Fluorite deposit, Harrachov (Harrachsdorf), Liberec Region, Bohemia (Böhmen; Boehmen), Czech Republic
|Latitude & Longitude (WGS84):||50° 46' 6'' North , 15° 26' 40'' East|
|Latitude & Longitude (decimal):||50.7683333333, 15.4444444444|
Mesozoic fluorite vein deposit associated with faults in Krkonošsko-jizerský massif (porphyritic biotite granite) and on contact with proterozoic rocks (micaschists, phyllites).
Simultaneous transport of Ca and F in saline brines and precipitation of fluorite (CaF2) by T-decrease.
- Reiman, F. & Sattran, W. (1982): Les gîtes filoniens à F, Ba (+ Pb, Zn, Ag, Cu) de Moldava et de Harrachov (Tchécoslovaquie). Bulletin du BRGM (2), section II, no. 3, 309-315. (in French)
- Sejkora, J. (1994): Neue Mineralien von Harrachov und Ryzoviste im Tschechischen Massiv. Mineralien-Welt 5 (5), 68-70.
38 valid minerals.
This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.
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541 - 1000 Ma
|Neoproterozoic intrusive and metamorphic terranes|
Age: Neoproterozoic (541 - 1000 Ma)
Comments: Mixtures of metamorphic and intrusive or plutonic rocks, tracts known as crystalline, migmatitic terranes, moderately to highly metamorphosed rocks of unknown origin with or without intrusions. This classification is inherently prone to variable interpretation, as other compilers might distinguish some packages by their metamorphic or gneissic protoliths, and the associated age ranges may be more variable.
Lithology: Intrusive and metamorphic terranes
Reference: Geological Survey of Canada. Generalized geological map of the world and linked databases. doi:10.4095/195142. Open File 2915d.