The late Carboniferous-to-Permian coal-bearing Decize-La Machine Basin, and more specifically the Lucenay-lès-Aix area, located south of the Paris Basin, has been investigated to reassess the palaeoenvironmental evolution and the basin architecture. The detailed sedimentological study has been carried out based on core data and digitised old mining data, i.e., seismic profiles and well-logs. An interpretation of well-logs without core data is proposed, based on a palaeoenvironmental interpretation from cores and their respective well-log data, and three depositional environments have been defined: an alluvial plain, an alluvial-fan, and deltaic and lacustrine environments. Correlations between wells have been performed using markers identified in seismic profiles, paired with sequence stratigraphic interpretations from well-log and core data. An evolution in seven major progradational–retrogradational stratigraphic cycles is proposed based on the evolution of the depositional environment observed at the basin scale, leading to a reconstruction of palaeogeographic maps at the Carboniferous–Permian transition. This new viewpoint shows that through time, the deposits, proximal at the base of the succession with coal preservation, become more lacustrine with the delta prograding into the basin. In consequence, the basin evolution shows a general retrogradational trend with increasing lacustrine deposits at the top of the succession eroded by the Permian–Triassic unconformity. Therefore, the current borders of the basin in the Lucenay-lès-Aix area are not representative of those at the time of the sedimentary filling, and thus, this area could be part of a larger one, perhaps encompassing all north-eastern French Massif Central late Carboniferous-to-Permian basins.

已对位于巴黎盆地南部的石炭纪至二叠纪晚期含煤的Decize-La机械盆地，特别是Lucenay-lès-Aix地区进行了研究，以重新评估古环境演化和盆地构造。基于核心数据和数字化的旧采矿数据（即地震剖面和测井）进行了详细的沉积学研究。基于岩心及其各自的测井资料的古环境解释，提出了一种不含核心数据的测井解释方法，并定义了三种沉积环境：冲积平原，冲积扇，三角洲和湖相环境。井间的相关性已经通过在地震剖面中识别出的标记以及来自测井和核心数据的层序地层解释来完成。根据在盆地尺度上观察到的沉积环境的演化，提出了七个主要的渐进-渐回地层循环演化，从而导致了石炭纪-二叠纪过渡时期的古地理图的重建。这种新的观点表明，随着时间的推移，随着三角洲向盆地的扩展，在保留煤层序的基层附近的沉积物变得越来越湖相。结果，盆地演化显示出总体逆行趋势，在二叠纪-三叠纪不整合面侵蚀的演替顶部，湖相沉积增加。因此，Lucenay-lès-Aix地区流域的当前边界不能代表沉积物充填时的边界，因此，该区域可能是较大区域的一部分，