 303-324-6948, aamaest@gmail.com RI PT 2 U.S....Geological Survey, 3215 Marine St., Boulder, CO 80303, USA. 303-541-3037, dkn@usgs.gov Abstract SC Humidity... 2013), and molybdenite with minor bornite, chalcocite, and tetrahedrite; the dominant aluminosilicate...thick) underlain by a supergene zone containing chalcocite, covellite, and some chalcopyrite. Pebble East...Units or Conditions EP Mine or Project, Location (USA) TE D Table 3. Sulfate release rates and conditions |  | | Journal (issue) | | Nuristan, Afghanistan; Neptunite from San Benito County, California; Spinel from Mogok, Burma; and Emerald...world. The Natural History Museum of Los Angeles County was particularly interesting among the museums...minerals at the Tourmaline Queen mine in Sz Diego County, California. By 1978 he had accumulated a huĀ£ Tourmaline...Postage Stan Tourmaline) into a general San Diego County pegmatite collectic of nearly 200 superb specimens...ā in the Natural History Museum of Los Angeles County. Selling off the last of his minerals in 1981, |  | | Journal (issue) | | Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geol. Surv. of...Articles Native gold from the Jamestown mine, Tuolumne County, California......................................Adularia from the Howard-Montgomery quarry, Howard County, Maryland .......................................Ramon S. De Mark at 530 E. Arch Street, Marquette, Michigan 49855. point out that occasional books and even...OF PHILIP RASHLEIGH, O r M ENAB1LLY, IN THE COUNTY OF C O R N W A LL, ESQ, M .P . F . R .S . AND F |  | | Journal (issue) | | Riverside, CA Donald A. Peaoot University of Michigan Ann Ai'bor, Ml .Andrew C. Roberti . Geol. Sun...mineral from the Clear Creek claim, San Benito County, California ............. 471 by R. C. Erd, A....finding only cupriferous pyrite with some secondary chalcocite, none of which approached economic levels at...Schaller, 1930; Graeme, 1981). I found a bismuthrich chalcocite in the Southwest mine. The Southwest also produced...an unusual occurrence of small crystals with chalcocite (Bateman and Murdoch, 1914). Gardner shaft, as |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geol. Surv. of...Robinson Seaman Mineral Museum, MTU Houghton, Michigan Abraham Rosenzweig Tampa, FL Correspondents Miguel...miniature size) from the Eagleās Nest mine in Placer County, California (half of them with quartz matrix) were...Richard Rice, a lifetime resident of Washington County, Oregon, was a retired logging contractor. With |  | | Journal (issue) | | province is roughly the American equivalent of a county, and a department the equivalent of a state. The...specimen of this type is now in the Los Angeles County Museum of Natural History. Although uncommon, some...chalcopyrite, bomite, enargite, tennantite, stannite, chalcocite and digenite generally occur in association with...pyrite and is sporadically associated with bomite, chalcocite and digenite. Tennantite is commonly associated...Tungstenite Cassiterite Polybasite Wittichenite Chalcocite/digenite Pyrargyrite *Wurtzite Cosalite *Collector-quality |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geol. Surv. of...Robinson Seaman Mineral Museum, MTU Houghton, Michigan Abraham Rosenzweig Tampa, FL Correspondents Miguel...Rico oxidized zone. Although species such as chalcocite, covellite, anglesite and cerussite have been...Arsenopyrite Arsenosulvanite Bemdtite Bismuthinite Chalcocite Chalcopyrite Covellite Fizelyite** Galena Ottemannite |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geol. Surv. of...Robinson Seaman Mineral Museum, MTU Houghton, Michigan Abraham Rosenzweig Tampa, FL Correspondents Miguel...1997 Natural History M useum o f Los Angeles County M useum o f G eology D irector: Philip R . Bjork...$10 v.8/#6 California Issue Benitoite, Gold L.A. County Museum, Himalaya mine $10 v.9/#3 Kalahari rhodochrosite |  | | Journal (issue) | | Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geo!. Surv. of...Articles History and minerals of The Geysers, Sonoma County, California .....................................1852 to the 1920ās, is located in northern Sonoma County about 145 km north of San FranĀ cisco, California...(1970). The Mayacmas Mountains of northern Sonoma County are underlain by rocks of the Jurassic-Cretaceous...deposits of the western Mayacmas district, Sonoma County, California. California Journal o f Mines and Geology |  | | Journal (issue) | | Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml George W. Robinson Natl. Museums...Alves Minerals of the Black Pine mine, Granite County, Montana ........................................year: the Houston Museum supplement in # 1, the Michigan Copper Country Issue (# 2 ) and the Yukon Phosphates...California mineral collector, specializing in San Diego County and Baja California specĀ imens through purchase...largest land transactions in the history of San Diego county, and moved to the Hi Hope Ranch near Oceanside |  | | Journal (issue) | | Morehead Riverside, CA Donald R. Peacor University Qt Michigan Ann Arbor, Ml Andrew C. Roberts Geol. Surv. of...deposits o f the Seventy-nine m ine area, Gila County, Arizona. University o f Arizona, Tucson, Ph.D...disseminated granular pyrite and m inor black chalcocite have been detected in the sedim entary host rock...rock. C h alcocite C u,S T he best examples o f chalcocite occur as thin, sooty black patches to 3 m m across...arcasite FeS, B ornite C u 5FeS4 O rpim ent As,S3 Chalcocite C u,S Pararealgar AsS C halcopyrite CuFeS, Pyrite |  | | Journal (issue) | | Anhaeusser Minerals of the Linwood mine, Scott County, Iowa ............. 231 by P. L. Garvin & D. M...Bindheimite Bismuth* Bomite Boumonite Cerussite Chalcocite* Chalcopyrite* Chromite Cinnabar Cobaltite* Native...Brookite Calaverite Calcite "Carbon" Cassiterite Chalcocite Chalcopyrite Chlorite Chloritoid Chron1ite Cobaltite...minerals. ' MINERALS OF THE LINWOOD MINE SCOTT COUNTY, lowA Paul L. Garvin Department of Geology Ā· Cornell...River just east of the town of Buffalo in Scott County, Iowa. The"mine's beginnings can be traced back |  | | Journal (issue) | | Cooper Nottingham, England Anthony R. Kampf L.A. County Mus. of Nat. Hist. Los Angeles, CA Joseph A. Mandarino...Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Ml Andrew C. Roberts Geol. Surv. of...Robinson Seaman Mineral Museum, MTU Houghton, Michigan Abraham Rosenzweig Tampa, FL Correspondents Miguel...Cannon (Cannon MicroĀ probe, Seattle, Washington, USA) provided some preliminary microprobe work. 219 ...drifting on the Brownley Hill vein had reached the county boundary (also the sett boundary), more than 1 |  | | Journal (issue) | | Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, MI Andrew C. Roberts Geol. Surv. of...Topeka-Kentucky Giant and Indiana veins, Ouray County, Colorado........................................now in the Natural History Museum of Los Angeles County (NHMLAC). In 1933 Martin sold Kunz Collection specimens...Carolina (!), two faceted vesuvianites from Italy, a Michigan copper, Siberian nephrite, numerous uraniferous...1933 and was later obtained by the Los Angeles County MuĀ seum of Natural History. Van Pelt photo. ulcerated | | | Journal (issue) | | Morehead Riverside, CA Donald R. Peacor University of Michigan Ann Arbor, Mi George W. Robinson Natl. Museums...Anhaeusser Minerals of the Linwood mine, Scott County,Iowa ..................... 231 by P. L. Garvin...Bindheimite Bismuth* Bomite Boumonite Cerussite Chalcocite* Chalcopyrite* Chromite Cinnabar Cobaltite* Native...Brookite Calaverite Calcite āCarbonā Cassiterite Chalcocite Chalcopyrite Chlorite Chloritoid Chromite Cobaltite...River just east of the town of Buffalo in Scott County, Iowa. T h eām ineās beginnings can be traced back |
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