Results 171 to 180 of about 7,282 (216)

Occurrence and geochemistry of bastnäsite in carbonatite-related REE deposits, Mianning–Dechang REE belt, Sichuan Province, SW China

Ore Geology Reviews, 2019
Bastnasite is the main ore mineral in many carbonatite-related rare earth element (REE) deposits, which account for ∼51% of rare-earth oxide reserves worldwide.
Dong-Sheng Guo, Yan Liu
semanticscholar   +1 more source

Evolution of the carbonatite Mo-HREE deposits in the Lesser Qinling Orogen: Insights from in situ geochemical investigation of calcite and sulfate

Ore Geology Reviews, 2019
The Early Mesozoic Huanglongpu and Huangshui’an carbonatites in the Lesser Qinling Orogen are unique as they are associated with economic molybdenite mineralization and relatively enriched in heavy rare earth elements (HREE) compared to typical ...
Tian Bai, Wei Chen, Shao-Yong Jiang
semanticscholar   +1 more source

Geological and geochemical characteristics of the Miaoya syenite-carbonatite complex, Central China: Implications for the origin of REE-Nb-enriched carbonatite

Ore Geology Reviews, 2019
Carbonatites are well known as economic resources for rare metals, such as rare earth elements (REE) and Nb. However, the origin and evolutionary processes of carbonatites and related silicate rocks as well as the relevant rare metals enrichment ...
Jian-Hui Su, Xin-Fu Zhao, Xiao-Chun Li, Wei Hu, Mi Chen, Ying Xiong   +5 more
semanticscholar   +1 more source

Carbonatites in China: A review

Journal of Asian Earth Sciences, 2006
Abstract There are 27 known occurrences of carbonatites in China. Brief descriptions are given of all occurrences including geographical coordinates, geological setting, associated rocks, carbonatite forms, ages, mineralogy, mineralisation, and carbon and oxygen isotopic data.
Zhuming Yang, Alan Woolley
openaire   +1 more source

Geology of the Ngualla carbonatite complex, Tanzania, and origin of the Weathered Bastnaesite Zone REE ore

Ore Geology Reviews, 2019
The late Mesoproterozoic Ngualla carbonatite complex in southwest Tanzania comprises a central magnesiocarbonatite plug surrounded sequentially by an annular calcite carbonatite intrusion and fenitised felsic igneous country rocks.
W. Witt, D. P. Hammond, M. Hughes
exaly   +2 more sources

Magmatic-hydrothermal evolution of an unusual Mo-rich carbonatite: a case study using LA-ICP-MS fluid inclusion microanalysis and He–Ar isotopes from the Huangshui’an deposit, Qinling, China

Mineralium Deposita, 2021
Li Tang, T. Wagner, T. Fusswinkel, Shou-Ting Zhang, Bo Xu, Li-Hui Jia, Xin-Kai Hu   +6 more
semanticscholar   +1 more source

Petrology of ijolite series rocks from the Prairie Lake (Canada) and Fen (Norway) alkaline rock-carbonatite complexes

, 2021
John J. G. Savard, R. Mitchell
semanticscholar   +1 more source

CARBONATITE VOLCANOS OF EAST AFRICA AND THE GENESIS OF CARBONATITES

International Geology Review, 1985
Yu. L. Kapustin, A. I. Polyakov
openaire   +1 more source

Carbonatites

2021
openaire   +1 more source

Carbonatite-Alkaline Magma Immiscibility Conducing to Carbonatite REE Enrichment

2018
Carbonatite is a particular type of magmatic rocks enriched in REE relative to the majority of igneous rocks. Among the numerous carbonatites referenced worldwide, only a few of them contain economic REE concentrations widely considered as resulting from late- to post- magmatic processes.
Nabyl, Zineb, Massuyeau, Malcolm, Gaillard, Fabrice, Tuduri, Johann, Iacono-Marziano, Giada, Melleton, Jérémie, Bailly, Laurent   +6 more
openaire   +1 more source