中国区域地壳稳定性编图研究

中国区域地壳稳定性评价图,是根据“安全岛”理论,采用网络划分,逐层应用模糊综合评判和图象识别,以及区域地壳稳定性评价专家系统的步骤和方法编制完成的。该图预测评价的极不稳定区和极次不稳定区,已被近期在中国云南孟连、甘肃永登两地分别发生的中、强地震震中定位所证实。因此,介绍区域地壳稳定性评价的定量化编图理论和方法以及它在实际应用中的作用和意义,即是本文阐述的重点内容。

A NOTE ON THE COMPILATION OF MAP OF CRUSTAL STABILITY ZONATION IN CHINA

Following the idea of "Safety Island" the crustal stability zonation map of China (1:5000000)is first compiled on a grid basis in different steps using fuzzy synthetic judgement, image recognition and an expert appraisal system.
A strong earthquake and another moderately strong shock have recently been reported to occur in Menglian county of Yunnan province and Yongdeng county of Gansu province indicated as unstable and fairly unstable regions on the map. It is therefore emphasized that a tentative quantification of the evaluation of regional crustal stability proves significant in practical applications.