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Cima di Gagnone, Ticino, Switzerlandi
| Regional Level Types | |
|---|---|
| Cima di Gagnone | - not defined - |
| Ticino | Canton |
| Switzerland | Country |
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Latitude & Longitude (WGS84):
46° 19' 36'' North , 8° 50' 49'' East
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Frasco | 116 (2016) | 4.2km |
| Brione | 225 (2016) | 5.5km |
| Bodio | 1,001 (2013) | 7.5km |
| Lavertezzo | 1,168 (2013) | 7.6km |
| Giornico | 964 (2013) | 8.5km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Club Cercatori di Minerali e Fossili Ticino | Viganello, Ticino | 36km |
Name(s) in local language(s):
Cima di Gagnone, Val Verzasca, Ticino (Tessin), Svizzera (Schweiz; Suisse)
At Cima di Gagnone ultramafic rocks form elongated lens-shaped bodies tens to hundreds of meters in size. They are enclosed within semi-pelitic and quartzo-feldspathic gneiss. Two main types of ultramafic rocks are described; garnet peridotite and chlorite harzburgite. They represent an eclogite facies breakdown of hydrated peridotites (serpentinites). Scambelluri et al. (2014) suggest that the hydration is a result of exposure to both seawater (pre-subduction) and water from crustal reservoirs (metasediments) during subduction.
The chlorite harzburgite contains a peak-condition mineral assemblage of olivine (67%,) orthopyroxene (25%), chlorite (5%), F-bearing Ti-hydroxylclinohumite (3%), whereas the garnet peridotite contains olivine, orthopyroxene, magnesio-hornblende, garnet, clinopyroxene and ilmenite. Titanian hydroxylclinohumite occurs in both rock types but are most common in the chlorite harzburgite. In the garnet peridotite, hydroxylclinohumite is normally broken down to olivine + ilmenite during the retrograde phase.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Almandine-Pyrope Series' |
| ⓘ Cummingtonite Formula: ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Diopside var. Chromium-bearing Diopside Formula: Ca(Mg,Cr)Si2O6 |
| ⓘ Enstatite Formula: Mg2Si2O6 |
| ⓘ Forsterite Formula: Mg2SiO4 |
| ⓘ 'Humite Group' Description: Investigations of "olivine" by TEM revealed humite-type layers Mg(OH,F)2 as lattice planar faults in the olivine structure. The degree of ordering of these humite type layers was not given in the reference. |
| ⓘ Hydroxylclinohumite Formula: Mg9(SiO4)4(OH)2 Description: Titanian hydroxylclinohumite occurs predominantly in the central parts of olivine megacrysts. Olivine and hydroxylclinohumite are intergrown and forms irregular polysynthetic twins and cannot readily be distinguished. The hydroxylclinohumite contains up to .318 apfu Ti, and appreciable amounts of F (up to 2.12 wt %), yet still well within the chemical boundaries of hydroxylclinohumite. References: Scambelluri, Marco, Pettke, Thomas, Rampone, Elisabetta, Godard, Marguerite, Reusser, Eric (2014) Petrology and Trace Element Budgets of High-pressure Peridotites Indicate Subduction Dehydration of Serpentinized Mantle (Cima di Gagnone, Central Alps, Switzerland) Journal of Petrology, 55 (3) 459-498 doi:10.1093/petrology/egt068 |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| Group 9 - Silicates | |||
| ⓘ | Forsterite | 9.AC.05 | Mg2SiO4 |
| ⓘ | Hydroxylclinohumite | 9.AF.55 | Mg9(SiO4)4(OH)2 |
| ⓘ | Enstatite | 9.DA.05 | Mg2Si2O6 |
| ⓘ | Diopside var. Chromium-bearing Diopside | 9.DA.15 | Ca(Mg,Cr)Si2O6 |
| ⓘ | 9.DA.15 | CaMgSi2O6 | |
| ⓘ | Cummingtonite | 9.DE.05 | ◻{Mg2}{Mg5}(Si8O22)(OH)2 |
| Unclassified | |||
| ⓘ | 'Almandine-Pyrope Series' | - | |
| ⓘ | 'Humite Group' | - | |
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
Eurasian PlateTectonic Plate
- AlpsAccretionary Complex
EuropeContinent
- The AlpsMountain Range
Switzerland
- Ticino
- Verzasca ValleyValley
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References
www.earth.edu.waseda.ac.jp (n.d.) http://www.earth.edu.waseda.ac.jp/uhpm/cdrom/abstracts/3p07/3p07.pdf
www.earth.edu.waseda.ac.jp (n.d.) http://www.earth.edu.waseda.ac.jp/uhpm/cdrom/abstracts/3p05/3p05.pdf.
Scambelluri, Marco, Pettke, Thomas, Rampone, Elisabetta, Godard, Marguerite, Reusser, Eric (2014) Petrology and Trace Element Budgets of High-pressure Peridotites Indicate Subduction Dehydration of Serpentinized Mantle (Cima di Gagnone, Central Alps, Switzerland) Journal of Petrology, 55 (3) 459-498 doi:10.1093/petrology/egt068
Cima di Gagnone, Ticino, Switzerland