REE geochemical characteristics of tungsten minerals as a discriminant indicator of genetic types of ore deposits

Autor:	Gao Sideng, He Qiguang, Liu Yimao, Zhang Yuxue
Rok vydání:	1990
Předmět:	Wolframite Rare-earth element Geochemistry chemistry.chemical_element Mineralogy Crust engineering.material Tungsten Quartz-porphyry chemistry.chemical_compound chemistry Geochemistry and Petrology Scheelite engineering Prospecting Chemical composition Geology
Zdroj:	Chinese Journal of Geochemistry. 9:319-329
ISSN:	1993-0364 1000-9426
DOI:	10.1007/bf02869126
Popis:	Tungsten minerals (scheelite and wolframite) from two genetic types of granitoids show significant differences in REE distribution, probably due to different material sources and origins. Tungsten minerals in granite porphyry of the crust-mantle source are relatively high in ΣREE(1884ppm on average). Σ Ce is rich relative to Σ Y and Σ Ce/ΣY is relatively high (>1). The chondrite-normalized REE distribution patterns are characterized by a group of rightward-inclined curves. Tungsten minerals in quartz veins intruding the granites of crust origin have lower ΣREE (335 ppm on average). ΣY is rich relative to ΣCe and ΣCe/ΣY is relatively low (
Databáze:	OpenAIRE
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