Dome Fuji, Antarctica Core DF01 7.88-13.36m, Sulfur isotope ratios delta34S and ion (chloride, methanesulfsulfonic acid, sulfate, Na+, K+, Mg2+ and Ca2+) concentrations ...

• Main Authors: Takahashi, Kazuya, Sahoo, Yu Vin, Nakai, Yoichi, Motoyama, Hideki, Motizuki, Yuko
• Format: Dataset
• Language: English
• Published: Arctic Data archive System (ADS), Japan 2022
• Subjects: CLIMATE INDICATORS>PALEOCLIMATE INDICATORS>ICE CORE RECORDS>ISOTOPES; CLIMATE INDICATORS>PALEOCLIMATE INDICATORS>ICE CORE RECORDS>IONS; CLIMATE INDICATORS>PALEOCLIMATE INDICATORS>ICE CORE RECORDS>VOLCANIC DEPOSITS; Dome Fuji; Antarc*; Antarctica; ice core
• Online Access: https://dx.doi.org/10.17592/001.2022020101; https://ads.nipr.ac.jp/dataset/A20220201-001

Sulfur isotopic (delta34S) analysis were performed for shallow ice core DF01 from Dome Fuji, Antarctica, including a chronological profile with annual resolution for the entire 19th century. This profile, which is directly comparable to the chronological concentration profiles of sulfate and other ions, is an important proxy for examining variations in the origin of sulfur related to climate changes.In the delta 34S and non-sea-salt (nss)-sulfate ((SO42-)nss) profiles, the signals of five well-known 19th century volcanic eruptions were confirmed: Krakatau 1883 (and Tarawera 1886), Makian 1861, Cosiguina 1835, Tambora 1815, and Unknown 1809. The averages of nss-sulfur-isotope composition (delta 34Snss) and (SO42-)nss for the second half, calculated after excluding these prominent signals, were found to differ from those for the first half century. We also examined singularities other than the five major volcanic signals in the delta 34S and (SO42-)nss profiles based on not only variations in delta 34S and ...