GEOCHEMISTRY OF THE GALASHAN INTRUSIVE ROCKS IN NENJIANG, HEILONGJIANG PROVINCE
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摘要: 黑龙江嫩江嘎拉山侵入岩主要分布于古元古代古老结晶基底-落马湖微地块区,岩石类型基本为不同时期的二长花岗岩、花岗闪长岩.岩石化学特征上显示较好的同源性,地球化学特征上属于轻稀土富集型,微量元素以较高的大离子亲石元素(如Cs、Th、Ce、Ta)含量为特征.Abstract: The Galashan intrusive rocks in Nenjiang, Heilongjiang Province are distributed mainly in the Paleoproterozoic crystalline basement of Luomahu micro-block area. The rock types involve monzogranite and granodiorite of various periods. Lithochemically, the rocks show congenetic characteristics, geochemically belonging to LREE enrichment type, with high content of LILE elements (such as Cs, Th, Ce and Ta).
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Key words:
- intrusive rocks /
- geochemistry /
- lithochemistry /
- Galashan /
- Heilongjiang Province
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