Инд. авторы:	Izokh A.E., Goryachev N.A., Al'shevskii A.V., Akinin V.V.
Заглавие:	Sokhatiny differentiated gabbro-monzodiorite intrusion from the example of sin-batholitic gabbroids of Yano-Kolymskaya system
Библ. ссылка:	Izokh A.E., Goryachev N.A., Al'shevskii A.V., Akinin V.V. Sokhatiny differentiated gabbro-monzodiorite intrusion from the example of sin-batholitic gabbroids of Yano-Kolymskaya system // Doklady Earth Sciences. - 2012. - Vol.444. - Iss. 1. - P.549-552. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X1205011X; SCOPUS: 2-s2.0-84861840215;
Реферат:	eng: The Sokhatnyi intrusion is an example of a later Mesozoic deferential massif referred to the gabbro-monzodiorite type in Northeastern Russia; according to geological data, it precedes high-alumina granitoids of the Yano-Kolymskaya folded system. It is shown that formation of the layered series of the massif is caused by the crystallized and gravitational fractioning of the high-alumina olivine basalt with increased potassium alkalinity in shallow water media. The boundary facies of the massif are represented by manzogabbroidnorites and monzodiorites. The U-Pb age determinations of zircon (SHRIMP-II) from the taxitite striped biothite gabbro in the lower boundary facies showed 148 ± 1 million years. Thus, taking into account the geological relations and geochronological data on the Sokhatinyi gabbro-monzodiorite, a differential intrusion was formed within the same age period as granite batholites of the Main belt. © 2012 Pleiades Publishing, Ltd.
Ключевые слова:	Russian Federation; uranium-lead dating; Mesozoic; igneous intrusion; geochronology; gabbro; crystallization; batholith; basalt; alkalinity; age determination; Decapoda (Crustacea); Potassium; Olivine; Lead; Geochronology; Shallow waters; Olivine basalts; Mesozoic; Lower boundary; Granitoids; Geological data; Age determination; Alumina;
Издано:	2012
Физ. характеристика:	с.549-552