Vulnerability is controlled by the groundwater flow system and geochemicalsystem and can be assessed with the subjective index method, statistical or process-based method and integrated method.
其主要评价方法有主观分级评价法、统计或基于过程的评价法和综合评价法三大类。
2
Through the study on the regional distribution of 41 kinds of elements in rocks from Liaoning, the author put forward a geochemical zoning system for rocks from Liaoning.
通过对辽宁区域岩石41种元素的区域分布研究，作者提出了辽宁岩石元素地球化学分区系统。
3
Structures of the formations and the character of geochemistry played a crucial role in the forming of thermal field of compaction fluid system, dynamic field and geochemical field and mineralization.