Cretaceous magmatism and lithospheric extension in Southeast China

被引：956
作者：
Li, XH [1 ]
机构：
[1] Chinese Acad Sci, Guangzhou Inst Geochem, Guangzhou 510640, Peoples R China
来源：
JOURNAL OF ASIAN EARTH SCIENCES | 2000年 / 18卷 / 03期
关键词：
D O I：
10.1016/S1367-9120(99)00060-7
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
A new compilation of reliable isotope age data indicates that Cretaceous magmatism in SE China occurred in four major episodes during 136-146 Ma, 122-129 Ma, 101-109 Ma and 87-97 Ma. A-type granitic and within-plate basaltic magmatism from 140-90 Ma suggests a dominant extensional environment in the region. Voluminous coeval high-K calc-alkaline rocks, which have geochemical features similar to those formed in continental back-are and post-collision extension settings, are interpreted to have been generated in response to lithospheric extension. Cretaceous magmatism, NNE-trending wrench faulting and formation of extensional basin systems favour an extensional tectonic regime in SE China at that time, which was probably similar to present-day Basin and Range Province in the western US. (C) 2000 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：293 / 305
页数：13
相关论文
共 74 条
[1]  
[Anonymous], GEOL GUANGXI
[2]  
[Anonymous], 1983, CONTINENTAL BASALTS
[3]   THE SIGNIFICANCE OF SOURCE VERSUS PROCESS IN THE TECTONIC CONTROLS OF MAGMA GENESIS [J].
ARCULUS, RJ .
JOURNAL OF VOLCANOLOGY AND GEOTHERMAL RESEARCH, 1987, 32 (1-3) :1-12
[4]   Structural control and tectonic setting of Mesozoic volcanism in Hong Kong [J].
Campbell, SDG ;
Sewell, RJ .
JOURNAL OF THE GEOLOGICAL SOCIETY, 1997, 154 :1039-1052
[5]   ZR-RICH, TH-RICH, AND REE-RICH BIOTITE DIFFERENTIATES IN THE A-TYPE GRANITE PLUTON OF SUZHOU (EASTERN CHINA) - THE KEY ROLE OF FLUORINE [J].
CHAROY, B ;
RAIMBAULT, L .
JOURNAL OF PETROLOGY, 1994, 35 (04) :919-962
[6]  
Charvet J., 1994, J. Asian Earth Sci, V9, P387, DOI DOI 10.1016/0743-9547(94)90050-7
[7]  
Chen J., 1985, CHIN J GEOCHEM, V4, P220
[8]   Crustal evolution of southeastern China: Nd and Sr isotopic evidence [J].
Chen, JF ;
Jahn, BM .
TECTONOPHYSICS, 1998, 284 (1-2) :101-133
[9]  
CHEN JF, 1993, ACTA PETROL SIN, V9, P77
[10]  
CHEN JF, 1991, GEOSCIENCE, V5, P91
12345678