摘要
松辽盆地北部断陷断裂分布呈现了东西分带、南北分块的构造特征，深层具有两隆三凹一斜坡的构造格局。在解释和分析大量的地震剖面的基础上，从断陷的形成和演化角度出发，建立起两种形成模式和两种类型四种演化模式。形成模式：箕状断陷、双断式断陷。两种类型四种演化模式：一种类型为发展型，包括加强式、扩展式；另一种类型为改造型，包括掀斜式、隆起式。松辽盆地北部断陷呈现幕式演化特征，整个演化过程可划分：初始张裂阶段、扩张阶段、萎缩阶段。
The distribution of fault depression and
fault in the northern Songliao Basin is seen in zonal arragemeng on WE direction and in blocky
on NS direction. Deep structures show two more tracks, three fault depression tracks and one
incline in the tectonic framework based on the formation and evolution of fault depression, two
fault depression formation patterns and four evolution patterns are established by explaining
and analyzing plenty of seismic profiles. The formation patterns include single fault depression
and double fault depression. The evolution pattern include two types, one is developed type
including strengthened pattern and expanded pattern, and another is modified type including
titled pattern and upwelling denotation pattern. The fault depressions in the northern Songliao
Basin have the characteristics of episodic evolution, and the whole evolution process of them
can be divided into initial tension fracture stage, expanding stage and atrophy stage.
出处
《石油学报》
EI
CAS
CSCD
北大核心
1999年第4期14-18,共5页
Acta Petrolei Sinica
关键词
松辽盆地
断陷盆地
构造特征
幕式演化
Songliao Basin
fault depression
tectonic characteristics
episodic evolution
fault
depression pattern
