石油与天然气地质 ›› 2003, Vol. 24 ›› Issue (1): 24-27.doi: 10.11743/ogg20030105

• 油气空间 • 上一篇    下一篇

徐家围子断陷火山岩赋存型式及意义

程日辉1, 刘万洙1, 王璞珺1, 单玄龙1, 陈树民2, 曲永保2   

  1. 1. 吉林大学地球科学学院, 吉林长春, 130061;
    2. 大庆油田股份有限公司, 黑龙江大庆, 163712
  • 收稿日期:2002-09-25 出版日期:2003-03-25 发布日期:2012-01-16
  • 基金项目:

    国家自然科学基金项目(49672124及4984190-13)资助

OCCURRENCES OF VOLCANIC ROCKS IN XUJIAWEIZI FAULT-DEPRESSION AND THEIR SIGNIFICANCE

Cheng Rihui1, Liu Wanzhu1, Shan Xuanlong1, Chen Shuming1, Qu Yongbao2   

  1. 1. College of Earth Sciences, Jilin University, Changchun, Jilin;
    2. Daqing Oilfield Company, CNPC, Daqing, Heilongjiang
  • Received:2002-09-25 Online:2003-03-25 Published:2012-01-16

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摘要：

晚侏罗世-早白垩世是松辽盆地徐家围子断陷火山岩喷发的主要时期,其赋存型式具有一定的几何学特征,根据火山岩喷发的构造位置与其在盆地内赋存的几何学样式,可以识别出火山岩在上升盘喷发、沿断裂带喷发和在下降盘喷发3种赋存型式。不同的赋存型式往往对应不同的盆地单元构造样式,沿断裂面赋存的火山岩向盆地逐渐过渡为湖底扇-浊积扇;赋存于上升盘的火山岩则与沉积岩互层分布;下降盘赋存的火山岩多被细粒沉积物所覆盖。

关键词: 火山岩, 断裂, 赋存型式, 盆地充填, 松辽盆地

Abstract:

The volcanic rocks in Xujiaweizi fault-depression, Songliao basin,was mainly erupted in Late Jurassic to Early Cretaceous.Their occurences are characterized by a certain geometric pattern.On the basis of the structural position of volcanic eruption and the occurrences in the basin, three types of eruption have been identified, including eruption on the upthrown side of fault, along fracture belt and on downthrown side. Different occurrences are often corresponding to different basin structures. The volcanic rocks occurring along fault plane would transit gradually to sublacustrine fan—turbidite fan; the volcanic rocks occurring on the upthrown side of fault would distribute in the manner of alternating beds of volcanic rocks and sandstones; the volcanic rocks occurring on the downthrown side have mostly been covered by fine grain sediments.

Key words: volcanic rock, fault, occurences, basin filling, Songliao basin

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