Limestone (BE.24.0017)
Find location
- Rock determination
- Sedimentary rock > Biochemical > Carbonate rock > Limestone > Sandy limestone
- Chronostratigraphy
- Phanerozoic; Cenozoic; Paleogene; Eocene; Lutetian
- Lithostratigraphy
- Zenne Group; Lede Formation
- Rock name
- Lede stone
- Rock synonyms
- Balegem(-se) stone; Ledia(a)n(se) stone; Dender stone; witte arduin/Vlaamse arduin
- Additional information
Find location
- Site type
- Quarry
- Location
- Belgium; Oost-Vlaanderen; Oosterzele
- Site name
- Balegem (Balegro quarry)
- Excavation or Survey Team
- Prof. Dr. Tim Dekock
- Additional contextual information
- Natural color
- fresh surface: pale yellow to greenish yellow; pale to light grey if slightly weathered
- Aged color
- ochre to brown
- Components
- detrital fraction of quartz and glauconite together with carbonate allochems in a calcite matrix/cement; varying cementation degree; characteristic macrofossils (foraminifera Nummulites variolarius and serpulid Ditrupa strangulata); casts of Turritella gastropod (not common);
- Texture
- siliclastic composition is dominated by a bimodal quartz population (up to 40 vol.%) of subangular very fine sand supplemented with rounded medium sized sand
- Structure
- layered with fossil-rich horizons (lumachelle layers)
- Weathering
- when exposed to the atmosphere, an ochre-like patina is formed (oxidation of glauconite and iron-rich carbonates); gypsum crust formation (not applicable for this sample)
- Diagnostic features
- characteristic macrofossils; ochre-like patina; bimodal quartz grain size distribution (some quartz granules of up to 1-3 mm)
- Additional information
- pictures show dry and whet surfaces
- Flepostore inventory nr.
- GEOL1.L1.A12
- Original inventory nr.
- 33460
- Collection
- Geological Department, Ghent University
- Type
- Covered thin section
- Comparable thin section(s)
- Components
- siliciclastic fraction of quartz and to a lesser extent glauconite; various fragments of microfossils (besides the characteristic macrofossils Nummulites variolarius and Ditrupa strangulata); iron-rich micritic to coarse sparitic matrix with a substantial silt and clay fraction
- Texture
- both sub-angular and rounded quartz grains; bimodal grain size distribution (very fine-medium)
- Structure
- Weathering
- oxidation of glauconite
- Diagnostic features
- sandy limestone to calcareous sandstone; Nummulites variolarius; bimodal quartz grains (very fine - medium)
- Additional information
- Sample type
- Rock sample
- Inventory number
- BE.24.0017
- Collection
- Geological Department, Ghent University
- Donating institute/person
- Host collection
- Other samples available
- No
- Sample collection method
- Field Sampling (clay/rock)
De Kock 2016
- Full reference
-
De Kock T. 2016. The properties and performance of Lede stone in cultural heritage: new insights for its preservation and replacement. Unpublished Phd Thesis, Universiteit Gent. Gent.
- Link
De Kock et al. 2015
- Full reference
-
De Kock T., Boone M., Dewanckele J., De Ceukelaire M. & Cnudde V. 2015. Lede Stone: A potential “Global Heritage Stone Resource” from Belgium. Episodes 38, 2: 91-96.
- Link
Laga et al. 2001
- Full reference
-
Laga P., Louwye S. & Geets S. 2001. Paleogene and Neogene lithostratigraphic units (Belgium). Geologica Belgica 4, 1-2: 135-152.
- Link
Cite this page as: Flepostore - https://flepostore.ugent.be/rock/be-24-0017
Last modified: 2024-04-25.