 | | Journal (article/letter/editorial) | | Figure I (left). Barite crystal group from the Lamb mine; largest crystal 4.0 cm. H. Prior specimen, S...(10 by 5 cm) of clear barite crystals from the Lamb mine; largest crystal 3.3 cm. H. Prior specimen, S...Blyskal photo. Some Mines & Minerals of Morgan County, Missouri During the summer of 1991 the authors began...early barite and lead mining activities of Morgan County, Missouri, with the intent to provide a mineralogical...St. Louis, Missouri 63129-2704 L ocated in Morgan County, Missouri, the central Missouri mining district |  | | Journal (article/letter/editorial) | | SHERWOOD 106A East 25th, P. 0. Box 436 Oak Grove, Missouri 64075-0436 Downloaded by [Brown University Library]...Louis, Missouri 63129-2704 Figure 1. Counties in Missouri. N o comprehensive list of Missouri mineral...found in Missouri; two of these, fletcherite and starkeyite, were first described from Missouri mines....location a~ included at the end of each entry. Adair County Chariton River (40-04-05N 92-4 I -23W). septarian...septarian concretions about 2 miles north of the Macon county line. CALCITE crystals enclosing bundles of acicular |  | | Journal (article/letter/editorial) | | about 35 miles northwest of Flagstaff, in Coconino County, a pineforested volcanic area. The elevation is...in California recently I visited the Los Angeles County Museum in Los Angeles to see the famous collection...in Los Angeles can walk across the lawn to the County Museum for another thrill—the display of some of...weekends. "At a mine east of Leadville (Lake Co.). Colo., almost at the end of Lake County, I found a specimen...are reported from only one mine at Mackay, Idaho. Also found at this mine are malachite, azurite, cuprite |  | | Journal (article/letter/editorial) | | Wisconsin, Michigan and east-central Minnesota, USA: Implications for future exploration T Theodore...LLC, 34898 University Ave, Cambridge, MN 55008, USA A R T I C L E I N F O A B S T R A C T Keywords:...Wisconsin, Michigan and east-central Minnesota, USA. These cycles are responsible for significant subaerial...have a more than reasonable chance of successful mine development under today’s strict regulatory permitting...operation and closure of the Flambeau copper-gold mine in the 1990s coupled with the discovery of the large |  | | Journal (article/letter/editorial) | | entrance and arch of the Palermo mine, North Groton, Grafton County. Rob Lawrence photo, courtesy Bob...at 15:01 05 January 2015 LOCATIONS BY COUNTY Belknap County Alton area: arsenopyrite, galena, quartz...occurrence is particularly noteworthy for Carroll County Albany, Blackberry Crossing (includes the Moose...tall, Government Gravel pit, North Conway, Carroll County. Jeff Scovil specimen and photo. Downloaded by...tall, Middle Moat Mountain, North Conway, Carroll County. Canadian Museum of Nature specimen, Jeff Scovil |  | | Journal (article/letter/editorial) | | 07 January 2015 from the Warsaw Formation of Missouri, Iowa, and Illinois ARTHUR E. SMITH 9118 Concho...limestones of the lower Warsaw Formation where Missouri, Iowa, and Illinois adjoin each other along the...I was a graduate student at the University of Missouri in the late 1950s and have fond memories of several...several of us rushing north from Columbia, Missouri, to the geode area in the late winter-early spring...MINERALS Van Buren ' I It Clark County LewisCounty MISSOURI b f $ x X x xx L.& -.L .-.- 1s |  | Kavalieris, Imants, Khashgerel, Bat-Erdene, Morgan, Leah E., Undrakhtamir, Alexander, Borohul, Adiya (2017) Characteristics and 40Ar/39Ar Geochronology of the Erdenet Cu-Mo Deposit, Mongolia. Economic Geology, 112 (5) 1033-1054 doi:10.5382/econgeo.2017.4500 | Journal (article/letter/editorial) | | Kavalieris, 1,† Bat-Erdene Khashgerel, 1 Leah E. Morgan,2 Alexander Undrakhtamir,3 and Adiya Borohul3 1...Federal Center, MS 963, Denver, Colorado 80225, USA Mining Corporation, Friendship Square, Bayan-Undur...infilled by pyrite-chalcopyrite, with subordinate bornite, but most of the chalcopyrite occurs in D veins...granodiorite porphyry contact, although D veins (and chalcopyrite) extend outward to the propylitic zone. The...refer to it as Erdenet. The Erdenet open-pit Cu-Mo mine, located in northern † Corresponding author: e-mail |  | | Journal (article/letter/editorial) | | Mongolia (Fig. 1) and has been exploited by the Erdenet mine since 1977; it has production plus reserves of 9...Cooperation Agency, 1992). Moreover, as noted by Lamb and Cox (1998), the lack of detailed information...decreases the reliability of the reported dates. Lamb and Cox (1998) recently reported 40Ar/39Ar dates...sericite alteration. Major ore minerals, such as chalcopyrite, bornite, molybdenite, and pyrite, occur in...molybdenite-quartz, (4) chalcopyrite-pyritequartz, (5) pyrite, (6) pyrrhotite-chalcopyrite ± cubanite, (7) chalcocite-bornite |  | Boldbaatar, Enkhjargal, Nanzad, Bolorchimeg, Sereenen, Jargalan, Locmelis, Marek, Osanai, Yasuhito, Batsaikhan, Navchaa, Dashtseren, Khashbat, Zorigtbaatar, Ariunbat (2019) Geochronology and geochemistry of the intrusive suite associated with the Khatsavch porphyry Cu-Au (Mo) deposit, South Mongolia. Ore Geology Reviews, 111. 102978 doi:10.1016/j.oregeorev.2019.102978 | Journal (article/letter/editorial) | | Petroleum Engineering, Missouri University of Science and Technology, Rolla, MO, USA 3 Division of Earth...of the Khatsavch deposit and is dominated by chalcopyrite, pyrite, molybdenite, and rare gold. Geochemically...150 km northeast of Oyu Tolgoi deposits is under a mine development with a plan of extraction to start in...tens of kilometers across (Badarch et al., 2002; Lamb and Badarch, 1997; Perello et al., 2001). The primary...Khatsavch deposit is dominated by disseminated chalcopyrite, bornite, pyrite, and magnetite with minor native |  | | Journal (article/letter/editorial) | | MineralizingFluidsin the BariteDepositsof Central and Southeast Missouri D. L. LEACH U.S. Geological Survey, Branch...Street, Golden, Colorado 80401 Abstract In central Missouri, many small high-grade barite depositsoccur as...collapse structures in carbonate rocks. In southeast Missouri, extensive low-grade residual depositshave been...lead-zinc mineralization in the Central and Southeast Missouri barite districts. Fluid inclusion data show that...Ozark regionof Missouri. low-grade, relatively shallow residual deposits in Central Missouri District southeast |  | | Journal (issue) | | and I.E. Jones 27 31 Stalactitic galena from Lamb Bottom, Mendip Hills, Somerset, England S. Cowdry... Also, in many lowland counties of England the County Plans give details of proposed mineral extraction...2, the county of Shropshire was incorrectly referred to throughout as Salop. In the 1974 county reorganisations...indeed renamed Salop (the old Latin name for the county), but the name was changed back to Shropshire in...spots of high Cu concentration correspond to chalcopyrite. Scale bar 0.1 mm . = 10 of speclrometers |  | | Journal (article/letter/editorial) | | stibnite (chief ore of antimony) ; brassy-yellow chalcopyrite, both massive and xled (chief ore of copper)...confirmation of my guess as to the rock I found in Marion County, Florida. "I say it's jasper, flint and agate....From Idaho wilderness area near Stanley in Blaine County, Idaho. Some of these come in very large xls."...that were found in the Warsaw formation, Hancock County, Illinois. These were found in geodes embedded...Maurice Lamb, Niota, 111. Three specimens from Warsaw, Hancock Co., 111., were sent in by Mr. Lamb. They |  | | Book (volume) | | instance, a single Spodumene crystal from the Etta Mine near Keystone on the east side of the Mount Rushmore...BRULE COUNTY AREA: in the Oacoma zone of the Pierre Fm. On Elm Cr. Near its jct. with the Missouri River...rosette up to 5 or 6 inches. CAMPBELL COUNTY MOUND CITY, W to the Missouri R., regional hillsides, ridges,...gravels, etc.petrified wood, wood opal. CORSON COUNTY LITTLE EAGLE: area ridges, slopes, stream beds...Hounds in the United States CUSTER COUNTY AREA: The November Mine, 1.2 mi. SE of the Needles Eye Tunnel |  | | Book (volume) | | Dahlonega Co. and Rabum Co., and the McDuffie County Belt extending through portions of McDuffie, Warren...Gold, such as Chalcopyrite, Galena, Pyrite, Pyrrhotite and some Sphalerite. BALDWIN COUNTY MILLEDGEVILLE...MILLEDGEVILLE, at state farmjasper. BANKS COUNTY COMMERCE, along Hwy. 59, 5 mi. E of Jackson-Banks Co. lineBeryl...along adjoining Co. linerock crystal. BARROW COUNTY WINDER, along rd. to Jefferson and 1½ mi. inside...Guide for Rock Hounds in the United States BARTOW COUNTY AREA, Saltpeter Cave, as floatjasper. CARTERSVILLE: |  | Han, Chunming, Xiao, Wenjiao, Zhao, Guochun, Sun, Min, Qu, Wenjun, Du, Andao (2014) Re-Os Geochronology on Molybdenites from the Donggebi Mo Deposit in the Eastern Tianshan of the Central Asia Orogenic Belt and its Geological Significance. Resource Geology, 64 (2) 136-148 doi:10.1111/rge.12033 | Journal (article/letter/editorial) | | period 2009–2010; construction of the now-operating mine began in 2011. Since the discovery of the deposit...Stein (2000); Berzina et al. (2005) Gerel (1998); Lamb and Cox (1998); Watanabe and Stein (2000) Cooke...molybdenite and pyrite with minor quantities of chalcopyrite, galena, magnetite, scheelite and wolframite...mineralization stage) consists of molybdenite, chalcopyrite, and pyrite, with minor galena and sphalerite...Euhedral pyrite is common in this zone. Minor chalcopyrite occurs with disseminated molybdenite. Silicification |  | | Journal (article/letter/editorial) | | post-entrapment diffusion on the solubility of chalcopyrite daughter crystals in natural quartz-hosted fluid...post-entrapment diffusion on the solubility of chalcopyrite daughter crystals in natural quartz-hosted fluid...post-entrapment diffusion on the solubility of chalcopyrite daughter crystals in natural quartz-hosted fluid...(0)7805568061 NU Abstract The presence of chalcopyrite daughter crystals in natural quartz-hosted fluid...post-entrapment MA modifications that affect chalcopyrite solubility. Previous double capsule experiments |  | Dauphas, N., Roskosz, M., Alp, E.E., Golden, D.C., Sio, C.K., Tissot, F.L.H., Hu, M.Y., Zhao, J., Gao, L., Morris, R.V. (2012) A general moment NRIXS approach to the determination of equilibrium Fe isotopic fractionation factors: Application to goethite and jarosite. Geochimica et Cosmochimica Acta, 94. 254-275 doi:10.1016/j.gca.2012.06.013 | Journal (article/letter/editorial) | | Chicago, 5734 South Ellis Avenue, Chicago, IL 60637, USA b Unité Matériaux et Transformations, Université...Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA d Engineering and Science Contract Group-Hamilton...JE23, Houston, TX 77058, USA e NASA Johnson Space Center, Houston, TX, USA Received 14 November 2011;...myoglobin, cytochrome f, pyroxene, metal, troilite, chalcopyrite, hematite, and magnetite. Ó 2012 Elsevier Ltd...minerals in low temperature aqueous systems (Stumm and Morgan, 1996). Goethite and hematite are the most abundant |  | | Journal (issue) | | ........... More problems for the Boulby potash mine .............................................. NASA.......................... .. Prince of Wales Gold Mine. How much trust do you put in a label?....... 19...later in this issue, of the 2016 meeting, held in County Durham. You can also find a condensed version of...drawn both to recent incidents at the Boulby potash mine in Yorkshire and to a recent trend in requirements...first collectors to find their way into Heights Mine, where the walls were “covered in green fluorite” |  | | Journal (article/letter/editorial) | | world's Spinel. from stocks o f permit 20 mine, (opal, Mexico. STRICTLY WHOLESALE chon from...MINERALS - Boxed, mount ed, and identified, postpaid USA, $2.00. Specimens average approx. 1 " . Irma Curry...chunks only, from one lb. and up, right out of the mine. Postage or freight extra. John B. Guillemin, Box...and Novelties, 1811 Cheek Road, Durham, N. C. MISSOURI AGATE—Ozarkite, beautiful gem material composed...pink and green Tourmaline in matrix from Oxford County, Maine—50t to $10.00. We can better serve you if |  | | Report (issue) | | No. men employed: 20. Ores: Copper. AMERICAN BOY MINE. Patagonia, Arizona. Owners: Jens Petersen, J. B...Mgr., S. S. Jones; Asst. Gen. Mgr., J. M. Francis; Mine Supt., Lowell Gordon; Auditor, J. S. Withers. 24...Carmichael; Cashier and Purchasing Agt., J. G. Cooper; Mine Supt., P. B. Scotland; Concentrator Supt., Arthur...Louisville, Ky. Operating Dept: Gen. Mgr., J. T. Tong; Mine Supt., H. M. Tong; Chief Engineer, A. J. Medbery... Minn. Operating Dept: Gen. Mgr., Ernest LeDuc; Mine Supt., J. P. Trebilcock; Chief Engineer, Lloyd R |  | | Journal (article/letter/editorial) | | gastropods, brachiopods, etc. Only $ 1 . 7 5 Postpaid USA. Robert Eaton, 5 4 Heberle R d . , Rochester, 9 ...446 So. 5th St., Hot Springs, So. Dak. S Herkimer County "Diamandi" SI OO A Golden Apatite Crystals, $1...1 , Monroe, N. Y. BRILLIANT SHOWY SPECIMEN — Chalcopyrite on Pink Dolomite, or bright Blue Green Chrysocolla...SHOP, 8 9 1 3 W h i t e Avenue, St. Louis 17, Missouri. N E W EASTERN C U T T I N G M A T E R I A L DISCOVERED...exchange sands. Happy to help beginners. Chas. R. Lamb, Sand Collector, Long Beach, W a s h i n g t o n |  | | Journal (article/letter/editorial) | | Mesothermal gold vein mineralization of the Samdong mine, Youngdong mining district, Republic of Korea A...Geological Sciences, University of Missouri-Columbia, Columbia, Missouri 65211, USA Received: 17 September 1993/Accepted:... Mesothermal gold mineralization at the Samdong mine (5.5-13.5 g/ton Au), Youngdong mining district,...that mesothermal gold mineralization at the Samdong mine may have formed from dominantly magmatic hydrothermal...of its geochemical characteristics. The Samdong mine in the present study is a typical example of one |  | Goldhaber, Martin B., Church, Stanley E., Doe, Bruce R., Aleinikoff, John N., Brannon, Joyce C., Podosek, Frank A., Mosier, Elwin L., Taylor, Cliff D., Gent, Carol A. (1995) Lead and sulfur isotope investigation of Paleozoic sedimentary rocks from the southern Midcontinent of the United States; implications for paleohydrology and ore genesis of the Southeast Missouri lead belts. Economic Geology, 90 (7) 1875-1910 doi:10.2113/gsecongeo.90.7.1875 | Journal (article/letter/editorial) | | Paleohydrology and Ore Genesis of the Southeast Missouri Lead Belts MARTIN B. GOLDHABER, STANLEYE. CHURCH...McDonnell Center for theSpace Sciences, St.Louis,Missouri 63130 ELWIN L. MOSIER, CLIFF D. TAYLOR, AND CAROL...the Old andNew LeadBeltsubdistricts of southeast Missouri. Nearly150newanalyses arereported whichcharacterize...the locusof leadbelt mineralization in southeast Missouri. Analyses arealsopresented forvarious leachfractions...fromsoutheast Missouri andinclude newdataforbothgalena andnongalena phases (chalcopyrite, sphalerite, |  | | Journal (article/letter/editorial) | | Production Research, PO Box 3385, Tulsa, O K 74 102, USA 2 Bayerisches Geoinstitut, Universitat Bayreuth,...indicated by oxide-silicate mineral assemblages (e.g. Lamb et al., 1987). Hall & Bodnar (1990) have modelled...Hall et al., 1989; Bakker & Jansen, 1991,1994; Morgan et af., 1992b; HaU & Sterner, 1993; Mavrogenes...99352-9970, USA. crepitation halos), but that the failure of hematite and chalcopyrite daughter minerals...This hypothesis is supported by the fact that chalcopyrite daughters in synthetic fluid inclusions, unlike |  | Zhao, Hesen, Wang, Qingfei, Groves, David I., Deng, Jun (2019) A rare Phanerozoic amphibolite-hosted gold deposit at Danba, Yangtze Craton, China: significance to fluid and metal sources for orogenic gold systems. Mineralium Deposita, 54 (1) 133-152 doi:10.1007/s00126-018-0845-x | Journal (article/letter/editorial) | | large granite intrusion is more than 10 km from the mine (ESM Fig. 1). The ore bodies had been mined to a...magnetotelluric sounding used during exploration at the mine (Fan et al. 2013). Metamorphic petrography Metamorphic...depth of 300 to 600 m in different sectors of the mine. Exploration data show that the Major Lode has a...quartz. d Coexistence of pyrrhotite, pyrite, and chalcopyrite (Ccp) with minor sphalerite inclusions along...pyrrhotite, scheelite, minor molybdenite, pyrite, chalcopyrite, sphalerite, and trace gold; and 2) a late ore-stage |
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