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岩石磁化率椭球体的三个轴与应变椭球体的三个轴方向相平行 ,并具有一定的共构关系。变形岩石的磁组构参数 P、T、F、L以及磁化率椭球体主张量方向等可以用来定量地表征岩石变形的性状及期次。本文通过实测和计算 2 7个样品的磁组构参数 ,研究了博白 -合浦断裂带的变形性状与期次 ,结果表明 :博白 -合浦断裂带大致经历了三期构造变形作用 ,不同时期具不同性质的构造变形。变形性状分别表现为韧性、韧 -脆性及脆性变形 ,应变行为分别表现为平面、非平面和线性应变。
The three axes of the rock susceptibility ellipsoid are parallel to the three axes of the strain ellipsoid and have a certain co-construction relationship. The magnetic parameters P, T, F and L of the deformed rock and the orientation of the susceptibility ellipsoid can be used to quantitatively characterize the deformation and period of the rock. In this paper, by means of measuring and calculating the magnetic structure parameters of 27 samples, the deformation character and period of the Bobai-Hepu fault zone have been studied. The results show that the Bobai-Hepu fault zone has undergone three stages of tectonic deformation in different periods Structural deformation with different properties. Deformation traits show toughness, ductile-brittleness and brittle deformation respectively. Strain behavior shows flat, non-flat and linear strain respectively.