南极雪的氢氧同位素组成  

Deuterium and ^(18)O Contents and Distributions in Antarctic Snow

作　　者：刘广山[1] 黄奕普[1] 金德秋[2] 周锡煌[2] 

机构地区：[1]厦门大学海洋学系,福建厦门361005 [2]北京大学化学系,北京100871

出　　处：《厦门大学学报（自然科学版）》2001年第3期664-668,共5页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金重点项目!( 4 98360 10 );国家"九.五"科技攻关计划!( 98- 92 7- 0 1- 0 5)资助

摘　　要：测定了南极中山站至 Dome A沿线表层雪、中山站附近海冰上覆雪、新降雪和中山站附近湖水的 D和 18O,对内陆雪 δD和 δ18O随纬度和海拔高度的变化、海冰上覆雪 δD和 δ18O随深度的变化 ,各种雪中 δD和The deuterium and 18 O in various Antarctic snow samples including the surface snow, which collected along the track from Station Zhongshan to Dome A, overlying snow on sea ice, fresh snow and lake water nearby Station Zhongshan, were measured. The results indicate that δ D and δ 18 O in the surface snow of Antarctic inland were negatively correlated with the latitude and the sea level elevation respectively. In the snow core from the overlying snow on sea ice, the depth distributions of δ D and δ 18 O appeared the feature of variation with the seasons. The relationship between δ D and δ 18 O in various snow samples were studied. The relation equation for both δ D and δ 18 O for fresh snow was most close to the Craig’s meteoric water line (MWL) and the equation for lake water far from MWL.

关 键 词：雪 南极 氢氧同位素组成 质谱测定 

分 类 号：P426.63[天文地球—大气科学及气象学] P734.24