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Lorenzo Gemignani

Ricercatore a tempo determinato tipo a) (junior)

Dipartimento di Scienze Biologiche, Geologiche e Ambientali

Settore scientifico disciplinare: GEO/02 GEOLOGIA STRATIGRAFICA E SEDIMENTOLOGICA

Temi di ricerca

Parole chiave: Sistemi sedimentari termocronologia in situ e detritica Interazione tra tettonica, erosione e clima

My research interests center on investigating the factors influencing topography and erosion rates in mountainous regions, with a particular emphasis on the interplay between tectonic and climatic forces. I am particularly intrigued by how these processes shape the development of mountain ranges and the surrounding sedimentary environments. I also employ numerical modeling to better understand erosional processes, study the long-term evolution of landscapes, and apply radio-isotopic dating techniques such low-temperature thermochronology and cosmogenic nuclides to quantify the histories of exhumation and erosion. Additionally, I am interested in comprehending source-to-sink processes and their impact on the record of erosion in provenance studies.

My research has spanned various mountain ranges, including the Himalaya, European Alps, Dinarides and Hellenides, and southeastern Tibet. The objective of my research is to quantify the feedback relationship between the elevation and exhumation of mountain ranges and the regional climate. Conversely, I investigate how climate, especially its erosional effects (sediments), influences the tectonic evolution of active orogens.

To tackle these challenges, I employ a diverse set of tools that integrate the following techniques

  • Field Observations and Geology:
    Analyzing geological structures, stratigraphy, and landforms in the field.
  • Low-Temperature Thermochronology:
    Noble Gas40Ar/39Ar dating, (U-Th)/He and fission track analysis.
  • Digital Elevation Model (DEM) Analysis and Modeling:
    Playing with digital elevation models to gain insights into landscape evolution.
    Integrating GIS with Python to perform spatial analysis for a comprehensive understanding of the terrain.
  • Cosmogenic Isotopes (i.e., 36Cl) in Fluvial Terraces:
    I use cosmogenic isotopes to study the history of fluvial terraces and the evolution of fluvial basins through time.

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