A. the convergence of an oceanic plate and a continental plate B. the divergence of two continental plates C. the movement of a single plate without any interaction D. the sinking of a plate into the mantle without causing any surface feature 相关知识点: 试题...
What is convergence of oceanic plates?Convergence of plates:The outer layer of the Earth is made up of large slabs of rock called tectonic plates. Tectonic plates are usually made up of both continental plates and oceanic plates. Oceanic plates are usually thicker and more dense than continental...
When an oceanic and a continental plate collide, eventually theoceanic plateis subducted under the continental plate due to the high density of the oceanic plate. Once again a benioff zone forms where there are shallow intermediate and deep focus earthquakes. Where does oceanic continental convergenc...
The total work performed in continental subduction may be minimized if the angle of underthrusting becomes more shallow, changing the location of subduction. A model for the geometry of oceanic and continental slabs in the Zagros Mountains is presented which satisfies gravity, heat flow, seismic, ...
The Early Jurassic (200~170 Ma) was dominated by coeval landward subduction of the oceanic plates and the development of active continental margins and magmatic activity along the marginal zones. The Middle-Late Jurassic to Early Cretaceous (170~135 Ma) was characterized by the structural ...
The initial thermal structure of the oceanic and continental lithosphere was calculated from the half-space cooling model81, assuming a thermal diffusivity of 10−6 m2 s−1. An 80–40 Ma oceanic lithosphere (80 Ma for the left side and 40 Ma for the right side) was defined...
The initial thermal structure of the oceanic and continental lithosphere was calculated from the half-space cooling model81, assuming a thermal diffusivity of 10−6 m2 s−1. An 80–40 Ma oceanic lithosphere (80 Ma for the left side and 40 Ma for the right side) was defined...
When plate convergence consumes an entire ocean basin, bordering continental blocks are juxtaposed by crustal collision to produce composite continents made of once separate continental blocks joined along suture belts marking the sites of subduction zones that evolved from ancestral oceanic trenches. ...
Parts of this new ocean were later emplaced to form the western ophiolite belt in Pakistan. Consumption of oceanic crust and emplacement of ophiolites during the closure of the Neotethys occurred not only north of India (± Seychelles), but also along two or three subduction zones between the...
The vS profiles of oceanic and continental regions show strong upper mantle variations, as expected from plate tectonics, and most are consistent with lower mantle heterogeneity uncorrelated with surface tectonics. We construct probabilistic lower bounds for a set of convergence depths , where the vS ...