逆掩断层

A simulation experiment on the quantitative relation between mudstone content in fault zone and vertical seal of overthrust was carried out. In addition, this paper analyzed the influence of deformation characteristics of rocks on vertical seal of fault.

在正确分析逆掩断层形成的地质条件和封闭机理的基础上，本文认为与逆掩断层相伴生的塑性岩石的变形特征、断面压力和断裂带中泥质含量是影响断层垂向封闭性的主要因素。

By the analysis and study of a special kind of overthrust fault occurred in the lower layer B 2 of B coal group in Furong Mine,a new method for quantitative prediction,the method of elevation difference value of relative bed interval,is presented.

通过对芙蓉煤矿B煤组下分层B2煤层中出现的一种特殊逆掩断层的分析和研究，提出了一种新的定量预测预报方法——相对层间距高差值法。

Firstly,we should discuss the definition of thrust belt,thrust fault,overthrust belt, reversed fault and overthrust fault and their differences,and then analyze the causes of formation and mechanisms as well as the tectonic background.

如何看待冲断带油气勘探，首先要讨论冲断带、冲断层、掩冲带、逆断层、逆掩断层的定义及其差异，然后分析冲断带的成因机制和形成的大地构造背景，冲断带油气勘探的兴衰历史。

Firstly,we should discuss the definiton of thrust belt ,thrust fault,over thrust belt ,reversed fault and overthrust fault and their differences,and then analyze the causes of formation and mechanisms as well as the tectonic background.

如何看待冲断带油气勘探，首先要讨论冲断带、冲断层、掩冲带、逆断层、逆掩断层的定义及其差异，然后分析冲断带的成因机制和形成的大地构造背景，冲断带油气勘探的兴衰历史。

In fault-developed block or in complicated overthrust structural area ,the strata being of various interval velocities may be in touch with each other or the same strata appear many times at the faults because of these factors as fault offset and formation fold, etc.

在断裂发育的断块区或复杂的逆掩构造区，由於断层错动及地层褶皱等因素，具有不同速度特徵的地层在断层处相互接触或同一套地层多次重复。

Firstly,we should discuss the definiton of thrust belt,thrust fault,overthrust belt, reversed fault and overthrust fault and their differences,and then analyze the causes of formation and mechanisms as well as the tectonic background.

如何看待冲断带油气勘探，首先要讨论冲断带、冲断层、掩冲带、逆断层、逆掩断层的定义及其差异，然后分析冲断带的成因机制和形成的大地构造背景，冲断带油气勘探的兴衰历史。

The linear valley with two lakes may be the site of a strike slip fault.

这个有两个湖泊的线型山谷可能就是逆掩断层和褶皱的作用点。

The result shows that the Haiyuan fault is an overlap fold-fault taking the shape of the shovel with depth less than 10 km,which bears no relation to occurrence of the 1920 Haiyuan earthquake because the focal depth of the earthquake is 15～20 km.

结果表明：海原断层实际是深度不超过10km的铲状逆掩推覆断层，而海原大震的震源深度为15～20km，因此，海原断层与该次大震的发生无关。

Based on the research of development characteristics of overthrust fault, its sealing mechanism is ana- lyzed. The evaluation standard and method for sealing ability of fault is established through the following two simulation experiment: one experiment is ,the quantitative relationship between property of filler in fault zone and sealing ability of fault , another experiment is the deformation characteristics of gymsum. By evaluating sealing ability of overthrust faults on several typical structure in Kuche ression,its considered that most cur- rent faults are sealed.

本文通过逆掩断层发育特征研究，分析了逆掩断层封闭机理，在断裂带填充物性质与断层封闭性定量关系模拟实验和膏泥岩变形特征模拟实验基础上建立了断层封闭性评价标准及评价方法，以此对库车坳陷几个典型构造上逆掩断层垂向封闭性进行了评价，结果表明现今断层多是封闭的。

Nitrogen injection being used to enhance oil recovery in many oilfields, particularly in over thrust fault .

许多油田，特别是在逆掩断层油藏中，正在大量注氮提高原油采收率。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。