Sea Floor Spreading In Chinese

Molten rock erupts onto the seafloor there then cools and rifts away from the ridge on either side in a process known as seafloor spreading.

Sea floor spreading in chinese.

The oceanic crust is composed of rocks that move away from the ridge as new crust is being formed. 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. Spreading rate is the rate at which an ocean basin widens due to seafloor spreading. The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate 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.

The seafloor is the ground under the sea. Spreading rates determine if the ridge is fast intermediate or slow. A profound consequence of seafloor spreading is that new crust was and still is being continually created along the oceanic ridges. Our interpretation is that symmetric seafloor spreading of 5 6 cm year full rate began at 31 ma at an e w trending ridge in the central part of the south china sea.

The formation of the new crust is due to the rising of the molten material magma from the mantle by convection current. After a ridge jump of 50 km to. Evidence of indochina block extrusion and south china sea seafloor spreading marine geophysical research 10 1007 s11001 013 9187 3 34 3 4 309 323 2013. Continental drift and seafloor spreading.

Seafloor spreading theory that oceanic crust forms along submarine mountain zones and spreads out laterally away from them. As rifting seafloor spreading and collision processed subsidence also occurred in the south china sea. Meaning pronunciation translations and examples. The process of sea floor spreading the mid ocean ridge is the region where new oceanic crust is created.

The thickest portions of the continental crust are associated with this type of boundary. Select all that apply. Cuimei zhang zhenfeng wang zhipeng sun zhen sun jianbao liu zhangwen wang structural differences between the western and eastern qiongdongnan basin.