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Geology Of Canada
The geology of Canada is a subject of regional geology and covers the country of Canada, which is the second-largest country in the world. Geologic units and processes are investigated on a large scale to reach a synthesized picture of the geological development of the country. Geologically, Canada is one of the oldest regions in the world, with more than half of the region consisting of precambrian rocks that have been above sea level since the beginning of the Palaeozoic era. Canada's mineral resources are diverse and extensive. Across the Canadian Shield and in the north there are large iron, nickel, zinc, copper, gold, lead, molybdenum, and uranium reserves. Large diamond concentrations have been recently developed in the Arctic, making Canada one of the world's largest producers. Throughout the Shield there are many mining towns extracting these minerals. The largest, and best known, is Greater Sudbury, Sudbury, Ontario. Sudbury is an exception to the normal process of formin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Alberta
The geology of Alberta encompasses parts of the Canadian Rockies and thick sedimentary sequences, bearing coal, oil and natural gas, atop complex Precambrian crystalline basement rock. Geologic history, stratigraphy & tectonics The Precambrian granite and gneiss crystalline basement rocks beneath Alberta are extremely ancient, dating to the Archean and Proterozoic. The Slave Craton and Southern Alberta craton are the oldest units at more 2.5 billion years old, while younger units from the Proterozoic include the Wopmay orogeny, Great Slave Lake shear zone, Pre-Taltston basement, Taltson magmatic zone, Athabasca polymetamorphic terrane, Red Earth granulite domain, Kimiwan isotopic anomaly, Ksituan magmatic arc, Virgin River shear zone, Central Alberta intrusions and Lacombe domain. In many cases, Proterozoic deformation overprinted older Archean rocks. The Hudsonian Orogeny from 1.9 to 1.6 billion years ago was the last major regional metamorphic event. Paleozoic (539-251 million ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Saskatchewan
The geology of Saskatchewan can be divided into two main geological regions, the Precambrian Canadian Shield and the Phanerozoic Western Canadian Sedimentary Basin. Within the Precambrian shield exists the Athabasca sedimentary basin. Meteorite impacts have altered the natural geological formation processes. The prairies were most recently affected by glacial events in the Quaternary period. Canadian Shield The Canadian Shield, Precambrian shield, makes up the bedrock geology highlighted by rocks and lakes and a boreal forest area. There are transitional areas between boreal and tundra flora. The lower boundary of the Canadian Shield cuts across the province diagonally from the 57th parallel north, latitude 57 degrees in the northwest to 54th parallel north, 54 degrees in the south east. Three orogeny, orogenies formed the Precambrian shield, the Kenoran (Laurentian-Algoman orogeny, Algoman), Trans-Hudson Orogeny, Hudsonian (Penokean) and Grenville Orogeny. Kenorland, K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Quebec
The geology of Quebec involves several different geologic provinces, made up of ancient Precambrian crystalline igneous and metamorphic rock, overlain by younger sedimentary rocks and soils. Most of southern Quebec is dominated by the Grenville Province, while the vast north is divided between the large Superior Province and the Churchill Province to the east, near Labrador. Geologic history, stratigraphy & tectonics The Grenville Province, which dominates southern Quebec, particularly the northern shore of the St. Lawrence formed beginning in the Archean, more than 2.5 billion years ago. Geologists subdivide the Grenville Province into the Allochthon along the river itself and the more northern Parautochthon. The Parautochthon is a band running parallel to the Grenville Front, which varies in width from Labrador to northeastern Georgian Bay on Lake Huron. Parautochthonous rocks are made up composed of ancient Archean and Proterozoic rocks that are highly deformed plutonic a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Prince Edward Island
The geology of Prince Edward Island formed as a result of strike-slip extension in the mountains formed by the Taconic orogeny, Salinic orogeny, and Acadian orogeny, which created an area of subsidence in the Gulf of St. Lawrence. The Maritime Rift resulted in the Magdalen Basin, which is actually a series of small basins surrounding the Gulf. In the Permian coal swamps formed in these basins, resulting in Atlantic Canada's extensive coal deposits, while in some cases, the swamps evaporated were replaced by gypsum evaporite. Up to 12 kilometers of late Paleozoic The Paleozoic ( , , ; or Palaeozoic) Era is the first of three Era (geology), geological eras of the Phanerozoic Eon. Beginning 538.8 million years ago (Ma), it succeeds the Neoproterozoic (the last era of the Proterozoic Eon) and ends 251.9 Ma a ... sediments filled the Maritime Rift as rivers transported sediments in from more distant highlands. The rock visible at the surface on Prince Edward Island is principally ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Ontario
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 shield, as a whole, can further be divided into three sections- these are known as provinces. The northwestern parts of the Shield, located north and west of Sudbury, are known as the Superior province. This is the largest of the three sections, covering 70% of the Canadian Shield portion in Ontario. The Southern province is a narrow region from Sault Ste. Marie to Kirkland Lake. The South central part is dominated by the Grenville Province but flanked by two basins of Phanerozoic materials. Abundant mineral deposits are found here and as a result are mined extensively. Canadian Shield About 61% of Ontario is covered by the Canadian ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
