The Kula Plate was an ancient oceanic plate, which began subducting under the Pacific Northwest region of North America as Pangaea broke apart during the Jurassic period. Oceanic crust is the part of Earth's Lithosphere that surfaces in the Ocean basins In Geology, a subduction zone is an area on Earth where two tectonic plates meet and move towards one another with one sliding underneath the other The Pacific Northwest is a region in the northwest of North America (the term refers to the land not the ocean Pangaea, Pangæa or Pangea (pænˈdʒiːə from παν pan, meaning entire, and Γαῖα Gaea, meaning Earth in The Jurassic is a geologic period and system that extends from about Ma (million years ago to Ma that is from the end of the Triassic to the beginning The Kula Plate subducted under Alaska much like the Pacific Plate does. The Pacific Plate is an oceanic Tectonic plate beneath the Pacific Ocean. There was a triple junction of three ridges between the Kula Plate to the north, the Pacific Plate to the west and the Farallon Plate to the east called the Kula Ridge. A triple junction is the point where the boundaries of three Tectonic plates meet The Pacific Plate is an oceanic Tectonic plate beneath the Pacific Ocean. The Farallon Plate was an ancient Oceanic plate, which began Subducting under the west coast of the North American Plate &mdash then located in modern The Kula Plate was subducted under the North American Plate at a relatively steep angle, so that the Canadian Rockies are primarily comprised of thrusted sedimentary sheets with relatively little contribution of continental uplift, while the American Rockies are characterized by significant continental uplift in response to the shallow subduction of the Farallon Plate. The North American Plate is a Tectonic plate covering most of North America, Greenland and part of Siberia. The Canadian Rockies comprise the Canadian segment of the North American Rocky Mountains range. Sedimentary rock is one of the three main rock types (the others being igneous and Metamorphic rock) About 55 million years ago, the Kula Plate began an even more northerly motion. Riding on the Kula Plate was the Pacific Rim Terrane consisting of volcanic and sedimentary rocks. Volcanic rock is an Igneous rock of volcanic origin Texture Volcanic rocks are usually fine-grained or Aphanitic to glassy in It was scraped off and plastered against the continental margin, forming what is today Vancouver Island. The continental margin is the zone of the Ocean floor that separates the thin Oceanic crust from thick Continental crust. Vancouver Island is a large Island in British Columbia, Canada, one of several North American regions named after George Vancouver, the British By 40 million years ago, the compressional force of the Kula Plate ceased. The existence of the Kula Plate was inferred from the westward bend in the alternating pattern of magnetic anomalies in the Pacific Plate. A geomagnetic reversal is a change in the orientation of Earth's magnetic field such that the positions of magnetic north and magnetic south become interchanged The Pacific Plate is an oceanic Tectonic plate beneath the Pacific Ocean.
There is a portion of the Kula Plate at the surface in the southern Bering Sea. The Bering (or Imarpik) Sea is a body of water in the Pacific Ocean that comprises a deep water basin (the Aleutian Basin) which rises through
Contents |
Name
The name Kula is from a Native American word meaning all gone. Native Americans in the United States are the indigenous peoples from the regions of North America now encompassed by the continental United States [1]
See also
External links
- Reconstruction of the Kula Plate
- Kula Plate in the area of the present Northwestern United States
- Kula plate when it separates from the Farallon plate
References
The Farallon Plate was an ancient Oceanic plate, which began Subducting under the west coast of the North American Plate &mdash then located in modern The Izanagi Plate was an ancient Tectonic plate, which began subducting beneath the eastern Eurasian Plate during 130 - 100 MaDapyx Software network: MP3 Explorer | Ebook Manager | Zenithic