|
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 Sudbury, Ontario. Sudbury is an exception to the normal process of forming minerals in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Regional Geology
Regional geology is the geological study of large-scale regions. Usually, it encompasses multiple geological disciplines to piece together the history of an area. It is the geologic equivalent of regional geography. The size and the borders of each region are defined by geologically significant boundaries and by the occurrence of geologic processes. Examples of geologically significant boundaries are the interfingering facies change in sedimentary deposits when discussing a sedimentary basin system, or the leading or boundary thrust of an orogen. Africa * Geology of Africa ** Geology of Chad ** Geology of Egypt ** Geology of Madagascar ** Geology of Rwanda ** Geology of Togo Antarctica * Geology of Antarctica Asia * Geology of Asia ** Geology of Armenia ** Geology of Azerbaijan ** Geology of Bangladesh ** Geology of China ***Geology of Fujian ** Geology of Georgia (country) ** Geology of Hong Kong ** Geology of India *** Geology of Sikkim ** Geology of Indonesia ** Geology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of British Columbia
The geology of British Columbia is a function of its location on the leading edge of the North American continent. The mountainous physiography and the diversity of rock types and ages hint at the complex geology, which is still undergoing revision despite a century of exploration and mapping. The country's most prominent geological features are mountain ranges, including the North American Cordillera, which stretches from Southern Mexico to Alaska. Terrane theory Terrane theory was first proposed by Jim Monger of the Geological Survey of Canada and Charlie Rouse in 1971 as an explanation for a set of fusulinid fossils found in central British Columbia. Rather than use facies changes or seaways (which were common explanations at the time), the two geologists proposed that the fossils in question had been part of an assemblage of rocks that had migrated across the Pacific Ocean to their present location. This theory was then developed by Porter Irwin and Davy Jones of the US ... [...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 latitude 57 degrees in the north west to 54 degrees in the south east. Three orogenies formed the Precambrian shield, the Kenoran (Laurentian- Algoman), Hudsonian (Penokean) and Grenville Orogeny. Kenoran (Algoman) orogeny Between 2.2 and 2.5 billion years ago was the Kenoran Orogeny, which ... [...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 surrounded 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 being replaced by gypsum evaporite. Up to 12 kilometers of late Paleozoic The Paleozoic (or Palaeozoic) Era is the earliest of three geologic eras of the Phanerozoic Eon. The name ''Paleozoic'' ( ;) was coined by the British geologist Adam Sedgwick in 1838 by combining the Greek words ''palaiós'' (, "old") and ' ... 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 red ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Ontario
The geology of Ontario consists of the study of the rock formations in the most populated province of Canada. Ontario has some of the oldest rocks on Earth. It is made up of ancient Precambrian igneous and metamorphic rock and overlain by younger sedimentary rocks and soils. About 61% of the province is covered by the Canadian Shield. The shield can further be divided into three sections or provinces. The northwestern parts of the Shield, located roughly north and west of Sudbury, are known as the Superior province is the largest of the three sections, covering about 70% of the 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. World-class mineral deposits can be found here and are mined extensively. Canadian Shield About 61% of Ontario is covered by the Canadian Shield, mostly with Precambrian rock. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Nunavut
The geology of Nunavut began to form nearly three billion years ago in the Archean and the territory preserves some of the world's oldest rock units. Geologic History, Stratigraphy & Tectonics Archean Archean rocks dominate much of the territory's surface and places with overlying rock. Greenstone belts are common together with migmatite gneiss, granodiorite, and quartz monzonite, on the Melville Peninsula and northern Baffin Island, as well as the southwest mainland. Lenses and bands of amphibolite, granitoid and metasedimentary rocks are common in these areas, along with less common ultramafic rocks. Gold and other base metals are widespread as mineralization in siliclastic, felsic, mafic and ironstone rocks of the greenstone belts. The George Lake, Boston and Ulu deposits are all hosted in the Yellowknife Supergroup of the Slave Craton in the west as well as the Lupin gold mine. In the western Churchill Province of south-central Nunavut are the Noomut, Heninga Lake and Meliadi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Northwest Territories
The geology of the Northwest Territories has been mapped in different quadrangles by the Canadian government. The region has some of the oldest rocks in the world and among the oldest in North America, formed from several sections of stable craton continental crust, including the Slave Craton, Rae Craton and Hearne Craton. These rocks form the Archean and Proterozoic Precambrian basement rock of the region and are the subject of extensive research to understand continental crust and tectonic conditions on the early Earth. Geologic History, Stratigraphy & Tectonics The Hearne Craton and Rae Craton are underlain by Archean metasedimentary and metavolcanic rocks. Quartz arenite in the Rae Craton has been interpreted as possible passive margin or rift deposits. 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 rock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Nova Scotia
The Nova Scotia peninsula is a peninsula on the Atlantic Ocean, Atlantic coast of North America. Location The Nova Scotia peninsula is part of the province of Nova Scotia, Canada and is connected to the neighbouring province of New Brunswick through the Isthmus of Chignecto. It fronts the open Atlantic Ocean on the south and southeast, the Gulf of Maine to the west, the Bay of Fundy and its sub-basins to the northwest, the Northumberland Strait to the north, and the Strait of Canso to the east. The narrow and deep waters of the Strait of Canso separate the peninsula from Cape Breton Island, the second largest land mass constituting the province of Nova Scotia. In addition to Cape Breton Island, other much smaller islands are geologically associated with the Nova Scotia peninsula, including Boularderie Island, Brier Island, Long Island (Nova Scotia), Long Island, Pictou Island, Big Tancook Island, Tancook Island and various smaller islands along the Atlantic coast. Geology Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Newfoundland And Labrador
The geology of Newfoundland and Labrador includes basement rocks formed as part of the Grenville Province in the west and Labrador and the Avalonian microcontinent in the east. Extensive tectonic changes, metamorphism and volcanic activity have formed the region throughout Earth history. Newfoundland In contrast to neighboring Labrador, the island of Newfoundland is largely underlain by younger rocks. The Churchill, Nain, Superior and Grenville Province present in Labrador were all small continents or pieces of continental lithosphere that joined to form sections of the proto-North American continent Laurentia and the broad stable region known as the Canadian Shield. By the end of the Precambrian in the Neoproterozoic, continental crust which had come into existence in the Archean nearly 2.5 billion years had already experienced up to eight supercontinent cycles. In the late Precambrian and Paleozoic, Avalonia (named after the Avalon Peninsula in Newfoundland) formed as a volcanic i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of New Brunswick
Paleozoic New Brunswick * Forest Hills Formation * Hanford Brook Formation * St. John Group * Wades Lane Formation * Avalonia * Northern Appalachians Seismic Zone * Bathurst Mining Camp * Mount Carleton Provincial Park * Coastal Volcanic Belt * Fundy Basin * Chignecto Basin * Mount Pleasant Caldera * Sugarloaf Mountain * Back Bay Formation * Limestone Point Formation * Petit Rocher Formation * Campbellton Formation * Dalhousie Group * La Garde Formation * Leda Clay Formation * Maritime Plain The Maritime Plain is a physiographic province of the larger Appalachian division. The Maritime Plain runs around the coast of New Brunswick and Nova Scotia from the south shore of Chaleur Bay and includes Prince Edward Island and the Magdalen Isl ... Mesozoic New Brunswick *stub References Bibliography * * * * * * * * * * {{Canada topic, Geology of History of New Brunswick Natural history of New Brunswick Appalachian Mountains Ordovician Canada Cenozoic Canad ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Manitoba
In central Manitoba lies the Flin Flon greenstone belt, which is one of the largest Paleoproterozoic volcanic-hosted massive sulphide districts in the world, containing 27 copper-zinc-(gold) deposits from which more than 183 million tonnes of sulphide have been mined. Ashville Formation The Ashville Formation is a geological formation in Saskatchewan and Manitoba whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, North America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 574-588. . It is geochronologically equivalent to the Lower Colorado Group and the Viking Formation in central Alberta Central Alberta is a region located in the Canadian province of Alberta. Central Alberta is the most densely populated rural area in the pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
