Cathodoluminescence response of barite at room and liquid nitrogen temperatures

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Abstract

Rare earth element (REE) enrichment in the Elk Creek carbonatite, Nebraska USA, is comparable to ore grade enrichment in carbonatite-hosted REE deposits[1]. Petrographic examination of textures documents a complex history of crystallization, brecciation, recrystallization, oxidation, and near surface alteration. Barite (BaSO4) is present in most units, including REE-enriched zones, such that it may provide important constraints on processes that lead to ore-grade enrichment of carbonatites. Samples containing barite from different temperature regimes within the deposit were chosen to study the cathodoluminescence (CL) response at room and liquid nitrogen (LN) temperatures to help determine the processes by which REEs were enriched within the deposit and possible contributions of REE to the CL response.

Publication type Conference Paper
Publication Subtype Conference Paper
Title Cathodoluminescence response of barite at room and liquid nitrogen temperatures
DOI 10.1017/S1431927622003178
Volume 28
Issue S1
Year Published 2022
Language English
Publisher Cambridge University Press
Contributing office(s) Geology, Geophysics, and Geochemistry Science Center
Description 3 p.
First page 668
Last page 670
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