학술논문
Fractionation of rare earth elements by differentiation of granitic magma in southern Myanmar / ミャンマー南部における花崗岩質マグマの分化による希土類元素の分別
Document Type
Journal Article
Author
Source
Abstracts for Annual Meeting of Japan Association of Mineralogical Sciences. 2016, :197
Subject
Language
Japanese
Abstract
Calc-alkaline granites in southern Myanmar were investigated to identify the minerals controlling fractionation between light and heavy REE (LREE and HREE) during magmatic differentiation. The granites with < 74 % SiO2 contain titanite, allanite, apatite and zircon. The more fractionated granites (> 74 % SiO2) with very little titanite and allanite are characterized by enrichment of HREE and the occurrence of secondary minerals including bastnäsite-(Ce), synchysite-(Y) and xenotime-(Y).