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The geology of Ontario is the study of rock formations in the most populated province in Canada- it is home to some of the oldest rock on Earth. The geology in Ontario consists of ancient Precambrian igneous and metamorphic rock which sits under younger, sedimentary rocks and soils. Around 61% of Ontario is covered by the Canadian Shield. The ...
MapA Map of Zin Bay region, Precambrian era - note Zin Bay is located in present day terms north of Athabasca Lake within Saskatchewan. Note also the large Tazin Lake comprising much of the area north of the present day treeline. The map shows the Martin Formation which shows rocks dating 1.63 billion years ago.
There are many mining towns extracting these minerals. The largest, and one of the best known, is Sudbury, Ontario. Sudbury is an exception to the normal process of forming minerals in the shield since the Sudbury Basin is an ancient meteorite impact crater. Ejecta from the meteorite impact was found in the Rove Formation in May 2007.
Saskatchewan: Northwest Territories border (60th parallel) North Dakota border east of Northgate: Manitoba border, south of Gainsborough, Saskatchewan: Alberta border Yukon: Shore of Beaufort Sea along 141st Meridian British Columbia border YT-BC-NT tripoint Boundary Peak 187 (60°18′22.929″N, 141°00′7.128″W). Westernmost point of land ...
Gow is an impact crater in Saskatchewan, Canada.It is 5 km (3 mi) in diameter and the age is estimated to be less than 250 million years (Triassic or later).The crater contains a classic crater lake (Gow Lake [1]) with an island (Calder Island) formed by the central uplift.
Today, the First Nations people of Ontario call the carvings Kinomagewapkong, meaning "the rocks that teach" or "the Teaching Rocks". Originally two to three inches deep the 1200 carvings were made using gneiss hammers to incise human figures, animals, and a dominant figure whose head apparently represents the sun, onto the soft, gently sloping ...
Small areas of hornblende and/or biotite migmatite are found near the lake. The light to dark gray outcrops are usually rounded and weathered. [15] Dykes, lenses, and veins of pegmatite are abundant in the meta-sedimentary rocks and granitic bodies between the north of Attitti Lake and McArthur Lake. [16]
The Huronian Supergroup is a Proterozoic assemblage of geologic groups of the Superior Craton of the Canadian Shield in Ontario and Quebec.It extends from west of the city of Sault Ste. Marie in the west to the Ontario-Quebec border to the east and is part of the Southern Geologic Province.