| 廊固凹陷下第三系层序地层及构造演化 |
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| 引用本文： | 鲜强,李仲东,傅恒,宋荣彩,郑敬贵.廊固凹陷下第三系层序地层及构造演化[J].物探化探计算技术,2007,29(3):244-248. |
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| 作者姓名： | 鲜强 李仲东 傅恒 宋荣彩 郑敬贵 |
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| 作者单位： | 成都理工大学,能源学院,成都,610059 |
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| 摘 要： | 廊固凹陷已进入“成熟”盆地勘探阶段,为进一步拓展油气勘探的新领域,利用层序地层学理论对凹陷进行整体研究,并为隐蔽油气藏勘探打下铺垫。综合对地震、岩心、测井及古生物等资料的分析,将凹陷下第三系划分为三个二级层序,11个三级层序。断陷盆地,二级层序发育的主控因素是构造沉降,构造沉降和气候控制了三级层序的发育。三级层序SQ1-SQ3发育时期为断陷初始期,SQ4-SQ7为强烈断陷期,SQ8-SQ11为断陷回返及消亡期。
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| 关 键 词： | 廊固凹陷 层序地层 构造演化 断陷盆地 |
| 文章编号： | 1001-1749(2007)03-0244-05 |
| 修稿时间： | 01 23 2006 12:00AM |
Sequence stratigraphy and structural sequence evolvement of Langgu depression in lower tertiary |
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| XIAN Qiang,LI Zhong-dong,FU Heng,et al..Sequence stratigraphy and structural sequence evolvement of Langgu depression in lower tertiary[J].Computing Techniques For Geophysical and Geochemical Exploration,2007,29(3):244-248. |
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| Authors: | XIAN Qiang LI Zhong-dong FU Heng |
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| Abstract: | Langgu depression has been to a mature period of basin exploration.In order to expand new region of oil exploration,sequence stratigraphy are used to study the depression and forecast oil exploration.Lower tertiary strata of Langgu depression are divided into 3 second-order sequences and 11 third-order sequences after data analysis of seismology,lithology,well logging,paleontology etc..Structure evolution dominated the evolvement of sequence-filling succession and structural activity controlled supersequence.Structural activity and weather controlled three order sequences.SQ1-SQ3 deposited at the beginning time of rifting.When depression rift intensely,SQ4-SQ7 deposited.SQ8-SQ11 deposited at the disappearing time of rifting. |
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| Keywords: | Langgu depression sequence stratigraphy structure evolution continental rift-subsidence bansin |
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