Results 21 to 30 of about 288 (167)

A seismic model for crustal structure in North China Craton

Earth and Planetary Physics, 2017
We present a digital crustal model in North China Craton (NCC). The construction of crustal model is based on digitization of original seismic sounding profiles, and new results of three-dimensional structure images of receiver functions.
TianYu Zheng, YongHong Duan, WeiWei Xu, YinShuang Ai   +3 more
doaj   +1 more source

Depth migration of crustal-scale seismic reflection profiles: A case study in the Bohai Bay basin

Frontiers in Earth Science, 2023
The application of the pre-stack depth migration (PSDM) method using deep seismic reflection data is still a challenge. In this paper, a deep seismic reflection dataset collected from the Bohai Bay Basin is used to test the applicability of the pre-stack
Xiaofan Deng, Hongqiang Li, Rui Gao, Rui Gao, Rui Gao   +4 more
doaj   +1 more source

The Crustal Anisotropy of West Ordos Block and Its Geodynamic Implications

Geochemistry, Geophysics, Geosystems, 2021
Based on the teleseismic records of the dense broadband seismic array, the crustal anisotropy parameters of the west Ordos block and its adjacent regions were determined with P wave receiver functions.
Jinyu Lv, Xuzhang Shen, Liuting Huang, Xiaohui He, He Huang, Wenjun Zheng, Dongli Zhang, Jian Zhang   +7 more
doaj   +1 more source

Gold mineralization and metallogenesis associated with mantle dynamics in East China

Frontiers in Earth Science, 2022
East China can be divided into two parts: the North China Block (or North China Craton) (NCC) and the South China Block (SCB). The mechanism for the destruction of the NCC and the large-scale magmatic activity in the SCB during the Mesozoic is a major ...
Chuansong He
doaj   +1 more source

Red to Green: A Lipid Biomarker Record of Tonian-Ediacaran Algae in Siberia. [PDF]

Geobiology
ABSTRACT Multiple lines of evidence point to a major diversification of Eukarya in the late Tonian period, ca. 800–720 Ma ago. Regular steranes, lipid biomarkers primarily sourced from eukaryotes, are first unambiguously reported from multiple sites. Here, we present lipid biomarker stratigraphic records from two drill‐cores from the Lena‐Anabar Basin ...
Rizzo AI, Bekker A, Kuznetsov AB, Ershova VB, Xiong Y, Karlstrom KE, Poulton SW, Love GD.   +7 more
europepmc   +2 more sources

Mesozoic Tectono-Thermal Event of the Qinshui Basin, Central North China Craton: Insights From Illite Crystallinity and Vitrinite Reflectance

Frontiers in Earth Science, 2021
The Qinshui Basin is in the Central Orogenic Belt of the North China Craton (NCC), and the production of coalbed methane accounts for 70% of China’s total coalbed methane output.
Runchuan Liu, Runchuan Liu, Runchuan Liu, Runchuan Liu, Zhanli Ren, Peng Yang, Huaiyu He, Huaiyu He, Huaiyu He, Thomas M. Smith, Thomas M. Smith, Thomas M. Smith, Wei Guo, Wei Guo, Wei Guo, Lin Wu, Lin Wu, Lin Wu   +17 more
doaj   +1 more source

Construction and destruction of some North American cratons [PDF]

Tectonophysics, 2017
Abstract Construction histories of Archean cratons remain poorly understood; their destruction is even less clear because of its rarity, but metasomatic weakening is an essential precursor. By assembling geophysical and geochemical data in 3-D lithosphere models, a clearer understanding of the geometry of major structures within the Rae, Slave and ...
David B. Snyder, Eugene Humphreys, D. Graham Pearson   +2 more
openaire   +1 more source

Crustal structure beneath the central and western North China from receiver function analysis

Earthquake Science, 2022
The North China Craton (NCC) is one of the oldest cratons on earth. Several important tectonic transformations of Mesozoic-Cenozoic tectonic regime led to the destruction of the North China craton. The knowledge of crustal structure can provide important
Xin Gao, Yonghua Li, Xiaoyu Yang, Zhiyuan Ren   +3 more
doaj   +1 more source

Modeling Craton Destruction by Hydration‐Induced Weakening of the Upper Mantle [PDF]

Journal of Geophysical Research: Solid Earth, 2017
AbstractGrowing evidence shows that lithospheric mantle beneath cratons may contain a certain amount of water that originated from dehydration of subducted slabs or mantle metasomatism. As water can significantly reduce the viscosity of nominally anhydrous minerals such as olivine, hydration‐induced rheological weakening is a possible mechanism for the
Jie Liao, Qin Wang, Taras Gerya, Maxim D. Ballmer   +3 more
openaire   +3 more sources

Study on the basement structure in the southeastern North China by blasting seismic

Geodesy and Geodynamics, 2018
Since the Mesozoic, southeastern North China Craton has experienced intense crustal thinning and lithosphere destruction. Some of the responses of the deep activity in the upper crust crystalline basement have been retained in a series of tectonic ...
Zhenyu Fan, Jinren Zhao, Suzhen Pan, Cejun Ma, Mingxin Qu, Yan Hai, Xiaoguo Deng   +6 more
doaj   +1 more source