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| Keywords | |
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zircon U--Pb dating |
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diabase porphyrite |
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Yingchegnzi gold deposit |
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Ningan |
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Heilongjiang |
| Authors | |
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CHEN Xing-Shi-1 |
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NIE Xi-Tao-1 |
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SUN Jing-Gui-1 |
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WANG Qing-Hai-2 |
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GUO Jia-1 |
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ZHAO Yu-Jun-1 |
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ZHANG Peng-1 |
| PubMed | |
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Article by Chen, X. S. 1 |
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Article by Nie, X. T. 1 |
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Article by Sun, J. G. 1 |
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Article by Wang, Q. H. 2 |
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Article by Guo, J. 1 |
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Article by Zhao, Y. J. 1 |
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Article by Zhang, P. 1 |
Zircon U--Pb dating of associated diabase prophyrite with Yingchengzi hydrothermal gold deposit in Ning'an�� Heilongjiang and their geological significance
CHEN Xing-Shi-1, NIE Xi-Tao-1, SUN Jing-Gui-1, WANG Qing-Hai-2, GUO Jia-1, ZHAO Yu-Jun-1, ZHANG Peng-1
1. College of Earth Sciences��Jilin University��Changchun 130061��China; 2. International Centre for Geoscience Research and Education in Northeast Asia��Jilin University��Changchun 130026��China
Yingchengzi hydrothermal gold deposit is located in the ductile-brittle shear zone of Early Paleozoic granite body from the east of Zhangguangcailing magma tectonic belt. The zircon SHRIMP U-Pb dating of diabase porphyrite cropout in the mine field indicates that the concordant ages of 16 single-grain zircons can be divided into four groups��including 849. 7 �� 897. 0 Ma��755. 6 ± 19. 2 Ma��486 �� 514. 0 Ma and 419 �� 451 Ma. Combining with zircon characteristics and related geological dating data��the authors preliminarily confirm that the magmatism of diabase porphyrite occurred in continental post orogenic extensional setting (432 Ma) of Mashan or Caledonian periods. This area belongs to a part of Jiamusi Massif in Late Proterozoic and Early Paleozoic��or its crustal evolution was in the same environment as Jiamusi and Ergun massifs.