Single crystal 40Ar‐39Ar dating of a Late Quaternary paroxysm on Kos, Greece: Concordance of terrestrial and marine ages
Single crystal 40Ar‐39Ar dating of a Late Quaternary paroxysm on Kos, Greece: Concordance of terrestrial and marine ages
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希腊科斯岛晚第四纪爆发的单晶 40Ar-39Ar 测年：陆地和海洋年龄的一致性
DOI：
10.1029/96gl02759
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发表时间：
1996
影响因子：
5.2
通讯作者：
N. M. Evensen
中科院分区：
文献类型：
--
作者：
Patrick E. Smith;D. York;Y. Chen;N. M. Evensen
在希腊科斯岛上形成科斯高原凝灰岩的晚第四纪普林纪火山喷发是地中海最大的火山喷发之一。这次喷发的精确日期将大大改善深海火山层W-3的年代学，因为W-3与KOS高原凝灰岩的可靠相关性已经建立。我们使用激光聚变单晶40Ar-39Ar技术测定了火山喷发时161.3±1.1 ka的火山灰。这个年龄比传统的和高度精确的（Cassignol方法）K-Ar年龄都有了显著的改进，40Ar-39Ar年龄与最近天文校准的氧同位素年表推断的W-3年龄非常吻合。
The late Quaternary plinian eruption forming the Kos Plateau Tuff on the island of Kos, Greece, was one of the largest in the Mediterranean. A precise date for this eruption would significantly improve the chronology of the deep-sea tephra layer W-3, because reliable correlation of W-3 with the KOS Plateau Tuff has been previously established. We have dated sanidine from the eruption at 161.3±1.1 ka using the laser-fusion single crystal 40Ar-39Ar technique. This age represents a significant refinement over both conventional and highly precise (Cassignol method) K-Ar ages, and the 40Ar-39Ar age is shown to be in remarkably good agreement with the age of W-3 inferred from recent astronomically calibrated oxygen isotope chronologies.