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Bibliographic Details
Main Authors: Pérez-Rodríguez, Marta, Biester, Harald, Wenzhöfer, Frank, Glud, Ronnie N
Format: Dataset Open Access
Language:en
Published: PANGAEA 2026
Subjects:
Carbon, total; DATE/TIME; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Elemental analyser (EA), HEKAtech, Euro EA 3000; ELEVATION; Event label; Gas chromatograph - cold vapor atomic fluorescence spectrometery (GC-CVAFS), Brooks Rand, Methylmercury Manual System; Hadal trench; Island Impact; LATITUDE; LONGITUDE; Mercury; Methylmercury; Monomethylmercury; MUC; MultiCorer; Polarstern; PS133/1; PS133/1_15-5; PS133/1_16-1; PS133/1_17-2; PS133/1_9-22; South Georgia Island; South Sandwich Islands; South Sandwich Trench; Thermal decomposition amalgamation - atomic absorption spectrometer (TDA AAS), Milestone, DMA-80
Online Access:https://doi.org/10.1594/PANGAEA.987321
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Table of Contents:
  • Sediment cores for total mercury (Hg), monomethylmercury (MMHg), and total carbon (TC) were collected in the Southern Ocean and the South Sandwich Trench between 3 and 9 November 2022 during the PS133/1 expedition. Sampling depths ranged from approximately 3700 to 8000 m, using a multicorer (MUC) system. Total Hg concentrations were determined by thermal decomposition, amalgamation, and atomic absorption spectrophotometry (TDA–AAS) using a DMA-80 Direct Mercury Analyzer (Milestone). Monomethylmercury (MMHg) was analyzed by gas chromatography–cold vapor atomic fluorescence spectrometry (GC–CVAFS) following ethylation with sodium tetraethylborate on a KOH-digested aliquot, using a Brooks Rand manual system. Total carbon (TC) was measured using an elemental analyzer Euro EA 3000 (HEKAtech GmbH).

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