geodata-info
Top Chalk surface in the Danish subsurface
This dataset represents the structure and topography of the Top Chalk surface, i.e. the top of the Chalk Group (including Upper Cretaceous to Danian), in the Danish subsurface. The map illustrates regional variations in the depth and structural configuration of the chalk surface from the central North Sea to the eastern Danish areas. It is based on an integrated geological and geophysical interpretation of seismic profiles, well data and earlier mapping. The map provides an essential basis for geological, geophysical and subsurface reservoir analyses.
Simple
Identifikation
- Titel
-
Top Chalk surface in the Danish subsurface
Offentliggørelsestidspunkt
- Dato (Publication)
- 2007-11-20
Ansvarlig myndighed og kontaktoplysninger
- Kontakt vedr. service
-
Organisationsnavn E-mail adresse Rolle The Geological Survey of Denmark and Greenland (GEUS)
Point of contact
- Metadata author
-
Organisationsnavn E-mail adresse Rolle The Geological Survey of Denmark and Greenland (GEUS)
Point of contact
Geografisk udstrækning
- Koordinatsystem
-
ETRS 89 / UTM 32N (EPSG:25832)
Nøgleord
- Nøgleord
-
Dataset
- Nøgleord
-
Geology
- Nøgleord
-
Top Chalk
- Nøgleord
-
Subsurface
- Nøgleord
-
Denmark
- Nøgleord
-
Seismic
- Type
- Theme
- Nøgleord
- Geoscience and history policy
- Type
- Theme
- Titel
- Forskningsemner
- Dato (Publication)
- 2025-11-03
- Nøgleord
- Denmark
- Type
- Place
- Titel
- Geografisk
- Dato (Publication)
- 2025-12-11
Kvalitet
- Type som metadata beskriver
- Dataset
- Beskrivelse
-
The dataset was developed as part of GEUS’s geological mapping initiatives and was described in GEUS Bulletin No. 13 (2007), which published three maps of chalk in Denmark: top chalk surface, base chalk surface, and an isopach map of the chalk group. The maps were produced by integrating extensive seismic data, well data from more than 500 deep oil and gas wells, and mapped information from water boreholes and previous geological interpretations. The interpretations are based on publicly available seismic profiles and geological data compiled up to the early 2000s.
)))
