There are intensive structural and magmatic hydrothermal movement with obvious zonal surface shape alterations , which are demonstrated by silicified function , sericitization , potassium , epidotization , hornstone , etc . the ore structural fabric mainly behaves in form of filling action with minerals such as pyrite , chalcopyrite , salenite , blende and electrum , which typomorphic feature shows a hypothermal pattern of metallogeny
परिभाषा
a fine-grained metamorphic rock formed by the action of heat on clay rocks पर्याय: hornfels,
मोबाइल