Clay mineral records for the last two glaciations at the East Siberian continental margin ...
Four gravity sediment cores used for clay mineral analysis were recovered from the East Siberian continental margin. Core M04 (172.199W,75.982N ), with a length of 560 cm, was recovered from the Chukchi Basin during the fifth Chinese National Arctic Research Expedition (CHINARE) in 2012; core C22 (1...
| Main Authors: | , , , , |
|---|---|
| Format: | Article in Journal/Newspaper |
| Language: | English |
| Published: |
PANGAEA
2023
|
| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.955002 https://doi.pangaea.de/10.1594/PANGAEA.955002 |
| Summary: | Four gravity sediment cores used for clay mineral analysis were recovered from the East Siberian continental margin. Core M04 (172.199W,75.982N ), with a length of 560 cm, was recovered from the Chukchi Basin during the fifth Chinese National Arctic Research Expedition (CHINARE) in 2012; core C22 (154.581W, 77.164N ), with a length of 200 cm, from the Northwind Ridge during the sixth CHINARE in 2014; and cores E23 (179.715E, 77.060N ) and P13 (159.865W, 77.991N ), with lengths of 354 cm and 246 cm from the southern Mendeleev Ridge and Chukchi Plateau, respectively, during the seventh CHINARE in 2017. The fine-grained fractions (<63 μm) of each sample were retained for clay mineral analysis. Decalcification and organic material removal were performed at room temperature with 1 M HCl and 30% H2O2, respectively. Clay fractions (<2 μm) were determined using Stokes’ law (Liu et al., 2010 and references therein). Each sample was oriented by wet smearing onto two glass slides before being air-dried. One of ... |
|---|