Dataset on pore water composition and grain size properties of bottom sediments and subsea permafrost from the Buor-Khaya Bay (Laptev Sea)

Alexander S Ulyantsev; Svetlana Yu Bratskaya; Natalya V Polyakova; Ivan S Trukhin; Yulia A Parotkina

doi:10.1016/j.dib.2021.107580

Dataset on pore water composition and grain size properties of bottom sediments and subsea permafrost from the Buor-Khaya Bay (Laptev Sea)

Data Brief. 2021 Nov 16:39:107580. doi: 10.1016/j.dib.2021.107580. eCollection 2021 Dec.

Authors

Alexander S Ulyantsev¹, Svetlana Yu Bratskaya², Natalya V Polyakova², Ivan S Trukhin^{1

2}, Yulia A Parotkina^{1

2}

Affiliations

¹ Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow 117997, Russia.
² Institute of Chemistry, Far Eastern Branch of the Russian Academy of Sciences, Vladivostok 690022, Russia.

Abstract

The article presents a dataset on ionic composition of pore water and grain size properties of 105 samples of bottom sediments and subsea permafrost from three sediment cores obtained during polar expeditions in the Buor-Khaya Bay in 2014-2015. Collection sites are located southeast of the Lena Delta near the Bykovsky Peninsula at the Buor-Khaya Bay. In this data article, the concentration of sodium, potassium, calcium, and magnesium cations, chlorides and sulphates in water extracts from sediments, as well as grain size characteristics, are presented. Based on these measurements a difference in salinisation dynamics of thawed strata within the Buor-Khaya Bay is shown.

Keywords: Arctic; Bottom sediments; Coastal zone; Grain size; Major ions; Pore water; Subsea permafrost.