zonation

1.They can be divided into low sulphidation and high sulphidation types,with typical wall rock altera tion and alteration zonation of epit hermal de-posit.

这些床可分为高硫化型和低硫化型,有典型的围岩蚀变、蚀变分带等床特征。

2.In the ductile shear belt,the alteration and zonation of tectonite and wall rock are obviously,and miliolite belt,quartz,iron pyrite,ankerite alteration belt and gold mineralization belt are trinity.

韧性剪切带内造岩、围岩蚀变分带明显,并有典型的“(超)糜棱岩—石英、黄、白云石化—金化”等“三位一体”成特征。

3.There is an obvious rock zonation from the middle to bothsides of the structural shatter zone, generally from marialite orebody through diopside-felsite,biotite-albitite to the host Proterozoic rocks.

造破碎带的岩石有明显的对称分带性：破碎带的中心为钠柱石体，向两侧依次为榍石透辉石长英岩带、黑云母钠长岩带，并逐渐过渡为围岩。钠柱石的成因类型为沿造破碎带产出的热液交代脉型。