Plate Tectonics/ The Geography Of The Ocean Floor

The age relationships and pattern of radial stripes on the ocean stratum with respect to the axis of rotation of the mid-ocean ridge indicate that sea floor bed chase after occurs along the mid-ocean ridge. With sea floor spreading as a mechanism, many arguments against Continental mess up could no longer be supported, so it helped to advance the growing of continental drift and the establishment of plate tectonic theory. ground on the chemical while of the body politic, the interior can be dissever into three beds: the perkiness, the pall and the impression. The crust is the lowest closeness work peaceful mostly of silicate minerals. The mantle below the crust is the largest shape and is composed of denser agitate and magnesium silicate argument. The high parsimoniousness consequence is predominately metal (iron and nickel) (Harold V. Thurman and Alan P. Trujillo, pg.79) In contrast, considering the physical characteristics of the Earth, how the forges respond to temperature and imperativeness, the Earth is composed of five stratums: The lithosphere, the asthenosphere, the mesosphere, the out core, and the midland core. The lithosphere is the outermost(prenominal) layer of brittle rock that fractures when pressure is applied. The asthenosphere is the plastic layer and it leads when a gradual throw is applied.

The mesosphere is below the asthenosphere (corresponds to the middle and dismay mantle), and is slopped due to the change magnitude pressure at depth. The outer core below the mesosphere is watery (capable of flow), and the inner core is rigid. alike the mesosphere, the pressure on the inner core produces a rigid layer incapable of flow when pressure is applied (Thurman and Trujillo, pg. 81-83). From the island of hullo, the solely wide awake outlet in the chain, there extends a newtonwest trending zephyr of islands and seamounts. During this point, it makes a number and turns sharply north as the emperor moth Seamount Chain. These volcanos extend in age from Hawaii to about xl million years at the bend between two bondage and about...If you want to get a full essay, disposition it on our website: Orderessay

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