| 相山地区如意亭剖面火山建造特征 |
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| 引用本文： | 吴仁贵.相山地区如意亭剖面火山建造特征[J].华东地质学院学报,1999,22(3):201-208. |
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| 作者姓名： | 吴仁贵 |
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| 作者单位： | 华东地质学院资源与环境工程系 |
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| 摘 要： | 对如意亭剖面鹅湖岭组与打鼓顶组的界线进行了重新厘定，对早晚两个火山活动旋回火山岩的化学成分，稀土配分特征进行了比较，得出两旋回火山岩系属同一岩浆源的不同阶段演化产物的认识，同时，指出了两旋回间及早旋回与基底之间的界面是相山火山塌陷中的两个滑脱面，它们分别被花岗斑岩和流纹英安斑岩所侵位，构成了相山火山塌陷盆地东北部及西北部的半球状构造。
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| 关 键 词： | 火山活动旋回 如意亭剖面 相山 火山 建造特征 |
The features of volcanic formation in Ruyiting Profile of Xiangshan |
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| Wu Rengui.The features of volcanic formation in Ruyiting Profile of Xiangshan[J].Journal of East China Geological Institute,1999,22(3):201-208. |
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| Authors: | Wu Rengui |
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| Abstract: | The border of Ehuling group and Daguding group was renewed.it concluded that volcano rocks of former subcycle and latter subcycle volcanic activities all came from the same source of magma,according to their chemical compositions and their chondrite normalized REE patterns.It pointed out that meanwhile,the borders between Ehuling group and Daguding group and underlay-layer,which were invaded by granite porphyry and rhyodacite porphyry,respectively,were two shiole faces of the volcano subside and they comprised the half round structure of east northern and westrorthem of xiangshan basin. |
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| Keywords: | Ruyiting profile Xiangshan volcanic-subside basin volcanic activity cycle |
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