| 金堆城地区熊耳群火山岩系的构造背景及地球化学论据 |
| |
| 引用本文： | 余研.金堆城地区熊耳群火山岩系的构造背景及地球化学论据[J].大地构造与成矿学,1992,16(4):343-353. |
| |
| 作者姓名： | 余研 |
| |
| 摘 要： | 熊耳群一直被认为是地台盖层.近年来依板块观点,又被认为是安第斯型活动大陆边缘的安山岩建造.通过对金堆城熊耳群的地质、岩石化学、稳定微量元素(包括稀土)等方面的综合研究,证明熊耳群是产在华北古陆边缘水下裂谷的火山岩系.属地槽构造层.
|
| 关 键 词： | 构造背景 大陆边缘裂谷 地槽构造层 |
TECTONIC SETTING AND ITS GEOCHEMICAL EVIDENCE OF THE XIONGER GROUP VOLCANIC ROCK IN JINDUICHENG AREA,HENAN PROVINCE,CHINA |
| |
| Abstract: | The Pt_(2c)Xionger Group has been considered as a platform cover, or as andesite in an active continental margin according to plate tectonics. Study of the geology, petrochemistry and steady trace element (inclnding REE) of the Xionger Group has confirmed that it accumulated in a submarine rift in the North China Continental Margin and belonged to geosynclinal structural layer |
| |
| Keywords: | Tectonic setting continental magin rift geosynclinal structural layer |
| 本文献已被 维普 等数据库收录！ |
|
