Köfels, Umhausen, Ötz valley, North Tyrol, Tyrol, Austria
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|Latitude & Longitude (WGS84):||47° 14'' South , 10° 3'' East|
|Latitude & Longitude (decimal):||47.120477, 10.917594|
|Name(s) in local language(s):||Köfels, Umhausen, Ötztal, Nordtirol, Tirol, Österreich|
Landslide (8000 years ago), with ductile deformation at very high strain rate in a narrow shear zone: intense friction raised temperature to melting, leading to the formation of a pumiceous glass thin layer.
The glass resulted from friction thermometamorphism of biotite-amphibole gneisses and not from volcanism or shock.
Rock Types RecordedEntries shown in red are rocks recorded for this region.
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2 valid minerals.
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- European Journal of Mineralogy, 1993, 5, 893-902.