Results 191 to 200 of about 14,584 (265)
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Fluids associated with carbonatitic magmatism: A critical review and implications for carbonatite magma ascent

, 2021
Carbonatites are formed from volatile-rich melts, commonly associated with a characteristic hydrothermal footprint. However, studies of their fluid inclusions are relatively scarce and heterogeneous in terms of detail and completeness of the data ...
B. Walter   +5 more
semanticscholar   +1 more source

The formation of the giant Huayangchuan U-Nb deposit associated with carbonatite in the Qingling Orogenic Belt

Ore Geology Reviews, 2020
Carbonatitic magmatism plays a significant role in outgassing carbon from mantle and the formation of rare earth element (REE), rare metal (e.g., Nb and Th) and other types of deposits. The mechanism of REE mineralization associated with carbonatite have
Shuo Xue, Ming-Xing Ling, Weidong Sun
exaly   +2 more sources

Hydrothermal alteration of pyrochlore group minerals from the Miaoya carbonatite complex, central China and its implications for Nb mineralization

, 2021
Carbonatite represents a major host rock for niobium (Nb) resources worldwide. Both magmatic and post-magmatic metasomatic processes are crucial for Nb mineralization in carbonatites.
Bin Wu   +7 more
semanticscholar   +1 more source

The role of sulfate-, alkali-, and halogen-rich fluids in mobilization and mineralization of rare earth elements: Insights from bulk fluid compositions in the Mianning–Dechang carbonatite-related REE belt, southwestern China

, 2021
Carbonatites host the world's most important rare earth element (REE) resources. The origins of REE mineralization in carbonatite-related deposits, particularly the role of hydrothermal fluids in REE mobilization and mineralization, remain enigmatic. The
Xu Zheng, Yan Liu, Lianchang Zhang
semanticscholar   +1 more source

Fingerprinting REE mineralization and hydrothermal remobilization history of the carbonatite-alkaline complexes, Central China: Constraints from in situ elemental and isotopic analyses of phosphate minerals

American Mineralogist, 2021
Carbonatites and related alkaline rocks host most REE resources. Phosphate minerals, e.g., apatite and monazite, commonly occur as the main REE-host in carbonatites and have been used for tracing magmatic and mineralization processes.
Jian-Hui Su   +6 more
semanticscholar   +1 more source

Fenites associated with carbonatite complexes: A review

open access: yesOre Geology Reviews, 2018
This research has received funding from the European Union’s Horizon 2020 research and innovation programme under grant No 689909.
Frances Wall, Samuel M Weatherley
exaly   +2 more sources

Genetic model of carbonatite hosted rare earth elements mineralization from Ambadongar Carbonatite Complex, Deccan Volcanic Province, India

, 2021
Carbonatites and associated alkaline rocks are the primary sources for REE mineralization. The Ambadongar Carbonatite Complex (ADCC) from NW Deccan Volcanic Province (DVP) constitutes the largest Carbonatite Associated REE Deposits (CARD) in India.
P. Dhote, U. Bhan, Dhananjay Verma
semanticscholar   +1 more source

Burbankite and pseudomorphs from the Main Intrusion calcite carbonatite, Lofdal, Namibia: association, mineral composition, Raman spectroscopy

Mineralogical magazine, 2021
The Neoproterozoic Lofdal alkaline carbonatite complex consists of a swarm of carbonatite dykes and two plugs of calcite carbonatite known as the ‘Main’ and ‘Emanya’ carbonatite intrusions, with associated dykes and plugs of phonolite, syenite, rare ...
M. Sitnikova   +3 more
semanticscholar   +1 more source

Light Mg isotopes in mantle-derived lavas caused by chromite crystallization, instead of carbonatite metasomatism

Earth and Planetary Science Letters, 2019
Carbonatite metasomatism plays an important role in modifying the composition of Earth's mantle, however, its effect on mantle Mg isotopic composition is poorly constrained.
Fang-Zhen Teng, Yan Xiao, Yang Sun
exaly   +2 more sources

CARBONATITES AND CARBONATITES AND CARBONATITES

The Canadian Mineralogist, 2005
Le clan des carbonatites est ici redefini dans le contexte d'une classification mineralogique et genetique, et subdivise en deux groupes: carbonatites primaires et residus carbothermaux. On souligne le fait que "carbonatite" est a la fois un terme petrographique applicable a un type de roche particulier, et un terme faisant reference a un groupe de ...
openaire   +1 more source

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