| 广丰盆地早白垩世火山-侵入杂岩稀土元素地球化学特征及成因探讨 |
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| 引用本文： | 刘平华,吴仁贵,余达淦,周万蓬.广丰盆地早白垩世火山-侵入杂岩稀土元素地球化学特征及成因探讨[J].华东地质学院学报,2007,30(4):321-327. |
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| 作者姓名： | 刘平华 吴仁贵 余达淦 周万蓬 |
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| 作者单位： | 东华理工大学 江西抚州344000 |
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| 基金项目： | 核工业地质总局十一五科研项目(2006YGD26) |
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| 摘 要： | 江西广丰早白垩世盆地火山-侵入杂岩稀土元素地球化学特征表明,本区火山-侵入杂岩可能是一套具有成因联系的岩石系列,杂岩中基性岩可分出稀土特征不同两类岩石,中酸性岩石亦可分出稀土特征不同两类的岩石,其中(橄榄)玄粗岩与钾长斑岩、橄辉粗玄岩与花岗斑岩稀土元素标准化曲线和稀土元素特征参数具有相似性。这些信息对揭示本区早白垩世基性岩浆的底侵作用具有重要的启迪意义。
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| 关 键 词： | 火山-侵入杂岩 早白垩世 稀土元素 广丰盆地 |
| 文章编号： | 1000-2251（2007）04-0321-07 |
| 收稿时间： | 2007-04-29 |
| 修稿时间： | 2007年4月29日 |
REE Geochemistry Characteristics and Genesis of the Volcanic-intrusive Complex of the Early Cretaceous in Guangfeng Basin |
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| LIU Ping-hua,WU Ren-gui,YU Da-gan,ZHOU Wan-peng.REE Geochemistry Characteristics and Genesis of the Volcanic-intrusive Complex of the Early Cretaceous in Guangfeng Basin[J].Journal of East China Geological Institute,2007,30(4):321-327. |
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| Authors: | LIU Ping-hua WU Ren-gui YU Da-gan ZHOU Wan-peng |
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| Abstract: | REE geochemistry Characteristics of the volcanic-intrusive complex in the early Cretaceousin Guangfeng basin,Jiangxi Province,imply that the cemplex may be rock series.The basic rocks can be classified two types of rocks,which have different Ree geochemistry Characteristics.The intermediate-felsic rocks can be classified two types of rocks too.The chondrite-normalized REE patterns of K-feldspar porphyries are similar with the shoshonites and the patterns of granite porphyries are similar with the absarokites.This succession has an instructive significance to explore the basaltic magma underplating in eary Cretaceous,in the basin. |
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| Keywords: | volcanic-intrusive complex Early Cretaceous REE Guangfeng basin |
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