甘肃东部温泉中稀有气体及微量组分与构造活动的关系

THE RELATION BETWEEN THE CONTENTS OF RARE-GASES AND TRACE-ELEMENTS IN HOT SPRINGS AND TECTONIC ACTIVITIES IN THE EASTERN GANSU PROVINCE

摘要:

本文采集并分析了甘肃东部地区9个温泉的化学成分及热焓分布,分别讨论了氦及其同位素比值He³/He⁴、微量元素组分F^-、Cl^-、Li⁺的含量以及He⁴/Ar⁴⁰值的变化。上述各项指标在秦安地区出现了同步异常。最后,应用因子分析方法综合分析了变量与样品的信息变化,结果表明在秦安-清水-带可能有一隐伏断裂,并伴有岩浆挤入。

Abstract:

Nine samples of hot springs covering the eastern region of Gansu Province are collected and analysed.The measured components include He,He³/He⁴,F^-,Cl^-,Li⁺,He⁴/Ar⁴⁰ etc..These items present synchronous anomalies in Qin'an region.Finally,by using a method of factor analysis,the information variation of the samples and components is comprehensively analysed.The result shows that it is possible to exist a buried fault in company with magmatic intrusion in Qin'an-Qingshui region.