The structure of the Monte Amiata volcano-geothermal area (Northern Apennines, Italy): Neogene-Quaternary compression versus extension

Brogi, Andrea

doi:10.1007/s00531-007-0191-1

Cited by 69 publications

(26 citation statements)

References 75 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Similar tectonic framework has been described for the Monte Amiata geothermal area (Acocella and Funiciello 2002;Brogi 2008b;Brogi and Fabbrini 2009) and Vulsini volcanic area (Buonasorte et al 1987;Acocella and Funiciello 2002), suggesting that a widespread tectonic activity affected the southern Tuscany and Northern Latium mainly during the Pleistocene. This paper documents evidences supporting for a Middle-Late Pleistocene tectonic activity also in southern Tuscany, highlighting the fundamental role of the normal and transtensional faults for the hydrothermal circulation and related travertine deposition, and the consequent potential use of travertine deposits for neotectonics studies.…”

Section: Discussionmentioning

confidence: 63%

Studying travertines for neotectonics investigations: Middle–Late Pleistocene syn-tectonic travertine deposition at Serre di Rapolano (Northern Apennines, Italy)

Brogi

Capezzuoli

Aqué

et al. 2009

Int J Earth Sci (Geol Rundsch)

Self Cite

View full text Add to dashboard Cite

Middle-Late Pleistocene tectonic activity has been inferred through studies on travertine deposits exposed in a tract of the hinterland Northern Apennines. A detailed study on the relationships between tectonics and travertine deposition coupled with 230 Th/ 234 U age determination of travertines at Cava Oliviera quarry, located close to Serre di Rapolano village (southern Tuscany, Northern Apennines), allowed us to recognise Pleistocene faults, whose activity has been referred to 157-24 ka, at least. Travertine deposition was tectonically controlled by WSW-ENE striking, oblique and normal faults, associated to a main fault (named as the Violante Fault). This structure dissected a regional normal fault (known as the Rapolano Fault) Early-Middle Pliocene in age, which bounded the eastern side of the Pliocene Siena Basin, and gave rise to space accommodation for clayey and sandy marine sediments. Hydrothermal circulation (and related travertine deposition) was favoured by the damaging enhancement due to the fault-fault intersection. Tectonic activity has been also documented by deformation recorded by travertines, which suggest a main tectonic event between 64 ± 5 and 40 ± 5 ka. The tectonic activity described for the study area agrees with the Quaternary tectonic evolution documented in the surrounding areas (e.g. Mt. Amiata and Mt. Vulsini), as well as the Tyrrhenian margin of the Central Apennines, indicating that a widespread tectonic activity affected the inner part of the Apennines until the latest Quaternary.

show abstract

Section: Discussionmentioning

confidence: 63%

Studying travertines for neotectonics investigations: Middle–Late Pleistocene syn-tectonic travertine deposition at Serre di Rapolano (Northern Apennines, Italy)

Brogi

Capezzuoli

Aqué

et al. 2009

Int J Earth Sci (Geol Rundsch)

Self Cite

View full text Add to dashboard Cite

show abstract

“…Young (Pliocene to Quaternary) granite plutons have been identified as the primary heat source in the southern Tuscan geothermal areas including Larderello-Travale and Monte Amiata (Brogi 2008b;Frondini et al 2009;Gianelli et al 1997Gianelli et al , 1988. These acidic intrusive bodies belong to the Tuscan Magmatic Province (Innocenti et al 1992) and can be linked to the extensional tectonic setting in the region (Brogi 2008b).…”

Section: Crustal Heat Sourcementioning

confidence: 99%

“…These acidic intrusive bodies belong to the Tuscan Magmatic Province (Innocenti et al 1992) and can be linked to the extensional tectonic setting in the region (Brogi 2008b). They appeared as from the Middle Miocene in Corsica to the Late Pleistocene in the Tuscan region (e.g.…”

Section: Crustal Heat Sourcementioning

confidence: 99%

See 1 more Smart Citation

Influence of depth, temperature, and structure of a crustal heat source on the geothermal reservoirs of Tuscany: numerical modelling and sensitivity study

et al. 2016

View full text Add to dashboard Cite

© 2016, Ebigbo et al.Granitoid intrusions are the primary heat source of many deep geothermal reservoirs in Tuscany. The depth and shape of these plutons, characterised in this study by a prominent seismic reflector (the K horizon), may vary significantly within the spatial scale of interest. In an exploration field, simulations reveal the mechanisms by which such a heat source influences temperature distribution. A simple analysis quantifies the sensitivity of potentially measurable indicators (i.e. vertical temperature profiles and surface heat flow) to variations in depth, temperature, and shape of the heat source within given ranges of uncertainty

show abstract

“…In the Monte Amiata area, the extension produced superimposition of different tectono-stratigraphic units affected by low-angle normal faults with different ages (Calamai et al 1970;Gianelli et al 1988;Brogi 2007).…”

Section: Geological and Geomorphologic Settingmentioning

confidence: 98%

The sagging deep-seated gravitational movements on the eastern side of Mt. Amiata (Tuscany, Italy)

et al. 2011

Self Cite

View full text Add to dashboard Cite

The eastern side of the Mt. Amiata volcano is affected by a series of deepseated gravitational slope deformations (DsGSDs). The San Piero and the Podere Mezzavia DsGSDs affect the lower part of the slope. The main escarpments are located on the outer edges of the lava flows, but the landslides mostly affect the pre-volcanic Ligurian Terrains. A deeper movement, possibly exceeding 100 m in thickness, is evidenced by a long trench at the base of the main escarpment that indicates a sagging type movement. This deeper movement is responsible for the activation of a series of superficial rock and mud flows that show evidence of ongoing activity. The most likely location of the sliding surface is the tectonized contact between the Santa Fiora and Argille a Palombini Fms within the Ligurian units, although the superficial landslides prevent our determining with certainty if a clear-cut sliding surface already developed connecting the upper and the lower parts of the slope. These DsGSDs were activated along the flanks of a larger movement that affects the lava flow units cropping out in the middle slope of the volcano. A long main escarpment, secondary escarpments, trenches and borehole data suggest that the thickness could locally exceed 200 m and generate another sagging type movement. Up-slope and up-movement-facing counterscarps indicate the existence of a listric elongated spoonshaped compound embryonic sliding surface. This sagging, which hosts the towns of Abbadia San Salvatore and Piancastagnaio, appears to be in a quiescent stage, according to preliminary monitoring with a global positioning system (GPS) network. The downcutting of the river network along the softer Pliocene terrains of the Radicofani basin is enhanced by the general uplift of the Apennines and seems to be the major factor in the activation of these DsGSDs.

show abstract

The structure of the Monte Amiata volcano-geothermal area (Northern Apennines, Italy): Neogene-Quaternary compression versus extension

Abstract: The tectonic evolution of the Mt Amiata volcano-geothermal area is under discussion.

Cited by 69 publications

References 75 publications

Studying travertines for neotectonics investigations: Middle–Late Pleistocene syn-tectonic travertine deposition at Serre di Rapolano (Northern Apennines, Italy)

Studying travertines for neotectonics investigations: Middle–Late Pleistocene syn-tectonic travertine deposition at Serre di Rapolano (Northern Apennines, Italy)

Influence of depth, temperature, and structure of a crustal heat source on the geothermal reservoirs of Tuscany: numerical modelling and sensitivity study

The sagging deep-seated gravitational movements on the eastern side of Mt. Amiata (Tuscany, Italy)

Contact Info

Product

Resources

About