Michałkowa (Michelsdorf), Sowie Mts, Sudetes Mts, Lower Silesia (Dolnośląskie), Poland
|Latitude & Longitude (WGS84):||50° 45' North , 16° 27' East|
|Latitude & Longitude (decimal):||50.75000,16.45000|
|Köppen climate type:||Cfb : Temperate oceanic climate|
Located in the middle part of the Góry Sowie Block, ∼70 km SW of Wrocław. Pegmatites in gneisses. Hyperites. Beside listed minerals, an uncertain description of hureaulite also exists.
Many listed minerals are submicroscopic.
Mineral ListMineral list contains entries from the region specified including sub-localities
67 valid minerals. 3 (TL) - type locality of valid minerals.
GeochronologyMineralization age: Devonian : 383 Ma to 370 ± 4 Ma
Important note: This table is based only on rock and mineral ages recorded below and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.
|Geologic Time||Rocks, Minerals and Events|
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.
Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org
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. 
Localities in this Region
- Lower Silesia (Dolnośląskie)
- Sudetes Mts
- Sowie Mts
- Michałkowa (Michelsdorf)
- Sowie Mts
- Sudetes Mts
Websky M. 1868: Über Sarkopsid und Kochelit, zwei neue Mineralien aus Schlesien. Z. Deutsch. Geol. Ges. Bd 20.
Traube H. 1888: Die Minerale Schlesiens. Breslau.
Hintze C. 1897: Handbuch der Mineralogie. Zweiter Band. Silicate und Titanate. Leipzig.
Hintze C. 1933: Handbuch der Mineralogie, Erster Band. Vierte Abteilung. Erste Hälfte. (...) Herausgegeben aus von Gottlob Linck. Berlin und Leipzig.
Hoehne K 1940: Über zwei schlesische Vorkommen von Pentlandit. Chem. d. Erde. Bd 12.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 859.
Maciej Rybicki and Tomasz KrzykawskiContemporary (2014), Orthorhombic 11C pyrrhotite from Michałkowa, Góry Sowie Block, The Sudetes, Poland – preliminary report, Trends in Geoscience. Volume 3, Issue 1, Pages 52–59,