Age and duration of the formation of the Billyakh tectonic melange zone, Anabar shield

Autor:	S. Z. Yakovleva, A. B. Kotov, E. B. Sal’nikova, S. D. Velikoslavinskii, V. P. Kovach, A. A. Kravchenko, V. N. Dobretsov, A. P. Smelov, V. I. Beryozkin
Rok vydání:	2012
Předmět:	Geochemistry and Petrology Proterozoic Shield Continental crust Archean Mélange Petrology Geology Terrane
Zdroj:	Petrology. 20:286-300
ISSN:	1556-2085 0869-5911
DOI:	10.1134/s0869591112030058
Popis:	U-Pb geochronological and Sm-Nd isotopic-geochemical studies of granitoids of different structural-age position established that the collision between the Daldyn and Khapchan terranes of the Anabar shield and formation of the Billyakh tectonic melange zone occurred between 1971 ± 4-1983 ± 3 Ma, while structural-metamorphic transformations corresponding to this collisional event lasted for 5–19 Ma. It was shown that the granitoids of different structural-age position of the Billyakh zone were mainly derived from the Early Proterozoic crustal rocks with insignificant input of the Archean continental crust.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7e8be27105b8532a04d807ecd63ffa31 https://doi.org/10.1134/s0869591112030058 Zobrazit plný text záznamu Plný text ve formátu PDF