Results 81 to 90 of about 54,225 (159)

Evidence for an Early Cretaceous mineralizing event above the basement/sediment unconformity in the intraccratonic Paris Basin : paragenetic sequence and Sm-Nd dating of the world-class Pierre-Perthuis stratabound fluorite deposit.

, 2015
International audienceLETTEREvidence for an Early Cretaceous mineralizing eventabove the basement/sediment unconformity in the intracratonicParis Basin: paragenetic sequence and Sm-Nd datingof the world-class Pierre-Perthuis stratabound fluorite ...
Pagel, M., Guerrot, Catherine, Négrel, Philippe, Augé, Thierry, Gigoux, Morgane, Brigaud, B., Delpech, G.   +6 more
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Radioactive Assessment and Th-, Nb-Ta-, Zr-, REE-Bearing Minerals in Alkaline Syenite: Environmental Implications for Radiological Safety

Geosciences
This study focused on identifying Th-, Nb-Ta-, Zr-, and REE-bearing minerals with a multivariate statistical approach in alkaline syenite to evaluate their radiological risks, at Nikeiba, Egypt. Through microchemical analyses, by utilizing electron probe
Ahmed E. Abdel Gawad, Elena G. Panova, Mohamed M. Ghoneim, Svetlana Y. Yanson, Sultan J. Alsufyani, A. Saftah, Nadi Mlihan Alresheedi, Mohamed Y. Hanfi   +7 more
doaj   +1 more source

REE Enrichment during Magmatic–Hydrothermal Processes in Carbonatite-Related REE Deposits: A Case Study of the Weishan REE Deposit, China

, 2019
The Weishan carbonatite-related rare earth element (REE) deposit in China contains both high- and low-grade REE mineralization and is an informative case study for the investigation of magmatic–hydrothermal REE enrichment processes in such deposits.
Yan Liu, Yu-heng Jia
core   +1 more source

Hydrothermal activity and its influence on hydrocarbon accumulation in deep dolomite reservoirs of the Ediacaran Dengying Formation, Sichuan Basin

Energy Geoscience
There are abundant hydrothermal events within the Dengying Formation dolomite of the Precambrian system in southwest China. Methods including petrography identification, fluid-inclusion observation, in-situ U-Pb dating, and in-situ measurement of rare ...
Zhanlei Wang, Chan Jiang, Changcheng Yang, Yuqiang Jiang, Yifan Gu   +4 more
doaj   +1 more source

Accessory REE mineralization of the Nokeng fluorite deposit as distal facies of the adjacent Vergenoeg pipe, Bushveld Complex, South Africa

Research report submitted in partial fulfilment of the requirement for the degree of Master of Science in Economic Geology, to the Faculty of Science, School of Geoscience, at the University of the Witwatersrand, Johannesburg, 2024.The Nokeng Plattekop ...
Makhema, Relebohile Edward
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REE Mineralization of the Blockspruit Fluorite Prospect, Bushveld Granitic Complex, South Africa: Geochemical, Mineralogical and Fluid Inclusion Studies

, 2015
The Blockspruit REE prospect in northwestern Pretoria, South Africa, is hosted by the Bushveld complex. HREE-rich ferro-edenite rocks intrude into the Kenkelbos-type granite, which is present in the fluorite prospect.
Moritz, Robert, Spangenberg, Jorge, Hoshino, Mihoko, Ovtcharova, Maria, Watanabe, Yasushi, Putlitz, Benita   +5 more
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Discovery of Waimirite-(Y) in Egypt: Insights into REE Mineralization in Neoproterozoic Granite and Metasediments, Wadi Abu Rusheid, Eastern Desert

Geosciences
We report, for the first time, waimirite-(Y) in Egypt. This is only the third reported occurrence of this mineral in the world. This observation arose during our study of the rare earth element (REE) mineralization associated with the Neoproterozoic rare-
Mustafa A. Elsagheer, Hilmy E. Moussa, Ayman E. Maurice, Paul D. Asimow, Oliver D. Wilner, Maysa M. N. Taha, Adel A. Surour, Mokhles K. Azer   +7 more
doaj   +1 more source

Geochemical studies and economic perspective of light rare earth element (LREE) enriched carbonatite from Khaderpet, Eastern Dharwar Craton

Discover Geoscience
An account of petrographic features, geochemical character, enriched light rare earth elements (LREEs), and stable isotope (C–O) concentrations in carbonatite occurring in association with lamprophyre clan rock (LCR) from Khaderpet is presented here. The
Pothuri Ramesh Chandra Phani, Prabir Sengupta   +1 more
doaj   +1 more source

Mineralogical Characteristics and Luminescent Properties of Natural Fluorite with Three Different Colors. [PDF]

Materials (Basel), 2022
Ge X, Guo Q, Wang Q, Li T, Liao L.
europepmc   +1 more source

Not Only Carbonatites: Rare Earth Elements in the Silius Fluorite-Calcite Vein System (SE Sardinia, Italy)

, 2015
We present the results of an investigation for REE, carried out on the Silius fluorite vein system (SE Sardinia, Italy), which is similar to other late- to post-Hercynian mineralizations of this type in Europe.
BONI, MARIA, Spoleto, Sofia, MONDILLO, NICOLA, SANTORO, LICIA, Stellato, Francesco, BALASSONE, GIUSEPPINA   +5 more
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