extensional fault

Sand Box Analog Models of Extensional Fault Systems

伸展断层系统的砂箱模拟实验

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The extensional fault systems are believed to be developed through the Cambrian, Ordovician, Early Silurian, Middle-Late Jurassic, and Paleogene.

伸展断裂系统发育于寒武纪、奥陶纪、早志留世、中-晚侏罗世和古近纪。

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In extensional tectonic stress field, there are paralleling and ring-radiating fault block modes.

在张性应力场中常见的断块模式有平行断块模式和环状一放射状断块模式.

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Based on volcanic activities and tectonic evolution, it is suggested that the tilted fault block, sliding structures in extensional setting should be developed in Cretaceous to Cenozoic age.

结合区域火山活动和构造演化认为，该滑动构造为伸展背景下的掀斜断块型，其滑动时间为白垩纪&新生代。

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It is suggested that in the Cenozoic extensional deformation region of North China, the effect of neotectonics especially active fault on the mine safety production should be paid much more attention to.

在华北新生代伸展变形区，新构造，尤其是活动断裂对矿井安全生产的影响应引起充分的重视。

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In extensional fault, there are a lot of fluid inclusions with bigger size of grains and wider range ratio of vapor to liquid.

张性断裂流体包裹体数量多，粒径大，气液比变化范围大，常伴随出现沸腾包裹体群；

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However, the extensional fault which had strong activities in the Eocene or even in the Paleocene, become non-activity from Neogene to Quaternary.

而盆地区的伸展断层则在始新世甚至古新世就有强烈的活动，而在新近纪一第四纪时期基本不活动。

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The early extensional fault controlled the structure systems, forming a series of compound structures of horst and graben and sedimentary facies in which many early sedimentary characters on slope, such as glide deformation and clastic flow can be seen.

早期伸展断层控制了同期的构造和沉积特征，形成一系列复式地垒和地堑的结构，在斜坡带见滑动变形、碎屑流等构造现象。

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Fault chronology and sedimentation of the downfaulted basins indicate that extensional deformation in the study region was initiated in the late Miocene to early Pliocene at least, which has had a marked controlling effect on the present geomorphologic framework and drainage pattern in the region.

断层年代学和断陷盆地沉积作用研究结果表明，研究区伸展变形至少自中新世末&上新世初就已开始，对长江源地区现今的地貌格局、水系型式具有显著的制约作用。

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Forming during Yanshanian period and influenced by the basement tectonics, the main structure styles in the research area are subdivided into three types& compressive fault block, extensional fault block, and thrust fold.

研究区主要的构造样式是在燕山期形成的，但也受到了基底构造的直接影响，所以比较复杂。其构造样式可以分为挤压块断、伸展断块、逆冲褶皱三种基本类型。

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Subsidence curve of the intercontinental foreland basins consists of two sections which are different from extensional fault depressions, the first section is a gentle curve of total subsidence and tectonic subsidence;

先缓后陡的两段式沉降曲线；

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