Assessing the thermal evolution of sedimentary basins is critical for understanding the origin of natural resources (including ores, geothermal fluids, or hydrocarbons) and for deciphering larger-scale tectonic and geodynamic evolutions. Modern reconstructions of past subsurface temperatures mostly rely on thermochronometers that are not applicable to carbonate rocks [e.g., fission-track and (U-Th)/He analyses]. Here, by coupling carbonate clumped isotope (∆47) thermometry and laser ablation U-Pb geochronology on a complete paragenetic sequence, we demonstrate the applicability of an emerging thermochronometer for carbonate bearing-rocks. Paired ∆47 and U-Pb data were obtained for calcite and dolomite phases precipitated in a Middle Jurassic carbonate hydrocarbon reservoir of the Paris Basin depocenter (France). The absolute thermochronological data allow the precise reconstruction of the thermal history of these rocks: from shallow burial temperatures (∼40 °C), occurring in the Late Jurassic, toward a progressive burial and heating stage (up to 87 °C) during the Cretaceous, followed by a cooling stage (down to 69 °C) during the Tertiary uplift of the basin. The inferred time-temperature path based on Δ47/(U-Pb) data is mostly consistent with the thermal scenario independently deduced from organic maturity indicators from the underlying Lower Jurassic shales. The Δ47/(U-Pb) thermochronological data also highlight a thermal anomaly during Aptian–Albian time that requires revisiting the accepted timing for hydrocarbon migration in the Middle Jurassic reservoir carbonates.

You do not have access to this content, please speak to your institutional administrator if you feel you should have access.