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Ductile shear strain in banded metamorphic strata. Conjugate slip displacement and porphyroclast rotation under lithostatic overburden pressure (糜棱岩带中的剪切构造与碎斑旋转).
Beneath the ash terrace, the substrate forgets its crystalline grain and begins to flow. 压力把浅层的松散矿物压实为平行条带，又在共轭滑移带间搓碾出不对称的眼状残斑 (σ-clasts). Here the garden is not growing upward, but smearing horizontally along deep lithostatic planes.
Attempted to model S-C mylonitic foliation and porphyroclast mantle rotation without introducing divergence artifacts into the strain field. By coupling hyperbolic shear streamfunctions with rigid elliptical clast drag, the density variance remained exceptionally flat (0.00095) while sustaining high rotational vorticity. 碎斑两翼的拖尾羽翼 (pressure shadows) 在离散字形过渡中保持了连续性，没有发生晶格撕裂。