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本文重点讨论了凤城县吕家堡子铅锌矿区变形方解石大理岩的超微构造特征。总结出不同构造部位具有不同的超微构造特征。该矿区主要经?过三期变形作用。第一期低温(<300°C±)高应变,产生走向褶皱。局部高温(400—600°C)低应变,产生翼部小褶皱(小走向褶皱);第二期高温(600℃±)低应变,产生倾向褶皱;第三期低温高应变,产生脆性与断裂构造。
This article focuses on the ultrafine structural features of deformed calcite marble in the Lujiapuzi Pb-Zn deposit in Fengcheng County. It is concluded that different tectonic parts have different ultrastructural features. The mining area has been the main effect of three deformation. The first phase of low temperature (<300 ° C ±) high strain, resulting in wrinkles. Local high temperature (400-600 ° C) low strain, resulting in wing small fold (small to fold); the second high temperature (600 ℃ ±) low strain, prone to folds; the third low temperature and high strain, resulting in brittle and fracture structure.