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What are the intermontane west?

Updated: 12/23/2022
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Q: What are the intermontane west?
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What is intermontane zone?

The Intermontane Plate was an ancient oceanic tectonic plate that lay on the west coast of North America about 195 million years ago. The Intermontane Plate had a chain of volcanic islands called the Intermontane Islands. The Intermontane Islands had been accumulating as a volcanic chain in the Pacific Ocean since Triassic time, beginning around 245 million years ago. The volcanism records yet another subduction zone. Beneath the far edge of the Intermontane microplate, another plate called the Insular Plate was sinking. This arrangement with two parallel subduction zones is unusual. The modern Philippine Islands are located on the Philippine Mobile Belt, one of the few places on Earth where twin subduction zones exist today. Geologists call the ocean between the Intermontane islands and North America the Slide Mountain Ocean. The name comes from the Slide Mountain Terrane, a region made of rocks from the floor of the ancient ocean.Collision of the Intermontane IslandsOver early Jurassic time, the Intermontane Islands and the Pacific Northwest drew closer together as the continent moved west and the Intermontane Microplate subducted. On the continent, subduction supported a new volcanic arc that again sent intruding granite-type rocks into the ancient continental sediments. Eventually, about 180 million years ago in the middle Jurassic, the last of the microplate subducted, and the Intermontane Islands collided with the Pacific Northwest. The Intermontane Islands were too big to sink beneath the continent. The subduction zone of the Intermontane Plate shut down, ending the volcanic arc. As the Intermontane Belt accreted to the edge of the continent, the subduction zone of the Insular Plate became the active subduction zone along the edge of the continent.


What is intermontane plateaus and Piedmont plateaus?

Intermontane PlateausThe Intermontane Plateaus is one of eight U.S. Physiographic regions of the physical geography of the contiguous United States, located in the Western United States. The physiographic region is composed of intermontane plateaus and mountain ranges.Piedmont PlateausThe surface of the Piedmont Plateau rises in elevation from approximately 200 feet above sea level at its eastern margin to a general base level of 1000 feet above sea level in the west. Individual peaks may rise to over 2000 feet in western parts of the province. Relief varies across the province, a fact which has led to the delineation of two subregions.


Intermontane Basin and Plateau physiographic province?

Nevada


What is a intermonate plateau?

an intermontane plateau is a plateau which is surrounded by mountains.


Is the intermontane region of north America found in eastern Canada?

False


What is an Intermontane Basin?

a wall of pee that washes over u like a sounomy


What state has most of its territory located in the intermontane basin and plateau physiographic province?

Nevada


Which region is dominated by a dry climate and has a topography of plateaus basins and ranges?

the intermontane region


What region is dominated by a dry climate and has a topography of plateaus basins and ranges?

the intermontane region


Which states contain the territory located in the Intermontane Basin and Plateau physiographic province?

nevada


How many regions does Wyoming have?

Wyoming has 3 main land regions. They are the Great Plains, the Rocky Mountains, and the Intermontane Basins.


A common influence of intermontane regions is that people living in the mountain valleys?

develop cultural differences and lack political unity