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Sara Fargues
PhD candidateContact details
- Address
- Maison de la Recherche, Jean Jaurès University 5, Allées A. Machado – 31058 TOULOUSE Cedex 1
- Office
- C232
- sara.fargues@univ-tlse2.fr
Taught academic discipline(s)
TEACHING AT UT2J :
- UE 101 : Contemporary Environmental Issues (Year 1): 24 hours – tutorial instructor
- UE 301 : Physical Environments: Components and Organisation (Year 2): 24 hours – tutorial instructor
Research topics
PhD thesis : Trajectory of a risk‑prone territory: a combined geo‑historical and geo‑archaeological approach to the middle Garonne around Marmande over the last 2,500 years
This thesis aims to reconstruct the trajectory of the middle Garonne around Marmande (Aquitaine, France) over the last 2,500 years using a combined geo‑historical and geo‑archaeological approach. This approximately 50‑km‑long reach begins near Thouars‑sur‑Garonne (upstream from the confluence with the Lot) and ends where tidal influence appears at La Réole. The alluvial plain, sparsely populated and distant from major Garonne urban centres, is frequently affected by high‑intensity floods (2003, 2006, 2009, 2014, 2019, 2021).
The combined geo‑historical and geo‑archaeological approach will highlight spatial variations in fluvial‑dynamics processes at different spatial and temporal scales. Two scales are considered: the entire reach and more detailed windows for the geo‑archaeological component. The objective is to broaden knowledge of the reach over the long term, i.e. over the last 2,500 years.
This microhistorical, geo‑archaeological and hydro‑geomorphological approach will address the history of flood hazards through the reconstruction of hazard evolution in historical times (chronology of floods based on written and sedimentary archives). It will also address the long‑term evolution of exposure and vulnerability using historical and archaeological data. The aim is to examine long‑term risk culture and compare it with the evolution of resources. The history of the river is therefore approached at the scale of local societies.
The palaeoenvironmental approach will clarify long‑term transformations in fluvial dynamics. It will rely on high‑temporal‑resolution hydro‑geomorphological investigations combining:
It aims to reconstruct the hydro‑geomorphological history of the alluvial plain and channels. This reconstruction will identify episodes of hydro‑geomorphological activity responsible for channel shifts, metamorphoses or overbank floods. This research lies at the interface between hazard studies and palaeohydrology.
- Supervisor : Philippe VALETTE (Senior Lecturer with HDR, UT2J – UMR 5602 GEODE)
- Co‑supervisor : Laurent LESPEZ (Professor, UPEC – UMR 8591 Physical Geography Laboratory)
This thesis aims to reconstruct the trajectory of the middle Garonne around Marmande (Aquitaine, France) over the last 2,500 years using a combined geo‑historical and geo‑archaeological approach. This approximately 50‑km‑long reach begins near Thouars‑sur‑Garonne (upstream from the confluence with the Lot) and ends where tidal influence appears at La Réole. The alluvial plain, sparsely populated and distant from major Garonne urban centres, is frequently affected by high‑intensity floods (2003, 2006, 2009, 2014, 2019, 2021).
The long‑term recurrence of this hazard is the starting point of this doctoral research, which seeks to analyse current issues of the Garonne hydrosystem through its geo‑history, using a territorial approach to flooding. The aim is to deepen our understanding of relationships between riverside societies and major rivers at the local scale, by combining an environmental geo‑history of the floodplain with a social history of riparian communities.
The combined geo‑historical and geo‑archaeological approach will highlight spatial variations in fluvial‑dynamics processes at different spatial and temporal scales. Two scales are considered: the entire reach and more detailed windows for the geo‑archaeological component. The objective is to broaden knowledge of the reach over the long term, i.e. over the last 2,500 years.
This microhistorical, geo‑archaeological and hydro‑geomorphological approach will address the history of flood hazards through the reconstruction of hazard evolution in historical times (chronology of floods based on written and sedimentary archives). It will also address the long‑term evolution of exposure and vulnerability using historical and archaeological data. The aim is to examine long‑term risk culture and compare it with the evolution of resources. The history of the river is therefore approached at the scale of local societies.
The palaeoenvironmental approach will clarify long‑term transformations in fluvial dynamics. It will rely on high‑temporal‑resolution hydro‑geomorphological investigations combining:
- spatial approaches (GIS, remote sensing, photo‑interpretation, LIDAR),
- field approaches (ERT geophysics, ground‑penetrating radar, coring, mechanical trenching),
- laboratory analyses of sedimentary archives (sedimentology, XRF geochemistry, XRD mineralogy).
It aims to reconstruct the hydro‑geomorphological history of the alluvial plain and channels. This reconstruction will identify episodes of hydro‑geomorphological activity responsible for channel shifts, metamorphoses or overbank floods. This research lies at the interface between hazard studies and palaeohydrology.
Finally, this study adopts an educational approach to risk through history, with the aim of improving understanding of current river management and the vulnerability of riverside societies.
Activities / Resume
UNIVERSITY EDUCATION :
- 2024 – present : PhD in Geography, Contrat Doctoral Unique – University Toulouse Jean‑Jaurès – UMR 5602 GEODE – Toulouse (31).
- 2021 – 2023 : Master’s degree (Years 1 & 2) in Geography and Environment : “Dynamics of Environments and Risks (DYNARISK)” – Completion of two research dissertations, High Distinction – Université Paris‑Est Créteil (94).
- 2019 – 2021 : Master’s degree (Years 1 & 2) in History: “Contemporary History of International Relations and Foreign Worlds” – North America specialisation – Completion of a research dissertation, Distinction – Université Paris 1 Panthéon‑Sorbonne, Paris (75).
- 2018 – 2019 : Bachelor’s Year 3, Double Major in History and English Language, Literature and Civilisation (LLCER) – Sorbonne Université, Paris (75).
- 2016 – 2018 : Preparatory Classes for the Grandes Écoles (CPGE), Humanities track A/L – History and Geography specialisation – Lycée Camille Jullian, Bordeaux (33).
RESEARCH EXPERIENCE IN GEOGRAPHY :
March – May 2023 : Research internship at the Physical Geography Laboratory, Thiais:- Palaeoenvironmental and geo‑historical study of the Amboile basin: reconstruction of site evolution and land use throughout the Holocene.
- Geomorphological study as part of the archaeological assessment of the ZAC Aurore in Orly, conducted by the Archaeological Service of Val‑de‑Marne.
- Geomorphological, geophysical and geo‑historical study of the Biville–Héauville dune massif (Manche – 50).
Publications extraites de HAL affiliées à Geode : Géographie de l'environnement
Additional information
PUBLICATIONS
ARCHAEOLOGICAL DIAGNOSTIC REPORT :
DAVIDOUX, S. and FARGUES, S., 2023: “Geomorphological report of the Orly diagnostic, ZAC Aurore”, in BALESTRA, F. et al.: Orly, ZAC Aurore – Lopofa Sector, lots 8A, 8B, 8D, 8E. Final diagnostic report, Archaeological Service of Val‑de‑Marne, Villejuif, June 2023, 202 pages.