Cosmogenic Radionuclides in the GISPII Ice Core: 10Be, 26Al, and 36Cl

GISPII 冰芯中的宇宙放射性核素：10Be、26Al 和 36Cl

• 批准号: 9321407
• 负责人: Kunihiko Nishiizumi
• 金额: $ 25.55万
• 依托单位: University of California-Berkeley
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-09-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9321407&HistoricalAwards=false
• 关键词: Cosmogenic; Radionuclides; GISPII; Ice; Core

9321407 Nishiizumi This award supports a program to measure Beryllium-10, Aluminum-26, and Chlorine-36 in samples from the Greenland Ice Sheet Project Two (GISP2) ice core. A continuous profile of cosmogenic nuclide concentrations from the surface to the bottom of the core will be measured and the resulting time series of nuclide concentrations will be applied to deducing the history of solar activity, deducing the history of variations in the geomagnetic field and dating of ice cores. The time series will also be used to study climatic history through the effects of atmospheric circulation and of atmospheric chemistry on nuclide deposition. The successful coring of the sub-ice bedrock has also provided the opportunity of studying the exposure age of the sub-ice surface. ***

9321407 Nishiizumi该奖项支持一个项目，以测量格陵兰冰盖项目二（GISP 2）冰芯样品中的铍-10，铝-26和氯-36。 将测量从冰芯表面到底部的宇宙成因核素浓度的连续剖面，并将由此产生的核素浓度时间序列用于推断太阳活动的历史、推断地磁场变化的历史和冰芯的年代测定。 时间序列还将用于通过大气环流和大气化学对核素沉积的影响来研究气候历史。 冰下基岩的成功取芯也为研究冰下表面的暴露年龄提供了机会。 ***