| 冀北印支期碱性岩浆活动及其地球动力学意义 |
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| 引用本文： | 张招崇,王永强.冀北印支期碱性岩浆活动及其地球动力学意义[J].矿物岩石地球化学通报,1997(4). |
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| 作者姓名： | 张招崇 王永强 |
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| 作者单位： | 中国地质科学院地质研究所(张招崇)，中国地质科学院西安地质矿产研究所(王永强) |
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| 摘 要： | 冀北印支期碱性岩浆活动及其地球动力学意义张招崇（中国地质科学院地质研究所，北京１０００３７）王永强（中国地质科学院西安地质矿产研究所，西安７１００５４）关键词碱性岩浆印支期冀北地球动力学燕山地区是否存在印支期的构造、岩浆活动一直存在着争论。过去多数人...
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| 关 键 词： | 碱性岩浆 印支期 冀北 地球动力学 |
Indosinian Alkaline Magmatism in North Hebei Province and Its Geodynamic Significance |
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| Zhang,Zhaochong.Indosinian Alkaline Magmatism in North Hebei Province and Its Geodynamic Significance[J].Bulletin of Mineralogy Petrology and Geochemistry,1997(4). |
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| Authors: | Zhang Zhaochong |
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| Abstract: | The Indosinian alkaline complexes in Hebei Province outcrop in an approxiamately east west direction, which distribute along the two deep faults. These alkaline complexes consist of three rock associations:(1)pyroxene diorite quartz alkali feldspar syenite alkali feldspar granite syenite aegirine augite syeninte alkali feldspar syenite;(2)pyroxenite biotite pyroxenite magnetite apatitic rock syenite;(3)nepheline syenite urtite aegirine augite syenite ijolite. The former occurs along the north deep fault,and the two latters along the south deep faults.From north to south,the alkalinity of the alkaline complexes increases while contents of SiO 2 decreases. Their geochemical and geological characteristics showed that these alkaline complexes were originated from the collision between the Sibrian plate and Sino Kerea plate at the end of Hercynian period. |
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| Keywords: | alkaline magmatism Indonsian north Hebei Province geodynamics |
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