窗棂构造与挤压带

MULLION STRUCTURE IN COMPRESSION ZONE

线理在岩石变形强烈地段的地质构造研究中越来越引起人们的重视。窗棂构造作为变形强烈岩石中发育的一种粗大线理,在国内外地质文献中多有报导,并列为构造地质学专著中线理的重要组成内容。E.霍尔(Hull)等在1891年就曾描述过此种构造。以后对类似的构造曾与杆状构造相混淆。G.威尔逊(wilson.1953)首先将两者加以区别:窗棂构造限定于由原岩本身形成的,而杆状构造则多是由分离物质或注入物质所构成。G.威尔逊将窗棂构造分为褶皱式或层理式、劈理式和不规则式窗棂构造,并认为。

\s a gross lincation in strongly deformed rocks, the mullion structure has got more and more attention.In articles they are commonly described as a lineation related to the fold structure, and generally, considered to be b-axis structure.Mullion structures related to the compression zone are different from the above-mentioned ones. They are found in existence by the side of and inside the compression zone, their axes run parallel to the extension of the compression zone. Thus, it can be used as an important criterion to identify the existence of compression-fracture zones or compression structures.