As indicated by cast thin section and ESM study, solution pores developed mainly in hornfels and fracture systems come to be the next.

• 论述了溶蚀作用在深埋期进行，溶质来自生油岩的有机酸和碳酸，角岩中不稳定的铝硅酸盐和碳酸盐矿物是产生溶孔的物质基础。