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珠穆朗玛峰东绒布冰芯微粒来源示踪
  • 期刊名称：科学通报
  • 时间：0
  • 页码：1756-1760
  • 分类：P426.63[天文地球—大气科学及气象学] TQ460.7[化学工程—制药化工]
  • 作者机构：[1]中国科学院寒区旱区环境与工程研究所,冰冻圈科学国家重点实验室,兰州730000, [2]中国科学院地质与地球物理研究所,北京100029
  • 相关基金：国家重点基础研究发展计划（编号：2007CB411501）、国家自然科学基金（批准号：90411003）、中国科学院“百人计划”和中国科学院知识创新工程项目（编号：KZCX3,SW-344）资助
  • 相关项目：极地冰川学
作者： 徐建中|侯书贵|陈福坤|任贾文|秦大河|
关键词： 珠穆朗玛峰, 东绒布冰芯, 微粒, SR-ND-PB同位素
中文摘要：

首次通过Sr-Nd-Pb同位素示踪方法,研究了珠穆朗玛峰（以下简称：珠峰）东绒布冰芯中不溶性微粒的来源.结果表明,冰芯污化层样品中的微粒主要来源于局地粉尘源;而非污化层样品的同位素组成和印度西北干旱区的结果接近.HYSPLIT模式的空气轨迹分析表明,印度西北部发生尘暴时,到达冰芯采样点的气流首先要经过该地区,进一步验证了东绒布冰芯中微粒来源于印度西北部的可能性.

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