 | | Report (issue) | | BEVAN, State Geologitt Bulletin 43 Ztnc arrd Lead Region of Southwestern Virginia With e Section on thc...BEVAN, State Geologist Bulletin 43 Zinc and Lead Region of Southwestern Virginia With a Section "" .T...provinces of Virginia. Lead was first mined in this region in LTSA and zinc in lBZ9. The only report issued...ll-ffiT*T'il*i;________:________________"_____:- 22 27 30 J) Ivanhoe limestone member Shady dolomite south of Austi...------Roberts 59 59 60 69 60 62 OJ OJ 64 Ivanhoe fault ---------------- ------- CarterFerryfau1t----_---_- |  | | Journal (article/letter/editorial) | | Au-Cu-Bi Iron Oxide Deposits of the Tennant Creek Inlier, Australia: An Integrated Geologic and Chemical...ROGER G. SKIRROW† Geoscience Australia, GPO Box 378, Canberra, A.C.T., Australia 2601 AND JOHN L. WALSHE...Western Australia, Australia 6102 Abstract Iron oxide-associated Au-Cu-Bi deposits of the Tennant Creek...comparatively little exploration attention in the Tennant Creek district. Introduction A DIVERSE array of iron...of the Tennant Creek gold field (Davidson and Large, 1998). Production from the Tennant Creek gold field |  | | Journal (article/letter/editorial) | | study of areal features, inasmuchas accessto the mine at Austinville,exceptto the inactivetop (adit) level...lead beenminedcommercially-in the Austinville, Ivanhoe, Cedar Springs,and Rye Valley districts. Present...mining is confinedentirely to Austinville and Ivanhoe. These four districtslie within a 3o-mile strip...Tennessee: (I) New Prospect district; (2) Straight Creek district; (3) Evanstondistrict; (4) Copper Ridge...Eve Mills prospect;(I 5) Hambright mine (abandoned);(I6) Hardwick mine (abandoned). ' ,. '•'I*[ Virginia: |  | | Report (volume) | | production..-..-____.._-_--_____--_____________ Mine workings-------------------------------------------Geology...mine_______________---_-__--______-_-_--____--.____'__ Ivanhoe and Ninety mines_____--------_-_--------------------Copper...mine________-----_ -_--_--------------------_ Owl mine and vicinity_______--_--- .__--_-_____-____---__-_...mine_-___-__----_----_-_---------------------Lost Mine and Gold Spot claims.__-_--___-__---__-____-_-___--_... Lion No. 2 mine.___.____-_-_----_----_--_---______-_-_--_ 133 Lion (Rapp No. 2) mine.------------------------------ |  | | Journal (article/letter/editorial) | | arefoundlargely in twomajorpalcoaquifers in the region,the LowerCambrianShadyDolomiteandthe LowerOrdovician... twomajorpalcoaquifers (Kesler et al., 1989).Sphalerite et al., 1994a).The older of these,the Lower CambrianClastic...veryminorpyrite,galena,sphalerite, andenargitein (Fig.1).Thesedeposits consist of sphalerite andsparrydolo- veinsandmasses...Immelminesample, alldatareported hereareforsphalerite. Sphalerite 6S4S values (50analyses) rangefrom27.0to 36.1...Sulfurisotope compositions of Mississippi Valley-type sphalerite a well-defined zoning,deposits at bothendsof |  | | Report (volume) | | OTIS SMITH, DIEECTOB GEOLOGY OF THE BERBERS BAY REGION ALASKA BY ADOLPH KNOPF WASHINGTON GOVERNMENT................................ Situation of the region...............................................................................:.............. Sphalerite.................................................. 38 Ivanhoe mine.......................................................... 38 Horrible mine..........39 Bear mine. ............................................................ 39 Kensington mine........ |  | | Journal (issue) | | the Civil War period. In order to feed the huge Northern and Southern war machines that developed in the...mines in Wythe County, Virginia. At the same time, Northern military activities in southwestern Virginia focused...in the concentrated deposits in the Austinville-Ivanhoe district in southern Wythe County (Currier, 1935)...Shady Formation, host rock of the Austinville-Ivanhoe sulfide metal deposits. According to Sweet and...The ore mineralogy consists mostly of lenses of sphalerite-pyrite-galena, sulfides of zinc, iron, and lead |  | Duncan, R. J., Hitzman, M. W., Nelson, E. P., Togtokhbayar, O. (2014) Structural and Lithological Controls on Iron Oxide Copper-Gold Deposits of the Southern Selwyn-Mount Dore Corridor, Eastern Fold Belt, Queensland, Australia. Economic Geology, 109 (2) 419-456 doi:10.2113/econgeo.109.2.419 | Journal (article/letter/editorial) | | Dore Corridor, Eastern Fold Belt, Queensland, Australia Robert J. Duncan,1,2,† Murray W. Hitzman,1 Eric...V6T 1Z4, Canada 3Ivanhoe Australia, PO Box 529, Cloncurry, QLD 4824, Australia Abstract The Eastern fold...the Mount Isa inlier in northwest Queensland, Australia, contains numerous IOCG deposits, many of which...in the SelwynMount Dore corridor (Fig. 1). The region underwent deformation, metamorphic, hydrothermal...ET AL. Mount Isa Inlier Mavis Granodiorite AUSTRALIA 21 00’ o Ernest Henry Mines/Prospects in SelwynMount |  | Duncan, R. J., Stein, H. J., Evans, K. A., Hitzman, M. W., Nelson, E. P., Kirwin, D. J. (2011) A New Geochronological Framework for Mineralization and Alteration in the Selwyn-Mount Dore Corridor, Eastern Fold Belt, Mount Isa Inlier, Australia: Genetic Implications for Iron Oxide Copper-Gold Deposits. Economic Geology, 106 (2) 169-192 doi:10.2113/econgeo.106.2.169 | Journal (article/letter/editorial) | | Corridor, Eastern Fold Belt, Mount Isa Inlier, Australia: Genetic Implications for Iron Oxide Copper-Gold...of Technology, GPO Box U1987, Western Australia 6845, Australia Mines Ltd., World Trade Center, Suite...subduction along the southern margin of the North Australia craton; these reservoirs have been periodically...several mineralizing events have taken place in the region. Existing geochronological data (Fig. 2) indicate...V V V V V V V V V V V V V V Snake Creek Anticline V V V V V V V Eloise V V V |  | | Journal (issue) | | geologic understanding of the new national offshore territory. This effort was in response to President Rea...States,the Commonwealthsof Puerto Rico and the Northern Mariana Islands, and U.S. temtories and possessions...its territories, as well as in the Great Lakes region. Regional and topical studies have been undertaken...or more major advances of glacial ice sheets in northern latitudes, accompanied by crustal deformation...blanket-like sheet deposits. The north Atlantic region contains an estimated 340 billion cubic meters |  | | Journal (article/letter/editorial) | | andMineralogy,P.O.Box136, NorthRyde,NewSouthWales2113,Australia Abstract Leadisotopeanalyses fromfour Austra...Isa-McArthurRiver belt in northern tered lead isotopepatterns.Theseresultssuggested Australia(Gulson,1975; Richards...hostedbasemetaldepositsare morecomplicatedthan Northern Territory, and SorbyHills, Pillara,Wagon those of the...Leads in the MisPass,and Narlarla in Western Australia, which all ocsissippiValley depositshavelong been...BonaparteGulf basin in the northeastern corner of Western Australia. Accordingto Veeversand Roberts(1968), the complete |  | | Report (issue) | | HYDROTHERMAL AND MAGMATIC MINERAL DEPOSITS Page Magma, Mine,;Superior (oo. ciges Rocttactek ors eno os es snl...Aas Aha ors aes, a ce eS als oorliemWicsterme Australia cues Mee Ae Rie yt ate cleieulits rattan, cel...one mine to another within the district are so generally the same that what is said of one mine will...literature of southern Africa, India, Burma, and Australia is almost all in that language. No one of the...Geologica d’Italia Metasomatische Probleme (Book) Mine and Quarry Engineering Mineral Deposits of South |  | | Journal (article/letter/editorial) | | low-Fe sphalerite Ag-Au-Zn-Pb-Mn ± Cu Low (1–5 vol.%) Pyrrhotite, arsenopyrite, high-Fe sphalerite Au ±...argillic lithocap of the Marte porphyry gold deposit, northern Chile (see Sillitoe 1994). b Steam-heated alteration...Coipa Norte HS gold-silver orebody at La Coipa, northern Chile. Note its white, friable character. c Steam-heated...by the North Pole epithermal system, Western Australia (Harris et al. 2009). Native sulfur, a product...texture), Verbena, Drummond Basin, Queensland, Australia. e Silicified filamentous bacterial streamer fabric |  | | Report (issue) | | district-- -Carlin district Cave Creek district ----Charleston district_--Coal Mine district~ Contact district...district Cornucopia district - -Corral Creek district - Decoy district Delano district Delker districtDivide...---Goose Creek -district Halleck district -.Harrison Pass district - -Hicks district . ' Hot Creek district...district '-Huntington Creek district Island Mountain district. Ivanhoe district Jarbidge district- --Kinsley...Railroad district Robinson Mountain district-Rock Creek district Ruby Mountain Range district-Ruby Range |  | | Journal (article/letter/editorial) | | East Hill 341 Epidote alteration in the Groundhog Mine 344 Significance of dike and sill alteration 345...cross section, Ground Hog mine. 29S 11. Pre-ore dike, E436N, cross cut Oswaldo mine ................................. 296 12. Composite dike, Oswaldo mine ......... 296 13. Variation of chemical analysis with...Empire Zinc Mine ..................... 307 21. Fracture zone in Gamma dike, Oswaldo mine ..............page 1. Geology and alteration, Santa Rita copper mine 275 Following page 2. Photomicrographs of thin sections |  | | Report (volume) | | B, Tertiary bedded sand and gravel near Hanover Creek ______ 36 6. A, Brecciated granodiorite cut by network...the Silver City 30-minute quadrangle and in the territory known officially as the " central mining district...miles northwest of Deming, in Luna County. The region is served by branch lines of the Atchison, Topeka... the. Colorado Plateau, there is a mountainous region, with ranges rising, in part, from broad desert...and penetrates the more consistently mountainous region that forms the Continental Divide southwest and |  | | Report (issue) | | SURVEY CONTRIBUTIONS TO THE GOLD METALLOGENY OF NORTHERN NEVADA Richard M. Tosdal editor Open-File Report...CONTENTS Contributions to the gold metallogeny of northern Nevada Preface R.M. Tbsdfl/.....................Pb isotopic mapping of crustal structure in the northern Great Basin and relationships to Au deposit trends................................. Geology of the northern terminus of the Carlin trend, Nevada: Links between...air-fall tuffs of the Miocene Carlin Formation, northern Carlin trend Robert J. Fleck, Ted G. Theodore |  | | Journal (article/letter/editorial) | | University] at 23:14 19 October 2014 Vindicator Mine, Cripple Creek, Teller County, Colorado I n terms of sheer...past 120 years: Kalgoorlie, Western Australia, and Cripple Creek, Colorado. Although on opposite sides...tellurides associated with coarse native gold. Cripple Creek, on the other hand, has been and continues to be...is sylvanite. A historically significant Cripple Creek sylvanite specimen has been nominated for this issue’s...ROCKS & MINERALS the Golden Circle mine at Sorrento and the Cline mine at Hancock, Maine, and from a vaguely |  | | Journal (article/letter/editorial) | | Ordovician carbonatesedimentaryhost, low-iron sphalerite, minor to insignificant galena and pyrite, pervasive...subsequenterosion ica. The classicexamplesare Austinville-Ivanhoe, has removed such a large part of the evidencethat...Currier, 1935; Callahan, 1964; Brown and stagesof mine development.Althoughthere is still Weinberg, 1968;...impairingthe closesimilarityof the depositsin this sphalerite deposition. Hanshaw et al. (1971) balieve category...duced by saline groundwater. istics: 2. The sphalerite was depositedin open spaces in extremely permeable |  | | Journal (article/letter/editorial) | | IsotopicCompositionof Lead in the Austinville-Ivanhoe Pb-Zn District, Virginia NORA K. FOLEY,* A. KRISHNASINHA...Abstract Leadisotopicstudies fromthe Austinville-Ivanhoe districtof southwest Virginiademonstrate that galenasof...thoughtto haveno agesignificance. Introduction sphalerite,galena, and locally marcasiteand chalcopyritecrystallizedduring...chalcopyritecrystallizedduring the first two. The final, of sphalerite,galena, Wythe Countyin southwestern Virginia...1). The late-stagegenerationconsisted elongate sphalerite-, pyrite-,andgalena-bearing lenses fluorite,quartz |  | Leavitt, E. D., Spell, T. L., Goldstrand, P. M., Arehart, G. B. (2004) Geochronology of the Midas Low-Sulfidation Epithermal Gold-Silver Deposit, Elko County, Nevada. Economic Geology, 99 (8) 1665-1686 doi:10.2113/gsecongeo.99.8.1665 | Journal (article/letter/editorial) | | high-grade Au-Ag vein deposit located along the northern Nevada rift. It belongs to a suite of middle Miocene...additional isotopic dates throughout the Midas region constrain the timing of volcanic, tectonic, and...high-grade veins formed in fault zones throughout the region, depositing at least 4 million ounces (Moz) of...SNYDER mine exploits the largest known Au-Ag epithermal deposit along the middle Miocene northern Nevada...precious metal occurrences that formed along the northern Nevada rift between 15.6 and 15.0 Ma (John, 2001; |  | | Conference Paper/Abstract | | University of Auckland, Auckland, New Zealand 2 Ivanhoe Mines Ltd – China, The 4th Floor, No. 19 Dong Ku...Paleozoic volcanic, plutonic and sedimentary rocks. Ivanhoe geologists recognise eight main rock types in the...have become attractive exploration targets. The northern margin of North China Plate and the adjacent suture...1. Map of China. The Inner Mongolia Autonomous Region is shaded (Modified from Zhou et al., 1995). Tectonic...Autonomous Region is highlighted. (Modified from Cao et al., 2002). 399 Situated near the northern margin |  | | Journal (article/letter/editorial) | | Pliocene Epithermal Gold-Silver Deposits in the Northern Great Basin, Western United States: Characteristics...Pliocene epithermal Au-Ag deposits are present in the northern Great Basin. Most deposits are spatially and temporally...beneath the western coast of North America. In the northern Great Basin, most of the western andesite assemblage...DeLamar, Mule Canyon, Buckhorn, National, Hog Ranch, Ivanhoe, and Jarbidge districts; high-sulfidation gold...late Tertiary, epithermal Au-Ag deposits in the northern Great Basin (Fig. 1) have been an important source |  | | Report (chapter) | | Tasmania, Private Bag 126, Hobart, Tasmania 7001, Australia 2 Department of Geological Survey and Mineral...matte was produced as a by-product from the Bawdwin Mine, a volcanic-hosted massive sulphide deposit, at...also present in Myanmar (e.g. Baladokhta, Mandalay region and Shweminbon, Kalaw township, southern Shan State)...Shangalon in the Kawlin–Wutho area in Sagaing State, northern Myanmar. Copper is associated with intrusive-related...tin–tungsten mineralization in the Tanintharyi Region, southern Myanmar. Copper deposits and occurrences |  | | Report (issue) | | disconformities. Simple mineralogy (predominantly sphalerite, galena, barite, fluorite, calcite, dolomite...rock is coal or peat from which occurrences of sphalerite or anomolously high amounts of zinc have been...described from Illinois, Pennsylvania, and New York. Sphalerite, galena, and barite have been reported from numerous...Table 1 according to abundance or major product in a mine or district, with minor or by-product commodities...sandstone- or shale-hosted deposits. Occurrences of sphalerite in coal from Illinois and Pennsylvania have been |
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