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Great Lakes–St. Lawrence Lowlands
The Great Lakes-St. Lawrence Lowlands, or simply St. Lawrence Lowlands, is a physiographic region of Eastern Canada that comprises a section of southern Ontario bounded on the north by the Canadian Shield and by three of the Great Lakes — Lake Huron, Lake Erie and Lake Ontario — and extends along the St. Lawrence River to the Strait of Belle Isle and the Atlantic Ocean. The lowlands comprise three sub-regions that were created by intrusions from adjacent physiographic regions — the West Lowland, Central Lowland and East Lowland. The West Lowland includes the Niagara Escarpment, extending from the Niagara River to the Bruce Peninsula and Manitoulin Island. The Central Lowland stretches between the Ottawa River and the St. Lawrence River. The East Lowland includes Anticosti Island, Îles de Mingan, and extends to the Strait of Belle Isle. The St. Lawrence Lowlands is one of the most densely populated, prosperous and productive regions in Canada. Major urban areas include Toro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physiographic Region
Physiographic regions are a means of defining Earth's landforms into independently distinct, mutually exclusive areas, independent of political boundaries. It is based upon the classic three-tiered approach by Nevin M. Fenneman in 1916, that separates landforms into physiographic divisions, physiographic provinces, and physiographic sections. The classification mechanism has become a popular geographical tool in the United States, indicated by the publication of a USGS shapefile that maps the regions of the original work and the National Park Services's use of the terminology to describe the regions in which its parks are located. Originally used in North America, the model became the basis for similar classifications of other continents. Physiography During the early 1900s, the study of regional-scale geomorphology was termed "physiography". Physiography later was considered to be a portmanteau of "''physi''cal" and "ge''ography''", and therefore synonymous with physica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2021 02 26 015 Basses Terres R Ste Anne
1 (one, unit, unity) is a number, numeral, and glyph. It is the first and smallest positive integer of the infinite sequence of natural numbers. This fundamental property has led to its unique uses in other fields, ranging from science to sports, where it commonly denotes the first, leading, or top thing in a group. 1 is the unit of counting or measurement, a determiner for singular nouns, and a gender-neutral pronoun. Historically, the representation of 1 evolved from ancient Sumerian and Babylonian symbols to the modern Arabic numeral. In mathematics, 1 is the multiplicative identity, meaning that any number multiplied by 1 equals the same number. 1 is by convention not considered a prime number. In digital technology, 1 represents the "on" state in binary code, the foundation of computing. Philosophically, 1 symbolizes the ultimate reality or source of existence in various traditions. In mathematics The number 1 is the first natural number after 0. Each natural number, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Appalachian Uplands
The Appalachian Uplands is one of the seven physiographic regions in Canada, distinguished by its topography and geology. The region includes southern Quebec, Gaspésie, New Brunswick, Nova Scotia, Prince Edward Island and the island of Newfoundland. This is the Canadian portion of the Appalachian Mountains. The United States equivalent portion is called the Appalachian Highlands. Physiographic regions, subregions and divisions The Geologic Survey of Canada uses three levels of physiographic classification. The "region" is the highest level, which is equivalent to the "division" level in the United States. In the Appalachian Uplands, there is no second-level, which in Canada is the "subregion." There are 13 tertiary level areas (called divisions in Canada) in the Appalachian Uplands region. Distinctive features Features include Gros Morne National Park and the Newfoundland Highlands in Newfoundland, the Cobequid Mountains, Antigonish Highlands, Cape Breton Highland ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hudson Bay Lowlands
The Hudson Bay Lowlands is a vast wetland located between the Canadian Shield and southern shores of Hudson Bay and James Bay. Most of the area lies within the province of Ontario, with smaller portions reaching into Manitoba and Quebec. Many wide and slow-moving rivers flow through this area toward the saltwater of Hudson Bay: these include the Churchill, Nelson and Hayes in Manitoba, Severn, Fawn, Winisk, Asheweig, Ekwan, Attawapiskat, and Albany in Ontario, and the Harricana, Rupert and Eastmain in Quebec. This is the largest wetland in Canada, and one of the largest in the world.Abraham, K.F. and C.J. Keddy. The Hudson Bay Lowland. Pages 118–148 in L.H. Fraser and P.A. Keddy (eds.). 2005. The World's Largest Wetlands: Ecology and Conservation. Cambridge University Press, Cambridge, UK. 488 p. The region can be subdivided into three bands running roughly northwest to southeast: the Coastal Hudson Bay Lowland (a narrow band along the northern coast), Hudson Bay Lowla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Interior Plains
The Interior Plains is a vast physiographic region that spreads across the Laurentian craton of central North America, extending along the east flank of the Rocky Mountains from the Gulf Coast region to the Arctic Beaufort Sea. In Canada, it encompasses the Canadian Prairies separating the Canadian Rockies from the Canadian Shield, as well as the Boreal Plains and Taiga Plains east of the Mackenzie and Richardson Mountains; while in the United States, it includes the Great Plains of the West/Midwest and the tallgrass prairie region to the south of the Great Lakes extending east to the Appalachian Plateau region. Geologic history A series of tectonic plate collisions in the crust that formed the center of the North American continent laid the groundwork for the modern-day interior plains. Mountain building and erosion around the plains as well as flooding from inland seas provided sediments that make up the rock strata of the interior plains. Proterozoic Eon (2500 to 539 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pacific Cordillera (Canada)
The Pacific Cordillera, also known as the Western Cordillera or simply The Cordillera, is a top-level physiographic region of Canada, referring mainly to the extensive cordillera system in Western and Northwestern Canada that constitutes the northern part of the North American Cordillera. The mountain ranges in this region were covered during the Pleistocene by the Cordilleran Ice Sheet, the extent of which gives perspective on the geographic extent of this region. The cordillera extends from the Alaska's Brooks and Alaska Ranges, southeast through most of the Yukon and British Columbia as well as the southwestern fringe of Northwest Territories and Alberta (bordered by the Mackenzie- Peel/ Liard River basin and the Canadian Prairies in the east), to stretch its margin beyond the Canada–United States border with five extensive lobes reaching into the mountain valleys of Montana and Washington.D. B. Booth. (1987). Timing and processes of deglaciation along the southern m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arctic Lowlands
The Arctic Lands is a physiographic region located in northern Canada. It is one of Canada's seven physiographic regions, which is divided into three divisions—the Innuitian Region, Arctic Coastal Plain, and Arctic Lowlands. Physiographic region Each of the three divisions is distinguished by topography and geology. The other physiographic regions are the Canadian Shield, the Hudson Bay Lowlands, the Interior Plains, the Cordillera, the Great Lakes–St. Lawrence Lowlands, and the Appalachian Uplands. Innuitian region There are two mountain zones in the Innuitian Region. In between lies a vast terrain with plateaus, uplands and lowlands. Arctic Coastal Plain The Arctic Coastal Plain includes its three divisions, Island Coastal Plain, Mackenzie Delta, and the Yukon Coastal Plain, each distinguished by physiographic characteristics. Arctic Lowlands The Lancaster Plateau, Foxe Plain, Boothia Plain, Victoria Lowland, and Shaler Mountains comprise the Arctic Lowlands. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek () 'most' and (; Latinized as ) 'new'. The aridification and cooling trends of the preceding Neogene were continued in the Pleistocene. The climate was strongly variable depending on the glacial cycle, oscillating between cold Glacial period, glacial periods and warmer Interglacial, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ice Sheets
In glaciology, an ice sheet, also known as a continental glacier, is a mass of glacial ice that covers surrounding terrain and is greater than . The only current ice sheets are the Antarctic ice sheet and the Greenland ice sheet. Ice sheets are bigger than ice shelves or alpine glaciers. Masses of ice covering less than 50,000 km2 are termed an ice cap. An ice cap will typically feed a series of glaciers around its periphery. Although the surface is cold, the base of an ice sheet is generally warmer due to geothermal heat. In places, melting occurs and the melt-water lubricates the ice sheet so that it flows more rapidly. This process produces fast-flowing channels in the ice sheet — these are ice streams. Even stable ice sheets are continually in motion as the ice gradually flows outward from the central plateau, which is the tallest point of the ice sheet, and towards the margins. The ice sheet slope is low around the plateau but increases steeply at the ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Surficial Deposit
Superficial deposits (or surficial deposits) refer to geological deposits typically of Quaternary age (less than 2.6 million years old) for the Earth. These geologically recent unconsolidated sediments may include stream channel and floodplain deposits, beach sands, talus gravels and glacial drift and moraine. All pre-Quaternary deposits are referred to as bedrock. Types and history There are several types of superficial deposit, including raised beaches and brickearth. These were formed in periods of climate change during the ice ages. The raised beaches were generally formed during periods of higher sea level, when ice sheets were at a minimum, and the sand and shingle deposits can be seen in many low cliffs. The brickearth is originally a wind-blown dust deposited under extremely cold, dry conditions but much has been re-deposited by flood water and mixed with flints. Superficial deposits were originally recorded only onshore and around the coast where they were laid down b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Quebec City
Quebec City is the capital city of the Provinces and territories of Canada, Canadian province of Quebec. As of July 2021, the city had a population of 549,459, and the Census Metropolitan Area (including surrounding communities) had a population of 839,311. It is the twelfthList of the largest municipalities in Canada by population, -largest city and the seventh-List of census metropolitan areas and agglomerations in Canada, largest metropolitan area in Canada. It is also the List of towns in Quebec, second-largest city in the province, after Montreal. It has a humid continental climate with warm summers coupled with cold and snowy winters. Explorer Samuel de Champlain founded a French settlement here in 1608, and adopted the Algonquin name. Quebec City is one of the List of North American cities by year of foundation, oldest European settlements in North America. The Ramparts of Quebec City, ramparts surrounding Old Quebec () are the only fortified city walls remaining in the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Capital Region (Canada)
The National Capital Region (NCR) (, ), also known as Canada's Capital Region and Ottawa–Gatineau, is an official federal designation encompassing the Canada, Canadian capital of Ottawa, Ontario, the adjacent city of Gatineau, Quebec, and surrounding suburban and Exurb, exurban areas. Despite its designation, the NCR is not a separate political or administrative entity and falls within the provinces of Ontario and Quebec. Defined by the ''National Capital Act'' (1985), the NCR covers an area of , straddling the Ottawa River, which serves as the boundary between Ontario and Quebec. This area is smaller than the Ottawa–Gatineau Census geographic units of Canada#Census metropolitan areas, census metropolitan area (CMA), which spans . Ottawa–Gatineau is the only CMA in Canada that crosses provinces and territories of Canada, provincial boundaries. History The Algonquin people, Algonquins are indigenous to Ottawa-Gatineau. The first European settlement in the region was l ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
