The Platta nappe is located in the Central Alps in Grisons, SE Switzerland. It corresponds to a remnant of the Alpine Tethys Ocean-Continent Transition, which formed during late Middle Jurassic when Europe and Adria separated. The Platta nappe is composed by serpentinized peridotites, mafic rocks (including basalts and gabbros) and post-rift sediments.

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Standard Detailed Gallery Strunz Chemical Elements

Mineral List

11 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

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Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Actinolite

Formula: ◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂

References:

Hochscheid, F., Coltat, R., Ulrich, M., Munoz, M., Manatschal, G., & Boulvais, P. (2022). The Sr isotope geochemistry of oceanic ultramafic-hosted mineralizations. Ore Geology Reviews, 144, 104824.

ⓘ Andradite

Formula: Ca₃Fe³⁺₂(SiO₄)₃

References:

ⓘ Andradite var. Hydroandradite

Formula: Ca₃Fe³⁺₂(SiO₄)_3-x(OH)_4x

References:

ⓘ Calcite

Formula: CaCO₃

References:

ⓘ Chalcopyrite

Formula: CuFeS₂

References:

ⓘ 'Chlorite Group'

References:

ⓘ Diopside

Formula: CaMgSi₂O₆

References:

ⓘ Ilvaite

Formula: CaFe³⁺Fe²⁺₂(Si₂O₇)O(OH)

References:

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

ⓘ Pentlandite

Formula: (Ni_xFe_y)_Σ9S₈

References:

ⓘ 'Pumpellyite Subgroup'

Formula: Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A

References:

ⓘ Pyrrhotite

Formula: Fe_1-xS

References:

ⓘ 'Serpentine Subgroup'

Formula: D₃[Si₂O₅](OH)₄

References:

ⓘ Sphalerite

Formula: ZnS

References:

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Pentlandite	2.BB.15	(Ni_xFe_y)_Σ9S₈
ⓘ	Sphalerite	2.CB.05a	ZnS
ⓘ	Chalcopyrite	2.CB.10a	CuFeS₂
ⓘ	Pyrrhotite	2.CC.10	Fe_1-xS
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
Group 9 - Silicates
ⓘ	Andradite	9.AD.25	Ca₃Fe³⁺₂(SiO₄)₃
ⓘ	var. Hydroandradite	9.AD.25	Ca₃Fe³⁺₂(SiO₄)_3-x(OH)_4x
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Ilvaite	9.BE.07	CaFe³⁺Fe²⁺₂(Si₂O₇)O(OH)
ⓘ	Diopside	9.DA.15	CaMgSi₂O₆
ⓘ	Actinolite	9.DE.10	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Unclassified
ⓘ	'Chlorite Group'	-
ⓘ	'Pumpellyite Subgroup'	-	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
ⓘ	'Serpentine Subgroup'	-	D₃[Si₂O₅](OH)₄

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
H	ⓘ Andradite var. Hydroandradite	Ca₃Fe₂³⁺(SiO₄)_3-x(OH)_4x
H	ⓘ Ilvaite	CaFe³⁺Fe₂²⁺(Si₂O₇)O(OH)
H	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
H	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
C	Carbon
C	ⓘ Calcite	CaCO₃
O	Oxygen
O	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
O	ⓘ Andradite	Ca₃Fe₂³⁺(SiO₄)₃
O	ⓘ Calcite	CaCO₃
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Andradite var. Hydroandradite	Ca₃Fe₂³⁺(SiO₄)_3-x(OH)_4x
O	ⓘ Ilvaite	CaFe³⁺Fe₂²⁺(Si₂O₇)O(OH)
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
Mg	Magnesium
Mg	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Mg	ⓘ Diopside	CaMgSi₂O₆
Al	Aluminium
Al	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Si	Silicon
Si	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Si	ⓘ Andradite	Ca₃Fe₂³⁺(SiO₄)₃
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Andradite var. Hydroandradite	Ca₃Fe₂³⁺(SiO₄)_3-x(OH)_4x
Si	ⓘ Ilvaite	CaFe³⁺Fe₂²⁺(Si₂O₇)O(OH)
Si	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Serpentine Subgroup	D₃[Si₂O₅](OH)₄
S	Sulfur
S	ⓘ Chalcopyrite	CuFeS₂
S	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
S	ⓘ Pyrrhotite	Fe_1-xS
S	ⓘ Sphalerite	ZnS
Ca	Calcium
Ca	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Ca	ⓘ Andradite	Ca₃Fe₂³⁺(SiO₄)₃
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Andradite var. Hydroandradite	Ca₃Fe₂³⁺(SiO₄)_3-x(OH)_4x
Ca	ⓘ Ilvaite	CaFe³⁺Fe₂²⁺(Si₂O₇)O(OH)
Ca	ⓘ Pumpellyite Subgroup	Ca₂XAl₂[Si₂O₆(OH)][SiO₄](OH)₂A
Fe	Iron
Fe	ⓘ Actinolite	◻Ca₂(Mg_4.5-2.5Fe_0.5-2.5)Si₈O₂₂(OH)₂
Fe	ⓘ Andradite	Ca₃Fe₂³⁺(SiO₄)₃
Fe	ⓘ Chalcopyrite	CuFeS₂
Fe	ⓘ Andradite var. Hydroandradite	Ca₃Fe₂³⁺(SiO₄)_3-x(OH)_4x
Fe	ⓘ Ilvaite	CaFe³⁺Fe₂²⁺(Si₂O₇)O(OH)
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Fe	ⓘ Pyrrhotite	Fe_1-xS
Ni	Nickel
Ni	ⓘ Pentlandite	(Ni_xFe_y)_Σ9S₈
Cu	Copper
Cu	ⓘ Chalcopyrite	CuFeS₂
Zn	Zinc
Zn	ⓘ Sphalerite	ZnS
Zr	Zirconium
Zr	ⓘ Zircon	Zr(SiO₄)

Other Regions, Features and Areas containing this locality

Eurasian PlateTectonic Plate

AlpsAccretionary Complex

EuropeContinent

The AlpsMountain Range

Switzerland

Grisons
- Albula Region
  - Oberhalbstein AlpsMountain Range

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References

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Platta nappe, Surses, Albula Region, Grisons, SwitzerlandiRegional Level TypesPlatta nappeOutcrop SursesMunicipality Albula RegionRegion GrisonsCanton SwitzerlandCountry function showexplain() { $("#locexplain").toggle(); if (typeof movemap === "function") movemap(); }

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Mineral List

Rock Types Recorded

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Detailed Mineral List:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

List of minerals for each chemical element

Other Regions, Features and Areas containing this locality

References

Platta nappe, Surses, Albula Region, Grisons, Switzerland i
Regional Level Types
Platta nappe Outcrop
Surses Municipality
Albula Region Region
Grisons Canton
Switzerland Country