New data from the 40 year old Dye3 core
crossref(2020)
摘要
<p>The Dye3 core was drilled at Dye3 (65°11’N, 43°50’W) in 1979 – 1981. The core has been analyzed for numerous components over the last decades. We measured remaining sections, the Younger Dryas and a larger portion of the last glacial, in a continuous flow setup in fall 2019. Here we focus on gas measurements. We measured methane, δ<sup>15</sup>N, δ<sup>40</sup>Ar, and the elemental ratio of Ar and N<sub>2</sub>. We present the continuous flow setup for measuring those components in parallel and first results with a focus on the exact timing of changes in methane and δ<sup>15</sup>N and δ<sup>40</sup>Ar at the Younger Dryas and Dansgaard-Oeschger transitions. </p>
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