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Structural anisotropy: Using image analysis to quantify block-in-matrix fabrics
Journal of Structural Geology ( IF 3.1 ) Pub Date : 2020-02-01 , DOI: 10.1016/j.jsg.2019.103939
Alexander P. Clarke , Paola Vannucchi

Abstract Block-in-matrix rock assemblages — such as melanges — are structurally complex units whose fabric is primarily defined, not by planar or linear features as most rock units are, but by the orientation and aspect ratio of irregularly shaped blocks. Despite this, previous attempts to quantitatively characterize melange fabrics have predominantly focused on measuring the foliation using traditional techniques. Here we introduce a method of characterizing block-in-matrix fabrics using image analysis of field photos to discern the aspect ratios and orientations of blocks and define the structural anisotropy of the rock unit. We also include the software to calculate structural anisotropy and the trend of the fabric from image analysis data.

中文翻译:

结构各向异性:使用图像分析来量化矩阵中的块状织物

摘要 基体块体岩石组合——例如混杂岩——是结构复杂的单元,其结构主要由平面或线性特征定义,而不是像大多数岩石单元那样由平面或线性特征定义,而是由不规则形状块的方向和纵横比定义。尽管如此,之前对混色织物进行定量表征的尝试主要集中在使用传统技术测量叶面。在这里,我们介绍了一种使用现场照片的图像分析来表征块体矩阵结构的方法,以识别块体的纵横比和方向,并定义岩石单元的结构各向异性。我们还包括从图像分析数据计算结构各向异性和织物趋势的软件。
更新日期:2020-02-01
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