CAJ | 학술논문

应用环境同位素方法对西安凹陷中南部深层和浅层地下热水补给进行研究，结果显示，西安凹陷中南部浅层地热水样点主要分布在大气降水线附近，个别点发生δ18 O漂移，表明其接受来自秦岭北麓现代降水和古降水的混合补给，深层地热水氚含量小于1 TU ，14C测年平均在两万年以上，表明其接受秦岭北麓全新世前古降水补给；深、浅层地下热水接受补给的方向为西南方向，补给高程为839～1746 m ；深层（热水埋深为1000～4000 m ）、浅层（热水埋深小于1000 m ）地下热水接受补给时的年平均温度为0．69℃，补给环境为孔隙裂隙型地下热水系统。
응용배경동위소방법대서안요함중남부심층화천층지하열수보급진행연구，결과현시，서안요함중남부천층지열수양점주요분포재대기강수선부근，개별점발생δ18 O표이，표명기접수래자진령북록현대강수화고강수적혼합보급，심층지열수천함량소우1 TU ，14C측년평균재량만년이상，표명기접수진령북록전신세전고강수보급；심、천층지하열수접수보급적방향위서남방향，보급고정위839～1746 m ；심층（열수매심위1000～4000 m ）、천층（열수매심소우1000 m ）지하열수접수보급시적년평균온도위0．69℃，보급배경위공극렬극형지하열수계통。
The supply of Xi’ an depression southern abdominal deep and shallow under-ground hot water was studied with environment isotope method ,the results showed that Xi’an depression abdominal shallow geothermal water points were mainly distributed near the line of atmospheric precipitation ,only two points had diverged ,meaning that they were accepted from modern precipitation and ancient precipitationin the north of Qinling Mountains ,while the deep geothermal water with the tritium content was less than 1 TU and the average value of 14C dating was more than twenty thousand ,meaning that it was ac-cepted from ancient precipitation recharge before Holocene in the north of Qinling Mountains .The result showed that the deep and shallow underground hot water inflowed from the southwest direction .The range of the recharge height was 839 m-1 746 m .The annual average temperature was 0 .69 ℃ when the deep and shallow underground hot water received recharge .The recharge environment was the pore and fracture type underground hot water system .