Rare metals in coal deposits have attracted much attention in recent years because of their
potential economic significance. This paper reports the abundance and enrichment origin of …

Volcanic ashes in coal and coal-bearing sequences typically occur as persistent bands
within coal seams (generally as tonsteins, but in a few cases as bentonites, K-bentonites, or …

Abstract The Qinshui Basin, the largest reservoir of commercial coalbed methane in China,
has attracted much attention and several studies have focused on the mineralogy and …

本文简要阐明大火成岩省和地幔柱研究的关键科学问题及研究方法, 然后对新世纪以来我国中晚
二叠纪峨眉山大火成岩省和早二叠纪塔里木大火成岩省的研究进展进行了回顾和总结 …

Abstract The late Permian Emeishan large igneous province (ELIP) covers∼ 0.3× 10 6 km 2
of the western margin of the Yangtze Block and Tibetan Plateau with displaced, correlative …

The petrological, geochemical, and mineralogical compositions of the coal-hosted Jurassic
uranium ore deposit in the Yili Basin of Xinjiang province, northwestern China, were …

The age of the Emeishan lavas in SW China remains poorly constrained because the
extrusive rocks are (1) thermally overprinted and so represent an open system unsuitable for …

Radiogenic isotopic dating using different (mainly micro-beam analyses) techniques of rocks
from the Emeishan large igneous province (ELIP) has yielded a range of ages from the …

Metalliferous coal deposits, mainly hosting Zr (Hf)–Nb (Ta)–REE and U (Mo, Se)–REE ores,
in East Asia (Primorye of Russia and South China) primarily result from the evolution of …

Altered volcanic ash with highly-elevated concentrations of Nb (Ta), Zr (Hf), Ga, and rare
earth elements and yttrium (REY) is an untraditional type of critical metal deposit that has …