J4

• 地质与资源 • Previous Articles     Next Articles

40Ar/39Ar Isotopic Dating and Geological Significance of Mafic Rocks from the Jixi Basin, Heilongjiang Province

ZHU Zhan-ping1， LIU Li1，MA Rui1，QIU Zeng-kai2，MA Sheng-hui1   

  1. 1.College of Earth Sciences, Jilin University, Changchun 130061，China;2.College of Instrumentation & Electrical Engineering, Jilin University, Changchun 130061，China
  • Received:2008-08-15 Revised:1900-01-01 Online:2009-03-26 Published:2009-03-26
  • Contact: ZHU Zhan-ping

Abstract: The Chengzihe Formation in Zhangxin area of Jixi basin,Heilongjiang Province is intruded by the algorite sill. The mafic rocks are pure, porphyritic and contain no xenolith. The phenocrysts include ordinary augite and plagioclase and make up 35%-40% of the rock. The diabase has same 40Ar/39Ar platform and isochron age of 96-101 Ma within error limit, showing a formation age of the Albian-Cenomanian. Considering the feature of this episode of regional magmatic event, the measured age reveals that the Zhangxin area of the Jixi basin, Heilongjiang Province during the later stage of the Early Cretaceous and Early stage of the Late Cretaceous was under backarc extension within a general tectonic regime of ancient Pacific plate(Izanagi-Kula plate) subduction underneath the East Asia continental plate.

Key words: mafic rock, 40Ar/39Ar isotopic dating, Jixi basin

CLC Number: 

  • P618.13
[1] Fu Junyu, Wang Yan, Zhong Hui, Song Weimin, Sun Wei, Na Fuchao, Qian Cheng, Yang Yajun, Pang Xuejiao, Jiang Shan. Geochemistry and Source Characteristics of Ultramafic Rocks in Tuquan Mangniuhai, Inner Mongolia [J]. Journal of Jilin University(Earth Science Edition), 2017, 47(4): 1172-1186.
[2] Cai Yidong,Liu Dameng,Yao Yanbin,Li Junqian,Guo Xiaoqian,Zhang Bairen. Geological Controlling Factors and Prospective  Areas of Coalbed Methane in Jixi Basin [J]. Journal of Jilin University(Earth Science Edition), 2014, 44(6): 1779-1788.
[3] ZHANG Yong-sheng, SONG Tian-rui, CAO Ji, WANG Jun-tao, SU Kui, FAN Fu, GONG Wen-qiang, LIU Si-yu. First Finding of the Blinded Ancient Gold-Bearing Placer Layer Within Lower Cretaceous Strata from the Jixi Basin in Eastern Heilongjiang Province and Its Significance [J]. J4, 2010, 40(6): 1278-1286.
[4] SUN Lin-hua. Geochemical Inversion of the Wajilitag Ultramafic Rocks in Tarim Basin, NW China [J]. J4, 2010, 40(6): 1301-1310.
[5] ZHU Zhan-ping, LIU Li, MA Rui, QIU Zeng-kai. The Effects of Hypabyssal Intrusive to Clay Mineral of Sandstone Reservoir in Zhangxin Area in Jixi Basin [J]. J4, 2010, 40(5): 1027-1034.
[6] GAO Hong-mei,GAO Fu-hong,FAN Fu, GAO Yu-qiao. Geochemical Characteristics of Solvable Organic Matter Extracted from Source Rocks of Early Cretaceous in Jixi Basin [J]. J4, 2007, 37(1): 86-0090.
[7] YANG Xiao-ping, LI Yang-chun,LIU Zhen, WANG Yan, WANG Hong-jie. Classification of Tectonic Sequence and Dynamic Evolution of Jixi Basin, Eastern Heilongjiang Province [J]. J4, 2005, 35(05): 616-621.
[8] YANG Yan-chen,SUN De-you,MA Zhi-hong,XU Wen-liang. The Forming Mechanisms of Hongqiling Mafic and UltramaficIntrusive Bodies and Cu-Ni Sulfide Deposits [J]. J4, 2005, 35(05): 593-600.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Earth Science Edition), All Rights Reserved.
Tel: +86-431-88502374；13756165364　E-mail: xuebao1956@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd