Sea Floor Scraping

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.

Sea floor scraping. But what if it s not. Their collection vehicles will creep across the bottom in systematic rows scraping through the top five inches of the ocean floor. 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.

Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. Seafloor spreading is a geologic process where there is a gradual addition of new oceanic crust in the ocean floor through a volcanic activity while moving the older rocks away from the mid oceanic ridge. 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. Seafloor spreading definition a process in which new ocean floor is created as molten material from the earth s mantle rises in margins between plates or ridges and spreads out.

These sounds have to have been made by very large objects or possibly creatures with most scientists believing the sounds are large icebergs scraping 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. We overfish destroy habitat with sea floor scraping trawlers and toss out the less valuable creatures unfortunate enough to have. Fisheries across the world are a shade of their former abundance.