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strata bound scheelite deposits in the precambrian

Abra deposit Mulgul Station Meekatharra Shire Western
Abra deposit Mulgul Station Meekatharra Shire Western Australia Australia Located 170 km south west of Newman. Stratabound sedimentary deposit Identified from numerous exploration drillholes. The area was first explored from 1976 by Amoco then the 1990 s by Renison
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Au U Fe Mn Hg Sb W and P Deposits Volume 71st
Handbook of Strata-Bound and Stratiform Ore Deposits Volume 7 Au U Fe Mn Hg Sb W and P Deposits focuses on the characteristics properties origins and structures of Au U Fe Mn Hg Sb W and P deposits. The selection first elaborates on gold in the Proterozoic sediments of South Africa nature of the Witwatersrand gold-uranium
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Ore Genesis of the Lunwei Granite‐Related Scheelite
For granite‐related scheelite deposits Ca is commonly derived from Ca‐rich wall rocks e.g. the Shizhuyuan W deposit in the Nanling region (Mao Li 1996). Ca can also come from granitic rocks such as the giant Dahutang W deposit in North Jiangxi Province (Xiang et al . 2013 Jiang et al . 2015 ).
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Contents
Precambrian Deposits Timing Aspects of the Manganese Deposits of the Northern Cape Province (South Africa). P.G. Söhnge. With 1 Figure. 115 Time- and Strata-Bound Features of the Michigan Copper Deposits (USA). G.C. Amstutz. With 13 Figures 123 Strata-Bound Scheelite Deposits in the Precambrian Basement of San Luis (Argentina).
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Stratabound tungsten mineralization in regional
Brodtkorb de M.K. and Brodtkorb A. Strata-bound scheelite deposits in the Precambrian basement of San Luis (Argentinia). In Time and Strata-bound Ore Deposits Klemm D.D. and Schneider H.J. Eds. pp. 140–149. Berlin-Heidelberg-New York Springer 1977. Google Scholar
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Syndeposition and epigenetic modification of the strata
A Paleozoic clastic–carbonate formation containing strata-bound lead–zinc–copper deposits occurs along the southwest margin of the Tarim platform in the western Kunlun area of the Xinjiang Province in China (Fig. 1-a b Table 1).The ore deposits were associated with the Paleo-Tethys Ocean from the Devonian to the early Carboniferous Periods.
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Origin and significance of tourmaline-rich rocks in the
Tourmaline concentrations occur in strata-bound and local stratiform tourmalinites clastic metasedimentary rocks quartz-gahnite lode rocks stratiform Pb-Zn-Ag sulfide ores garnet quartzites strata-bound scheelite deposits quartz-tourmaline nodules
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Contents
Mineral Deposits in Relation to the Global Tectonic Megacycles T.P. Trurnit (With 12 Figures) 62 Strata-Bound Deposits of Argentina M.K. de Brodtkorb and A. Brodtkorb (With 1 Figure) 92 Syngenesis and Epigenesis in Strata-Bound Metamorphosed Precambrian Sulfide Deposits of India A.M. Patwardhan and S.S. Oka (With 12 Figures) 102
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Tungsten Mineralization and Metamorphic Remobilization in
The Felbertal scheelite deposit is located in the northern part of the central Hohe Tauern (Austria). It occurs in an up to 400-m-thick section of the Precambrian ( ) to Cambrian Habach Group consisting of fine- and coarse-grained amphibolites hornblendites I-type granites and quartzites.
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The copper deposits of the O okiep District South Africa
The copper deposits of the O okiep District rank amongst the top three S. African producers with an annual output of 3 million metric tons grading 1.65 Cu on average. They occur in what is now considered the S. extension of the 1200 m. y. Kibaran orogenic belt. Copper mineralization is linked to cross-cutting bodies of "noritoid" RO=0.7126−0.7250) which have been emplaced into the
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Tungsten Mineralization and Metamorphic Remobilization in
The Felbertal scheelite deposit is located in the northern part of the central Hohe Tauern (Austria). It occurs in an up to 400-m-thick section of the Precambrian ( ) to Cambrian Habach Group consisting of fine- and coarse-grained amphibolites hornblendites I-type granites and quartzites.
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Copper and Molybdenum Deposits in the United States
These deposits also range from the Precambrian to the Tertiary. They are located in cratonal shield terrains and include ore minerals of pyrrhotite chalcopyrite pentlandite cobalt sulfide and PGE. The non-porphyry molybdenum deposits account for less
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Strata bound scheelite in the Archean Malene supracrustal
The tungsten occurs as scheelite which is associated with tourmalinites and strata-bound tourmaline-rich layers in amphibolites of presumed tuffaceous origin and with an iron-formation containing high amounts of tungsten zinc copper lead molybdenum and tin. The scheelite is shown to be strata-bound and of submarine exhalative origin.
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Uranium- and thorium-bearing pegmatites of the United
The project area was restricted to Precambrian rocks which comprise a metamorphic complexmore » Although the project area is not favorable for uranium deposits according to NURE criteria an area of low resource potential for uranium thorium rare-earth elements and yttrium and niobium-tantalum was assigned to the contact zone of the Gold
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Evaporites and strata-bound tungsten mineralization
The continental-sabkha playa basins of the Mojave Desert California are suggested to be possible modern analogs—e.g. Searles Lake where the tungsten content is up to 70 PPM WO 3 in brines and 118 ppm in muds and exceeds the amount of tungsten in all known deposits in the United States. Metamorphism of a continental evaporitic sequence
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Ore GenesisThe State of the Art G.C. Amstutz Springer
Remobilization of Strata-Bound Scheelite Indicated by Tectonic Textural and Crystallographic Features in Brejui Mine NE Brazil Correlation of Strata-Bound Mineral Deposits in the Early Cretaceous Santa Metallotect of North and Central Peru. Pages . Precambrian and Phanerozoic Massive Sulphide Deposits. Pages . Bercé B.
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Mineral deposits of Europe
Precambrian structural storeys. . . 5 Iron deposits 23 Caledonian structural storey .. 5. Variscan geosynclinal-orogen structural Magnesite 23 storey 7 Scheelite-magnesite 2. 5 Post-Variscan platform superstructure . 8 Cryptocrystalline magnesite . . 25 Alpine geosynclinal-orogen superstructure 9 Barite 25 Mineral deposits 18 Pyrite
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Minerals Free Full-Text Sequential Scheelite
The Sangdong W (tungsten)-deposit is known as one of the world s largest W-deposits a magmatic–hydrothermal ore deposit including both skarn and hydrothermal alteration zones. The strata-bound characteristic of the deposit resulted in three major orebodies (hanging wall main footwall). The main ore mineral is a scheelite (CaWO4) ndashpowellite (CaMoO4) solid solution.
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Fluid Inclusion Characteristics of Tungsten Mineralization
The Lower to Middle Proterozoic Sakoli fold belt in Central India forms a triangular belt with significant mineralization of strategic minerals. The Sakoli fold belt comprises metasediments felsic and mafic volcanics with metabasalts bounded by the gneissic-migmatitic terrain. The last pulses of granitic activity in the form of quartz lenses intrude the metasediments and are associated with
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Antimony deposits in the Iberian Peninsula Economic
The quartz-stibnite-scheelite and quartz-stibnite-cinnabar associations are characteristic of the calcareous formations of Paleozoic age whereas the quartz-antimony-mercury assemblage occurs only in the lower Carboniferous of the Cantabrian zone.Some Iberian antimony deposits are interpreted to be the result of direct or indirect magmatic
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Regional Studies Volume 51st Edition
Regional Studies is a collection of papers that deals with strata-bound mineral deposits in the Eastern Alps in the Canadian Cordillera in north-central and southwest England. Other papers describe southern African stratiform ore deposits and the genesis of Irish base-metal deposits.
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Ore GenesisThe State of the Art G.C. Amstutz Springer
Remobilization of Strata-Bound Scheelite Indicated by Tectonic Textural and Crystallographic Features in Brejui Mine NE Brazil Correlation of Strata-Bound Mineral Deposits in the Early Cretaceous Santa Metallotect of North and Central Peru. Pages . Precambrian and Phanerozoic Massive Sulphide Deposits. Pages . Bercé B.
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Evaporites and strata-bound tungsten mineralization
The continental-sabkha playa basins of the Mojave Desert California are suggested to be possible modern analogs—e.g. Searles Lake where the tungsten content is up to 70 PPM WO 3 in brines and 118 ppm in muds and exceeds the amount of tungsten in all known deposits in the United States. Metamorphism of a continental evaporitic sequence
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Strata-Bound Deposits of Argentina SpringerLink
There are numerous scheelite strata-bound deposits in the Precambrian in Sierras Pampeanas of Cordoba and San Luis provinces in calc-silicate rocks associated with limestones and amphibolites. Also a copper occurrence in limestones is known in the Precambrian of Córdoba.
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Time- and Strata-Bound Ore Deposits SpringerLink
It was obvious that the new ideas at first referred to ore enrichments in sedimentary sequences nowadays summarized under the term strata-bound and mainly interpreted as stratiform or sedimentary ore deposits. Moreover the modern term "strata-bound" also includes ore mineralizations which are bound to distinct units of layered (intrusive or extrusive) igneous complexes as a general descriptive
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Regional Studies Volume 51st Edition
Regional Studies is a collection of papers that deals with strata-bound mineral deposits in the Eastern Alps in the Canadian Cordillera in north-central and southwest England. Other papers describe southern African stratiform ore deposits and the genesis of Irish base-metal deposits.
Get Price
Contents
Precambrian Deposits Timing Aspects of the Manganese Deposits of the Northern Cape Province (South Africa). P.G. Söhnge. With 1 Figure. 115 Time- and Strata-Bound Features of the Michigan Copper Deposits (USA). G.C. Amstutz. With 13 Figures 123 Strata-Bound Scheelite Deposits in the Precambrian Basement of San Luis (Argentina).
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