基于Matlab的断裂带温泉水地球化学特征及地震活动性研究  

Research on Geochemical Characteristic of Hot Spring Water and Seismicity in Fault Zone Based on MATLAB

作　　者：伍剑波[1] 张慧[1,2] 苏鹤军[1,2] 李晨桦[1,2] 

机构地区：[1]中国地震局兰州地震研究所,甘肃兰州730000 [2]中国地震局地震预测研究所兰州科技创新基地,甘肃兰州730000

出　　处：《地震工程学报》2013年第2期354-359,共6页China Earthquake Engineering Journal

基　　金：地震科技星火计划项目(XH12048)

摘　　要：基于Matlab开发出地下流体分析软件,对比分析了甘肃西秦岭北缘的武山、街子和清水温泉水化学组分特征;初步分析了温泉水水质类型、补给来源、水—岩平衡状态以及循环深度,并讨论了温泉水深循环对地震活动性的影响。研究表明温泉水均为大气降水成因,其水化特征受围岩的控制作用;清水温泉水的成熟度没有武山和街子温泉水高。地下水循环深度较浅的武山温泉和街子温泉水化类型属于Na-HCO3.SO4.Cl,所处断裂的地震活动频繁;地下水循环深度较深的清水温泉水化类型属于Na-SO4.Cl,所处断裂的地震活动性弱。The Matlab high-performance language for technical computing integrates computation,visualization,and programming in an easy-to-use environment where problems and solutions are expressed in familiar mathematical notation.It allows you to solve many technical computing problems,especially those with matrix and vector formulations,in a fraction of the time it would take to write a program in a scalar noninteractive language.The Matlab had a important application in seismic studies,such as,the ZMAP software used for scanning b value and application of Matlab software on intensity rapid report of Tianjin strong mation network.Authors developed the analysis software of the subsurface fluid based on Matlab,which combined with the function of some other geochemical software.This paper mainly discussed the water quality analysis by means of the software,and studied on the spring water in the north margin of western QinLing fault zone and comparatively analyzed the chemical composition characteristics of hot spring water in Wushan,Jiezi and Qingshui.In this paper,the types,water qualities,supply sources,the state of water-rock reaction and circulation depth of the water were discussed.And the paper analyzed that the circulation depth of hot spring water impacted on the seismicity of fault zone.In this paper,we drew the linear correlation diagram of δD and δ18O of hot spring water samples in the north margin of western Qinling fault zone.By the composition analysis of Hydrogen and Oxygen isotopes,it was showed that the supply sources of the water in three springs are precipitation and the isotope exchange effects caused positive shift of the 18O.Based on Rectangle hydrochemical diagram,it was the results that the hot spring water in Wushan and Jiezi was belonged to Na-HCO3·SO4·Cl and carbonated water of hydrochemical type,but the water in the Qingshui hot spring was belonged to Na-SO4·Cl and sulfuric water of hydrochemical type.In overall,three hot springs was the type of low salinity water.Because the different react

关 键 词：断裂带 温泉水 水质分析 循环深度 地震活动 MATLAB 

分 类 号：P315.723[天文地球—地震学]