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Sorano tuff quarries, Sorano, Grosseto Province, Tuscany, Italyi
Regional Level Types
Sorano tuff quarriesGroup of Quarries
SoranoMunicipality
Grosseto ProvinceProvince
TuscanyRegion
ItalyCountry

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Key
Latitude & Longitude (WGS84):
42° 40' 41'' North , 11° 41' 59'' East
Latitude & Longitude (decimal):
Locality type:
Group of Quarries
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Sorano779 (2014)1.6km
Sovana138 (2014)5.0km
Pitigliano3,040 (2014)5.1km
San Quirico476 (2014)5.3km
Il Casone130 (2014)6.7km
Other Languages:
Italian:
Cave di tufo di Sorano, Sorano, Provincia di Grosseto, Toscana, Italia


Quarries of yellow zeolitic tuff near Sorano at Pian di Rena [Piandirena and Campimaglia quarries] (see coordinates) and also at San Valentino-Poggio Corto, Poggio Ceccarello, Castell’Ottieri-Poggio Puriballo, Podere Ronchetto, Podere Riparella, San Giovanni delle Contee, and Podere dell'Aiaccia.

The yellow tuff, described as "Tufo Giallo Litoide" (Nappi, 1969), "D Ignimbrite" (Sparks, 1975) or "Sorano formation" (Vezzoli et al., 1987), is a very fine-grained trachytic ignimbrite attaining a few tens of meters in thickness, emplaced during Plinian eruptions in the Latera volcanic complex. This formation locally contain several thin beds composed of pumice with reverse size-grading. The Sorano formation also gave rise to deep channels carved into the underlying formations. The small pumices enclosed in the ash-sized matrix are rounded and contain spherical vesicles. From a volcanological point of view, this formation is related to an emplacement mechanism involving water-magma interaction, as it is classified as pyroclastic flow, characterized by an abundant fluid phase and emplacement temperatures of a few hundred degrees. Furthermore, it commonly was extensively zeolitized, leading to crystallization of predominant chabazite by the transformation of trachytic and/or phonolitic primary glass. Authigenic chabazite from Pian di Rena is characterized by a Si/Al ratio of 2.19, a K/Ca ratio of 1.00, and a Na/K ratio of 0.14 (Cappelletti et al., 1999).

Large cavities and fractures in yellow tuff are lined with amber-coloured calcite, whose crystals can sometimes attain 8 cm in length. This calcite typically fluoresces yellow under UV light (Stoppani & Curti, 1982)

Regions containing this locality

Eurasian PlateTectonic Plate
EuropeContinent

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Standard Detailed Strunz Dana Chemical Elements

Mineral List


1 valid mineral.

Rock Types Recorded

Note: this is a very new system on mindat.org and 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:

Calcite
Formula: CaCO3
Reference: Stoppani, F.S., and Curti, E. (1982) I minerali del Lazio. Editoriale Olimpia, Firenze, 291 pp.
'Chabazite'
Reference: Cappelletti, P., Langella, A., Colella, A., and De' Gennaro, R. (1999) Mineralogical and technical features of zeolite deposits from northern Latium volcanic district. Periodico di Mineralogia, 68, 127-144.
'Feldspar Group'
Reference: Cappelletti, P., Langella, A., Colella, A., and De' Gennaro, R. (1999) Mineralogical and technical features of zeolite deposits from northern Latium volcanic district. Periodico di Mineralogia, 68, 127-144.
'Glass'
Reference: Cappelletti, P., Langella, A., Colella, A., and De' Gennaro, R. (1999) Mineralogical and technical features of zeolite deposits from northern Latium volcanic district. Periodico di Mineralogia, 68, 127-144.

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Unclassified Minerals, Rocks, etc.
'Chabazite'-
'Feldspar Group'-
'Glass'-

List of minerals arranged by Dana 8th Edition classification

Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Unclassified Minerals, Mixtures, etc.
'Chabazite'-
'Feldspar Group'-
'Glass'-

List of minerals for each chemical element

CCarbon
C CalciteCaCO3
OOxygen
O CalciteCaCO3
CaCalcium
Ca CalciteCaCO3

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Nappi, G. (1969) Stratigrafia e petrografia dei Vulsini sud-occidentali (Caldera di Latera). Bollettino della Società Geologica Italiana, 88, 171-181.
Sparks R.S.J. (1975) Stratigraphy and geology of the ignimbrites of Vulsini Volcano, Italy. Geologische Rundschau, 64, 497-523.
Stoppani, F.S., and Curti, E. (1982) I minerali del Lazio. Editoriale Olimpia, Firenze, 291 pp.
Vezzoli, L., Conticelli, S ., Innocenti, F., Landi, P., Manetti, P., Palladino, D.M., and Triglia, R. (1987) Stratigraphy of the Latera Volcanic Complex: proposal for a new nomenclature. Periodico di Mineralogia, 56, 89-110.
Cappelletti, P., Langella, A., Colella, A., and De' Gennaro, R. (1999) Mineralogical and technical features of zeolite deposits from northern Latium volcanic district. Periodico di Mineralogia, 68, 127-144.


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