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Article: FEASIBILITY OF VISIBLE SHORT-WAVE INFRARED REFLECTANCE SPECTROSCOPY TO CHARACTERIZE REGOLITH-HOSTED RARE EARTH ELEMENT MINERALIZATION

TitleFEASIBILITY OF VISIBLE SHORT-WAVE INFRARED REFLECTANCE SPECTROSCOPY TO CHARACTERIZE REGOLITH-HOSTED RARE EARTH ELEMENT MINERALIZATION
Authors
Issue Date2022
Citation
Economic Geology, 2022, v. 117, n. 2, p. 495-508 How to Cite?
AbstractRegolith-hosted rare earth element (REE) deposits predominate global resources of heavy REEs. Regoliths are underlain by various types of igneous rocks and do not always host economically valuable deposits. Thus a feasible and convenient method is desired to identify REE mineralization in a particular regolith. This study presents a detailed visible short-wave infrared reflectance (VSWIR) spectroscopic study of the Renju regolithhosted REE deposit, South China, to provide diagnostic parameters for targeting REE orebodies in regoliths. The results show that the spectral parameters, M794-2nd and M800-2nd, derived from the VSWIR absorption of Nd3+ at approximately 800 nm, can be effectively used to estimate the total REE concentrations in regolith profiles. M1396-2nd/M1910-2nd ratios can serve as proxies to evaluate weathering intensities in a regolith. Abrupt changes of specific spectral features related to mineral abundances, chemical compositions, and weathering intensities can be correlated with variations of protolith that formed a regolith. These VSWIR proxies are robust and can be used for exploration of regolith-hosted REE deposits.
Persistent Identifierhttp://hdl.handle.net/10722/316646
ISSN
2023 Impact Factor: 5.5
2023 SCImago Journal Rankings: 2.372
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorTan, Wei-
dc.contributor.authorQin, Xiaorong-
dc.contributor.authorLiu, Jiacheng-
dc.contributor.authorZhou, Mei Fu-
dc.contributor.authorHe, Hongping-
dc.contributor.authorWang, Christina Yan-
dc.contributor.authorHuang, Jian-
dc.contributor.authorZhu, Jianxi-
dc.contributor.authorYao, Yuzeng-
dc.contributor.authorCudahy, Thomas-
dc.date.accessioned2022-09-14T11:40:57Z-
dc.date.available2022-09-14T11:40:57Z-
dc.date.issued2022-
dc.identifier.citationEconomic Geology, 2022, v. 117, n. 2, p. 495-508-
dc.identifier.issn0361-0128-
dc.identifier.urihttp://hdl.handle.net/10722/316646-
dc.description.abstractRegolith-hosted rare earth element (REE) deposits predominate global resources of heavy REEs. Regoliths are underlain by various types of igneous rocks and do not always host economically valuable deposits. Thus a feasible and convenient method is desired to identify REE mineralization in a particular regolith. This study presents a detailed visible short-wave infrared reflectance (VSWIR) spectroscopic study of the Renju regolithhosted REE deposit, South China, to provide diagnostic parameters for targeting REE orebodies in regoliths. The results show that the spectral parameters, M794-2nd and M800-2nd, derived from the VSWIR absorption of Nd3+ at approximately 800 nm, can be effectively used to estimate the total REE concentrations in regolith profiles. M1396-2nd/M1910-2nd ratios can serve as proxies to evaluate weathering intensities in a regolith. Abrupt changes of specific spectral features related to mineral abundances, chemical compositions, and weathering intensities can be correlated with variations of protolith that formed a regolith. These VSWIR proxies are robust and can be used for exploration of regolith-hosted REE deposits.-
dc.languageeng-
dc.relation.ispartofEconomic Geology-
dc.titleFEASIBILITY OF VISIBLE SHORT-WAVE INFRARED REFLECTANCE SPECTROSCOPY TO CHARACTERIZE REGOLITH-HOSTED RARE EARTH ELEMENT MINERALIZATION-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.5382/ECONGEO.4877-
dc.identifier.scopuseid_2-s2.0-85123554852-
dc.identifier.volume117-
dc.identifier.issue2-
dc.identifier.spage495-
dc.identifier.epage508-
dc.identifier.eissn1554-0774-
dc.identifier.isiWOS:000743255600001-

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