Valerio Olivetti

Valerio Olivetti
University of Padova | UNIPD · Department of Geosciences

PhD

About

40
Publications
8,164
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769
Citations
Citations since 2016
17 Research Items
553 Citations
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
2016201720182019202020212022020406080100
Introduction
I am interested on landscape evolution, quantitative approach to erosion process, plateau formation and coupling between surface and tectonic processes. I use apatite fission track, (U-Th)/He thermochronometry and cosmogenic nucleides. I am presently working on the evolution of the Transantarctic Mountain in Antarctica.
Additional affiliations
May 2014 - January 2016
January 2006 - April 2014
Università Degli Studi Roma Tre
Position
  • PostDoc Position

Publications

Publications (40)
Article
Full-text available
Mountain regions at high altitudes show deeply incised glacial valleys that coexist with a high-standing low-relief landscape, whose origin is largely debated. Whether the plateaus contributed to sediment production during the late Cenozoic is a currently debated issue in glacial geomorphology and paleoclimatology. In this study, we used detrital a...
Article
The catchment for the Ross Sea ice includes both the East and the West Antarctic ice sheets, but the mass balance is a direct response to climate change. Our work is aimed to reconstruct the ice flows after the Last Glacial Maximum and is based on apatite fission track data from samples collected from 18 piston cores across the Ross Sea embayment....
Article
Full-text available
The Admiralty Mountains region forms the northern termination of the northern Victoria Land, Antarctica. Few quantitative data are available to reconstruct the Cenozoic morpho-tectonic evolution of this sector of the Antarctic plate, where the Admiralty Mountains region forms the northern termination of the western shoulder of the Mesozoic-Cenozoic...
Article
Located in the foreland domain of the Alpine and Pyrenean mountain belts, the French Massif Central presents enigmatic topographic features—reaching elevations of ∼1700 m above sea level and ∼1000 m of relief—that did not originate from Alpine compressional nor from extensional tectonics. Similar to other Variscan domains in Europe, such as the Boh...
Article
Apatite fission-track and (U-Th)/He thermochronometry have been applied to investigate the long-term topographic evolution of the French Massif Central. Located in the foreland domain of the Alpine and Pyrenean mountain belts, the French Massif Central presents enigmatic topographic features, reaching ~1700 m a.s.l. and ~1000 m of relief, that did...
Article
The Ross Sea is a crucial area to investigate pathways of ice during the Cenozoic as it records the evolution of both the East and West Antarctic Ice Sheets. This work is based on detrital apatite fission track (AFT) data extracted from the sedimentary record of well CIROS‐2, which spans the last 5 million years. The AFT data show a large range of...
Article
The Transantarctic Mountains (TAM) are an imposing topographic feature, forming the western shoulder of the Meso-Cenozoic West Antarctic Rift System. Although the TAM topography is similar to other continental rifts, some aspects such as the high topography and the transition in the mode of crustal extension from orthogonal to oblique rifting durin...
Article
Full-text available
The deformation processes at work across the eastern margin of the Tibetan Plateau remain controversial. The interpretation of its tectonic history is often polarized between two deformation models: ductile flow in the lower crust and shortening and crustal thickening accommodated by brittle structures in the upper crust. Many geological investigat...
Article
The Kuh-e-Faghan strike-slip fault system (KFF), located to the northern edge of the Lut Block in central Iran, developed through a Neogene-Quaternary pulsed history of eastward fault propagation and fault-related exhumation. This system is a consequence of the residual stresses transmitted from the Arabia-Eurasia convergent plate boundary. Here we...
Article
Late Paleozoic glacial deposits are widespread in Gondwana. In Antarctica the best outcrops occur in the Central Transantarctic Mountains, Ellsworth Mountains, Pensacola Mountains, and in Southern Victoria Land, whereas they are rare and very scattered in Northern Victoria Land, which represents a linkage sector with Tasmania and eastern Australia....
Article
Full-text available
The Sila Massif is a small part of an orogenic wedge that sits on top of the narrow and active Calabrian subduction zone. The topography of the Sila Massif is characterized by a plateau region whose age and origin has been long-time debated. Here we integrate new apatite (U-Th)/He data from the eastern flank of the massif with existing apatite fiss...
Conference Paper
Full-text available
The Transantarctic Mountains (TAM) are one of the most enigmatic topographic feature around the world growth in response to the extensional tectonics only. The TAM mark the boundary between the East Antarctic craton and the thinned crust of the West Antarctic Rift System one of the largest continental rift domain on Earth, started in the Mesozoic,...
Article
The French Massif Central is a part of the Hercynian orogenic belt that currently exhibits anomalously high topography. The Alpine orogenesis, which deeply marked Western European topography, involved only marginally the Massif Central, where Cenozoic faulting and short-wavelength crustal deformation is limited to the Oligocene rifting. For this re...
Article
Full-text available
Central Iran provides an ideal region in which to study the long-term morphotectonic response to the nucleation and propagation of intraplate faulting. In this study, a multidisciplinary approach that integrates structural and stratigraphic field investigations with apatite (U + Th)/He (AHe) thermochronometry is used to reconstruct the spatio-tempo...
Article
The West Antarctic Ice Sheet is the most unstable component of the Antarctic cryosphere. Its fluctuations are well documented since the Pliocene, but its behavior over the last 35 m.y. is more controversial, particularly during periods of past high global pCO2 values similar to those predicted in future global climate scenarios. Here we present new...
Conference Paper
The geodynamic evolution of the southern France region during the last 15 Ma results from an interaction of deep and surface processes which left a diagnostic signal on the landscape/topography evolution. In this context the Massif Central is a key area to study the short- and long- term topographic response to a tectonic and climatic forcing. The...
Article
An extensive dataset of vitrinite reflectance, FTIR parameters on organic matter, illite content in mixed layers illite-smectite, apatite fission tracks and U-Th/He dating has been used to reconstruct the stepwise propagation of the Eastern Sicily fold-and-thrust belt during Late Paleogene and Neogene times. The results indicate that the fold-and-t...
Conference Paper
Full-text available
The Gondwana successions in Antarctica unconformably overlain the Ross Orogen terranes and are widespread throughout the whole Transantarctic Mountains. They are mainly represented by the siliciclastic Devonian-Jurassic Beacon Supergroup and the Jurassic Ferrar Dolerite-Kirkpatrick Basalt. In Northern Victoria Land (NVL), they occur with variable a...
Article
The Cenozoic tectonic reorganization of the West Antarctic Rift System in the Ross Sea region occurred concurrently with a major change in the global climate system and a global reorganization of plate motions. This region thus provides the opportunity to study in detail a range of geological issues dealing with tectonic and climate feedbacks durin...
Article
Full-text available
1] The Sila Massif in the Calabrian Arc (southern Italy) is a key site to study the response of a landscape to rock uplift. Here an uplift rate of $1 mm/yr has imparted a deep imprint on the Sila landscape recorded by a high-standing low-relief surface on top of the massif, deeply incised fluvial valleys along its flanks, and flights of marine terr...
Article
The Mesozoic-Cenozoic West Antarctic Rift System (WARS) is one of the largest intracontinental rift on Earth. The Transantarctic Mountains (TAM) form its western shoulder, marking the boundary between the East and West Antarctica. The rifting evolution is commonly considered polyphase and involves an Early Cretaceous phase linked to the Gondwana br...
Article
An extensive dataset of vitrinite reflectance, FTIR parameters on organic matter, illite content in mixed layers illite-smec-tite, apatite fission tracks and U-Th/He dating has been used to reconstruct the stepwise propagation of the Eastern Sicily fold-and-thrust belt during Late Palaeogene and Neogene times. The results indicate that the fold-and...
Conference Paper
Full-text available
Monti Lepini are a limestone massif shaped by surface and underground carsick processes; it has been studied for more than 50 years. The latest discoveries performed at the depth of 700 meters leaded the explorers to believe that some of the caves located in this area constitutes a more complex hydro-geologic system. In order to verify the mentione...
Article
Full-text available
Calabria represents an ideal site to analyze the topography of a subduction zone as it is located on top of a narrow active Wadati-Benioff zone and shows evidence of rapid uplift. We analyzed a pattern of surface deformation using elevation data with different filters and showed the existence of a long wavelength (>100 km) relatively positive topog...
Article
Apatite fission track (AFT) and (U‐Th)/He (AHe) thermochronometry are applied to constraint the thermal history of the basement rock forming the Peloritani Mountains in northeast Sicily, Italy. AFT ages range between 29.0 ± 5.5 Ma and 5.5 ± 0.9 Ma while AHe ages vary from 19.4 Ma to 3.3 Ma. Most AFT ages are younger than the overlying terrigenous s...
Article
The opening of the Tyrrhenian Sea has been punctuated by short-lived episodes of oceanic accretion on separate small backarc basins during early Pliocene (Vavilov basin) and early Pleistocene (Marsili basin) time. These spreading pulses are related to slab rollback and are synchronous with the reduction of the subduction zone width during the forma...
Article
Full-text available
Rock uplift rates can be difficult to measure over 10(3)-10(5) yr time scales. If, however, a landscape approaches steady state, where hillslope erosion and rock uplift rates are steady and locally similar, then it should be possible to quantify rock uplift rates from hillslope erosion rates. Here, we test this prediction by comparing channel steep...
Conference Paper
Full-text available
In questo articolo si riporta una anali-si geomorfologica e geologico-strutturale dell'Inghiottitoio di Pian dell'Erdigheta (La 483). Riguarda quindi ciò che spesso facciamo in grotta: osservare le forme della natura, prendendo in più qualche misura. Non è rivolto pertanto esclusivamente a geologi o affini, ma a tutti gli speleologi che vanno in gr...
Article
The Calabrian-Peloritani arc represents key site to unravel evolution of surface processes on top of subducting lithosphere. During the Pleistocene, in fact the arc uplifted at rate of the order of about 1mm/yr, forming high-standing low-relief upland (figure 2). Our study is focused on the relationship between tectonic and land evolution in the Si...

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Projects

Projects (2)
Project
In this project we propose a multidisciplinary study focused on dating of the fault movements to provide a temporal evolution of the Cenozoic brittle deformation long the TAM front. This approach is based on field studies combined with absolute dating of mineral slickensides on polished fault surfaces, faulted rocks and deformed surface.