Petrogeochemical Zoning of Mesozoic Volcanic Rocks of the Ore Fields of Gold and Polymetallic Deposits of Eastern Transbaikalia

Autor:	B. N. Abramov
Rok vydání:	2019
Předmět:	geography Mineralization (geology) geography.geographical_feature_category 010504 meteorology & atmospheric sciences Volcanic arc Geochemistry Gold mineralization 010502 geochemistry & geophysics 01 natural sciences Volcanic rock Earth and Planetary Sciences (miscellaneous) General Earth and Planetary Sciences Suture (geology) Mesozoic Zoning Geology 0105 earth and related environmental sciences
Zdroj:	Doklady Earth Sciences. 487:778-781
ISSN:	1531-8354 1028-334X
DOI:	10.1134/s1028334x19070018
Popis:	Transverse petrogeochemical zoning in the location of volcaniс rocks of the Shadaronsii (J2‒3) and Mulinskii (J2‒3) groups typical of volcanic arcs has been revealed in Eastern Transbaikalia. Volcanic rocks of the tholeiitic and calc-alkaline series occur in the frontal zone of the volcanic arc and in the suture zone of the Mongol–Okhotsk Suture (MOS); volcanic rocks of the calc-alkaline series occur in the rear zone of the MOS. The volcanic rocks of the frontal and rear parts differ in their petrogeochemical composition, in the degree of iron oxidation, and in the distribution of REEs. These differences are typical of volcanic arcs in the zones of transition from the ocean to the continent. Vulcanoplutonic structures of the frontal zone of MOS produce gold mineralization; the rear zone of MOS produces polymetallic mineralization.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::63d097aba92149f1dd9904a357e688cc https://doi.org/10.1134/s1028334x19070018 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
Nepřihlášeným uživatelům se plný text nezobrazuje	K zobrazení výsledku je třeba se přihlásit.