NORWAY · LITHOSTRATIGRAPHY · GROUP
Adventdalen Gp
Adventdalen Gp is a group on the Norwegian shelf. 151 wellbores have a top filed in it, at a median of 650 m along the wellbore, and 34 were cored in it for 769.7 m of core.
- 151
- wellbores with a top
- 650
- m median top · 416 to 1,496 for the middle 80%
- 34
- wellbores cored in it
- 769.7
- m of core
SODIR FACTPAGES · DEPTHS ALONG THE WELLBORE · BARENTS SEA 151
Every wellbore with a top in Adventdalen Gp →Cores from wellbores cored in Adventdalen Gp →
Units within it
- Kolmule Fm → 141 wellbores · 361.1 m core
- Hekkingen Fm → 118 wellbores · 77.6 m core
- Knurr Fm → 109 wellbores · 272.3 m core
- Fuglen Fm → 108 wellbores · 169.9 m core
- Kolje Fm → 93 wellbores · 24.8 m core
- Klippfisk Fm → 8 wellbores
Most core
34 WELLBORES · BY METRES CORED IN THE UNIT
View all 34 wellbores cored in Adventdalen Gp, core by core →On the map →
Latest wellbores to meet it
BY ENTRY DATE
Description
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
Name The group is named after a major valley in central Spitsbergen.
Type area The type area is Central Spitsbergen.
Thickness Thickness on Svalbard: ca. 750-1600 m, known thickness on the Barents Sea Shelf: ca. 1000-1750 m.
Lithology The Adventdalen Group comprises shales, siltstones and sandstones of Late Jurassic to Early Cretaceous age in Svalbard and throughout the Barents Sea Shelf.
Distribution The group is widely exposed along the margins of the Central Tertiary Basin on Spitsbergen, as well as in eastern Spitsbergen (Sabine Land) and on Kong Karls Land. It continues across the Barents Sea Shelf to the Bjarmeland Platform, around the Loppa High and into the Hammerfest and Nordkapp basins. The Adventdalen Group was eroded down to varying levels during the late Cretaceous uplift. On the southem Barents Sea Shelf, this hiatus comprises only the Cenomanian and part of the Turonian, while the entire Upper Cretaceous is lacking on Svalbard.
Age Late Jurassic - Early Cretaceous.
Depositional environment The group is dominated by dark marine mudstones, but includes also deltaic and shelf sandstones as well as thin, condensed carbonate beds. Important hydrocarbon source rocks occur in the Upper Jurassic succession, both in Svalbard and in the Barents Sea (Agardhfjellet, <a href="javascript:void(window.open('https://factpages.sodir.no/factpages/Default.aspx?nav1=strat&nav2=PageView|Litho|Formations&nav3=47&menu=No','popup','width=700,height=800,resizable=yes,scrollbars=
This unit on Sodir FactPages →
About this data
Norwegian Offshore Directorate (Sodir) FactPages, mirrored nightly and used under the Norwegian Licence for Open Government Data (NLOD). Tops and cored lengths are the Directorate's, per wellbore and unit; the percentiles are computed from those tops and are depths along the wellbore, not true vertical depth.
Developers: this page as JSON is GET /v1/data/norway/formations/adventdalen-gp, documented in the API reference.