New U–Pb Ages of the Volcano–Plutonic Association of the Oloi Belt (Alazeya–Oloi Folded System, Western Chukotka)

Autor:	T. V. Kara, S. M. Katkov, Elena Belousova, Marina Luchitskaya
Rok vydání:	2019
Předmět:	geography geography.geographical_feature_category 010504 meteorology & atmospheric sciences Range (biology) Volcanic belt Geochemistry Massif 010502 geochemistry & geophysics 01 natural sciences Cretaceous Volcano Earth and Planetary Sciences (miscellaneous) General Earth and Planetary Sciences Geology 0105 earth and related environmental sciences
Zdroj:	Doklady Earth Sciences. 487:911-916
ISSN:	1531-8354 1028-334X
DOI:	10.1134/s1028334x19080269
Popis:	The Egdygkych hypabyssal rocks of the Nichan and Vuknei massifs, as well as the host volcanites and tuffs of the Oloi volcanic belt of the Alazeya–Oloi folded system have been dated by U–Pb (SIMS and LA–ICP–MS). The obtained ages of the Egdygkych complex correspond to the Early Cretaceous (Berriasian–Valanginian), while those of their host rocks range from the Late Jurassic (Tithonian) to the beginning of the Early Cretaceous (Berriasian). These new U–Pb geochronological data confidently suggest a unity of the volcanic–plutonic association of the Late Jurassic (Tithonian)–Early Cretaceous (Berriasian–Valanginian) age of the Oloi volcanic belt. The data obtained refine the age range of Au–Mo–Cu ores confined to the contacts between the Egdygkych complex rocks and host volcano-sedimentary deposits or contacts of individual intrusive phases within the complex.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::dbbc3759fd3c6a9466ac57c9dba6d9e5 https://doi.org/10.1134/s1028334x19080269 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.