Mount Amiata is the largest
[ of the ]lava dome
In volcanology, a lava dome is a circular mound-shaped protrusion resulting from the slow extrusion of viscous lava from a volcano. Dome-building eruptions are common, particularly in convergent plate boundary settings. Around 6% of eruptions ...
s in the Amiata lava dome complex located about 20 km northwest of Lake Bolsena
Lake Bolsena ( it, Lago di Bolsena) is a lake of volcanic origin in the northern part of the province of Viterbo called ''Alto Lazio'' ("Upper Latium") or ''Tuscia'' in central Italy. It is the largest volcanic lake in Europe. Roman histori ...
in the southern Tuscany
it, Toscano (man) it, Toscana (woman)
, population_note =
, population_blank1_title =
, population_blank1 =
, demographics_type1 = Citizenship
, demographics1_footnotes =
, demographics1_title1 = Italian
, demogra ...
region of Italy. It is located within the provinces of Grosseto
Grosseto () is a city and ''comune'' in the central Italian region of Tuscany, the capital of the Province of Grosseto. The city lies from the Tyrrhenian Sea, in the Maremma, at the centre of an alluvial plain on the Ombrone river.
It is the ...
and Siena
Siena ( , ; lat, Sena Iulia) is a city in Tuscany, Italy. It is the capital of the province of Siena.
The city is historically linked to commercial and banking activities, having been a major banking center until the 13th and 14th centur ...
.
Geology
Mount Amiata (La Vetta) is a compound lava dome with a trachytic
Trachyte () is an extrusive igneous rock composed mostly of alkali feldspar. It is usually light-colored and aphanitic (fine-grained), with minor amounts of mafic minerals, and is formed by the rapid cooling of lava enriched with silica and alk ...
lava flow
Lava is molten or partially molten rock (magma) that has been expelled from the interior of a terrestrial planet (such as Earth) or a moon onto its surface. Lava may be erupted at a volcano or through a fracture in the crust, on land or un ...
that extends to the east. It is part of the larger Amiata complex volcano. A massive viscous trachydacitic lava flow, 5 km long and 4 km wide, is part of the basal complex and extends from beneath the southern base of Corno de Bellaria dome. Radiometric dates indicate that the Amiata complex had a major eruptive episode about 300,000 years ago. No eruptive activity has occurred at Amiata during the Holocene
The Holocene ( ) is the current geological epoch. It began approximately 11,650 cal years Before Present (), after the Last Glacial Period, which concluded with the Holocene glacial retreat. The Holocene and the preceding Pleistocene togeth ...
, but thermal activity including cinnabar
Cinnabar (), or cinnabarite (), from the grc, κιννάβαρι (), is the bright scarlet to brick-red form of mercury(II) sulfide (HgS). It is the most common source ore for refining elemental mercury and is the historic source for the bri ...
mineralization continues at a geothermal field near the town of Bagnore
Bagnore () is a village in Tuscany, central Italy, administratively a frazione of the comune of Santa Fiora, province of Grosseto. At the time of the 2001 census its population amounted to 420.
Bagnore is about 60 km from Grosseto and 2&nb ...
, at the SW end of the dome complex.[
]
Economy
The main economical resources of the Amiata region are chestnut
The chestnuts are the deciduous trees and shrubs in the genus ''Castanea'', in the beech family Fagaceae. They are native to temperate regions of the Northern Hemisphere.
The name also refers to the edible nuts they produce.
The unrel ...
s, timber and, increasingly, tourism
Tourism is travel for pleasure or business; also the theory and practice of touring (disambiguation), touring, the business of attracting, accommodating, and entertaining tourists, and the business of operating tour (disambiguation), tours. Th ...
(ski resorts include the peak area, Prato delle Macinaie, Prato della Contessa, Rifugio Cantore and Pian della Marsiliana). The lower areas are characterized by olive trees and vine
A vine (Latin ''vīnea'' "grapevine", "vineyard", from ''vīnum'' "wine") is any plant with a growth habit of trailing or scandent (that is, climbing) stems, lianas or runners. The word ''vine'' can also refer to such stems or runners themsel ...
s. Other vegetation include beech
Beech (''Fagus'') is a genus of deciduous trees in the family Fagaceae, native to temperate Europe, Asia, and North America. Recent classifications recognize 10 to 13 species in two distinct subgenera, ''Engleriana'' and ''Fagus''. The ''Engl ...
and fir. From the 1870s until around 1980 cinnabar
Cinnabar (), or cinnabarite (), from the grc, κιννάβαρι (), is the bright scarlet to brick-red form of mercury(II) sulfide (HgS). It is the most common source ore for refining elemental mercury and is the historic source for the bri ...
was extracted here.
The region is included in the comuni of Abbadia San Salvatore, Arcidosso, Castel del Piano, Piancastagnaio, Santa Fiora
Santa Fiora is a '' comune'' (municipality) in the Province of Grosseto, in the Italian region of Tuscany, located about southeast of Florence and about east of Grosseto. Santa Fiora borders the following municipalities: Abbadia San Salvator ...
and Seggiano, all located between 600 and 800 metres of altitude.
See also
*List of volcanoes in Italy
This is a list of active and extinct volcanoes in Italy.
See also
*Volcanology of Italy
*List of mountains of Italy
This article contains a sortable table listing mountains of Italy. All mountain heights and prominences on the list are f ...
References
External links
Monte Amiata museum of mercury mines
Museum of Mines of Mercury Monte Amiata at Google Cultural Institute
Mountains of Tuscany
Volcanoes of Italy
Mercury mining
Pleistocene lava domes
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