| 新疆尼勒克县喀什河北部地区阿克塔什组火山岩成因 |
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| 引用本文： | 冷成彪,李永军,李景宏,郭文杰,李注苍,刘静.新疆尼勒克县喀什河北部地区阿克塔什组火山岩成因[J].新疆地质,2006,24(1):4-8. |
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| 作者姓名： | 冷成彪 李永军 李景宏 郭文杰 李注苍 刘静 |
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| 作者单位： | 1. 长安大学地球科学与国土资源学院,陕西,西安,710054
2. 新疆维吾尔自治区地质矿产勘查开发局第九地质大队,新疆,乌鲁木齐,830000 |
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| 基金项目： | 新疆地质矿产局“新疆新源县托库孜库马拉克一带1∶5万区域地质矿产调查”项目(XJQDW2003-07)资助 |
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| 摘 要： | 分布在尼勒克县喀什河北部一带的阿克塔什组火山岩归属博罗霍洛山地层小区.通过对该组火山岩的岩石学、岩石化学和元素地球化学研究,确认该火山岩为中性-酸性熔岩及同质凝灰岩,属钙碱性系列,且高钾富铝.其岩石化学及地球化学显示岛弧火山岩特征.综合分析,本区在中泥盆世处于汇聚板块一侧的岛弧及弧后盆地.阿克塔什组火山岩的构造环境信息为本区构造演化提供了重要佐证.
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| 关 键 词： | 新疆 尼勒克县 火山岩 成因及构造环境 阿克塔什组 |
| 文章编号： | 1000-8845(2006)01-004-05 |
| 收稿时间： | 09 26 2005 12:00AM |
| 修稿时间： | 10 11 2005 12:00AM |
PETROGENESIS OF THE AKETESHI VOLCANIC ROCKS FROM NORTH OF THE KASHI RIVER, NILEKE COUNTY, XINJIANG |
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| LENG Cheng-biao,LI Yong-jun,LI Jing-hong,GUO wen-jie,LI Zhu-cang,LIU jing.PETROGENESIS OF THE AKETESHI VOLCANIC ROCKS FROM NORTH OF THE KASHI RIVER, NILEKE COUNTY, XINJIANG[J].Xinjiang Geology,2006,24(1):4-8. |
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| Authors: | LENG Cheng-biao LI Yong-jun LI Jing-hong GUO wen-jie LI Zhu-cang LIU jing |
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| Abstract: | The Aketeshi Formation volcanic rocks of the Boluohuoluo stratigraphic group outcrop on the north side of the Kashi River in Nileke County in Xinjiang.Detailed studies of the petrography,petrochemistry and geochemistry,indicate these volcanic rocks have high contents of aluminum and potassium and are intermediate to acid lavas and homoplasmic tuffs.The volcanic rocks belong to the cal-alkaline series and petrochemistry and geochemistry show characteristics of island arc volcanic rocks.This area was in an arc and rear-arc basin on convergent plates in the Middle Devonian.The tectonic environment of the Aktashi Formation volcanic rocks offers important evidence for the tectonic evolution of this area. |
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| Keywords: | Xinjiang Nileke County Volcanic rock Petrogenesis and tectonic environment Aketashi formation |
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