Friday, October 25, 2013

Bathymetric Mapping

An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 m. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface. An underwater sea mount is an underwater mountain rising from the ocean floor and having a peaked or flat-topped summit below the surface of the sea. The continental shelf is the extended perimeter of each continent and associated coastal plainsubmarine canyon is a steep-sided valley cut into the sea floor of the continental slope, sometimes extending well onto the continental shelf. 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 tectonicsAn island arc is a type of archipelago, often composed of a chain of volcanoes, with arc-shaped alignment, situated parallel and close to a boundary between two converging tectonic plates.
 The topograph of our surveyed area was mostly 12 inches but varied from about 10 to 14 inches as well. The advantages to usuing a remote sensing techonolgy is that one can know the depth of the sea floor without actually having to go and explore the entire abyss. The advantages to using this technique is that you can picture things rising over a slow grade over a long time better. 1). How does the clay represent the different parts and texture of the ocean floor? 2). Does surveying the bottom of the ocean sound like an interesting occupation?
It shows us how different and interesting the ocean floor and cracks and shelves are and how truly much we have yet to explore. 

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