B–Sr–Nd–Pb isotopic constraints on the origin of the Maoniu** alkaline syenite–carbonatite complex, SW China

Q Weng, WB Yang, HC Niu, NB Li, P Qu, Q Shan… - Ore Geology …, 2021 - Elsevier
The Maoniu** giant rare earth element deposit is genetically related to a Cenozoic
alkaline syenite–carbonatite complex. However, the origin of the alkaline complex and the …

Carbonatitic magma fractionation and contamination generate rare earth element enrichment and mineralization in the Maoniu** giant REE deposit, SW China

X Zheng, Y Liu, MP Smith, J Kynický… - Journal of Petrology, 2023 - academic.oup.com
Carbonatite intrusions host the world's most important light rare earth element (LREE)
deposits, and their formation generally requires extraordinary fertile sources, magmatic …

Temporal evolution of δ44/40Ca and 87Sr/86Sr of carbonatites: Implications for crustal recycling through time

A Banerjee, R Chakrabarti, A Simonetti - Geochimica et Cosmochimica Acta, 2021 - Elsevier
Carbonatites are igneous rocks composed of over 50% modal carbonate minerals and their
exact origin and possible mode (s) of formation are still debated. We report stable Ca …

Boron isotopes in blue diamond record seawater-derived fluids in the lower mantle

ME Regier, KV Smit, TB Chalk, T Stachel… - Earth and Planetary …, 2023 - Elsevier
Boron is a quintessential crustal element but its conspicuous presence in diamond–a mantle
mineral–raises questions about potential subduction pathways for boron and other volatiles …

[HTML][HTML] Isotopic fingerprints of recycled eclogite facies sediments in the generation of the Huanglongpu carbonatite, central China

XC Zhao, S Yan, HC Niu, QB Zhang, X Zhao, J Wu… - Ore Geology …, 2021 - Elsevier
Carbonatites are the most important sources of global niobium (Nb) and rare earth element
(REE) resources, particularly the light REEs. The Huanglongpu carbonatite in central China …

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 …

L Tang, T Wagner, T Fusswinkel, ST Zhang, B Xu… - Mineralium …, 2021 - Springer
The Huangshui'an deposit located in East Qinling (China) is an unusual case of a Si-rich
carbonatite hosting economic Mo and minor Pb and REE mineralization. The role of mantle …

Carbon–strontium isotope decoupling in carbonatites from Caotan (Qinling, China): implications for the origin of calcite carbonatite in orogenic settings

CW Wei, C Xu, AR Chakhmouradian… - Journal of …, 2020 - academic.oup.com
Mantle-derived carbonatites emplaced in orogenic belts and some extensional settings are
hypothesized to contain recycled crustal material. However, these carbonatites are typically …

Boron recycling in the mantle: Evidence from a global comparison of ocean island basalts

KJ Walowski, LA Kirstein, JCM De Hoog, T Elliott… - … et Cosmochimica Acta, 2021 - Elsevier
Radiogenic and noble gas isotopes have been integral for demonstrating the existence,
source, and age of (geo) chemical reservoirs in the mantle, yet, the volatile element …

Boron isotopic investigation of the Bayan Obo carbonatite complex: Insights into the source of mantle carbon and hydrothermal alteration

C Kuebler, A Simonetti, W Chen, SS Simonetti - Chemical Geology, 2020 - Elsevier
Earth's largest rare earth element (REE) ore deposit at Bayan Obo, China, is hosted in a
dolomitic marble of Mesoproterozoic age, the genesis of which remains controversial …

[HTML][HTML] Origin of carbonatites and associated silicate rocks revealed by Mg triple-isotope approach

E Amsellem, M Schiller, M Klausen, A Bouyon, V Rojas… - Chemical …, 2023 - Elsevier
Carbonatites are rare carbonate-rich igneous rocks derived from carbon and carbonate-rich
regions of Earth's mantle. Although a number of igneous processes are recognized to have …