The Earth's layers, showing the Inner and Outer Core, the Mantle, and Crust. Credit: discovermagazine.com There is more to the Earth than what we can see on the surface. In fact, if you were able to hold the Earth in your hand and slice it in half, you’d see that it has mu...
Beneath the Tanlu faults zone, which seperates the Songliao Basin and Changbai region, the Moho is uplift and the crustal thickness changes rapidly. We interpret this feature as that the Tanlu faults might deeply penetrate into the upper mantle, and facilitate the mantle upwelling along the ...
An-Qi Wang, De-Bin Yang, Hao-Tian Yang, Mao-Song Mu, Yi-Kang Quan, Xiang-Yu Yan, Le-Ran Hao, Wen-Liang Xu. Crust–mantle interaction recorded by Early Cretaceous volcanic rocks within the southern margin of the North China Craton[J]. Geoscience Frontiers, 2022, 13(6): 101447. DOI...
Block and surrounding regions, we used FMTOMO traveltime tomography method to determine the high-resolution P-wave velocity structures of the crust and upper mantle down to 400 km depth, and analyzed the relationship between deep structure and a range of geodynamic issues, such as the volcanic...
Therefore, zircon preserves reliable geochemical records such as the initial isotopic magma composition at the time of crystallization, variable magmatic processes as well as source heterogeneities and/or melt contamination with mantle-derived or crustal material. It is therefore one of the most widely...
Finally, positive Ps conversions can be observed from the 410 and 660-km discontinuities at the top and bottom of the mantle transition zone, respectively.doi:10.1029/2017TC004726Qian, HChinese Acad Geol SciMechie, JDeutsch GeoForschungsZentrum GFZLi, H...
Multi-parameter adjoint tomography of the crust and upper mantle beneath East Asia: Part I: Model construction and comparisons, J. Geophys. Res. 120, no. 3, 1762-1786.M. Chen, F. Niu, Q. Liu, J. Tromp, and X. Zheng. Multi parameter adjoint tomography of the crust and upper mantle...
aThe depth of low-velocity layers of Songliao basin ranges from 20 to 40 km in the crust, and 60 to 90 km in the upper mantle. A minimum depth is found in Qiqihar-Harbin area. 松辽盆地低速度层的深度从20到40公里和60到90公里在外壳在上地幔范围。 极小的深度在Qiqihar哈尔滨地区被找到。[...
XU,Yi,LIU,Jianhua,LIU,Futian,SONG,Haibin,HAO,Tiany 摘要: Using arrival data of the body waves recorded by seismic stations, we reconstructed the velocity structure of the crust and upper mantle beneath the southeastern edge of the Tibetan Plateau and the northwestern continental margin of the ...
Near the eastern piedmont fault zone of the Helan Mountain, the low-velocity zone in the upper crust of the Yinchuan Basin is connected to that in the middle and lower crust of the Helan Mountain to the west. At the top of the upper mantle (50–80 km), there is a significant low...