A. The oceanic crust is thicker than the continental crust B. The thickness of the crust is the same everywhere on the Earth C. The continental crust is generally thicker than the oceanic crust D. The crust has no thickness difference at all ...
crust beneath northern BOB byBrune and Singh (1986)may be due to the fact that they neglected the deeper high velocitymetasediments, which, however, were later incorporated while inverting the seismological data byBrune et al. (1992). It is seen that moderately thick igneous oceanic crust of ...
Igneous emplacement on the NW Pacific oceanic crust via mantle activity, such as hot spots and mantle plumes, results in perturbations of crustal thickness. Therefore, mapping crustal thickness variations is key for understanding these mantle structures and processes. Improvements in resolution and ...
Crustal thickness becomes lower from northwest toward southwest, southeast and northeast, the geometry and range of which seems to be related to the Sichuan-Yunnan rhombic block surrounded by the Red River Fault and the Xiaojiang Fault, indicating that the crust is thicker within this rhombic block...
This isothermal surface is chosen since it provides a good fit to the peak change in the orientation of azimuthal anisotropy, which is characteristic of the transition between rigid lithosphere and convecting asthenosphere within oceanic regions28,29. In the continental realm, it is clear that ...
This is consistent with the model that increasing Sr/Y values are due to intracrustal evolution: where the crust is thicker magmas are likely to undergo a more extensive differentiation (resulting in progressively lower MgO contents) at higher average pressure conditions under which Y-bearing ...
This is consistent with the model that increasing Sr/Y values are due to intracrustal evolution: where the crust is thicker magmas are likely to undergo a more extensive differentiation (resulting in progressively lower MgO contents) at higher average pressure conditions under which Y-bearing ...
Assuming that the overlying basaltic lid (sheeted dikes and extrusives) is 1.52 km thick, the average crustal section in the Oman ophiolite is 0.51 km thinner than the standard 6-km-thick oceanic crust usually considered to be produced at fast spreading ridges, a point which is discussed. ...
than 5 km in the northeastern part of the West Philippine Basin, of crust thicker than 15 km in the Amami Plateau, the Daito and Oki-Daito Ridges, and also in the northern part of Kyushu-Palau Ridge, whereas the southern part of the Kyushu-Palau Ridge the crust is thicker than 10 km...
Finally, north and south of the plateaus, flat subduction areas are characterized by high Te, high shear wave velocity, thick thermal lithosphere, and low heat flow, indicating that continental lithosphere there is thicker, colder, and stronger. On the basis of these relationships we suggest that...