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Статті в журналах з теми "IOCG(U)"
Sillitoe, Richard H., Georgi Magaranov, Veselin Mladenov, and Robert A. Creaser. "ROSEN, BULGARIA: A NEWLY RECOGNIZED IRON OXIDE-COPPER-GOLD DISTRICT." Economic Geology 115, no. 3 (May 1, 2020): 481–88. http://dx.doi.org/10.5382/econgeo.4731.
Повний текст джерелаBrotodewo, Adrienne, Caroline Tiddy, Diana Zivak, Adrian Fabris, David Giles, Shaun Light, and Ben Forster. "Recognising Mineral Deposits from Cover; A Case Study Using Zircon Chemistry in the Gawler Craton, South Australia." Minerals 11, no. 9 (August 25, 2021): 916. http://dx.doi.org/10.3390/min11090916.
Повний текст джерелаCourtney-Davies, Liam, Cristiana L. Ciobanu, Simon R. Tapster, Nigel J. Cook, Kathy Ehrig, James L. Crowley, Max R. Verdugo-Ihl, Benjamin P. Wade, and Daniel J. Condon. "OPENING THE MAGMATIC-HYDROTHERMAL WINDOW: HIGH-PRECISION U-Pb GEOCHRONOLOGY OF THE MESOPROTEROZOIC OLYMPIC DAM Cu-U-Au-Ag DEPOSIT, SOUTH AUSTRALIA." Economic Geology 115, no. 8 (August 27, 2020): 1855–70. http://dx.doi.org/10.5382/econgeo.4772.
Повний текст джерелаCourtney-Davies, Ciobanu, Verdugo-Ihl, Slattery, Cook, Dmitrijeva, Keyser, et al. "Zircon at the Nanoscale Records Metasomatic Processes Leading to Large Magmatic–Hydrothermal Ore Systems." Minerals 9, no. 6 (June 16, 2019): 364. http://dx.doi.org/10.3390/min9060364.
Повний текст джерелаXing, Yanlu, Yuan Mei, Barbara Etschmann, Weihua Liu, and Joël Brugger. "Uranium Transport in F-Cl-Bearing Fluids and Hydrothermal Upgrading of U-Cu Ores in IOCG Deposits." Geofluids 2018 (August 28, 2018): 1–22. http://dx.doi.org/10.1155/2018/6835346.
Повний текст джерелаReid, Anthony. "The Olympic Cu-Au Province, Gawler Craton: A Review of the Lithospheric Architecture, Geodynamic Setting, Alteration Systems, Cover Successions and Prospectivity." Minerals 9, no. 6 (June 20, 2019): 371. http://dx.doi.org/10.3390/min9060371.
Повний текст джерелаRodriguez-Mustafa, Maria A., Adam C. Simon, Laura D. Bilenker, Ilya Bindeman, Ryan Mathur, and Edson L. B. Machado. "The Mina Justa Iron Oxide Copper-Gold (IOCG) Deposit, Peru: Constraints on Metal and Ore Fluid Sources." Economic Geology 117, no. 3 (May 1, 2022): 645–66. http://dx.doi.org/10.5382/econgeo.4875.
Повний текст джерелаCHU, Geng, and Xiaoyong YANG. "Geochemical Constraints on the Anqing Ore-cluster Field in Anhui: An IOCG (-U) Mineralization System." Acta Geologica Sinica - English Edition 88, s2 (December 2014): 348–49. http://dx.doi.org/10.1111/1755-6724.12372_1.
Повний текст джерелаSchlegel, Tobias U., Renee Birchall, Tina D. Shelton, and James R. Austin. "MAPPING THE MINERAL ZONATION AT THE ERNEST HENRY IRON OXIDE COPPER-GOLD DEPOSIT: VECTORING TO Cu-Au MINERALIZATION USING MODAL MINERALOGY." Economic Geology 117, no. 2 (March 1, 2022): 485–94. http://dx.doi.org/10.5382/econgeo.4915.
Повний текст джерелаCiobanu, Cristiana L., Max R. Verdugo-Ihl, Ashley Slattery, Nigel J. Cook, Kathy Ehrig, Liam Courtney-Davies, and Benjamin P. Wade. "Silician Magnetite: Si–Fe-Nanoprecipitates and Other Mineral Inclusions in Magnetite from the Olympic Dam Deposit, South Australia." Minerals 9, no. 5 (May 20, 2019): 311. http://dx.doi.org/10.3390/min9050311.
Повний текст джерелаДисертації з теми "IOCG(U)"
Kontonikas-Charos, A. "Albitization and REE-U-enrichment in IOCG systems: insights from Moonta-Wallaroo, Yorke Peninsula, South Australia." Thesis, 2013. http://hdl.handle.net/2440/106289.
Повний текст джерелаIron Oxide Copper Gold (IOCG) deposits are the products of crustal-scale metasomatic alteration, generally considered to be associated with the emplacement of large felsic intrusions. These systems are typified by zoned, broad alteration haloes comprising the products of an early, barren albitization event, and late, ore-hosting potassic/calcic (skarn) alteration associated with mineralization. Yttrium and rare earth elements (REY), and also uranium, are prominent components of most IOCG systems. The REY-signatures of feldspars and accessory apatite, Fe-(Ti)-oxides and other minerals are geochemical tracers of alteration stages within a magmatic-hydrothermal system. This study sets out to identify links between magmatism and initiation of hydrothermal activity, and to test the hypothesis that albitization is a pre-requisite stage for REE-U enrichment in magmatically-derived IOCG systems. The compositions and trace element concentrations in key minerals have been analysed using scanning electron microscopy, electron probe microanalysis and laser-ablation inductively-coupled plasma mass spectrometry in a varied range of magmatic to metasedimentary lithologies from the Moonta-Wallaroo region, an area in which broad regional-scale alkali alteration is recognised. Results confirm a strong link between albitization and REE-U-enrichment. The process of albitization is seen to consume, redistribute and lock-in REY, LILE and HFSE via complex fluid-rock reactions dependent on the pre-existing mineral assemblages and fluid characteristics, providing a holistic model for IOCG-driven alkali metasomatism. The trace element signatures recorded by K-feldspar reflect a transition from magmatic to hydrothermal stages within an evolving IOCG system. Although further constraints on these signatures are required, they could prove invaluable in mineral exploration as they suggest a quantifiable distinction between alteration associated with mineralization, and regional background. This hypothesis requires testing elsewhere in the Olympic Province and in analogous terranes.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2010
Owen, N. D. "Characteristics of K-Fe alteration in relation to IOCG(U) mineralisation in the northern Yorke Peninsula." Thesis, 2015. http://hdl.handle.net/2440/118209.
Повний текст джерелаThe Moonta-Wallaroo area in the Northern Yorke Peninsula (NYP) is inferred to have been associated with the major deformation, metamorphic and magmatic event at ca. 1600-1575 Ma that affected much of eastern Proterozoic Australia. Widespread K-Fe (biotite-magnetite) alteration is genetically linked with the main pyrite ±chalcopyrite mineralising event within the Doora Member of the Wandearah Formation. Zones of high mineralisation were seen to correspond with coarsening grain size of biotite in petrological and hand samples and were supported by geochemical trends between Fe2O3, S and Cu. Later stage hematite bearing phases of alteration resulted in intense alteration and pyrite-chalcopyrite mineralisation locally within carbonate bearing zones. It is suggested that uranium enrichment is also associated with biotite-magnetite alteration but was later stripped from the highly mineralised zones by less pervasive hydrothermal fluids. U-Pb isotope analysis of zircon grains constrain the age of formation of the basement in which mineralisation occurs. The Moonta Porphyry revealed an age of 1752 ±6Ma. Based on its interdigitising relationship with the Moonta Porphyry a maximum age of sedimentation of the Doora Member is proposed at ca. 1752 Ma. The protolithic material of the Harlequin Stone was determined to be similar to that of the Doora Member and was sourced mainly from the ca. 1850 Ma Donington Suite Granitoids. A Pb207/Pb206 age of ca. 1708 Ma suggests a wider age of formation of the Wallaroo Group than previously reported in the literature. Alteration within the Oorlano Metasomatite metasediment samples showed a clear deviation in chemical characteristics from the Doora Member suggesting different styles of alteration in relation to their proximity to the Arthurton and Tickera Granites.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2015
Cave, B. W. "U-Pb geochronology and trace element analysis of apatite and calcite from Ernest Henry." Thesis, 2017. http://hdl.handle.net/2440/126656.
Повний текст джерелаErnest Henry is the largest known IOCG deposit in the Eastern Succession of the Mount Isa inlier, NW Queensland. To improve our understanding of the timing of alteration and mineralisation in the Ernest Henry deposit, we attempt to date apatite from the Interlens (a pre-mineralization structure) and the ore-stage breccia, and calcite from the Interlens, ore-stage breccia and post-mineralization alteration using the in-situ U-Pb LA-ICP-MS method. This also approach provides the opportunity to examine the trace element composition of the minerals, which can be used to identify their sources and constrain metasomatic processes. Coarse-grained apatite from Interlens was dated at 1581 ± 16 Ma, coeval with regional peak metamorphic conditions and D2 deformation of the Isan Orogeny. Finer-grained apatite from the Interlens produced an age of 1557 ± 23 Ma, possibly representing regional D2, D2.5 or D3 deformation, coeval with retrograde metamorphic conditions. Ore-stage apatite produced an age of 1529 ± 39 Ma, coeval with the accepted age for sulphide mineralisation, D3 deformation and the formation of the nearby Mount Margaret Granite. Calcite samples were unable to be dated by this method, as the samples were dominated by common lead. Trace element analysis indicate that apatite from the Interlens and ore-stage assemblage were sourced from magmatic/hydrothermal fluids. Furthermore, metasomatism and coupled dissolution re-precipitation reactions of apatite were induced by a Na and/or Ca rich fluid, possessing varying amounts of Cl and S. Calcite from this study displays similarities with altered granites, and greisen type deposits, likely the result of fluid diffusing through the heavily altered Mount Fort Constantine host rocks. This study also geochemically links calcite from the Ernest Henry and the nearby E1 deposit, suggesting the REE composition of calcite may be used to link hydrothermal systems from various deposits.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2017
Chalk, H. C. "Mesoproterozoic bimodal magmatism of southern Australia: assessing relative mantle input and implications for IOCG mineralisation prospectivity." Thesis, 2014. http://hdl.handle.net/2440/109703.
Повний текст джерелаMesoproterozoic magmatism of the Gawler Craton and the Curnamona Province demonstrates regions of variable mantle input characteristics. Zircons from Hiltaba Suite granitoids and Gawler Range Volcanics, Gawler Craton, return εHf(T) values ranging from +7.1 to -0.4, +2.0 to -7.4, and +0.2 to -5.3 from the western, central, and eastern Gawler Craton respectively. Ninnerie Supersuite granitoids and Benagerie Volcanic Suite, Curnamona Province, return εHf(T) values ranging from +2.5 to -3.8. Mantle input modelling of the central/eastern Gawler Craton and the Curnamona Province returns similar mantle input fraction values ranging from 0.1 to 0.6, averaging 0.3, and 0.1 to 0.6, averaging 0.3, respectively. Hiltaba Suite magmatism of the western Gawler Craton is compositionally more juvenile than the central and eastern regions. The western Gawler Craton mantle input fractions range from 0.2 to 0.9 averaging 0.5, more elevated than the central/eastern regions of the Gawler Craton and the Curnamona province. The Benagerie Ridge region of the Curnamona Province displays similar bimodal ca. 1590 Ma magmatism, εHf(T) values, mantle input characteristics, crustal preservation (exhumation) and regional iron oxide copper-gold alteration as the highly prospective Olympic IOCG Province, Gawler Craton.
Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2014
Courtney-Davies, Liam. "Geochronology of Iron Oxides and Development of Matrix-Matched Reference Material for Routine U-Pb Dating." Thesis, 2019. http://hdl.handle.net/2440/123663.
Повний текст джерелаThesis (Ph.D.) -- University of Adelaide, School of Chemical Engineering & Advanced Materials, 2020
Owen, Nicholas Daniel. "The mineralogical deportment of radionuclides in South Australian Ca-Au-(U) ores." Thesis, 2019. http://hdl.handle.net/2440/123640.
Повний текст джерелаThesis (Ph.D.) -- University of Adelaide, School of Chemical Engineering & Advanced Materials, 2020
Тези доповідей конференцій з теми "IOCG(U)"
Zygo, W., D. T. Kieu, and H. D. Van. "U-238 in IOCG Sin Quyen deposit, North Vietnam." In EAGE-GSM 2nd Asia Pacific Meeting on Near Surface Geoscience and Engineering. European Association of Geoscientists & Engineers, 2019. http://dx.doi.org/10.3997/2214-4609.201900449.
Повний текст джерелаNeymark, Leonid A., Chris Holm-Denoma, A. J. Pietruszka, C. J. Meighan, and Richard J. Moscati. "IN SITU LA-ICPMS U-PB GEOCHRONOLOGY OF APATITE FROM IOA AND IOCG DEPOSITS, ST. FRANCOIS MOUNTAINS, SOUTHEAST MISSOURI, USA." In GSA Annual Meeting in Denver, Colorado, USA - 2016. Geological Society of America, 2016. http://dx.doi.org/10.1130/abs/2016am-279719.
Повний текст джерелаЗвіти організацій з теми "IOCG(U)"
Gandhi, S. S. World Fe Oxide +/- Cu-Au-U (IOCG) deposit database. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2015. http://dx.doi.org/10.4095/296424.
Повний текст джерелаCorriveau, L. Iron-oxide and alkali-calcic alteration ore systems and their polymetallic IOA, IOCG, skarn, albitite-hosted U±Au±Co, and affiliated deposits: a short course series. Part 1: introduction. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2017. http://dx.doi.org/10.4095/300241.
Повний текст джерелаCorriveau, L., J. F. Montreuil, O. Blein, E. Potter, M. Ansari, J. Craven, R. Enkin, et al. Metasomatic iron and alkali calcic (MIAC) system frameworks: a TGI-6 task force to help de-risk exploration for IOCG, IOA and affiliated primary critical metal deposits. Natural Resources Canada/CMSS/Information Management, 2021. http://dx.doi.org/10.4095/329093.
Повний текст джерелаCorriveau, L. Les systèmes minéralisateurs à oxydes de fer et altération à éléments alcalins (±calciques) et leurs gîtes IOA, IOCG, skarns, U±Au±Co (au sein d'albitites) et affiliés: une série de cours intensifs. Partie 1 : introduction. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2017. http://dx.doi.org/10.4095/300242.
Повний текст джерелаCorriveau, L., E. G. Potter, J. F. Montreuil, O. Blein, K. Ehrig, and A. F. De Toni. Iron-oxide and alkali-calcic alteration ore systems and their polymetallic IOA, IOCG, skarn, albitite-hosted U±Au±Co, and affiliated deposits: a short course series. Part 2: overview of deposit types, distribution, ages, settings, alteration facies, and ore deposit models. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/306560.
Повний текст джерелаCorriveau, L., E. G. Potter, J. F. Montreuil, O. Blein, K. Ehrig, and A. F. De Toni. Les systèmes minéralisateurs à oxydes de fer et altération à éléments alcalins (±calciques), et leurs gîtes IOA, IOCG, skarns, U±Au±Co (au sein d'albitites) et affiliés : une série de cours intensifs. Partie 2 : Aperçu général des types de gîtes, distribution, âges, contextes, exemples, faciès d'altération et modèles métallogéniques. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 2018. http://dx.doi.org/10.4095/308269.
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