c6e3292109d85b178dae3c899d4a80a7 English dataset Polly Hadziabdic British Oceanographic Data Centre Head of BODC Enquiries Joseph Proudman Building 6 Brownlow Street Liverpool Merseyside L3 5DA United Kingdom enquiries@bodc.ac.uk https://www.bodc.ac.uk/ pointOfContact 2026-03-24T14:41:52 MEDIN 3.1.2 urn:ogc:def:crs:EPSG::4326 OGP 3D ocean bottom node seismic data across the 13°30'N Oceanic Core Complex and the Semenov Hydrothermal Field region of the Mid-Atlantic Ridge (JC254, 2023) British Oceanographic Data Centre record 1048ULTRA_OBX_SEM4 2025-06-05 publication 2026-03-18 creation 2026-03-18 revision EDMED7408 http://www.bodc.ac.uk/ The dataset contains 3D wide-angle seismic data from 18 ocean bottom nodes (OBXs) collected during RRS James Cook cruise JC254 in November 2023. The data were acquired at the 1330 Oceanic Core Complex and the Semenov Hydrothermal Field region of the Mid-Atlantic Ridge at 13°30'N, and were shot in six sequences (SEM4A to SEM4F), along 15 profiles in total. Two GI-guns were used as seismic sources, each with a total volume of 355 cubic inches (250 cu. inch generator, 105 cu. inch injector chamber. The data were recorded at a sampling rate of 2000 Hz, with a shot interval of 20 s at a ship speed of 4 knots, resulting in shot interval of ~30 m, with no stop during profile turns. The data are provided in raw SEGY format, cut into four components (three geophone channels and one hydrophone channel). This dataset was collected to derive a seismic velocity structure of the 13°30'N Oceanic Core Complex (OCC). The aim was to investigate the crustal or mantle lithologies in the 13°30'N OCC and to understand the interplay between tectonic faulting, magmatism, alteration and hydrothermal circulation at the ultramafic-hosted hydrothermal systems along slow-spreading ridges. The data were collected as part of a NERC-funded strategic research project called 'Ultramafic-hosted mineral Resource Assessment (ULTRA)', grant reference NE/S004068/1. The data were processed and interpreted as part of a PhD studentship hosted by the University of Southampton, awarded to Szu-Ying Lai, and funded by Equinor A.S, Norway. Unknown University of Southampton School of Ocean and Earth Science Unknown +44 (0)23 8059 2011 National Oceanography Centre, European Way Southampton Hampshire SO14 3ZH United Kingdom soes@noc.soton.ac.uk http://www.soes.soton.ac.uk/ owner Unknown University of Southampton School of Ocean and Earth Science Unknown +44 (0)23 8059 2011 National Oceanography Centre, European Way Southampton Hampshire SO14 3ZH United Kingdom soes@noc.soton.ac.uk http://www.soes.soton.ac.uk/ originator British Oceanographic Data Centre Director Joseph Proudman Building 6 Brownlow Street Liverpool Merseyside L3 5DA United Kingdom enquiries@bodc.ac.uk https://www.bodc.ac.uk/ custodian British Oceanographic Data Centre Director Joseph Proudman Building 6 Brownlow Street Liverpool Merseyside L3 5DA United Kingdom enquiries@bodc.ac.uk https://www.bodc.ac.uk/ distributor asNeeded unknown SeaVoX Vertical Co-ordinate Coverages 2020-05-21 revision Marine Environmental Data and Information Network data.gov.uk Natural Environment Research Council Designated Data Centres MEDIN metadata record availability 2012-01-11 revision Three-dimensional seismic reflection SeaDataNet Parameter Discovery Vocabulary 2023-12-12 revision Geology GEMET - INSPIRE themes, version 1.0 2009-07-31 revision otherRestrictions No limitations apply Data are freely available to all following agreement to the terms and conditions of a Data Licence otherRestrictions Usage restrictions are specified in the terms of the licence English geoscientificInformation -44.983 -44.75 13.441 13.567 SeaVoX water bodies 2025-08-07 revision North Atlantic Ocean SeaVoX water bodies 2025-08-07 revision Atlantic Ocean SeaVoX water bodies 2025-08-07 revision Northwest Atlantic Ocean (40W) 2023-11-13 2023-11-16 Binary Image Text or Plaintext https://data.ceda.ac.uk/bodc/deposits02/uso250859 Webpage to gain access to data Location to access data for DOI 10.5285/35ba05be-7549-7b98-e063-7086abc0d9c4. 3D ocean bottom node seismic data across the 13°30'N Oceanic Core Complex and the Semenov Hydrothermal Field region of the Mid-Atlantic Ridge (JC254, 2023). order https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/35ba05be-7549-7b98-e063-7086abc0d9c4/ Published dataset - doi:10.5285/35ba05be-7549-7b98-e063-7086abc0d9c4 Lai S., Bayrakci G., Murton B.J., Yeo I.A., Gregory E.P.M. (2025). 3D ocean bottom node seismic data across the 13°30'N Oceanic Core Complex and the Semenov Hydrothermal Field region of the Mid-Atlantic Ridge (JC254, 2023). NERC EDS British Oceanographic Data Centre NOC doi: 10.5285/35ba05be-7549-7b98-e063-7086abc0d9c4 download dataset 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 BODC protocols are based on the Open Archival Information System (OAIS) model enabling BODC to iterate towards compliance with the on-going evolution and development of community requirements including FAIR (Findable,Accessible,Interoperable,Reusable), TRUST (Transparency, Responsibility, User community, Sustainability, Technology) and CARE (Collective Benefit, Authority to Control, Responsibility, Ethics). Data managers quality assure submissions and assemble the metadata necessary for curation. Submissions (as received) are placed in a long-term accession and stored in triplicate across multiple sites. Appropriate data are transferred into a standard internal format with source variable names mapped to controlled vocabularies, documentation assembled, and metadata loaded into BODC databases. Access to these data is through direct request, the BODC website and through partner repositories such as SeaDataNet. Access control is attained by assigning a data policy to each set of data and this policy is used to administer access when data are requested. Discovery metadata is aligned with EU INSPIRE (through MEDIN) and SeaDataNet community standards. Data are converted to open community formats including Ocean Data View ASCII and SeaDataNet NetCDF, with data described using terms from the NERC vocabulary server. BODC submission agreements are documented on the BODC website and customer service is assured with a dedicated requests team that serve data following local regulations including General Data Protection Regulation (GDPR) 2018 and Environmental Information Regulations (EIR) 2004. true This dataset was created by the organisations with the "originator" role in this metadata record following their in-house data processing and quality control procedures. The data were then provided to the British Oceanographic Data Centre (BODC) for long-term archive and data publication in the BODC Published Data Library.Instrument(s) used to collect data: seismometers; airgun.