Ordovician-Devonian mud rocks from the Rhenohercynian (Mayener Slate, Germany) and the Truchas Basin (Spain) - Deposition and provenance

在沉积序列中，泥岩包含了大量的地层历史。详细分析这种继承使我们更好地了解负责其形成的沉积过程。然而，尽管它们的重要性，它们通常不被纳入流域规模的模型，因为它们被认为包含很少的诊断信息。然而，近年来开展了大量工作，这与它们作为非常规油气藏的重要性日益增加相一致，从而认识到它们的价值。对细粒沉积物进行沉积学调查存在问题，主要是因为缺乏明显的沉积结构，因此将采用多学科方法，包括沉积技术和地球化学分析。本研究的重点是Truchas盆地（西班牙）和马延（德国）的Hunsrück板岩中富含泥岩的层序。该系列沉积在远陆架（或可能更深）环境中，该项目的主要目的是详细检查沉积环境以及沉积物来源。 前者将涉及对沉积物进行高分辨率检查，以确定沉积环境中所涉及的过程，并重建两个地点的古地理。后一个目标将使用一系列地球化学和同位素标记来评估源区，并使用代用指标来确定其他环境因素（如氧含量）。

Mudrocks contain much of the stratigraphic history within sedimentary successions. Detailed analysis of such successions provides us with a better understanding of the depositional processes responsible for their formation. However, despite their importance, they are generally not incorporated into basin-scale models since they are assumed to contain little diagnostic information. Much work, however, has been carried out in recent years, coincident with their increasing importance as unconventional hydrocarbon reservoirs - leading to a recognition of their value. Sedimentological investigations of fine-grained sediments are problematic, mainly due to the lack of obvious sedimentary structures, and thus a multidisciplinary approach will be used, involving both sedimentary techniques as well as geochemical analysis. The mudstone-rich successions within the Truchas Basin (Spain) and the Hunsrück Slate of Mayen (Germany) are the focus of this study. The successions were deposited in distal shelf (or possibly deeper) settings and the main aim of the project is to examine in detail the depositional environments as well as the sediment provenance. The former will involve high-resolution examination of the sediments in order to determine the processes involved within the depositional setting as well as reconstructing the palaeogeography of both locations. The latter aim will use a range of geochemical and isotopic markers to evaluate the source area as well as using proxies to determine other environmental factors (e.g oxygen content).