| | Report (volume) | Geologic Setting of the Hamme Tungsten District North Carolina and Virginia GEOLOGICAL SURVEY BULLETIN ... Prepared in cooperation with the North Carolina Department of Conservation and Development, Division... Geologic Setting of the Hamme Tungsten District North Carolina and Virginia By JOHN M. PARKER 3o CONTRIBUTIONS...northeastern part of the Carolina slate belt. Prepared in cooperation with the North Carolina Department of Conservation...rocks_______________________________.____________ Biotite gneisses__________________________________________ | | | Journal (article/letter/editorial) | TUNGSTEN DEPOSIT NEAR TOWNSVILLE, NORTH CAROLINA Wrlr,rau A. Wrrrre, Dioision of Mineral Resources, IVorthCarolina...Deparlmentof Conseraation and.Deaelopment, Raleigh,N orth Carolina. Arsrnecr The tungsten deposit near Townsvilie...economically significant tungsten deposits in Vance County, N. C., representsnot only the development of...was discoveredby Mr. Joseph Hamme of Oxford, North Carolina, and Mr. Richard H. Hamme of Virgilina, Virginia... It is located near the northwest corner of Vance County a short distance south of the Virginia State | | | Report (volume) | (D) (E) Tungsten deposits of Vance County, N. C., and Mecklenburg County, Va., by G. H. Espenshade (published...deposits near Seiad and McGuffy Creeks, Siskiyou County, Calif., by F. G. Wells, C. T. Smith, G. H. Rynearson...Chromite deposits of Boulder River area, Sweetgrass County, Mont., by A. L. Howland, E. M. Garrels, and W...corundum deposits in the Buck Creek peridotite, Clay County, N. C., by J. B. Hadley (published in December...of the tungsten deposits of Vance County, N. c., and Mecklenburg County, Va â˘â˘â˘.â˘â˘â˘â˘â˘...â˘â˘â˘â˘. Geologic | | | Journal (article/letter/editorial) | TungstenQueenDeposit,HammeDistrict,VanceCounty, North Carolina:A StableIsotopeStudyof a Metamorphosed...Rž⢠Abstract The TungstenQueenmine, Vance County,North Carolina, is a large quartz-huebnerite vein depositof...deposit,a singlevein in the Hamme district,Vance County,North Carolina,has a geologicsettingand vein mineralogythat...also indicate that the deposit in the Cordilleraof North and SouthAmerica (e.g., studies have made substantial...the tungstenveins Hamme tungstendistrict,Vance County, North 523 524 T. CASADEVALL AND R. O. RYE | | Rotherham, Jackie F., Blake, Kevin L., Cartwright, Ian, Williams, Patrick J. (1998) Stable isotope evidence for the origin of the Mesoproterozoic Starra Au-Cu deposit, Cloncurry District, Northwest Queensland. Economic Geology, 93 (8) 1435-1449 doi:10.2113/gsecongeo.93.8.1435 | Journal (article/letter/editorial) | School ofEarthSciences, James CookUniversity, Townsville, Queensland 4811,Australia IAN CARTWRIGHT, Department...School ofEarthSciences, James CookUniversity, Townsville, Queensland 4811,Australia Abstract New stableisotopedataare...actinolite), (2) localized K-Fe metasomatism (biotite-magnetite-hematite-quartz-pyrite), and (3) mineralization...Advanced Analytical Centre,James CookUniversity, Townsville, Queensland 4811,Australia. ironstones at the.... :' Z./,,,, ,, ,, ⢠⢠'f .... If ....... NORTH Ironstone - magnetite ricl⢠Ironstone - hematite | | | Journal (article/letter/editorial) | This article was downloaded by: [North Carolina State University] On: 09 December 2012, At: 12:33 Publisher:...of Geology, James Cook University of North âźQueensland, Townsville, Qld, 4811, Australia Version of record...DE JONG AND P. J. WILLIAMS Downloaded by [North Carolina State University] at 12:33 09 December 2012...of Geology, James Cook University of North ~ Queensland, Townsville Qld 4811, Australia A giant alteration...Maronan prospect Pb-Zn-Cu-Au Downloaded by [North Carolina State University] at 12:33 09 December 2012 | | | Journal (article/letter/editorial) | School of Earth Sciences, James Cook University, Townsville, Queensland 4811, Australia ABSTRACT Synchronous...the last garnet-stable event, D3. The D3 Cl-rich biotite in the gneiss is intergrown with garnet in veins...veins filled with Cl-rich biotite, in conjunction with the distribution of biotite-filled veins across the...dĂŠformation oĂš le grenat ĂŠtait stable, D3. La biotite de la gĂŠnĂŠration D3 dans le gneiss, riche en Cl...remplies de biotite riche en chlore, ainsi que la distribution de telles veines de biotite de part et | | | Journal (article/letter/editorial) | Department of Earth Sciences , James Cook University , Townsville, Qld, 4811, Australia Published online: 09 May...Department of Earth Sciences, James Cook University, Townsville, Qld 4811, Australia. Recent discoveries east...steeply inclined, generally tight, polyharmonic north-trending folds with amplitudes up to at least several...suggests these are part of an arcuate, generally north-trending plutonic belt that extends under the Phanerozoic...I-type granitoids including tonalite, granodiorite, biotite monzogranite and alkali feldspar granite (Wyborn | | | Journal (article/letter/editorial) | sequences and foliated chlorite-biotite-magnetite schists. The ironstones strike north-south and occur as discontinuous...(2) localised K-Fe metasomatism consisting of biotite-magnetite-hematitequartz-pyrite and (3) the mineralising...magnetite-pyritechalcopyrite-gold and extreme chloritisation of biotite. The Na dominant alteration occurs throughout the...for at least 50 km to the east and 150 km to the north of Starra. The ironstones were products of localised...Earth Sciences, James Cook University of North Queensland, Townsville, Qld, 4811, Australia gold:copper ratios | | | Journal (article/letter/editorial) | 4811, Townsville, Australia Advanced Analytical Centre, James Cook University, QLD 4811, Townsville, Australia...MnNCKFMASH system for zoned garnet porphyroblasts (e.g. Vance and Mahar, 1998). By selecting samples based on...the deformation and metamorphic history of the North Australian Craton (NAC) that have not been recognized...have been outlined in a number of studies (e.g. Vance and Mahar, 1998; Tinkham et al., 2001) and will...contouring the garnet end member compositions (e.g. Vance and Mahar, 1998) of XMn (spessartine), XCa (grossular) | | | Journal (article/letter/editorial) | Environmental Sciences, James Cook University, Townsville, Australia Centre for Exploration Targeting,...expected to break down to allanite at or near the biotite isograd (e.g., Wing et al., 2003). Higher-grade...refractory minerals (e.g., monazite inclusions in biotite or quartz), provided that diffusion is slow compared...(âź350â400 ⌠C) greenschist facies rocks in the north to an upper amphibolite facies (âź650â700 ⌠C) migmatitic...(Fig. 1). The prograde sequence starts at the biotite zone, which is followed successively by the stauroliteâandalusite | | | Journal (article/letter/editorial) | School of Earth Sciences, James Cook University, Townsville, Queensland 4811, Australia G. J. Davidson Centre... act actinolite, alb albite, apa apatite, bio biotite, cal calcite, chl chlorite, cpx clinopyroxene,...thrusting, in an early structural event (D1). Upright, north-trending folds and pervasive fabric development...intrusions and is characterized by a K-feldspar-, biotite-, amphibole-, magnetite-, calcite- and sulphide-rich...carbonate) with variable components of metamorphic biotite, quartz, K-feldspar, titanite, magnetite and scapolite | | | Journal (article/letter/editorial) | EarthSciences, JamesCookUniversity ofNorthQueensland, Townsville, Queensland 4811,Australia Abstract TheEloisedeposit...(stageI) wasoverprinted by stageII hornblende-biotite-quartz veinsandalteration; stage III chalcopyrite... Primary inclusions and associated hornblende-biotite assemblages in premineralization veinsindicatea...peakmetamorphism (Laing,1991; maticsystem. hornblende-biotite alteration andchalcopyriteWilliamsandBlake,1993)...earlypervasive ofthreemainphases. D⢠comprised north-south compressionet al.,1995).Theregional andNa-Ca+ | | Laukamp, C., Cudahy, T., Thomas, M., Jones, M., Cleverley, J. S., Oliver, N. H.S. (2011) Hydrothermal mineral alteration patterns in the Mount Isa Inlier revealed by airborne hyperspectral data. Australian Journal of Earth Sciences, 58 (8) 917-936 doi:10.1080/08120099.2011.571287 | Journal (article/letter/editorial) | Environmental Sciences, James Cook University , Townsville, Qld, 4811, Australia b CSIRO Earth Science...Environmental Sciences, James Cook University, Townsville, Qld 4811, Australia. CSIRO Earth Science and...breccia pipes in the northern Cloncurry District north of the Saxby Granite (Suicide Ridge). The MgOH and...muscovite-bearing Gin Creek Granite (Wonga Granite) and the north-eastern part by the highly potassic Mount Dore Granite...fluid channels 2âbreccia pipes (e.g. Suicide Ridge north of the Saxby Granite). The most prominent metasomatic | | | Journal (article/letter/editorial) | Department of Earth Sciences, James Cook University, Townsville, Qld 4811, Australia. 2 Laing Exploration Pty...high temperature (>450°C) stage II hornblende + biotite alteration. Stage III sulfide mineralisation fractured...mineralisation hosted by mafic silicate (hornblende + biotite) alteration, and is associated with a suite of...was a major east-west compressive event producing north-south upright folds and associated high-grade schistosity...syncline (Laing 1990a). The tight fold style and north-south strike 431 suggest it is a D2 structure | | | Journal (article/letter/editorial) | Coen Region, north Queensland: Implications for major tectonothermal events in east and north Australia...Coen Region, north Queensland: Implications for major tectonothermal events in east and north Australia...Coen Region, north Queensland: implications for major tectonothermal events in east and north Australia...in the Coen Region (Coen and Yambo Inliers) of north Queensland. These include the Proterozoic Yambo...and the Palaeozoic Pama and Kennedy Provinces. North Queensland underwent two major crust-forming periods | | Babo, Joao, Spandler, Carl, Oliver, Nicholas H.S., Brown, Mat, Rubenach, Michael J., Creaser, Robert A. (2017) The High-Grade Mo-Re Merlin Deposit, Cloncurry District, Australia: Paragenesis and Geochronology of Hydrothermal Alteration and Ore Formation. Economic Geology, 112 (2) 397-422 doi:10.2113/econgeo.112.2.397 | Journal (article/letter/editorial) | Geology Research Centre, James Cook University, Townsville, Queensland 4811, Australia 2 Chinova 3 Department...Mo-CuAu-U Lanhamâs Shaft prospect, located 50 km north of Merlin (Fig. 2; Babo, 2009, 2014; Babo et al...into three main regions that are roughly oriented north-south, which are, from west to east, the Western...Mount Elliott/Swan Cu-Au deposit, located 15 km north of the Mount Dore and Merlin deposits (Williams...muscovite and elongated quartz aggregates. Rare biotite and amphibole, as well as chlorite formed after | | | Journal (article/letter/editorial) | Departmentof Geology,JamesCookUniversityof North Queensland,Townsville,Queensland4811, Australia AND ANITA ...Division of ExplorationGeoscience, P.O. Box 136, North Ryde, New SouthWales 2113, Australia Abstract The...situatedapproximately280 km west-northwestof Townsville, North Queensland, is currentlyAustralia'ssecondlargestgoldproducer...resources are 42.6 million metric km west-northwestof Townsville,northQueensland, tonsaveraging1.43 g/metricton...gold-richsubvolcanic breccia-hosted depositbe- Road,Townsville,Queensland4812, Australia. 810 Au BRECCIAPIPE | | Pollard, P. J., Taylor, R. G., Peters, L. (2005) Ages of Intrusion, Alteration, and Mineralization at the Grasberg Cu-Au Deposit, Papua, Indonesia. Economic Geology, 100 (5) 1005-1020 doi:10.2113/gsecongeo.100.5.1005 | Journal (article/letter/editorial) | School of Earth Sciences, James Cook University, Townsville, Queensland 4811, Australia AND LISA PETERS...McDowell et al. (1996) reported K-Ar ages for 15 biotite separates from intrusive rocks in the Ertsberg...percent phenocrysts of plagioclase, amphibole, and biotite in a microcrystalline matrix (Fig. 7A). A few percent...phenocryst population (1â2 mm). Amphibole and biotite comprise approximately 10 to 15 vol percent of...destructive alteration that includes Kfeldspar, biotite, and magnetite stages. MacDonald and Arnold (1994) | | | Journal (article/letter/editorial) | Department of Earth Sciences, James Cook University, Townsville, Qld 4811, Australia. Ortho-amphibolites associated...predominantly of hornblende and plagioclase with traces of biotite, locally developed garnet and accessory titanite...alteration in the form of hedenbergite-garnet and biotite-garnet rocks (Chapman 1993) Maramungee amphibolites...below). Biotite is absent from some rocks but is more abundant than hornblende in others. The biotite-rich...modal abundances of garnet. Amphibolites lacking biotite contain titanite as the accessory Ti phase whereas | | | Journal (article/letter/editorial) | Research Centre and JCU School of Earth Sciences, Townsville, Qld 4811, Australia Received 29 June 2006; accepted...mineralisation in the Proterozoic Cloncurry District of north-eastern Australia. Structural and mineralogical...actinoliteâcalciteâ(quartz, apatite, magnetite, biotite)-rich hydrothermal infill and adjacent albite-...characterised by a medium-grained calciteâactinoliteâbiotiteâ(magnetite, dolomite, quartz)-rich assemblage with...assemblages with >50% calcite and subordinate quartz, biotite, dolomite, K-feldspar and scapolite. Alteration | | | Journal (article/letter/editorial) | granites in the main East pluton, Hinchinbrook Island, North Queensland, Australia P. J. STEPHENSON Geology Department...Department, James Cook University, Townsville,Australia 48 1 1 Hinchinbrook is an island 36km long and...Island lies close to the north Queensland mainland, 130km north of Townsville (Figure 1) and is 36km long...Figure I . Map of Hinchinbrook Island, 130 km north of Townsville area (De Keyser rt cd. 1965). De Keyser...are plagioclase, fresh arfvedsonite, chloritized biotite, 328 P. J . STEPHENSON Mt Straw s zoe Bay | | | Journal (article/letter/editorial) | Aitkenvale, Townsville, Qld, 4814, Australia b Department of Geology , James Cook University of North Queensland...Queensland, James Cook University Post Office , Townsville, Qld, 4811, Australia c The Australian Mineral...Aitkenvale, Townsville, Qld 4814, Australia. Department of Geology, James Cook University of North Queensland...Queensland, James Cook University Post Office, Townsville, Qld 4811, Australia. 3 The Australian Mineral Development...given by Webb (1976). Replicate analyses of USGS biotite LP-6 gave a value of 1.93 x 10' moles/g. Potassium | | | Journal (article/letter/editorial) | EarthSciences, JamesCookUniversity of NorthQueensland, Townsville, Queensland 4811,Australia Abstract Pegmont...feldspar Ăą biotiteveinsandK feldsparmuscovite-biotite alteration together withbed-selective garnet(intermediate...AmperaRayaNo. net) and pelitie schists (quartz + biotite + muscovite + micro9, Kemang, Jakarta 12560,Indonesia...conditions of structures thatare tightto isoclinal, north-south-trending, 550øC and3 kbar(el.Jaques etal....intrusive contact at surface. A small outlopeof garnet-biotite-gahnite rockandthe metasediments aboveandbelowarerichin | | RUBENACH, M, FOSTER, D, EVINS, P, BLAKE, K, FANNING, C (2008) Age constraints on the tectonothermal evolution of the Selwyn Zone, Eastern Fold Belt, Mount Isa Inlier. Precambrian Research, 163 (1) 81-107 doi:10.1016/j.precamres.2007.08.014 | Journal (article/letter/editorial) | Environmental Sciences, James Cook University, Townsville, Qld 4811, Australia b pmd*CRC, Advanced Analytical...Analytical Centre, James Cook University, Townsville, Qld 4811, Australia c pmd*CRC, Research School of...dominant S2a regional foliation formed as upright northâsouth structures. Local overturning of D2 structures...produced steep upright folds and crenulations with northânorthwest and northeast trending axial surfaces...(2006). Also shown are locations of generalized northâsouth and eastâwest FIAâs (foliation intersection |
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