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Palaeoecology, ichno- and micropalaeontology, and facies architectures of the Cambrian succession in the southern Wadi Araba (Jordan Rift Valley): marginal-marine biotops and palaeogeographic reconstructions along the early Palaeozoic margin of W-Gondwana

阿拉巴干河（约旦大裂谷）南部寒武纪序列的古生态学、古生物学和微型古生物学以及相结构：沿西冈瓦纳古生代边缘的边缘海洋生物生境和古地理重建

基本信息

批准号：
141128871
负责人：
Professor Dr. Olaf Elicki
金额：
--
依托单位：
Lehrstuhl für Paläontologie / Stratigraphie
依托单位国家：
德国
项目类别：
Research Grants
财政年份：
2009
资助国家：
德国
起止时间：
2008-12-31 至 2012-12-31
项目状态：
已结题

来源：
https://gepris.dfg.de/gepris/projekt/141128871?language=en
关键词：
Palaeoecology ichno micropalaeontology facies architectures

项目摘要

The extraordinary successful first phase of the project has provided numerous very important (key-) results which extended significantly our knowledge on the Cambrian at the northern Arabo–Nubian Shield, and which moved the working areas into the international interest as a palaeogeographic key region. During the first phase of the project numerous new sedimentary sections and fossil localities have been provided from Egypt (Eastern Desert and Sinai Peninsula) and from Jordan (Dead Sea area) yielding a spectacular macro-, ichno-, and (for the first time) micro-fauna, leading to a biostratigraphic narrowing, to taxonomic and stratigraphic revisions, and to preliminary palaeogeographic results. Based on this success, the here suggested project renewal will be focused on the investigation of hitherto not or only scarcely investigated palaeoecologic, palaeontologic (mainly trace fossils and micro-fauna) as well as sediment- and biofacies aspects of successions of the southern Wadi Araba (southern Jordan Rift Valley). This will close the still existing, distinct stratigraphic-palaeogeographic gaps to the NE-African (Eastern Desert and Sinai Peninsula), to the S- to Mid-European (Spain, France, Italy, Germany), and to the Asia Minor regions (Turkey). Complemental to the first phase of the project, special focus will be put on the progression of the marine regression (as a transregional correlation level) as well as on the maximum stage of the transgression (maximum number on facies belts) between the Sinai Peninsula and the Dead Sea region, what means the southern Wadi Araba, which represents an important connecting region between the Cambrian depo-centres in NE-Africa and the Middle East. Furthermore, the consequences of and the response to earliest Palaeozoic Sea-level fluctuations by the internal structure of sedimentary and ecological systems as well as in the specificity and the changes of the interactions between biota and environment, especially in the direct marine-to-continental transitional areas, will be investigated. The expected results will enable the adjustment of the Cambrian of the working area (of both the first and the renewal phases of the project) into the whole NE-African and Middle East region, as well as its integration in modern global schemes by the reconstruction of consistent depositional and biofacies models and stratigraphic frames. The expected data will significantly contribute to our understanding of the very special sedimentary and biotic systems and processes of the Cambrian, which – regarding biosphere and exogenetic dynamics – represents one of the most exciting and unique stratigraphic phases in Earth’s evolution.

该项目第一阶段的非凡成功提供了许多非常重要的（关键）成果，大大扩展了我们对北方阿拉伯-努比亚地盾寒武纪的了解，并使工作区成为国际关注的古地理关键区。在该项目的第一阶段，提供了来自埃及（东部沙漠和西奈半岛）和约旦（死海地区）的大量新的沉积剖面和化石地点，产生了壮观的宏观、遗迹和（首次）微型动物群，导致生物地层缩小，分类和地层修订，以及初步的古地理结果。基于这一成功，这里建议的项目更新将侧重于调查迄今为止尚未调查或几乎很少调查的古生态学、古生物学（主要是遗迹化石和微型动物群）以及南部Wadi Araba（约旦裂谷南部）继承的沉积物和生物相方面。这将填补东北非洲（东部沙漠和西奈半岛）、南欧至中欧（西班牙、法国、意大利、德国）和小亚细亚地区（土耳其）之间仍然存在的、明显的地层-古地理空白。作为项目第一阶段的补充，将特别关注海洋退化的进展情况（作为跨区域对比水平）以及海侵的最大阶段（相带数量最多）西奈半岛和死海地区之间，这意味着南部的Wadi Araba，它代表了东北非洲寒武系沉积中心与中东寒武系沉积中心之间的重要连接区。此外，还将研究沉积和生态系统的内部结构对最早古生代海平面波动的影响和反应，以及生物群与环境之间相互作用的特殊性和变化，特别是在海洋与大陆的直接过渡区。预期结果将使工作区寒武系（项目的第一阶段和更新阶段）调整为整个东北非洲和中东地区，并通过重建一致的沉积和生物相模型和地层框架将其纳入现代全球方案。预期的数据将大大有助于我们了解寒武纪非常特殊的沉积和生物系统和过程，这-关于生物圈和外生动力学-代表了地球演化中最令人兴奋和独特的地层阶段之一。