The Rotondo Granite is a late Variscan granitic intrusion located in the Saint-Gotthard Massif in the Swiss Alps. Its name comes from the Pizzo Rotondo.
Description
It shows as a fine to medium-grained granite. Unlike other granitic intrusions present in the Gotthard Massif (Gamsboden Granite and Fibbia Granite), the foliation is only very weakly developed [1] and is mostly visible in ductile shear zones. Radiometric dating showed an age of 294 Ma. [2] On surface, it outcrops over an area of 20–25 km2. [3]
The Rotondo Granite forms at least part of Monte Prosa. [4]
Bedretto Underground Laboratory for Geoenergies
The Bedretto Underground Laboratory for Geoenergies which is located in the Bedretto Tunnel (in German "Bedretto-Fenster"), is performing research on deep geothermal energy in the Rotondo Granite. The underground laboratory is operated by the Swiss Federal Institute of Technology in Zürich ( ETH Zurich). The site was selected, among other reasons, because of the similarities that this rock shows with basement rocks that are expected to be encountered at a depth of 4–5 km below the Swiss Plateau.
See also
References
- ^ Lützenkirchen, V., & Loew, S. (2011). Late Alpine brittle faulting in the Rotondo granite (Switzerland): deformation mechanisms and fault evolution. Swiss Journal of Geosciences, 104(1), 31-54.
- ^ Sergeev, S. A., & Steiger, R. H. (1995). Caledonian and Variscan granitoids of the Gotthard massif: new geochronological and geochemical results, Schweizerische Mineralogische und Petrographische Mitteilungen, 75, 315-316.
- ^ Labhart, T. (2005). Erläuterungen Zum Geologischen Atlas Des Schweiz 1:25000, Val Bedretto, Atlasblatt 68. ed. Bundesamt für Wasser und Geologie.
- ^ Hafner, Stefan S.; Loida, Andreas (1980). "Origin and variation of the microcline triclinicity in granitic bodies of the Central Alps". Eclogae Geologicae Helvetiae. 73 (2): 563.
The Rotondo Granite is a late Variscan granitic intrusion located in the Saint-Gotthard Massif in the Swiss Alps. Its name comes from the Pizzo Rotondo.
Description
It shows as a fine to medium-grained granite. Unlike other granitic intrusions present in the Gotthard Massif (Gamsboden Granite and Fibbia Granite), the foliation is only very weakly developed [1] and is mostly visible in ductile shear zones. Radiometric dating showed an age of 294 Ma. [2] On surface, it outcrops over an area of 20–25 km2. [3]
The Rotondo Granite forms at least part of Monte Prosa. [4]
Bedretto Underground Laboratory for Geoenergies
The Bedretto Underground Laboratory for Geoenergies which is located in the Bedretto Tunnel (in German "Bedretto-Fenster"), is performing research on deep geothermal energy in the Rotondo Granite. The underground laboratory is operated by the Swiss Federal Institute of Technology in Zürich ( ETH Zurich). The site was selected, among other reasons, because of the similarities that this rock shows with basement rocks that are expected to be encountered at a depth of 4–5 km below the Swiss Plateau.
See also
References
- ^ Lützenkirchen, V., & Loew, S. (2011). Late Alpine brittle faulting in the Rotondo granite (Switzerland): deformation mechanisms and fault evolution. Swiss Journal of Geosciences, 104(1), 31-54.
- ^ Sergeev, S. A., & Steiger, R. H. (1995). Caledonian and Variscan granitoids of the Gotthard massif: new geochronological and geochemical results, Schweizerische Mineralogische und Petrographische Mitteilungen, 75, 315-316.
- ^ Labhart, T. (2005). Erläuterungen Zum Geologischen Atlas Des Schweiz 1:25000, Val Bedretto, Atlasblatt 68. ed. Bundesamt für Wasser und Geologie.
- ^ Hafner, Stefan S.; Loida, Andreas (1980). "Origin and variation of the microcline triclinicity in granitic bodies of the Central Alps". Eclogae Geologicae Helvetiae. 73 (2): 563.