Margins, slopes, and toe-of-slopes represent regions of sediment transfer and bypass from shallow-water settings to the basin. They are zones of sediment flux triggered by different types of physical process including sediment-gravity flows, storm-driven currents, unidirectional currents, and oscillatory flows. As a consequence, they are zones where sediment can be remobilized and strongly reworked from inner environments to offshore settings and deposited as a mixture of autochthonous/allochthonous sediments. In the Monte La Serra and Monte Torretta (Central Apennines) lower-to-upper Eocene reworked sedimentary succession, two main facies associations are differentiated on textural characteristics and tested for robustness by hierarchical cluster analysis: a grain-supported (packstone-to-grainstone) facies FA1 and a mud-supported (mudstone-to-wackestone) facies FA2. The outcrops allow investigation of the transition zone between the margin of the Latium–Abruzzi platform and the adjoining basin and especially the identification of the carbonate factories that supplied the sediment to the slope zone of the Latium–Abruzzi platform. During the Paleogene, this platform was a shaved isolated platform under the action of waves, with sediment deposition during the transgressive and highstand phases of sea level, and erosion of this material during a subsequent lowstand phase. During these phases, storm-driven currents acted on the carbonate platform, remobilizing, resuspending, and reworking sediments. The remobilized material was transferred from the inner platform on to the slope, generating a mixture of detrital shallow- and deep-water biotic assemblages and depositing autochthonous/allochthonous units mainly constituted by alveolinids, large rotaliids, hooked gypsinids, nummulitids, and orthophragmines (discocyclinids and orbitoclypeids) assemblages. This mixture of shallow- and deep-water biotic assemblages demonstrates that a systematic study of the provenance of carbonate-producing biota, even if they are not preserved in their original context, can be useful in palaeoenvironmental reconstruction of the original carbonate factory system.

中文翻译：

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是异地的还是本土的？Latium-Abruzzi 碳酸盐台地晚古新世-晚始新世斜坡沉积序列（意大利中亚平宁山脉）

边缘、斜坡和坡脚代表沉积物从浅水环境转移到盆地的区域。它们是由不同类型的物理过程触发的沉积物通量区，包括沉积物重力流、风暴驱动流、单向流和振荡流。因此，它们是沉积物可以从内部环境重新迁移到近海环境并作为本土/外来沉积物的混合物沉积的区域。在 Monte La Serra 和 Monte Torretta（中央亚平宁山脉）从下到上始新世重新加工的沉积序列中，两个主要的相组合在构造特征上有所区别，并通过层次聚类分析测试了稳健性：颗粒支撑（泥岩到颗粒岩）相 FA1 和泥支撑（泥岩到泥岩）相 FA2。露头允许调查 Latium-Abruzzi 台地边缘和相邻盆地之间的过渡带，特别是识别向 Latium-Abruzzi 台地斜坡带提供沉积物的碳酸盐工厂。在古近纪期间，该平台是一个在波浪作用下的剃光孤立平台，在海平面的海进和高位阶段沉积物沉积，并在随后的低位阶段对该物质进行侵蚀。在这些阶段，风暴驱动的洋流作用于碳酸盐平台，使沉积物重新流动、重新悬浮和重新加工。再动员的材料从内部平台转移到斜坡上，产生碎屑浅水和深水生物组合的混合物，并沉积主要由肺泡类、大型轮状类、钩状 gypsinids、nummulitids 和 orthophragmines (discocyclinids 和orbitoclypeids) 组合构成的本土/外来单位。这种浅水和深水生物组合的混合表明，对产碳酸盐生物群的来源进行系统研究，即使它们没有保存在原始环境中，也可用于原始碳酸盐工厂系统的古环境重建。