Tracing the sources of particles in the East Rongbuk ice core from Mt. Qomolangma  

作　　者：XU JianZhong HOU ShuGui CHEN FuKun REN JiaWen QIN DaHe 

机构地区：[1]State Key Laboratory of Cryospheric Sciences, Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000, China [2]State Key Laboratory of Lithospheric Evolution, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China

出　　处：《Chinese Science Bulletin》2009年第10期1781-1785,共5页

基　　金：Supported jointly by National Basic Research Program of China (Grant No. 2007CB411501);National Natural Science Foundation of China (Grant No. 90411003);Hundred Talents Project of the Chinese Academy of Sciences (Grant No. KZCX3-SW-344)

摘　　要：Sr-Nd-Pb isotopic tracer was applied, for the first time, to identifying the sources of the particles in the East Rongbuk ice core from Mt. Qomalangma (Everest). The results show that the particles in the dirty layers originate mainly from local sources, while the particles in the non-dirty layers are consistent with the features of dust from the arid regions in northwestern India. The HYSPLIT model shows that the air trajectory goes first through northwestern India before reaching the drilling site of ice core when dust storms occur in northwestern India, confirming northwestern India as a possible source of dust in the East Rongbuk ice core.Sr-Nd-Pb isotopic tracer was applied, for the first time, to identifying the sources of the particles in the East Rongbuk ice core from Mt. Qomalangma （Everest）. The results show that the particles in the dirty layers originate mainly from local sources, while the particles in the non-dirty layers are consistent with the features of dust from the arid regions in northwestern India. The HYSPLIT model shows that the air trajectory goes first through northwestern India before reaching the drilling site of ice core when dust storms occur in northwestern India, confirming northwestern India as a possible source of dust in the East Rongbuk ice core.

关 键 词：东绒布冰芯 珠穆朗玛峰 粒子 西北干旱地区 同位素示踪 西北部 印度 钻探 

分 类 号：P426.63[天文地球—大气科学及气象学] G881[文化科学—体育训练]