Setting of the Formation of Paleozoic Picrite Basalt Complexes in the West Siberian Plate Basement

Autor:	Vladimir A Simonov, V.A. Kontorovich, S.V. Saraev, S.I. Stupakov, Yu.F. Filippov, A.V. Kotlyarov
Rok vydání:	2019
Předmět:	Basalt 010504 meteorology & atmospheric sciences Geochemistry 010502 geochemistry & geophysics Picrite basalt 01 natural sciences Igneous rock Basement (geology) Petrochemistry Passive margin Magmatism Earth and Planetary Sciences (miscellaneous) Intraplate earthquake General Earth and Planetary Sciences Geology 0105 earth and related environmental sciences
Zdroj:	Doklady Earth Sciences. 486:613-616
ISSN:	1531-8354 1028-334X
Popis:	40Ar/39Ar analysis showed a simultaneous (at about 490 Ma) formation of the Paleozoic picrite and basalt complexes of the West Siberian Plate basement. The petrochemistry, trace and REE geochemistry, and composition of clinopyroxene indicate the formation of the picrite of well no. 11 (Chkalov area) as a result of intraplate magmatism of the OIB type. Calculations based on the compositions of clinopyroxene allowed crystallization of minerals of porphyric picrite at 1215–1275°C and 4.5–8 kbar. In general, it has been found that the picrite basalt complexes considered were formed from enriched igneous plume systems under intraplate conditions near the active margin of the ancient ocean.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7529ca2870c887e41e9c3e56f19d96df https://doi.org/10.1134/s1028334x19060217 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.