地球物理-老徐分享 http://blog.sciencenet.cn/u/xwl0765 David.Xu

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Thrust Fault 与Reverse Fault的区别

已有 8617 次阅读 2012-10-16 21:12 |个人分类:地质学科|系统分类:教学心得|关键词:学者| fault, Thrust, 与Reverse, Fault的区别

reverse fault--->逆断层(断层面倾角大于45度)

A type of fault formed when the hanging wall fault block moves up along a fault surface relative to the footwall. Such movement can occur in areas where the Earth's crust is compressed. A thrust fault, sometimes called an overthrust if the displacement is particularly great, is a reverse fault in which the fault plane has a shallow dip, typically much less than 45o.

thrust fault--->逆冲断层(断层面倾角小于45度)

A type of reverse fault in which the fault plane has a very shallow dip, typically much less than 45o. The hanging wall fault block moves up the fault surface relative to the footwall. In cases of considerable lateral movement, the fault is described as an overthrust fault(逆掩断层)(即推覆构造). Thrust faults can occur in areas of compression of the Earth's crust.
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这个图片很形象,逆断层应该包括逆冲断层的,版主把逆断层定义为>45°,不太合适吧 ,

构造地质学上逆断层分法如下
逆断层:
1.高角度逆断层>45°
2.低角度逆断层<45°(一般30°)
    2.1 逆冲断层(位移距离大的)
        2.1.1 推覆构造(5km)
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陆克政主编的《构造地质学》上讲:推移距离在10km以上倾角极其平缓的巨大逆掩断层就称之为推覆构造、推覆体、辗掩构造



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