成因分类 meaning in English

genetic classification

The land use genesis classification of karst rockification
石漠化土地利用成因分类
Genesis types of low - permeability jurassic sandstone reservoirs and prediction of favorable reservoirs in qiangtang basin
羌塘盆地侏罗系低渗透砂岩储层成因分类及有利储层预测
Three main types and seven subtypes are genetically classified for the gold deposits at the northern margin of north china platform
该文对华北地块北缘的金矿进行了成因分类，共分为3大类7亚类。
According to the genetic classification , fracture system can be classified as follow : structure fracture , regional fracture and shrinkage fracture
裂缝系统按其成因分类可分为：剪裂缝、扩张裂缝和拉张裂缝。按地质分类可分为：构造裂缝、区域裂缝、收缩裂缝。
Pe trologists , both at home and abroad have spent a lot of time on the classification of pyroclastic rocks , and successively put forward the classification of pyroclasts , the petrographic and the petrogenetic classification of pyroclasic rocks
长期以来，火山碎屑岩的分类研究受到了国内外学者的重视，先后提出了火山碎屑物、火山碎屑岩岩性和火山碎屑岩成因分类。