General Characteristics

County (administration): Hradec Králové Region
District (town): Rychnov nad Kněžnou
Cadastre: Lukavice u Rychnova nad Kněžnou
Map 1 : 50 000 (sheet No): 1413, 14132
Geological region: Czech Cretaceous Basin - E-Bohemian and W-Moravian Cretaceous; Chrudim Cretaceous; Králíky Furrow; Police Basin
Accessibility: - special entry permit necessary (military area, quarry, private land)
Technical object: mine
ID : 3322

Geology

Short characteristics of the site: Bohemian Cretaceous Basin. The largest deposit of laterites up to lateritic bauxites opened by shallow mining workings. System oof galleries and underground workings. This laterite is of Cretaceous age and was formed by weathering of a pre-Cretaceous bedrock and enrichment of a residue by Fe and Al. Fe and Al minerals were studied in detail. Laterite was exploited as a poor iron ore containing 20 - 25 per cent of iron oxide. Elevated amount of TiO2 (4.8 per cent) is also interesting. Part of galleries, about 300 m, is accessible.
Regional geologic unit: Bohemian Massif - superficial deposits and post-Variscian magmatites - Cretaceous - Czech Cretaceous Basin
Stratigraphy: mezozoikum - křída
Subject: economic geology, petrology, mining and mining impacts
Geological phenomenon: karst, ore mineralization
Genesis: sedimentary, chemogenetic, anthropogenic (anthropogenic activity)
Rock: marlstone, laterite

Territorial conservation

Level of protection: Registered interesting geological localities
Protection of a geol. phenomenon: C - Geological phenomenon is the reason for a registration in the database of CGS
Conflicts of interests: without conflicts

References

KONTA J. (1954): Příspěvek k petrografii a genesi rychnovského bauxitu. Acta Universitatis Carolinae, Geologica, 9, 37-63.; POKORNÝ R. a kol.(2004): Historie hornictví na Rychnovsku a současný stav vybraných starých důlních děl. Acta Musei Richnoviensis, Sect. Natur., 11/1, 1-56; POKORNÝ R. (2008): Historie hornictví na Rychnovsku II. Acta Musei Richnoviensis, Sect. Natur., 15/3–4: 85–146.

Elaboration and Updating

Elaborated by: Pokorný Richard, 20.07.11
Updated by: Kukal Zdeněk 23.10.12

Citation

The database Significant geological localities of the Czech Republic: 3322 [online]. Prague: Czech Geological Survey, 1998 [cit. 2024-04-25]. Available from: http:// lokality.geology.cz/3322.

Location in map: