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Organic matter plays an important role in the transport and precipitation of germanium (Ge) in coal-hosted Ge deposits. In this paper, Ge isotopes of coal samples and their combustion products were analyzed in order to investigate the potential use of Ge isotopes as tracers of Ge sources and enrichment mechanisms in coal. Germanium isotopic composition of various samples (mainly Ge-rich lignite) from...
The Lincang germanium deposit, Yunnan, SW China, contains at least 1000 tonnes of Ge at an average grade of ~850 ppm Ge, and is one of the largest Ge deposits in the world. The deposit is hosted within coal seams of the Miocene Bangmai Formation, deposited on top of a Ge-rich granite batholith. The Bangmai Formation is divided into eight units among which three are coal-bearing. The Ge-bearing coal...
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