论文标题
三连接和晶界影响极性冰中的气候信号
Triple Junction and Grain Boundary Influences on Climate Signals in Polar Ice
论文作者
论文摘要
气候变化研究所W. M. Keck Laser ICE设施激光消融电感耦合等离子体光谱仪（LA-ICP-MS）每121微米产生一个样品，这是冰晶体三重连接处的分辨率和冰芯中的晶粒边界的分辨率。最近的出版物表明，这些特征可以允许放大杂质浓度，并允许通过静脉迁移潜在地掩盖了极地冰中的气候信号。 LA-ICP-MS数据显示，基于对全新世开始时沉积的GISP2冰的检查，这种特征将这些信号修改为不到6％。
The Climate Change Institute W. M. Keck Laser Ice Facility laser ablation inductively coupled plasma spectrometer (LA-ICP-MS) yields a sample every 121 micrometers, a resolution on the scale of ice crystal triple junctions and grain boundaries in ice cores. Recent publications suggest that these features can allow amplification of impurity concentrations, and allow migration through veins potentially obscuring climate signals preserved in polar ice. LA-ICP-MS data reveal that such features modify these signals by less than 6% in the case of Na, Ca, and Fe based on the examination of GISP2 ice deposited at the beginning of the Holocene.
