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Portland Basin (geology)
The Portland Basin is a roughly topographic and structural depression in the central Puget- Willamette Lowland. The Portland Basin is approximately long and wide, with its long axis oriented northwest. Studies indicate that as much as {{convert, 1800, ft, m of late Miocene and younger sediments have accumulated in the deepest part of the basin near Vancouver Vancouver ( ) is a major city in western Canada, located in the Lower Mainland region of British Columbia. As the List of cities in British Columbia, most populous city in the province, the 2021 Canadian census recorded 662,248 people in the .... Most of the basin-fill material was carried in from the east by the Columbia River.Liberty, L.M., Hemphill-Haley, M.A., and Madin, I.P., 2003, The Portland Hills Fault –uncovering a hidden fault in Portland, Oregon using high-resolution geophysical methods, Tectonphysics, v.368. p. 89-103 References Structural basins of the United States Geology of Oregon Geology of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ashton-under-Lyne
Ashton-under-Lyne is a market town in Tameside, Greater Manchester, England. The population was 45,198 at the 2011 census. Historically in Lancashire, it is on the north bank of the River Tame, in the foothills of the Pennines, east of Manchester. Evidence of Stone Age, Bronze Age, and Viking activity has been discovered in Ashton-under-Lyne. The "Ashton" part of the town's name probably dates from the Anglo-Saxon period, and derives from Old English meaning "settlement by ash trees". The origin of the "under-Lyne" suffix is less clear; it possibly derives from the Brittonic-originating word ''lemo'' meaning elm or from Ashton's proximity to the Pennines. In the Middle Ages, Ashton-under-Lyne was a parish and township and Ashton Old Hall was held by the de Asshetons, lords of the manor. Granted a Royal Charter in 1414, the manor spanned a rural area consisting of marshland, moorland, and a number of villages and hamlets. Until the introduction of the cotton trade in 1769, Ash ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greater Manchester
Greater Manchester is a metropolitan county and combined authority, combined authority area in North West England, with a population of 2.8 million; comprising ten metropolitan boroughs: City of Manchester, Manchester, City of Salford, Salford, Metropolitan Borough of Bolton, Bolton, Metropolitan Borough of Bury, Bury, Metropolitan Borough of Oldham, Oldham, Metropolitan Borough of Rochdale, Rochdale, Metropolitan Borough of Stockport, Stockport, Tameside, Trafford and Metropolitan Borough of Wigan, Wigan. The county was created on 1 April 1974, as a result of the Local Government Act 1972, and designated a functional Manchester City Region, city region on 1 April 2011. Greater Manchester is formed of parts of the Historic counties of England, historic counties of Cheshire, Lancashire and the West Riding of Yorkshire. Greater Manchester spans , which roughly covers the territory of the Greater Manchester Built-up Area, the List of urban areas in the United Kingdom, second most ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puget Lowland
{{Geodis ...
Puget may refer to: *Puget (surname) *Puget, Vaucluse, a commune in France *Puget, Washington, a community in the United States See also *Puget Creek *Puget Island *Puget Sound *Puget-Ville Puget-Ville (; oc, Puget Vila) is a commune in the Var department in the Provence-Alpes-Côte d'Azur region in southeastern France. Administration Max Bastide was elected in 2001 and re-elected in 2008. In 2014, Catherine Altare was elected. S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Willamette Lowland
Willamette ( ), from the Clackamas language of the Columbia River, Oregon, can refer to: A toponym of the U.S. state of Oregon: * Willamette River, a tributary of the Columbia River in northwestern Oregon * Willamette Valley, a region in northwest Oregon that surrounds the Willamette River ** Willamette Valley AVA, Oregon wine region ** Willamette Valley (ecoregion), an area that includes the Willamette Valley and adjacent parts of Washington * Willamette, Oregon, an unincorporated community that is now part of West Linn * Willamette National Forest, a National Forest in western Oregon * Willamette Falls, a natural waterfall on the Willamette River between Oregon City and West Linn * Willamette Meteorite, a meteorite that was discovered in Oregon * Willamette Pass Resort, a ski area in the Cascade Range of Oregon * Willamette Stone, survey marker in Oregon * Willamette Cattle Company, a company formed in Oregon in 1837 to buy cattle in California * Willamette University, a priv ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miocene
The Miocene ( ) is the first geological epoch of the Neogene Period and extends from about (Ma). The Miocene was named by Scottish geologist Charles Lyell; the name comes from the Greek words (', "less") and (', "new") and means "less recent" because it has 18% fewer modern marine invertebrates than the Pliocene has. The Miocene is preceded by the Oligocene and is followed by the Pliocene. As Earth went from the Oligocene through the Miocene and into the Pliocene, the climate slowly cooled towards a series of ice ages. The Miocene boundaries are not marked by a single distinct global event but consist rather of regionally defined boundaries between the warmer Oligocene and the cooler Pliocene Epoch. During the Early Miocene, the Arabian Peninsula collided with Eurasia, severing the connection between the Mediterranean and Indian Ocean, and allowing a faunal interchange to occur between Eurasia and Africa, including the dispersal of proboscideans into Eurasia. During the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vancouver, Washington
Vancouver is a city on the north bank of the Columbia River in the U.S. state of Washington, located in Clark County. Incorporated in 1857, Vancouver has a population of 190,915 as of the 2020 census, making it the fourth-largest city in Washington state. Vancouver is the county seat of Clark County and forms part of the Portland-Vancouver metropolitan area, the 25th-largest metropolitan area in the United States. Originally established in 1825 around Fort Vancouver, a fur-trading outpost, the city is located on the Washington–Oregon border along the Columbia River, directly north of Portland, and is considered a suburb of the city along with its surrounding areas. History The Vancouver area was inhabited by several Native American tribes, most recently the Chinook and Klickitat nations, with permanent settlements of timber longhouses. The Chinookan and Klickitat names for the area were reportedly ''Skit-so-to-ho'' and ''Ala-si-kas,'' respectively, meaning "land of the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Columbia River
The Columbia River (Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, Canada. It flows northwest and then south into the U.S. state of Washington, then turns west to form most of the border between Washington and the state of Oregon before emptying into the Pacific Ocean. The river is long, and its largest tributary is the Snake River. Its drainage basin is roughly the size of France and extends into seven US states and a Canadian province. The fourth-largest river in the United States by volume, the Columbia has the greatest flow of any North American river entering the Pacific. The Columbia has the 36th greatest discharge of any river in the world. The Columbia and its tributaries have been central to the region's culture and economy for thousands of years. They have been used for transportation since a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Structural Basins Of The United States
A structure is an arrangement and organization of interrelated elements in a material object or system, or the object or system so organized. Material structures include man-made objects such as buildings and machines and natural objects such as organism, biological organisms, minerals and chemical substance, chemicals. Abstract structures include data structures in computer science and musical form. Types of structure include a hierarchy (a cascade of one-to-many relationships), a Complex network, network featuring many-to-many Link (geometry), links, or a lattice (order), lattice featuring connections between components that are neighbors in space. Load-bearing Buildings, aircraft, skeletons, Ant colony, anthills, beaver dams, bridges and salt domes are all examples of Structural load, load-bearing structures. The results of construction are divided into buildings and nonbuilding structure, non-building structures, and make up the infrastructure of a human society. Built str ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geology Of Oregon
Geology () is a branch of natural science concerned with Earth and other astronomical objects, the features or rocks of which it is composed, and the processes by which they change over time. Modern geology significantly overlaps all other Earth sciences, including hydrology, and so is treated as one major aspect of integrated Earth system science and planetary science. Geology describes the structure of the Earth on and beneath its surface, and the processes that have shaped that structure. It also provides tools to determine the relative and absolute ages of rocks found in a given location, and also to describe the histories of those rocks. By combining these tools, geologists are able to chronicle the geological history of the Earth as a whole, and also to demonstrate the age of the Earth. Geology provides the primary evidence for plate tectonics, the evolutionary history of life, and the Earth's past climates. Geologists broadly study the properties and processes of E ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
