中国地质调查2015，Vol.2Issue(4)：31-35,5.
四川省阿坝地区地表水地球化学特征
Characteristics of Hydrogen,Oxygen Isotopes and Trace Elements in Surface Water of Aba Area in Sichuan
摘要
Abstract
Aba is a region with high altitude,located in the northwest of Sichuan,and at the junction with Qing-hai and Gansu provinces.Aba is rich in surface water resources that the Yangtze River and Yellow River both flow across this area.Through systematically sampling the rivers water (76),wells water (7)and streams (8),and analyzing the contents of 18 O,D and trace elements in water,we revealed that ① The contents of D and 18 O in river water of Aba were significantly higher than streams,wells and tap water.Linear correlation analysis indica-ted that the enrichment of 18 O was closely related to the dissolution of sulfuric minerals;②There was obvious hy-draulic link among well water,tap water and streams in Aba;③In Aba,isotopic composition of oxygen and hy-drogen in river water of Yellow River system were closing to that of Yangtze River system,which was due to the same rainfall source at the same area;④The trace elements of surface water were quite close with the surrounding rocks,with the characteristics of high concentrations of Ba,Zn,Cr,and low concentrations of As,Pb,Cd, which indicated that the trace elements in surface water was mainly affected by the geological background.关键词
阿坝/地表水/氢同位素/氧同位素/微量元素Key words
Aba/surface water/hydrogen isotope/oxygen isotope/trace elements分类
天文与地球科学引用本文复制引用
施泽明,王新宇,倪师军..四川省阿坝地区地表水地球化学特征[J].中国地质调查,2015,2(4):31-35,5.基金项目
中国地质调查“四川阿坝州生态地球化学调查（编号∶1212011121156）”项目资助。 （）
