热带地理2012，Vol.32Issue(4)：364-369,6.
珠江三角洲区域地壳稳定性评价
Evaluation of Regional Crustal Stability of the Pearl River Delta
摘要
Abstract
After a comprehensive analysis of faults, earthquake, crust movement and rock types and even the thickness of quaternary sediments, the authors give out a prediction of stability of the crust in the Pearl River Delta. In order to increase the resolution of the model, a spatial analysis module in GIS is employed to build up the possible intensity of the influences of faults and earthquakes on crustal stability and reduce the difficulty of processing linear factors in spatial frame. LM algorithm is also applied to train BP neural network and establish the evaluation model for the crustal stability in the studied region. It is shown that the area of stable zone is slightly larger than that of the unstable one, accounting for 54% and 46% respectively, and the unstable zone is constrained in a band-shaped area, which is controlled by the observed fault zone in the studied region.关键词
区域地壳稳定性/GIS/BP神经网络/LM算法/珠江三角洲Key words
regional crustal stability/ GIS/ backpropagation artificial neural networks/ levenberg-marquardtalgorithm/ the Pearl River Delta分类
天文与地球科学引用本文复制引用
张志强,詹美珍,詹文欢,姚衍桃,孙杰..珠江三角洲区域地壳稳定性评价[J].热带地理,2012,32(4):364-369,6.基金项目
国家自然科学基金委与广东省联合基金项目(U0933006) （U0933006）
