The Monti Sabatini is a geologic region in

Lazio Lazio or Latium ( or ; ; la, Latium, ) is one of the 20 Regions of Italy, administrative regions of Italy. Situated in the Central Italy, central peninsular section of the country, it has 5,714,882 inhabitants – making it the second most popula ...

, central Italy, a remnant of intense

volcanism Volcanism, vulcanism or volcanicity is the phenomenon of eruption of molten rock (magma) onto the surface of the Earth or a solid-surface planet or moon, where lava, pyroclastics, and volcanic gases erupt through a break in the surface called a ...

which started ca. 600,000 years ago, mainly with

pyroclastic Pyroclastic rocks (derived from the el, πῦρ, links=no, meaning fire; and , meaning broken) are clastic rocks composed of rock fragments produced and ejected by explosive volcanic eruptions. The individual rock fragments are known as pyroc ...

and

maar A maar is a broad, low- relief volcanic crater caused by a phreatomagmatic eruption (an explosion which occurs when groundwater comes into contact with hot lava or magma). A maar characteristically fills with water to form a relatively shallo ...

forming

eruption Several types of volcanic eruptions—during which lava, tephra ( ash, lapilli, volcanic bombs and volcanic blocks), and assorted gases are expelled from a volcanic vent or fissure—have been distinguished by volcanologists. These are often ...

s which continued until 100,000 years ago. The mountains are part of the Lazio's

Anti-Apennines The Apennines or Apennine Mountains (; grc-gre, links=no, Ἀπέννινα ὄρη or Ἀπέννινον ὄρος; la, Appenninus or – a singular with plural meaning;''Apenninus'' (Greek or ) has the form of an adjective, which wou ...

. Included between the Monti Sabatini is the

Lake Bracciano Lake Bracciano ( it, Lago di Bracciano) is a lake of volcanic origin in the Italian region of Lazio, northwest of Rome. It is the second largest lake in the region (second only to Lake Bolsena) and one of the major lakes of Italy. It has a circ ...

, which is a volcanotectonic depression formed about 3.7 Ma, and the

Lake Martignano Lake Martignano (Italian: Lago di Martignano), is a small lake in Lazio, Italy north-north-west of Rome, in an extinct crater or maar. Administratively its coast is divided amongst the municipalities of Rome, Anguillara Sabazia and Campagnano d ...

. The

sedimentary Sedimentary rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at Earth's surface, followed by cementation. Sedimentation is the collective name for processes that cause these particles t ...

base of the Sabatini complex lies buried under of

volcanic ash Volcanic ash consists of fragments of rock, mineral crystals, and volcanic glass, created during volcanic eruptions and measuring less than 2 mm (0.079 inches) in diameter. The term volcanic ash is also often loosely used to refer ...

and

rock Rock most often refers to: * Rock (geology), a naturally occurring solid aggregate of minerals or mineraloids * Rock music, a genre of popular music Rock or Rocks may also refer to: Places United Kingdom * Rock, Caerphilly, a location in Wales ...

s. The highest point is Monte Rocca Romana (a postcaldera

stratocone A stratovolcano, also known as a composite volcano, is a conical volcano built up by many layers (strata) of hardened lava and tephra. Unlike shield volcanoes, stratovolcanoes are characterized by a steep profile with a summit crater and peri ...

), at . Other mountains in the area include

Monti della Tolfa The Monti della Tolfa (or Tolfa Mountains) are a volcanic group in the Anti-Apennines of the northern part of the Lazio region of Central Italy. They are bounded by the Tyrrhenian Sea coast to the west, by the Monti Sabatini to the east, and by ...

Monte Soratte Monte Soratte (ancient: ''Soracte'') is a mountain ridge in the Metropolitan City of Rome, central Italy. It is a narrow, isolated limestone ridge with a length of and six peaks. Located some south east of Civita Castellana and c. north of R ...

, and more southwards, by the

Monti Cornicolani Monti may refer to: __NOTOC__ People * Monti (given name) * Monti (surname) Places *Monti, Lazio, the first rione (historic district) of Rome, Italy *Monti, Sardinia, Italy, a ''comune'' and town *Monti, Iowa, United States, a town See also *Monte ...

External links

Sabatini Volcanic Complex

*
{{Authority control Volcanoes of Italy Maars of Italy Sabatini Sabatini Metropolitan City of Rome Capital Geographical, historical and cultural regions of Italy Falisci