Porewater profiles of reactive iron, sulfide and total alkalinity in mangroves (Karumba, Australia and Everglades, USA)


Porewater Fe²⁺, FeTot and sulfide (S²⁻) were measured by spectrophotometry. The 1,10-phenanthroline method was used to determine porewater Fe²⁺ and, after reducing Fe³⁺ by adding hydroxylamine, FeTot (APHA, 2005). Aqueous S⁻² was analysed using the methylene blue method (Cline, 1969). Groundwater total alkalinity was determined by a Gran titration using a titrator (Metrohm 888 Titrando with Tiamo light) with a precision better than 5 µM. Drifts and deviations in the acid concentration were corrected using certified reference materials (CRM batch 175 and CRM batch 178), as described by Dickson (2010).

DOI https://doi.org/10.1594/PANGAEA.921929
Related Identifier https://doi.org/10.1594/PANGAEA.921934
Related Identifier https://doi.org/10.4319/lo.1969.14.3.0454
Related Identifier https://doi.org/10.5670/oceanog.2010.22
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.921929
Creator Reithmaier, Gloria Maria Susanne; Maher, Damien T
Publisher PANGAEA
Publication Year 2020
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 240 data points
Discipline Earth System Research
Spatial Coverage (-81.085W, -23.509S, 140.874E, 25.362N); Florida, USA; Queensland, Australia