Nitrogen isotope and abundance data from brine seeps in the Gulf of Mexico

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.

Date (Creation): 2025-04-10

Citation identifier: http://data.bgs.ac.uk/id/dataHolding/13608218

Point of contact

Organisation name	Individual name	Electronic mail address	Role
University of St Andrews	Eva Elisabeth Stueeken	not available	Originator
University of St Andrews	Annabel Long	not available	Originator
University of St Andrews	Nathan Rochelle-Bates	not available	Originator
University of North Carolina at Chapel Hill	Andreas Teske	not available	Originator
British Geological Survey	Enquiries	not available	Distributor
British Geological Survey	Enquiries	not available	Point of contact

Maintenance and update frequency: notApplicable

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

NGDC Deposited Data
Citable Data
Nitrogen isotopes
Sedimentary ores

dataCentre

Keywords

NERC_DDC

Access constraints: Other restrictions

Other constraints: licenceOGL

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Use constraints: Other restrictions

Other constraints: 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.

Other constraints: Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"

Language: English

Topic category

Geoscientific information

Begin date: 2023-06-01

End date: 2024-03-29

Reference System Information

No information provided.

Distribution format

Name	Version
MS Excel

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
British Geological Survey	Enquiries	not available	Distributor

OnLine resource

Protocol	Linkage	Name
	https://webapps.bgs.ac.uk/services/ngdc/accessions/index.html#item184559	Data

OnLine resource

Protocol	Linkage	Name
	https://doi.org/10.5285/39988664-4361-4bee-a4ad-3f40931890c6	Digital Object Identifier (DOI)

Hierarchy level: Non geographic dataset

Other: non geographic dataset

Conformance result

Title: INSPIRE Implementing rules laying down technical arrangements for the interoperability and harmonisation of Geology

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

Conformance result

Title: 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

Date (Publication): 2010-12-08

Explanation: See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Pass: No

Statement: 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.