zonation

1.quartz grains can exhibit zonation and rounding.

英砂具有显示圆的特性。

2.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低硫化型,且都具有典型的围岩蚀、蚀分等床特征。

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.

构造破碎的岩具有明显的对称分性：破碎的中心为钠体，向两侧依次为榍透辉长英岩、黑云母钠长岩，并逐渐过渡为围岩。钠的因类型为沿构造破碎产出的热液交代脉型。

4.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.

韧性剪切内构造岩、围岩蚀分明显,并具有典型的“(超)糜棱岩—英、黄铁、铁白云化—金化”等“三位一体”特征。