Sea Floor Scraping

Seafloor spreading is a process that occurs at mid ocean ridges where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.

Sea floor scraping.

The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate. Fisheries across the world are a shade of their former abundance. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. The more intensive types of deep sea mining involve actually removing parts of the seabed or seamounts which would kill any life living there and would take decades at the very least for the.

The east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american plate the cocos plate the nazca plate and the antarctic plate. Ships above will draw thousands of pounds of sediment through a. We overfish destroy habitat with sea floor scraping trawlers and toss out the less valuable creatures unfortunate enough to have. This idea played a pivotal role in the development of the theory of plate tectonics which revolutionized geologic thought during the last quarter of the 20th century.

Advances in bottom trawling technology have given commercial fishing boats access to the sea floor where unknown species have been making a living for eons march 25 2011 dear earthtalk. Seafloor spreading theory that oceanic crust forms along submarine mountain zones known collectively as the mid ocean ridge system and spreads out laterally away from them. Their collection vehicles will creep across the bottom in systematic rows scraping through the top five inches of the ocean floor. But what if it s not.