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REE Potential in carbonatite deposits: a case study of Eppawala carbonatite

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dc.contributor.author Batapola, NM
dc.contributor.author Dushyantha, NP
dc.contributor.author Premasiri, HMR
dc.contributor.author Abeysinghe, AMKB
dc.contributor.author Rohitha, LPS
dc.contributor.author Ratnayake, NP
dc.contributor.author Dissanayake, DMDOK
dc.contributor.author Ilankoon, IMSK
dc.contributor.author Dharmaratne, PGR
dc.contributor.editor Dissanayake, DMDOK
dc.contributor.editor Dassanayake, ABN
dc.date.accessioned 2022-02-25T07:19:27Z
dc.date.available 2022-02-25T07:19:27Z
dc.date.issued 2020-12
dc.identifier.citation Batapola, N.M., Dushyantha, N.P., Premasiri, H.M.R., Abeysinghe, A.M.K.B., Rohitha, L.P.S., Ratnayake, N.P., Ratnayake, N.P., Dissanayake, D.M.D.O.K., Ilankoon, I.M.S.K., & Dharmaratne, P.G.R. (2020). REE Potential in carbonatite deposits: a case study of Eppawala carbonatite. In D.M.D.O.K. Dissanayake & A.B.N. Dassanayake (Eds.), Proceedings of International Symposium on Earth Resources Management & Environment 2020 (p. 68). Department of Earth Resources Engineering, University of Moratuwa. en_US
dc.identifier.uri http://dl.lib.uom.lk/handle/123/17088
dc.description.abstract Rare earth elements (REEs) are currently the most strategic elements in the world due to their significance in the diversified technological applications. Currently, a total of 478 million tonnes of REE resources is disseminated across the world, which is dominated by the carbonatite deposits. The most common REE-bearing minerals found in carbonatites are bastnaesite, apatite, monazite, allanite and parisite. In this regard, the Eppawala carbonatite in Sri Lanka could be considered as a potential REE resource. The Eppawala carbonatite occurs in high-grade meta-sedimentary and igneous rocks of the Precambrian Wanni Complex as massive intrusions. In the Eppawala carbonatite, bed rock is mainly composed of calcite (~90%), dolomite (5-9%) and magnesite (accessory carbonate mineral), whereas chloro-fluor-hydroxyapatite, fluorapatite and carbonate-fluorapatite are present in a secondarily developed phosphate-rich regolith. The Eppawala carbonatite is enriched of REEs (~291-1962 ppm) with higher concentrations of LREEs. However, despite these evidences, only a few REE prospecting studies have been carried out in the Eppawala carbonatite. Therefore, detailed REE prospecting studies are recommended to discover the full potential of this prospect, followed by development of suitable REE extraction processes. en_US
dc.language.iso en en_US
dc.publisher Department of Earth Resources Engineering, University of Moratuwa en_US
dc.relation.uri https://uom.lk/sites/default/files/ere/files/ISERME%202020%20Abstracts%20Final%2019.12.2020%2018.13_0.pdf en_US
dc.subject Carbonatites en_US
dc.subject Eppawala carbonatite en_US
dc.subject Rare earth elements (REEs) en_US
dc.subject Rare earth minerals en_US
dc.subject Sri Lanka en_US
dc.title REE Potential in carbonatite deposits: a case study of Eppawala carbonatite en_US
dc.type Conference-Abstract
dc.identifier.faculty Engineering en_US
dc.identifier.department Department of Earth Resources Engineering en_US
dc.identifier.year 2020 en_US
dc.identifier.conference International Symposium on Earth Resources Management & Environment 2020 en_US
dc.identifier.proceeding Proceedings of International Symposium on Earth Resources Management & Environment 2020 en_US
dc.identifier.email dmdok@uom.lk en_US
dc.identifier.email nadee92madhubhashani@gmail.com en_US
dc.identifier.email dharme@uom.lk en_US


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