[an error occurred while processing this directive] ������� 2010, 29(1) 51-55 DOI:     ISSN: 1004-5589 CN: 22-1111/P

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PubMed
Article by Chen, X. 1
Article by 2
Article by Wang, J. X. 2
Article by Zhang, Z. Z. 1
Article by Liu, R. F. 1
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1. ����ʡ��ɫ�����������ʿ����, �Ͼ� 210007; 2. ���ִ�ѧ�����ѧѧԺ, ���� 130026
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�����������𳡹������ҽ�����ҪΪ������������, ��ʯSiO2����Ϊ62.60% ��64.18% , ȫ�� (Na2O + K2O) ����Ϊ6.57% ��7.45% , K2O >Na2O; MAL Iָ��Ϊ4.48��6.68, ASIָ��(������ָ��) Ϊ1.44��1.79 > 1.1, ����( > 0.2% ) , ��þ�ʡ����ԡ�(ǿ) �����ʻ�����, ���ҽ�����̶Ƚϸ�(D I = 71.71��76.92) �������Ļ������������γ�����ײ����ɽ���ڵĹ��컷��, �ҽ�Դ�������ʿ�����Ҫ��Դ�ڵؿ�����, Դ�ҿ�����ɰм�ҡ�

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Major element features of ore-bearing rock in Jinchanggou copper-molybdenum deposit of Jidong, Heilongjiang and its tectonic setting
CHEN Xue-1, 2, WANG Jian-Xin-2, ZHANG Zun-Zhong-1, LIU Rong-Fang-1
1. Eastern China Geological & Mining Organization for Jiangsu Non-ferrors Metals, Nanjing 210007, China; 2. College of Earth Sciences, Jilin University, Changchun 130026, China
Abstract:

The main magmatic rocks in Jinchanggou are granodiorite porphyry in category. The contents of the rocks are 62.60%��64.18% in SiO2 , 6.57%��7.45% in Na2O + K2O, with K2O > Na2O, 4.48-6.68 in the modified calc-alkali index (MAL I) , 1.44-1.79 > 1.1 for alumina saturation index (ASI) , which shows P-riched ( > 0.2% ) and belongs to magnesian, alkalin and peraluminium granite, and having a high differentiation degree (D I = 71.71��76.92). The granodiorite porphyry formed in the tectonic setting of collision or late orogeny, and its source materials mainly sourced from the crust, and the source rock is most likely from the arenite.

Keywords: Jinchanggou   granodiorite porphyry   tectonic setting   Heilongjiang  
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1�� ������, �����, ������, ������, ��ѩ.�����𳡹�ͭ�⡢������ؿ��������ҿ���[J]. �������, 2009,28(3): 305-309
2������1��������1��������1����ѩ1�������2.�ﻯ̽�ɹ����ҿ����Ԥ���е�Ӧ�� ———�Լ����𳡹�ͭ������Ϊ��[J]. �������, 2010,29(2): 327-356

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