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Hope Bay greenstone belt (Nunavut) Hunt River greenstone belt (Newfoundland and Labrador) Nuvvuagittuq Greenstone Belt (Quebec) Red Lake greenstone belt (Ontario) Rice Lake greenstone belt (Manitoba) Swayze greenstone belt (Ontario) Temagami Greenstone Belt (Ontario) Yellowknife greenstone belt (Northwest Territories)
Download QR code; Print/export Download as PDF; Printable version; In other projects ... List of greenstone belts; A. Abitibi greenstone belt; B. Barberton Greenstone ...
The Abitibi greenstone belt is a 2,800-to-2,600-million-year-old greenstone belt that spans across the Ontario–Quebec 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.
Abitibi greenstone belt (Quebec/Ontario, Canada) Bird River greenstone belt (Manitoba, Canada) Elmers Rock greenstone belt (Wyoming, USA) Flin Flon greenstone belt (Manitoba/Saskatchewan, Canada) Hope Bay greenstone belt (in the western portion of Kivalliq Region, Nunavut, Canada) Hunt River greenstone belt (Newfoundland and Labrador, Canada)
The 2,677 million year old Abitibi greenstone belt in Ontario and Quebec is one of the largest Archean greenstone belts on Earth and one of the youngest parts of the Superior craton which sequentially forms part of the Canadian Shield. [6] Ontario's metallic mineral wealth such as gold, copper and zinc comes from the Abitibi/Wawa subprovince. [5]
Around the world, greenstone belts are a hallmark of ancient Precambrian rocks. The Ennadai-Rankin greenstone belt is the second largest in Canada and displays felsic volcanic and volcaniclastic rocks, as well as mafic rocks reaching greenschist grade on the sequence of metamorphic facies.
Eoarchean geology is the study of the oldest preserved crustal fragments of Earth during the Eoarchean era from 4.031 to 3.6 billion years ago. Major well-preserved rock units dated to this era are known from three localities, the Isua Greenstone Belt in Southwest Greenland, the Acasta Gneiss in the Slave Craton in Canada, and the Nuvvuagittuq Greenstone Belt in the eastern coast of Hudson Bay ...
The Distribution of Ancient Volcanic Rocks along the Eastern Border of North America. The Archean Red Lake greenstone belt in Northwestern Ontario consists of basaltic and komatiitic volcanics ranging in age from 2,925 to 2,940 million years old and younger rhyolite-andesite volcanics ranging in age from 2,730 to 2,750 million years old. [3]