The main ore-bearing country rocks are aregillaceous limestone and marmarization limestone of upper-middle Cambrian.

其中寒武系上、中统大理岩化灰岩、泥质灰岩为主要含矿围岩。

The zimenqiao Formation silicolites of Lower Carboniferous is the country rock of Changkeng Au-Ag deposit.

下石炭统梓门桥组硅质岩是粤西长坑金银矿床的直接容矿岩石。