Sandstone (FR.22.0008)
Find location
- Rock determination
- Sedimentary rock > Siliciclastic > Sandstone > Calcareous sandstone
- Chronostratigraphy
- Phanerozoic; Mesozoic; Jurassic
- Lithostratigraphy
- Grès de la Crèche Formation
- Rock name
- Boulonnais calcareous sandstone
- Rock synonyms
- Baincthun stone
- Additional information
Find location
- Site type
- Natural geological outcrop
- Location
- France; Pas-de-Calais; Wimereux
- Region
- Boulonnais
- Site name
- Pointe aux Oies
- Excavation or Survey Team
- Dr. R. Dreesen and Prof. W. De Clercq
- Additional contextual information
- This sample was collected at the foot of the coastal cliffs
- Natural color
- blue grey
- Aged color
- yellowish grey
- Components
- fossils; calcareous cement; secondary porosity
- Texture
- fine
- Structure
- Weathering
- patina
- Diagnostic features
- local moldic porosity due to dissolution of fossil shells
- Additional information
- NFR B14
- Flepostore inventory nr.
- ARCH3.L1.A1
- Original inventory nr.
- 40606
- Collection
- Archaeological Department, Ghent University
- Type
- Covered thin section
- Comparable thin section(s)
- Components
- monocrystalline quartz (dominant), rare feldspar, rare zircon. Rare fragments of phosphate (fishbone), shells and echinoderms. Frequent glauconite grains. Calcite cement (mosaic)
- Texture
- well-sorted, subangular to angular sand grains. Grain size: fine: average 50 microns
- Structure
- homogenous
- Weathering
- oxidized glauconite
- Diagnostic features
- glauconite-bearing calcareous sandstone
- Additional information
- Sample type
- Rock sample
- Inventory number
- FR.22.0008
- Collection
- Archaeological Department, Ghent University
- Donating institute/person
- Host collection
- Other samples available
- Yes
- Sample collection method
- Field Sampling (clay/rock)
Cite this page as: Flepostore - https://flepostore.ugent.be/rock/fr-22-0008
Last modified: 2024-04-24.