Sedimentology, mineralogy, and geochemistry results of core Arc7-E25 from southern Mendeleev Ridge, Arctic Ocean

The 320 cm long gravity core E25 (Arc7-E25, 179.4°E, 79.0°N; 1200 m) was retrieved from the southernmost Mendeleev Ridge during the 7th cruise of the Chinese Arctic expedition on the R/V Xue Long in 2016. In combination with the 14C ages, U-Th series measurements analyzed at Geotop-UQAM in 2019 have...

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Bibliographic Details
Main Authors: Song, Tengfei, Hillaire-Marcel, Claude, de Vernal, Anne, Liu, Yanguang
Format: Other/Unknown Material
Language:English
Published: PANGAEA 2022
Subjects:
14C age
230Th excess
Arctic Ocean
grain size distribution
mineralogy
total organic carbon (TOC)
Ice Shelf
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.949846
https://doi.org/10.1594/PANGAEA.949846
Description
Summary:The 320 cm long gravity core E25 (Arc7-E25, 179.4°E, 79.0°N; 1200 m) was retrieved from the southernmost Mendeleev Ridge during the 7th cruise of the Chinese Arctic expedition on the R/V Xue Long in 2016. In combination with the 14C ages, U-Th series measurements analyzed at Geotop-UQAM in 2019 have been used to set up the chronostratigraphy. In addition, TOC and its 13C, grain size distribution, and bulk mineralogy have also been analyzed to evaluate the resilience of the East Siberian Ice Shelf/Sheet and to provide a distinct paleoceanographic view of the western Arctic Ocean.

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