| 三塘湖盆地卡拉岗组火山岩岩石化学特征及构造环境 |
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| 引用本文： | 梁浩,苟红光.三塘湖盆地卡拉岗组火山岩岩石化学特征及构造环境[J].西安石油大学学报(自然科学版),2009,24(5). |
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| 作者姓名： | 梁浩 苟红光 |
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| 作者单位： | 1. 中国地质大学(武汉)资源学院,湖北,武汉,430074
2. 中国石油吐哈油田分公司,勘探开发研究院,新疆,哈密,839009 |
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| 基金项目： | 中国石油天然气股份有限公司科技研发项目 |
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| 摘 要： | 从钻井、薄片鉴定和化学分析入手,深入研究三塘湖盆地卡拉岗组火山岩的岩石类型、发育规律、化学成分特征.卡拉岗组火山岩以中基性的玄武岩、安山岩为主,化学成分以"高铝、低镁、低钾"为特征,属亚碱性系列中的钙碱性火山岩,FeO减少和Fe2O3富集的相对变化关系为卡拉岗组风化壳储层提供了理论依据.综合运用多种方法确定卡拉岗组火山岩形成于火山岛弧建造环境.
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| 关 键 词： | 卡拉岗组 马朗凹陷 钙碱性 火山岩 地化特征 构造环境 |
Petrochemical characteristics and structural environment of the volcanic rock of Kalagang Formation in Santanghu Basin |
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| LIANG Hao,GOU Hong-guang.Petrochemical characteristics and structural environment of the volcanic rock of Kalagang Formation in Santanghu Basin[J].Journal of Xian Shiyou University,2009,24(5). |
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| Authors: | LIANG Hao GOU Hong-guang |
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| Abstract: | The rock types,development law and chemical components of the volcanic rock in the studied area are deeply studied for drilling data,thin-section identification and chemical analysis.It is shown that the volcanic rock is mainly composed of basalt and andesite,the chemical components of it are characterized by high content of aluminum,low content of magnesium and low content of potassium.The volcanic rock belongs to the calc-alkaline volcanic rocks of subalkalic series.The characteristics of FeO reduction and Fe2O3 enrichment provide the theoretical basis for the weathering crust reservoir of Kalagang Formation.It is determined that the volcanic rock is formed in the environment of volcanic island arc through many methods,which provides the reference for the study on the structural setting,evolution history and lithofacies paleogeography of Santanghu Basin. |
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| Keywords: | Kalagang Formation Malang Sag volcanic rock geochemical characteristic structural environment |
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