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| 云南个旧拉丁尼克期玄武岩地球化学特征及其大地构造背景 | |
| 引用本文： | 黎应书,秦德先,邹滔,贾福聚,万朝英,孙彩霞,周年胜.云南个旧拉丁尼克期玄武岩地球化学特征及其大地构造背景[J].吉林大学学报(地球科学版),2008,38(4). |
| 作者姓名： | 黎应书 秦德先 邹滔 贾福聚 万朝英 孙彩霞 周年胜 |
| 作者单位： | 1. 昆明理工大学,国土资源工程学院,昆明,650093 2. 水城钢铁公司,机动处,贵州,六盘水,553028 3. 云南楚雄矿冶股份有限公司,云南,楚雄,675000 4. 广州天高集团公司,广州,510635 |
| 摘 要： | 个旧地区拉丁尼克期火山岩的地质、地球化学特征研究表明:该期玄武岩的岩石类型为杏仁状斑状纤闪石化玄武岩,属于硅不饱和、富碱、高钛,镁、铁偏高,铝偏低,具有大陆碱性橄榄玄武岩的组分特征.该玄武岩为陆内拉张环境下基性程度高、分异程度低的幔源岩浆分异的产物,形成于大陆板内裂谷环境,并与拉裂作用有关. |
| 关 键 词： | 拉丁尼克期玄武岩 大地构造 云南个旧 |
Geochemistrical Features and Tectonic Settings of Ladinian Basalts in Gejiu, Yunnan Province |
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| LI Ying-shu,QIN De-xian,ZOU Tao,JIA Fu-ju,WAN Chao-ying,SUN Cai-xia,ZHOU Nian-sheng.Geochemistrical Features and Tectonic Settings of Ladinian Basalts in Gejiu, Yunnan Province[J].Journal of Jilin Unviersity:Earth Science Edition,2008,38(4). | |
| Authors: | LI Ying-shu QIN De-xian ZOU Tao JIA Fu-ju WAN Chao-ying SUN Cai-xia ZHOU Nian-sheng |
| Abstract: | Study on geology,geochemistry of the Ladinian basalts in Gejiu,Yunnan Province indicates that these basalts are of blastoamygdaloidal structure and belong to olivineous alkali-basalts and they are of features of unsaturated silicon,of abundant alkali,magnesium and iron and of excessive titanium and low aluminium.The basalts came from high basic magmas of mantle derivation and were formed by low degree of differentiation under a general extension setting in a rift. |
| Keywords: | Ladinian basalt tectonic setting Gejiu of Yunnan Province |
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