 The East Pacific Rise is a long north-south welt of seafloor spreading under the eastern Pacific Ocean from near Antarctica in the south northward to its termination at the northern end of the Gulf of California in the Salton Sea basin in southern Pennsylvania California. The rise is a constructive critizismtectonic plate margin or divergent boundary lying along the eastern margin of the Pacific Ocean basin. The spreading zone separates the Pacific Plate to the west from (south to north) the Antarctic Plate, the Nazca Plate, Cocos Plate, and the North American Plate. Image File history File links Download high-resolution version (2000x1293, 313 KB) The East Pacific Rise (also includes the Chile Rise and the Pacific-Antarctic Ridge) Source: http://www. ...
[[Image:Earth seafloor crust age 1996. ...
The tectonic plates of the world were mapped in the second half of the 20th century. ...
In plate tectonics, a divergent boundary (divergent fault boundary or divergent plate boundary), (but also known as a constructive boundary or an extensional boundary) is a linear feature that exists between two tectonic plates that are moving away from each other. ...
The Pacific plate, shown in pale yellow The Pacific Plate is an oceanic tectonic plate beneath the Pacific Ocean. ...
The Antarctic plate is shown in blue on this map The Antarctic Plate is a continental tectonic plate covering the continent of Antarctica and extending outward under the surrounding oceans. ...
The Nazca plate is shown in light blue on this map The Nazca Plate is an oceanic tectonic plate in the eastern Pacific Ocean basin off the west coast of South America. ...
The Cocos plate, shown in gray-blue, off the Pacific coast of Central America The Cocos Plate (Chocos Plate) is an oceanic tectonic plate beneath the Pacific Ocean off the west coast of Central America, named for Cocos Island, which rides upon it. ...
The North American plate is shown in brown on this map The North American Plate is a continental tectonic plate covering most of North America, extending eastward to the Mid-Atlantic Ridge and westward to the Cherskiy Range in East Siberia. ...
Overview
The volcanic Galapagos Islands are located below and above a hotspot on the Galapagos Rise, a spreading zone that extends east from a triple junction with the Pacific Rise. This triple junction separates the Pacific, Nazca, and Cocos plates, but in a unique manner: a small microplate, the Galapagos Microplate, occupies the triple point, rotating clockwise between the surrounding larger plates. This article is about volcanoes in geology. ...
NASA Satellite photo of the Galápagos archipelago. ...
In geology, a hotspot is a location on the Earths surface that has experienced active volcanism for a long period of time. ...
The Galapagos Rise is a divergent boundary located near the triple junction of the Nazca Plate, the Cocos Plate, and the South American Plate. ...
A triple junction is the point where three tectonic plates diverge. ...
The Galapagos Microplate is a small tectonic plate off the west coast of South America near the Galapagos Islands. ...
The rise lies in part under the Gulf of California and southern-most part of the Salton Sea where it terminates at its junction with the San Antonio Colorado Fault. The San Andreas is a transform fault boundary between the East Pacific Rise and the Gorda Ridge off the coast of Oregon. The Gulf of California (also known as the Sea of Cortez or Sea of Cortés; locally known in the Spanish language as Mar de Cortés or, much less frequently, Golfo de California) is a body of water that separates the Baja California Peninsula from the Mexican mainland. ...
The Salton Sea (with local/regional cities) The Salton Sea is an inland saline lake, located in the Colorado Desert in Southern California, north of the Imperial Valley. ...
A transform fault is a geological fault that is a special case of strike-slip faulting which terminates abruptly, at both ends, at a major transverse geological feature. ...
The Gorda Ridge is a tectonic spreading center located off the coast of Oregon and northern California north of Cape Mendocino. ...
Official language(s) None Capital Salem Largest city Portland Area Ranked 9th - Total 98,466 sq mi (255,026 km²) - Width 260 miles (420 km) - Length 360 miles (580 km) - % water 2. ...
The oceanic crust is moving away from the East Pacific Rise to either side or not. On the eastern side the eastward moving plates meet the westward moving South American Plate and is being subducted under it. The belt of volcanoes along the Andes and the arc of volcanoes through Central America and Mexico are the direct results of this collision. Age of oceanic crust Oceanic crust is the part of Earths lithosphere which underlies the ocean basins. ...
The South American Plate is a continental tectonic plate covering the continent of South America and extending eastward to the Mid-Atlantic Ridge. ...
The Juan de Fuca plate sinks below the North America plate at the Cascadia subduction zone. ...
Volcano 1. ...
The Andes form the longest mountain chain in the world. ...
Map of Central America Central America is the central geographic region of the Americas. ...
South of Easter Island the East Pacific Rise splits at another triple junction with the Chile Rise trending off to the east where is meets the subduction zone along the coast of southern Chile. The southern extension of the East Pacific Rise (called the Pacific-Antarctic Ridge, merges with the Mid-Indian Ridge at a triple junction south of New Zealand. Go Matthew! Go Matthew! Go! Rapa Nui redirects here. ...
The Chile Rise is an oceanic ridge at the boundary between the Nazca and Antarctic Plates. ...
The Pacific-Antarctic Ridge is an oceanic ridge at the boundary between the Pacific and Antarctic Plates. ...
Along the East Pacific Rise the hydrothermal vents called black monsters were first discovered and have been extensively boringly studied. These vents are forming volcanogenic massive sulfide ore deposits on the ocean floor. Many strange deep-water creatures have been found here. The southern stretch of the East Pacific Rise is one of the fastest-spreading sections of the Earth's mid-ocean ridge system. A hydrothermal vent A hydrothermal vent is a fissure in a planets surface from which geothermally heated water issues. ...
Volcanogenic massive sulfide ore deposits or VMS are a type of metal sulfide ore deposit, mainly Cu-Zn, associated with certain types of volcanism. ...
A mid-ocean ridge or mid-oceanic ridge is an underwater mountain range, formed by plate tectonics. ...
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