 | | Journal (article/letter/editorial) | | Figure 1. Postcard view of the Waukon iron mine, Allamakee County, cia. 1912. John Taylor collection. ARTHUR...Unfortunately. with today’s environmental laws and mine and quarry regulations. the prolific collecting...HAROLD L. PRlOR P.O. Box 111 Columbus Junction, Iowa 52738 halprior@ louisacomm.net When we began this...too, could be cited with many other localities. Iowa contains the type locality for one mineral, iowaite...December 2014 Figure 2. Map of Iowa showing the counties. Courtesy Iowa Geological Survey. ACKNOWLEDGMENTS |  | | Journal (article/letter/editorial) | | Figure 1. The state of Iowa map; prepared by William Besse. IOW AITE Sioux County, Iowa BRUCE CAIRNCROSS ...Johannesburg PO Box 524, Auckland Park 2006 Johannesburg, South Africa brucec@uj.ac.za I T HAPPENS FROM TIME TO...1,000–1,500 feet below the surface in Sioux County, Iowa (Kohls and Rodda 1967); approximately thirty-five...known were collected at the Palabora mine, Limpopo Province, South Africa (Southwood and Cairncross 2017)...post-serpentinization chrysotile, dolomite, brucite, calcite, magnesite, and pyrite. Since the description of |  | | Journal (article/letter/editorial) | | 20513 pohwatp@si.edu FLUORITE Elmwood Mine, Carthage, Smith County, Tennessee R egular readers of this...private), the other two species being quartz and calcite. The reason that these species have such a wide...shade of purple, but it also can be blue, blue-black, red, pink, green, yellow, brown, and colorless...sphalerite, 8.8 cm high, from the Elmwood mine, Smith County, Tennessee. Note the gemmy corners of the...pieces are all from the fluorspar district, Hardin County, Illinois. Cincinnati Museum Center specimens, |  | | Journal (article/letter/editorial) | | Mineralization and Minor Base Metal Mineralization in Iowa, Wisconsin, and Illinois KEITH B. KUTZ AND PAUL...AtmosphericSciences, 253 ScienceI, Iowa StateUniversity,Ames,Iowa 50011 Abstract Minor basemetal occurrencesare...mainUpper Mississippi Valley zincleaddistrictin Iowa, Wisconsin, andIllinois.Theseoccurrences are of...whichcarbonate(eithercalciteor dolomitebut predominantly calcite)is earlyandsulfides are generallylate.Similarities...NaC1)are considerablyhigher than thosedeterminedfor calcite(4.8-5.1 equivwt %) from the mainUpperMississippi |  | Warmada, I Wayan, Lehmann, Bernd, Simandjuntak, Marolop, Hemes, Herian Sudarman (2007) Fluid Inclusion, Rare-Earth Element and Stable Isotope Study of Carbonate Minerals from the Pongkor Epithermal Gold?Silver Deposit, West Java, Indonesia. Resource Geology, 57 (2) 124-135 doi:10.1111/j.1751-3928.2007.000012.x | Journal (article/letter/editorial) | | records five paragenetic sequences, dominated by calcite in the early stage and quartz in the later stage...hydrothermal evolution. Fluid inclusions in hydrothermal calcite and quartz of all stages indicate a temperature...0 wt% NaCl equivalent). Carbon isotope data on calcite display a narrow range from −6.5 to −3.0‰ ␦13C...species, which equilibrated during the formation of calcite, is dominated by H2CO3 not far from equilibrium...the Pongkor gold–silver deposit. They consist of calcite and a small amount of rhodochrosite, kutnahorite |  | | Report (issue) | | nature of steel and the formation of rocks. .. South of the north-east plungi,tg Don monocline are a...a series of smaller anticlines plunging south-eastwards which give rise to winding sandstone scarps and...sean1s, which are worked in the North Derbyshire and South Yorkshire coalfields. The stratigraphical account...5 5 4 ·2 8 21, No. T ITLE l::hJ2_ LANCASHIRE COUNTY COUNCIL This book should ht: re1urm:d on or belore...nc1ghbl1unng t he,tl.'rlll.'IJ ~hl.'l'l ( 112) tn the south, 111,11ni.:n101r calli.! |  | | Book | | Edited by Professor Bruce Mitchell, University of Waterloo Francis Sandbach: Principles of pollution control...materials consumption per head 1949 and 1979 in the USA 5.1 5.2 vin 49 Sand and gravel, stone: output by...Bingham Canyon copper mine, Utah 190 8.2 A hypothetical open pit copper mine in a highland area of...mining in 1990 and 2000 265 11.3 Recycling metals (USA) 266 11.4 The magnitude of new energy sources ...must also turn to another Ontario university, Waterloo, to express my thanks to its professor of geography |
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