Geochemical constraints on the tectonic environment of the Late Paleoproterozoic mafic dyke swarms in the North China Craton
Geochemical constraints on the tectonic environment of the Late Paleoproterozoic mafic dyke swarms in the North China Craton
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华北克拉通晚古元古代基性岩脉群构造环境的地球化学约束
DOI:
10.1016/j.gr.2007.06.005
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发表时间:
2008
影响因子:
6.1
通讯作者:
Hou, Guiting, Li,J.H, Yang,M.H.,Yao,W.H., Wang,C.C
中科院分区:
文献类型:
--
作者:
Hou, Guiting, Li,J.H, Yang,M.H.,Yao,W.H., Wang,C.C
Late Paleoproterozoic mafic dyke swarms are widespread in the Shanxi Province in the Western Block and Central Orogenic Zone, and also in the Shandong Province of the Eastern Block of the North China Craton (NCC). Both of the mafic dyke swarms in Shandong and Shanxi plot mainly in the field of continental rift environment. The trace element spidergrams and the rare-earth element (REE) graphs of both mafic dyke swarms show similar geochemical features to data from the lavas (Xiong'er Group) in the Zhongtiao–Yanliao aulacogens. This suggests that the origin of the mafic dyke swarms is related to the aulacogens. The trace elements and isotopic data from the mafic dykes and lavas in the aulacogens suggest that the mafic magma is derived from partial melting of the subcontinental lithospheric mantle, and contaminated by lower crust, then intruded the pre-existing fractures to form mafic dyke swarms in a rifting environment. The mafic dyke swarms and aulacogens represent a continuous extension event from 1.84–1.77 Ga in response to the breakup of the supercontinent Columbia.
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影响因子:
2.8
作者:
H. Halls;Jianghai Li;D. Davis;Guiting Hou;Baoxing Zhang;X. Qian
通讯作者:
H. Halls;Jianghai Li;D. Davis;Guiting Hou;Baoxing Zhang;X. Qian
DOI:
10.1130/0-8137-2352-3.247
发表时间:
2001
期刊:
--
影响因子:
--
作者:
R. Ernst;K. Buchan
通讯作者:
R. Ernst;K. Buchan
影响因子:
5.3
作者:
N. Rogers;R. Macdonald;J. Fitton;R. George;Martin L. Smith;B. Barreiro
通讯作者:
N. Rogers;R. Macdonald;J. Fitton;R. George;Martin L. Smith;B. Barreiro
DOI:
10.1007/978-1-4614-3134-3_100249
发表时间:
2020
期刊:
Encyclopedia of Solid Earth Geophysics
影响因子:
--
作者:
C. Farnetani;A. Hofmann
通讯作者:
A. Hofmann
影响因子:
6.1
作者:
P. Peng;M. Zhai;Jing-hui Guo;T. Kusky;T. Zhao
通讯作者:
P. Peng;M. Zhai;Jing-hui Guo;T. Kusky;T. Zhao