regional geological map meaning in English

区地质图
区域地质图

The patch , cor - ridor , matrix , edge are the main elements according to remote sensing information and material from regional geological mapping in headstream region ， and based on the spatial structure features of soil erosion on three scales
根据黄河河源区地质调查所获实际资料和遥感影象信息，从3个不同的等级层次对河源水土流失的空间结构特征进行了研究。
In the 1 : 250000 regional geological mapping of yumenzhen , the two different characteristics , depth and different styles assemblage ductile deformation was found in pianshishan in yumenzhen area in late paleozoic and mesozoic
在玉门镇幅1 / 250000的区域地质调查中，发现三危山断裂带东段一甘肃省玉门镇片石山一带存在着早古生代和晚古生代两期不同性质、不同层次、不同构造组合样式的韧性变形。