Electrical measurements on the Greenland Ice Sheet Project 2 Core
Electrical measurements on the Greenland Ice Sheet Project 2 Core
复制标题
格陵兰冰盖项目 2 核心的电气测量
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
P. Mayewski
中科院分区：
文献类型：
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作者：
K. Taylor;R. Alley;G. Lamorey;P. Mayewski
格陵兰冰盖项目 2 (GISP2) 电导率测量 (ECM) 记录表明了岩心中 H + 的浓度。 ECM 检测到岩心硝酸盐浓度的季节性变化，用于通过年度层数计数来协助确定岩心的年代。产生酸性气溶胶的火山喷发记录在 ECM 记录中。 ECM 可以检测到生物质燃烧的证据，因为与火灾相关的铵排放会中和核心中的酸。与新仙女木期和 Dansgaard/Oeschger 间质事件相关的快速气候转变改变了碱性尘埃的浓度，并被 ECM 检测到。 ECM 已用于开发 GISP2 和格陵兰冰芯项目岩心之间的地层联系。数据用户应注意 ECM 记录中的一些与仪器相关的工件。
The Greenland Ice Sheet Project 2 (GISP2) electrical conductivity measurement (ECM) record is an indication of the concentration of H + in the core. The ECM detected seasonal variations in the nitrate concentration of the core which were used to assist in dating the core by annual layer counting. Volcanic eruptions that produce acidic aerosols are recorded in the ECM record. Evidence of biomass burning is detected by the ECM because fire-related ammonium emissions neutralize the acids in the core. Rapid climate transitions associated with the Younger Dryas and Dansgaard/Oeschger interstadial events alter the concentration of alkaline dust and are detected by the ECM. The ECM has been used to develop stratigraphic ties between the GISP2 and the Greenland Ice Core Project cores. Users of the data should be aware of some instrument-related artifacts in the ECM record.