Thomas Blaise

ORCID: 0000-0003-1820-8152
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About
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Research Areas
  • Hydrocarbon exploration and reservoir analysis
  • Geological and Geochemical Analysis
  • Geological and Geophysical Studies Worldwide
  • Geological formations and processes
  • earthquake and tectonic studies
  • Paleontology and Stratigraphy of Fossils
  • Geology and Paleoclimatology Research
  • Geochemistry and Geologic Mapping
  • Radioactive element chemistry and processing
  • Geological Modeling and Analysis
  • CO2 Sequestration and Geologic Interactions
  • Methane Hydrates and Related Phenomena
  • Geochemistry and Elemental Analysis
  • Geological Studies and Exploration
  • Enhanced Oil Recovery Techniques
  • Allergic Rhinitis and Sensitization
  • Contact Dermatitis and Allergies
  • Food Allergy and Anaphylaxis Research
  • Hydraulic Fracturing and Reservoir Analysis
  • 3D Surveying and Cultural Heritage
  • Clay minerals and soil interactions
  • Groundwater flow and contamination studies
  • T-cell and Retrovirus Studies
  • Groundwater and Isotope Geochemistry
  • Sports injuries and prevention

Université Paris-Saclay
2020-2025

Geosciences Paris-Saclay
2020-2025

Centre National de la Recherche Scientifique
2011-2025

Clinical Investigation Center Plurithematic Tours
2023

Inserm
2023

Centre Hospitalier Andrée Rosemon
2023

Université de Lorraine
2011-2015

Agence Nationale pour la Gestion des Déchets Radioactifs
2011-2015

Abstract The Mediterranean region provides a natural laboratory for studying complex deformation resulting from body forces and interactions between the convergence of Africa Eurasia plates since Cretaceous. These led to formation mosaic basins orogenic domains, whose intrinsically evolution over time is still subject debate. Investigating timing recorded on both sides an orogen, within intraplate domain, links local‐scale processes regional geodynamic events. This study combines...

10.1029/2024tc008634 article EN cc-by Tectonics 2025-02-01

Significant changes occured in the Mediterranean region from ca. 30-35 Ma, marked by onset African slab retreat beneath several orogenic segments and inception of back-arc extension upper plate. In western Mediterranean, extensional tectonics has been responsible for opening Liguro-Provençal basin rotation Sardinia-Corsica continental block. The northern margin Liguro Provençal thus underwent contractional deformation, followed roll-back related extension. terms this...

10.5194/egusphere-egu25-19349 preprint EN 2025-03-15

We evaluated the application of Fourier transform infrared (FT-IR) microspectroscopy in mid-IR region (1500–550 cm –1 ) reflectance mode as a semi-automated tool to quantify common heavy minerals (HM) found natural sediments and sedimentary rocks. An in-house database IR spectra for main HM was acquired. Then, automated identification using FT-IR spectroscopy tested on synthetic mixtures with known proportions. fractionation during sampling mounting epoxy is by testing several sample...

10.1177/00037028251322197 article EN Applied Spectroscopy 2025-03-17

Although far-field deformation related to the convergence between Eurasian and African plates has long been documented in central western Europe, only few outcrops clearly document corresponding compressive structures. In northern France, Opal coast gives access Upper Jurassic strata of north-eastern border Weald-Boulonnais inverted basin. They are affected by (1) E-W trending normal faults early late phases syn-rift extension, (2) E-W-trending folds associated reverse very similar those...

10.1144/jgs2024-222 article EN Journal of the Geological Society 2025-04-02

Abstract Geothermometers are commonly used to reconstruct the diagenetic and thermal history of rocks. However, characterizing timing, origin, temperature paleofluid flow remains challenging because it must be assessed indirectly through analysis microscopic cements that precipitate fill intergranular spaces during fluid circulation. Here, we measure both clumped isotope (Δ47) in situ U-Pb age individual calcite within a sedimentary section Paris Basin (France), whose has been previously...

10.1130/g47358.1 article EN Geology 2020-05-19

Abstract Hardground discontinuities within carbonate platforms form important stratigraphic surfaces which can be used at basin scale to correlate sequence boundaries. Although these are commonly in strati‐graphy, the timing and duration of hardground lithification crystallization early cements remain unexplored. Here, calcite were dated by U‐Pb geochronology for five Jurassic hardgrounds, interpreted as third‐order boundaries, situated a well‐constrained petrographic, sedimentological...

10.1111/sed.12795 article EN Sedimentology 2020-09-02

Abstract Chlorite minerals, mainly in the form of clay coats, play a critical role determining reservoir quality siliciclastic rocks. They can positively influence by preserving porosity during deep burial, but they also negative reducing permeability through pore filling. The main aim this research is to determine optimal conditions for chlorite growth sedimentary basins. This study investigates Lower Cretaceous turbidite sandstone Agat Formation North Sea. We used source‐to‐sink approach...

10.1111/bre.12867 article EN cc-by Basin Research 2024-05-01

Abstract Absolute dating helps to define the age and duration of orogen building. Here we present new U–Pb ages syn‐faulting calcites collected in northern foreland basin Pyrenees. The studied area underwent deformation during Eocene growth belt. This orogenic is considered have persisted until Late Oligocene, after which post‐orogenic processes prevailed. Microstructural analysis coupled with calcite confirms well‐known NW‐SE N–S main shortening stage Pyrenean (from 48.7 ± 2.2 43.2 5.3 Ma)....

10.1111/ter.12547 article EN Terra Nova 2021-07-07

ABSTRACT Deformation in intraplate domains is usually considered as a consequence of tectonic events at plate boundaries. Nevertheless, the occurrence earthquakes such recent Le Teil event south France along Cévennes Fault System (CFS), on 11 November 2019, Mw = 4.9, questions whether this far-field deformation only occurs during pulses boundaries, or if it corresponds to low-intensity but regional continuous through time. To address question, we have coupled U–Pb geochronology fault-related...

10.1017/s0016756822000152 article EN Geological Magazine 2022-04-11

Abstract Jurassic carbonate strata in the eastern Paris Basin exhibit several generations of faults, tension gashes and stylolites. Although their relative chronology can sometimes be determined according to cross-cutting relationships, duration major deformation phases influence on fluid flow cementation are still uncertain. This contribution aims clarify timing brittle associated calcite cementation. Tension filled by carbonates were sampled outcrops boreholes dated through U–Pb...

10.1017/s0016756822000772 article EN Geological Magazine 2022-10-14

Abstract. The age of ore deposits constitutes a decisive element in understanding their formation. Deciphering precise chronology may be challenge the absence mineral phases that can dated by conventional geochronometers. Fluorite is very common either as major or accessory wide variety ores and provide information regarding origin timing mineralizing fluid flows. In this contribution, we explore U–Pb dating on fluorite crystals from world-class carbonate strata-bound Pierre-Perthuis...

10.5194/gchron-3-199-2021 article EN cc-by Geochronology 2021-04-19
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