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| 洞子沟地区大红峪组富钾火山岩岩石学、地球化学特征 | |
| 引用本文： | 丁建华, 肖成东, 秦正永. 洞子沟地区大红峪组富钾火山岩岩石学、地球化学特征[J]. 华北地质, 2005, (2): 100-105. doi: 10.3969/j.issn.1672-4135.2005.02.006 |
| 作者姓名： | 丁建华 肖成东 秦正永 |
| 作者单位： | 中国地质大学,北京,100083; 天津华北地质勘查局,天津,300181; 天津地质矿产研究所,天津,300170 |
| 摘 要： | 从矿物学、岩石学、地球化学等角度对大红峪组火山岩特征进行了详细研究,认为大红峪组火山岩为一套特殊的超钾质火山岩,形成于夭折的大陆裂谷环境,成岩物质来源于上地幔,同时混染了部分下地壳物质,这也是岩石富钾的原因. |
| 关 键 词： | 超钾质火山岩 幔源 混染 大红峪组 |
| 文章编号： | 1672-4135(2005)02-0100-06 |
| 修稿时间： | 2005-01-05 |
Petrological and Geochemical Research on Dahongyu Ultra-potassic Volcanic rocks in Dongzigou Area, Hebei Province |
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| DING Jian-hua, XIAO Cheng-dong, QIN Zheng-yong. Petrological and Geochemical Research on Dahongyu Ultra-potassic Volcanic rocks in Dongzigou Area, Hebei Province[J]. North China Geology, 2005, (2): 100-105. doi: 10.3969/j.issn.1672-4135.2005.02.006 | |
| Authors: | DING Jian-hua XIAO Cheng-dong QIN Zheng-yong |
| Affiliation: | DING Jian-hua1,XIAO Cheng-dong2,QIN Zheng-yong3 |
| Abstract: | Based on the study of the mineralogy, petrology and geochemistry, the author suggested that Dahongyu volcanic rock is a special ultra-potassic association. It formed in the continental rift setting that aborted shortly after the beginning. The rock-forming materials came from upper-mantle and contaminated the under crust material, which is also the reason of its high potassium. |
| Keywords: | ultra-potassic volcanic-rock mantle origin mantle-crust mixture Dahongyu Fm. |
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