The Farallon Trench was an ancient
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Oceanic trench — Oceanic crust is formed at an oceanic ridge, while the lithosphere is subducted back into the asthenosphere at trenches. The oceanic trenches are hemispheric scale long but narrow topographic depressions of the sea floor. They are also the… … Wikipedia
Marianas Trench Marine National Monument — President George W. Bush signs paperwork establishing the National Monument on January 6, 2009 The Marianas Trench Marine National Monument is a United States National Monument created by President George W. Bush by an executive order given on… … Wikipedia
Insular Islands — The Insular Islands were a giant chain of active volcanic islands somewhere in the Pacific Ocean during the Cretaceous time that rode on top a microplate called the Insular Plate, beginning around 130 million years ago. These islands collided… … Wikipedia
Mariana Islands — For other uses, see Mariana. Mariana Islands at map right, east of the Philippine Sea, and just west of the Mariana Trench in the ocean floor. The Mariana Islands (also the Marianas; up to the early 20th century sometimes called Ladrones Islands … Wikipedia
North American Plate — The North American plate, shown in brown The North American Plate is a tectonic plate covering most of North America, Greenland, Cuba, Bahama … Wikipedia
Mid-ocean ridge — Oceanic ridge, including a black smoker A mid ocean ridge is a general term for an underwater mountain system that consists of various mountain ranges (chains), typically having a valley known as a rift running along its spine, formed by plate… … Wikipedia
Nazca Plate — The Nazca plate, shown in light blue Full size image showing all plates The Nazca Plat … Wikipedia
Transform fault — (the red lines) A transform fault or transform boundary, also known as conservative plate boundary since these faults neither create nor destroy lithosphere, is a type of fault whose relative motion is predominantly horizontal in either sinistral … Wikipedia
Kula Plate — The Kula Plate was an oceanic tectonic plate under the northern Pacific Ocean south of the Near Islands segment of the Aleutian Islands. It was subducting under the North American Plate at the Aleutian Trench and is surrounded by the Pacific… … Wikipedia
Mid-Atlantic Ridge — The location of the Mid Atlantic Ridge The ridge was central in the breakup of Pangaea that began some 180 million years ago … Wikipedia
