2017
DOI: 10.1051/bsgf/2017197
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Sedimentary characterization of the carbonate source rock of Upper Kimmeridgian Parnac Formation of the Aquitaine Basin (Quercy area)

Abstract: -The main source rock (SR) of the Aquitaine Basin, the most important oil province in France, corresponds to organic-rich marine limestones of Upper Kimmeridgian age (Lons Formation in the Béarn area and Parnac Formation in the Quercy area). In order to better characterize their depositional environment, in particular the conditions of accumulation and preservation of organic-matter, a sedimentological, micropaleontological and geochemical study of the Crayssac section (Quercy) has been performed. Organic-rich… Show more

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Cited by 6 publications
(2 citation statements)
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“…In Quercy (6, Figure 1) organic rich intervals are recognized only in the upper part of the Eudoxus zone and the basal part of the Autissiodorensis zone, TOC values reaching up to 15 wt% and IH values up to 700 mgHC/gTOC, and palynofacies are dominated by AOM within these levels, indicating a dominant marine organic source with enhanced palaeoproductivity and/or dysoxia/anoxia [Figure 6, Baudin, 1998, Bastianini et al, 2017this work].…”
Section: Comparison With Normandy Charentes and Quercy (France)mentioning
confidence: 99%
“…In Quercy (6, Figure 1) organic rich intervals are recognized only in the upper part of the Eudoxus zone and the basal part of the Autissiodorensis zone, TOC values reaching up to 15 wt% and IH values up to 700 mgHC/gTOC, and palynofacies are dominated by AOM within these levels, indicating a dominant marine organic source with enhanced palaeoproductivity and/or dysoxia/anoxia [Figure 6, Baudin, 1998, Bastianini et al, 2017this work].…”
Section: Comparison With Normandy Charentes and Quercy (France)mentioning
confidence: 99%
“…Bastianini et al (2017) studied the sedimentology, micropaleontology and geochemistry of this source rock in order to determine its depositional environment and in particular the conditions for accumulation and preservation of the marine organic matter which has a TOC as high as 15%. This source rock was deposited in an open marine ramp environment, shown by its microfauna, by indications of wave action and the absence of any barrier.…”
Section: Editorialmentioning
confidence: 99%