Sandstone (FR.22.0004)
Find location
- Rock determination
- Sedimentary rock > Siliciclastic > Sandstone > Calcareous sandstone
- Chronostratigraphy
- Phanerozoic; Mesozoic; Jurassic; Upper Jurassic
- Lithostratigraphy
- Grès de Chatillon Formation / Grès de la Crèche Formation
- Rock name
- Boulonnais calcareous sandstone
- Rock synonyms
- grès bâtard; faux grès; grès Portlandien; pierre de Boulogne
- Additional information
- Age: Kimmeridgian/Tithonian (formerly Portlandian age)
Find location
- Site type
- Natural geological outcrop
- Location
- France; Pas-de-Calais; Audresselles
- Region
- Boulonnais
- Site name
- Cran Noirda
- 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
- brownish grey
- Aged color
- beige
- Components
- minute shell debris; small clasts of fossil charcoal
- Texture
- medium grained
- Structure
- Weathering
- patina
- Diagnostic features
- Additional information
- NFR B6
- Flepostore inventory nr.
- ARCH3.L1.A12
- Original inventory nr.
- 40627
- Collection
- Archaeological Department, Ghent University
- Type
- Covered thin section
- Comparable thin section(s)
- Components
- dominantly monocrystalline quartz, rare muscovite and zircon. Rare glauconite and phosphate grains. Numerous longitudinal bioclassts (mainly shell debris, also echinoderms). Numerous irregular black allochems with cellular structure (charcoal). Small rounded intraclasts of mudstone. Poekilotopic calcite cement.
- Texture
- badly sorted, angular to subrounded sand grains; Grain size: 50-350 microns
- Structure
- Weathering
- Diagnostic features
- calcareous sandstone with shell debris and black charcoal fragments
- Additional information
- Sample type
- Rock sample
- Inventory number
- FR.22.0004
- Collection
- Archaeological Department, Ghent University
- Donating institute/person
- Host collection
- Other samples available
- Yes
- Sample collection method
- Field Sampling (clay/rock)
Debonne & Dreesen 2015
- Full reference
-
Debonne V. & Dreesen R. 2015. Stenen immigranten in de Zwinstreek. Natuursteen in de Onze -Lieve-Vrouwhemelvaartkerk in Damme. Relicta 12: 149-180.
- File
- Link
Cite this page as: Flepostore - https://flepostore.ugent.be/rock/fr-22-0004
Last modified: 2024-04-29.