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| Keywords | |
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cumulate gabbro |
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geochemical characteristics |
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tectonic environment |
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Xiaoxing anling |
| Authors | |
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YANG Nai-Feng-1 |
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GAO Bo-1 |
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ZHAO Yu-Lin-1 |
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SUN Zhen-Jun-2 |
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LI Chao-2 |
| PubMed | |
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Article by Yang, N. F. 1 |
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Article by Gao, B. 1 |
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Article by Zhao, Y. L. 1 |
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Article by Sun, Z. J. 2 |
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Article by Li, C. 2 |
Geochemical characteristics and tectonic setting of cumulate gabbro in Erlongshan Tree Farm in Xiaoxing anling
YANG Nai-Feng-1, GAO Bo-1, ZHAO Yu-Lin-1, SUN Zhen-Jun-2, LI Chao-2
1�� Geophysical Exploration Institute of Heilongjiang Province��Harbin 150036��China; 2�� College of Earth Sciences��Jilin University��Changchun 130061��China
The major��trace and REE element testings of the gabbro in Erlongshan Tree Farm in northern Xiaoxing'anling showed that: the gabbro in the Farm belonged to calc-alkaline series and metaluminous rocks with δEu positive anomaly��and Sr element enriched obviously with the characteristics of cumulate gabbro�� The characteristics of Rb /Sr��Nb /Ta��LILE /HFSE��Th /Ta��Nb /U and Nb /La ratios showed that the gabbro magma came from the mantle source metasomatized by subduction fluid�� The characteristics of Nb /Zr��Th /Nb��Th /Ta and Ta / Hf ratios and the Th /Hf-Ta /Hf tectonic setting discrimination diagram showed that the gabbro in Erlongshan formed in continental extension environment��
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