Sandstone (FR.22.0005)

Hand specimen pictures (macro & binocular)

Thin section pictures

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Rock determination
Sedimentary rock > Siliciclastic > Sandstone > Calcareous sandstone
Chronostratigraphy
Phanerozoic; Mesozoic; Jurassic; Upper Jurassic
Lithostratigraphy
Grès de Chatillon Formation
Rock name
Boulonnais calcareous sandstone
Rock synonyms
grès bâtard; faux grès; grès Portlandien; pierre de Boulogne
Additional information

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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
blue grey
Aged color
beige
Components
calcareous cement; white fossil shells and minute dark-grey shell debris (oysters); minute debris (clasts) of fossil charcoal
Texture
fine-grained
Structure
bioturbation; horizontal bedding
Weathering
patina
Diagnostic features
Additional information
NFR B8
Flepostore inventory nr.
ARCH3.L1.A8
Original inventory nr.
40619
Collection
Archaeological Department, Ghent University
Type
Covered thin section
Comparable thin section(s)
Components
mono- and polycrystalline quartz, rare glauconite, rare black charcoal fragments. Rare bioclasts: echinoderm fragments, foraminifera. Poekilotopic calcite cement
Texture
badly to moderately sorted, angular to subrounded sand grains. Grain size: 60-300 microns.
Structure
Weathering
Diagnostic features
calcareous sandstone with rare biocladsts
Additional information
Sample type
Rock sample
Inventory number
FR.22.0005
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.

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Link
Cite this page as: Flepostore - https://flepostore.ugent.be/rock/fr-22-0005
Last modified: 2024-04-26.