| 铁岭地区太古宙花岗岩系地质特征 |
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| 引用本文： | 徐文权,姜宝军.铁岭地区太古宙花岗岩系地质特征[J].国土资源,1994(Z1). |
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| 作者姓名： | 徐文权 姜宝军 |
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| 作者单位： | 辽宁省地质矿产局第九地质大队 |
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| 摘 要： | 铁岭地区太古宙花岗岩系由独立封闭的几个灰色片麻岩体组成，属英云闪长岩─奥长花岗岩系列。锆石单颗粒Ｐｂ－ｐｂ年龄为２５４８－２５５３Ｍａ。片麻岩体中包裹有斜长角闪岩、磁铁石英岩等变质表壳岩。花岗岩系稀土元素具有强分馏形式，形成于晚太古代大陆及大陆边缘环境，其北部为吉黑褶皱带寒武系变质岩系。华地地台与吉黑地槽之间由海西－燕山期中酸性侵入岩填充，形成宽约５＝１０ｋｍ的岩浆活动带。
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| 关 键 词： | 铁的地区，太古宙，花岗岩系，槽台界线 |
GEOLOGICAL CHARACTERISTICS OF ARCHEAN GRANITESE SERIES IN TIELING AREA |
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| Xu Wenquan,Jiang Baoiun.GEOLOGICAL CHARACTERISTICS OF ARCHEAN GRANITESE SERIES IN TIELING AREA[J].Land & Resources,1994(Z1). |
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| Authors: | Xu Wenquan Jiang Baoiun |
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| Abstract: | The Archean granite series in Tieling area consisted of several grey independent andclosed gneiss bodies is of quartz biotite-diorite-oligoclase granite series.Pb-Pb age of singlegrain zircon is 2 548-2553Ma.These gneiss bodies include metamorphic supercrust rocks,such as plagioamphibolite,magnetite quartzite,etc. The granite system,in which REEs have astrong characteristics of fractionation occurred in the late Archean continent and its borders.To the north of the granite system is a Cambrian metamorphic system of Jilin-Heilongjiangfold belt.Between North China plateform and Jilin-Heilongjiang geosyncline,it is filled withHecynian-Yanshanean mid-acid intrusive rocks, which formed a magmatic active belt in 5-10km wide. |
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| Keywords: | Tieling area Archean Granite system Boundary between syncline andplateform |
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