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| GEOCHEMICAL CHARACTERISTICS OF NEOPROTEROZOIC LARGE-PORPHYRITIC ALKALI-FELDSPAR GRANITE IN MORDAGA AREA |
| WANG Zhong1, AN Chun-jie1, SHAO Jun2, MENG Er-gen1, ZHANG Ming1 |
1. Inner Mongolian Institute of Geological Survey, Hohhot 010020, China;
2. Shenyang Institute of Geology and Mineral Resource, Shenyang 110033, China |
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Abstract The large-porphyritic alkali-feldspar granite in Mordaga area is the product of the first magmatic activity of Ergun block. Study on the geological and geochemical characteristics of the large-porphyritic alkali-feldspar granite shows that the batholith was formed in Neoproterozoic Era during the continental crust evolution in syn-collision setting. From then on, the Ergun block started its intense collision-accretion period.
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Received: 01 December 2004
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2005, Vol. 14 
