Sandstone (BE.22.0003)
Find location
- Rock determination
- Sedimentary rock > Siliciclastic > Sandstone > Quartzarenite
- Chronostratigraphy
- Phanerozoic; Cenozoic; Paleogene; Oligocene
- Lithostratigraphy
- Borgloon Formation; Alden Biesen Member
- Rock name
- Quartzarenitic sandstone
- Rock synonyms
- groundwater silcrete; Potamides quartzite
- Additional information
- Early Oligocene
Find location
- Site type
- Natural geological outcrop
- Location
- Belgium; Limburg (BE); Heers
- Site name
- Mettekoven, De Knoppel
- Excavation or Survey Team
- Dr. Roland Dreesen
- Additional contextual information
- found on a field, part of the nature reserve 'De Knoppel'
- Natural color
- white to very pale orange
- Aged color
- rusty brown (due to soiling by loam)
- Components
-
quartz; secondary porosity due to dissolution of macrofossils (moulding porosity); turitellid gastropods ("Potamides"-type dominant) and mollusks
- Texture
- medium grained; well-sorted
- Structure
- Weathering
- patina/color due to soiling
- Diagnostic features
- mouldic porosity due to presence of numerous dissolved gastropod shells ("Potamides")
- Additional information
- Flepostore inventory nr.
- ARCH3.L1.A16
- Original inventory nr.
- A0101
- Collection
- Archaeological Department, Ghent University
- Type
- Covered thin section
- Comparable thin section(s)
- Components
- quartz-rich sand grains, almost exclusively composed of monocrystalline quartz, rare polycrystalline quartz (quartzite), besides lithoclasts of chert (flint?); nice overgrowths of silica showing also dust rims; locally mouldic porosity due to dissolved mollusk shell; contamination (illuviation?) by soil particles
- Texture
- well-sorted and rounded quartz-rich sand grains
- Structure
- Weathering
- Diagnostic features
- Additional information
- Sample type
- Rock sample
- Inventory number
- BE.22.0003
- Collection
- Archaeological Department, Ghent University
- Donating institute/person
- Dr. Roland Dreesen
- Host collection
- Other samples available
- No
- Sample collection method
- Field Sampling (clay/rock)
Cite this page as: Flepostore - https://flepostore.ugent.be/rock/be-22-0003
Last modified: 2024-04-27.