Английская Википедия:Abitibi greenstone belt

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Версия от 01:01, 28 декабря 2023; EducationBot (обсуждение | вклад) (Новая страница: «{{Английская Википедия/Панель перехода}} {{Short description|Gtenstone belt that spans across the Ontario–Quebec border in Canada}} The '''Abitibi greenstone belt''' is a 2,800-to-2,600-million-year-old greenstone belt that spans across the OntarioQuebec border in Canada.<ref name="Cater">{{cite journal|last1=Cater|first1=D.F.|title=Macassa Mine Geology|journal=Society of Economic Geologists|date=1991|vol...»)
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Шаблон:Short description The Abitibi greenstone belt is a 2,800-to-2,600-million-year-old greenstone belt that spans across the OntarioQuebec border in Canada.[1] It is mostly made of volcanic rocks, but also includes ultramafic rocks, mafic intrusions, granitoid rocks, and early and middle Precambrian sediments.[2]

Geographical extent

The Abitibi greenstone belt is one of the world's largest Archean greenstone belts. It represents a series of subterranes that exhibit similar geological, geochemical, and isotopical signatures similar to those formed during the evolution of paired active-arc-back-arc systems. The huge 2,707-to-2,696-million-year-old Blake River Megacaldera Complex is within the belt.

See also

References

Шаблон:Reflist

Шаблон:Greenstone belts Шаблон:Authority control


Шаблон:Ontario-geo-stub Шаблон:Quebec-geo-stub