Lower Cretaceous Valanginian Barremian
type: Dataset
description: The NSTA Regional Aquifer Presence Maps publication contains a series of geological maps, each representing a discrete stratigraphic play interval within the UK Continental Shelf. The feature classes aim to characterise the subsurface geological framework relevant to potential aquifer-based subsurface storage (including CO₂ storage, hydrogen storage, and compressed air energy storage). Each feature class includes attribute information describing: Gross Depositional Environment (GDE) – interpreted paleoenvironmental setting controlling sediment distribution. Depositional Facies – sedimentary facies classification. Lithology Group and Lithology – simplified lithological descriptors indicating dominant sediment composition. Chronostratigraphic Age – standardised age assignment for each interval. These datasets are built upon the regional geological interpretations produced during the UKCS Regional Geology Maps project undertaken by Lloyd’s Register and the OGA. This work integrated seismic interpretation, well data, field data, stratigraphic correlation, and regional geological understanding to generate consistent interval based geological maps across the basin. Potential Applications The maps are designed to function as an early-stage screening tool to guide: identification of intervals with favourable or unfavourable characteristics for subsurface storage; regional assessment of aquifer presence, continuity, and variability; prioritisation of areas where more detailed appraisal or data acquisition may be warranted; While not a substitute for detailed geological modelling or licence scale site characterisation, the maps provide a baseline understanding of the geological context and help focus effort where it is likely to provide the greatest value.
issued: 2026-02-19T11:19:43+00:00
modified: 2026-02-19T12:29:49.952000+00:00
publisher: North Sea Transition Authority
landing page: https://open-data-ukcs-transition.hub.arcgis.com/datasets/UKCS-transition::lower-cretaceous-valanginian-barremian-2

GeoJSON
type: Distribution
format: GeoJSON
issued: 2026-06-18T11:12:12.430627
modified: 2026-06-18T11:12:12.426485
access URL: https://open-data-ukcs-transition.hub.arcgis.com/api/download/v1/items/ff896f5dbe1049cdbe288424ff1665dd/geojson

Feature Collection
type: Distribution
format: TXT
issued: 2026-06-18T11:12:12.430630
modified: 2026-06-18T11:12:12.426611
access URL: https://open-data-ukcs-transition.hub.arcgis.com/api/download/v1/items/ff896f5dbe1049cdbe288424ff1665dd/featureCollection

Shapefile
type: Distribution
format: ZIP
issued: 2026-06-18T11:12:12.430626
modified: 2026-06-18T11:12:12.426420
access URL: https://open-data-ukcs-transition.hub.arcgis.com/api/download/v1/items/ff896f5dbe1049cdbe288424ff1665dd/shapefile

KML
type: Distribution
format: KML
issued: 2026-06-18T11:12:12.430628
modified: 2026-06-18T11:12:12.426528
access URL: https://open-data-ukcs-transition.hub.arcgis.com/api/download/v1/items/ff896f5dbe1049cdbe288424ff1665dd/kml

ArcGIS GeoService
type: Distribution
format: ArcGIS GeoServices REST API
issued: 2026-06-18T11:12:12.430625
modified: 2026-06-18T11:12:12.426322
access URL: https://services-eu1.arcgis.com/OZMfUznmLTnWccBc/arcgis/rest/services/UKCS_regional_aquifers_geology_%28ED50%29/FeatureServer/13

GeoPackage
type: Distribution
format: GPKG
issued: 2026-06-18T11:12:12.430631
modified: 2026-06-18T11:12:12.426689
access URL: https://open-data-ukcs-transition.hub.arcgis.com/api/download/v1/items/ff896f5dbe1049cdbe288424ff1665dd/geoPackage

File Geodatabase
type: Distribution
format: ZIP
issued: 2026-06-18T11:12:12.430629
modified: 2026-06-18T11:12:12.426570
access URL: https://open-data-ukcs-transition.hub.arcgis.com/api/download/v1/items/ff896f5dbe1049cdbe288424ff1665dd/filegdb

ArcGIS Hub Dataset
type: Distribution
format: HTML
issued: 2026-06-18T11:12:12.430623
modified: 2026-06-18T11:12:12.426241
access URL: https://open-data-ukcs-transition.hub.arcgis.com/datasets/UKCS-transition::lower-cretaceous-valanginian-barremian-2

Excel
type: Distribution
format: XLSX
issued: 2026-06-18T11:12:12.430630
modified: 2026-06-18T11:12:12.426650
access URL: https://open-data-ukcs-transition.hub.arcgis.com/api/download/v1/items/ff896f5dbe1049cdbe288424ff1665dd/excel

CSV
type: Distribution
format: CSV
issued: 2026-06-18T11:12:12.430625
modified: 2026-06-18T11:12:12.426376
access URL: https://open-data-ukcs-transition.hub.arcgis.com/api/download/v1/items/ff896f5dbe1049cdbe288424ff1665dd/csv

SQLite Geodatabase
type: Distribution
format: GDB
issued: 2026-06-18T11:12:12.430632
modified: 2026-06-18T11:12:12.426730
access URL: https://open-data-ukcs-transition.hub.arcgis.com/api/download/v1/items/ff896f5dbe1049cdbe288424ff1665dd/sqlite