16324f01-e756-3a2c-e063-0937940adada English nonGeographicDataset non geographic dataset British Geological Survey +44 115 936 3100 Environmental Science Centre,Keyworth NOTTINGHAM NOTTINGHAMSHIRE NG12 5GG United Kingdom enquiries@bgs.ac.uk pointOfContact 2026-05-01 UK GEMINI 2.3 http://data.bgs.ac.uk/id/dataHolding/13608218 Nitrogen isotope and abundance data from brine seeps in the Gulf of Mexico 2025-04-10 creation http://data.bgs.ac.uk/id/dataHolding/13608218 Nitrogen isotope and abundance data from brine seeps in the Gulf of Mexico. Three data tables show (1) Electrical Conductivity data for three sediment cores, (2) carbon and nitrogen data from all sediment cores investigated in this study, and (3) ammonium concentrations and isotopic data from brine pool samples. The results show high enrichments of ammonium in the brines, indicating that the brines actively mobilize bioavailable nitrogen back into the water column. Isotopic data reveal evidence of dissimilatory nitrate reduction to ammonium at the brine-seawater interface. Brine seeps have long been implicated in the formation of sediment-hosted hydrothermal ore deposits. Our results support the notion that brines may have stimulated biological productivity, facilitating trapping of metals in brine seep environments. Eva Elisabeth Stueeken University of St Andrews not available originator Annabel Long University of St Andrews not available originator Nathan Rochelle-Bates University of St Andrews School of Earth & Environmental Sciences, Bute Building, Quen’s Terrace St Andrews KY16 9TS not available originator Andreas Teske University of North Carolina at Chapel Hill Department of Marine Sciences Chapel Hill NC 27599-3300 not available originator Enquiries British Geological Survey United Kingdom not available distributor Enquiries British Geological Survey United Kingdom not available pointOfContact notApplicable https://resources.bgs.ac.uk/images/geonetworkThumbs/16324f01-e756-3a2c-e063-0937940adada.png Geology GEMET - INSPIRE themes, version 1.0 2008-06-01 publication Nitrogen isotopes Sedimentary ores BGS Thesaurus of Geosciences 2022 revision NGDC Deposited Data Citable Data dataCentre NERC_DDC otherRestrictions licenceOGL Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" otherRestrictions The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused. Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]" English geoscientificInformation 2023-06-01 2024-03-29 Microsoft Excel witheld Enquiries British Geological Survey United Kingdom not available distributor https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item184559 WWW:DOWNLOAD-1.0-http--download Data download https://doi.org/10.5285/39988664-4361-4bee-a4ad-3f40931890c6 WWW:LINK-1.0-http--related Citation Information - Digital Object Identifier (DOI) Stueeken, E., Long, A., Rochelle-Bates, N., Teske, A. (2024). Nitrogen isotope and abundance data from brine seeps in the Gulf of Mexico. NERC EDS National Geoscience Data Centre. (Dataset). https://doi.org/10.5285/39988664-4361-4bee-a4ad-3f40931890c6 information nonGeographicDataset non geographic dataset INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology 2011 publication See the referenced specification false Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 publication See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF false The sediment samples were analysed by EA-IRMS for carbon and nitrogen isotopes and abundances. Pore water samples and brine samples were analysed for ammonium concentrations by spectrophotometry. Dissolved ammonium was analysed for isotopic ratios by micro-diffusion, followed by EA-IRMS. Electrical conductivity of pore waters was measured with a handheld probe. Details of the methodology can be found in Stueeken et al. (in review) JGR Biogeosciences.