TY - JOUR
T1 - Brief communication
T2 - Identification of 140ĝ€¯000-year-old blue ice in the Grove Mountains, East Antarctica, by krypton-81 dating
AU - Hu, Zhengyi
AU - Jiang, Wei
AU - Yan, Yuzhen
AU - Huang, Yan
AU - Tang, Xueyuan
AU - Li, Lin
AU - Ritterbusch, Florian
AU - Yang, Guo Min
AU - Lu, Zheng Tian
AU - Shi, Guitao
N1 - Publisher Copyright:
© 2024 Copernicus Publications. All rights reserved.
PY - 2024/4/9
Y1 - 2024/4/9
N2 - The presence of exceptionally old ice and relative ease of access make Antarctic blue-ice areas (BIAs) attractive paleoclimate archives. However, only a handful of BIAs, mostly situated in West Antarctica and along the Transantarctic Mountains, have been investigated for this purpose. Here, we present the age of surface ice from the Grove Mountains BIA in Princess Elizabeth Land, East Antarctica, determined by measuring 81Kr in the trapped air. Two samples yield an average age of 143-29+33 kyr. Together with the reported terrestrial age of a chondrite, we conclude that the Grove Mountains BIA holds considerable potential for paleoclimate studies.
AB - The presence of exceptionally old ice and relative ease of access make Antarctic blue-ice areas (BIAs) attractive paleoclimate archives. However, only a handful of BIAs, mostly situated in West Antarctica and along the Transantarctic Mountains, have been investigated for this purpose. Here, we present the age of surface ice from the Grove Mountains BIA in Princess Elizabeth Land, East Antarctica, determined by measuring 81Kr in the trapped air. Two samples yield an average age of 143-29+33 kyr. Together with the reported terrestrial age of a chondrite, we conclude that the Grove Mountains BIA holds considerable potential for paleoclimate studies.
UR - https://www.scopus.com/pages/publications/85190236266
U2 - 10.5194/tc-18-1647-2024
DO - 10.5194/tc-18-1647-2024
M3 - 文章
AN - SCOPUS:85190236266
SN - 1994-0416
VL - 18
SP - 1647
EP - 1652
JO - Cryosphere
JF - Cryosphere
IS - 4
ER -
