ñîñòàâå ìàðóí-êåóñêîãî ýêëîãèò-ãíåéñîâîãî êîìïëåêñà íà Ïîëÿðíîì Óðàëå ïî ãåîëîãè÷åñêèì è ïåòðîãåîõèìè÷åñêèì äàííûì âïåðâûå âûäåëåíû äâå ñåðèè ïåðâè÷íî-ìàãìàòè÷åñêèõ ïîðîä, îáðàçîâàâøèåñÿ â ðàçëè÷íûõ ãåîäèíàìè÷åñêèõ îáñòàíîâêàõ. Îäíà èç íèõ ìåòàâóëêàíîãåííàÿ -ïîëîñ÷àòûå ýêëîãèòû, àìôèáîëèòû è ïëàãèîãíåéñû, âòîðàÿ ìåòàïëóòîíè÷åñêàÿ -ìàññèâíûå àïîãàááðîâûå ýêëîãèòû è ìåòàïåðèäîòèòû.Ìåòàâóëêàíèòû èìåþò ïðèçíàêè îáðàçîâàíèÿ â îñòðîâîäóaeíûõ îáñòàíîâêàõ. Ìåòàìîðôèçîâàííûå ïëóòîíè÷åñêèå ïîðîäû ìà-ôèò-óëüòðàìàôèòîâîãî ñîñòàâà ïðåäñòàâëÿþò ñîáîé ñàìîñòîÿòåëüíûé ìàòàèíòðóçèâíûé êîìïëåêñ. Ãåîõèìè÷åñêèå äàííûå óêàçûâà-þò íà ôîðìèðîâàíèå ýòèõ ïîðîä â íàäñóáäóêöèîííîé îáñòàíîâêå, âîçìîaeíî ñ êîíòàìèíàöèåé êîíòèíåíòàëüíîãî âåùåñòâà (ïîâûøåí-íûå ñîäåðaeàíèÿ Ba, Sr è Rb).Êëþ÷åâûå ñëîâà: Ïîëÿðíûé Óðàë, ýêëîãèòû, ãåîäèíàìè÷åñêèå îáñòàíîâêè. According to the geological and petrogeochemical data, two series of primary magmatic rocks formed in different geodynamic settings were distinguished in the Marun-keu eclogite-gneiss complex for the first time. One of them is metavolcanogenic consisting of banded eclogites, amphibolites, and plagiogneiss; the other -metaplutonic, composed of massive apogabbroic eclogites and metaperidotites. TWO SERIES OF PRIMARY MAGMATIC ROCKS IN THE MARUNKEU ECLOGITE-GNEISS COMPLEX, THE POLAR URALSMetavolcanics show traces of their formation in island arc conditions. Metamorphosed plutonic rocks of the mafic-ultramafic composition make up an independent metaintrusive complex. Geochemical data indicate the formation of these rocks in suprasubduction environments, possibly with the contamination of continental material (higher contents of Ba, Sr, and Rb).
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.