Stable dissolved silicon isotopes measured on CTD and underway samples during AMK73 in the Laptev Sea

Dissolved stable silicon isotopes were determined in seawater samples collected during the 73rd expedition onboard RV Akademik Mstislav Keldysh (AMK73) in the Laptev Sea in October 2018 under ice free conditions. Seawater samples were filtered inline from Niskin bottles or the ship's underway system, acidified to 0.1% v/v with HCl and kept at 4°C until analysis on land. Samples were measured for δ29Si(OH)4 with reference to international reference material NBS28 on a Nu Plasma II MC-ICP-MS (The University of Edinburgh, School of Geosciences) using the MAGIC co-precipitation method and purified through column chemistry. International standards BigBatch, ALOHA300 and ALOHA1000 were run alongside seawater samples for inter-comparability. Final values were converted to δ30Si(OH)4 using the conversion factor of 1.96 for comparability. Reproducibility is 0.05 and 0.1‰ for δ29Si(OH)4 and δ30Si(OH)4 respectively. This dataset includes salinity, silicic acid concentrations and stable silicon isotope signatures of seawater, which provides useful information on the silicon biogeochemical cycle of the Laptev Sea, as influenced by the Lena river.

Data and Resources

This dataset has no data

Cite this as

Debyser, Margot, Pichevin, Laetitia, Ganeshram, Raja S, Semiletov, Igor P (2024). Dataset: Stable dissolved silicon isotopes measured on CTD and underway samples during AMK73 in the Laptev Sea. https://doi.org/10.1594/PANGAEA.965315

DOI retrieved: 2024

Additional Info

Field Value
Imported on November 30, 2024
Last update November 30, 2024
License CC-BY-4.0
Source https://doi.org/10.1594/PANGAEA.965315
Author Debyser, Margot
Given Name Margot
Family Name Debyser
More Authors
Pichevin, Laetitia
Ganeshram, Raja S
Semiletov, Igor P
Source Creation 2024
Publication Year 2024
Resource Type text/tab-separated-values - filename: Debyser-etal_2024
Subject Areas
Name: Atmosphere

Name: Chemistry

Name: Ecology

Name: Lithosphere

Related Identifiers
Title: The importance of riverine nutrient supply for the marine silica pump of Arctic shelves: Evidence from the Laptev Sea
Type: DOI
Relation: References
Source: Global Biogeochemical Cycles
Authors: Debyser Margot , Pichevin Laetitia , Ganeshram Raja S , Semiletov Igor P .