Westernmost Tethyan/proto-Atlantic neritic archives of Early Aptian environmental change

在这里，我提出了一个项目，重点是下阿普第亚epeiric-nearitic继承墨西哥中部（古墨西哥湾）。这项研究的动机是在浅海碳酸盐研究的重大最新进展，特别关注下阿普第浅滩水系统的响应OAE 1a相关的全球扰动。然而，以往的研究系统地偏向于欧洲特提斯和有限数量的论文，专注于原始北大西洋的东缘。这些区域限制代表了浅海OAE 1a研究的一个重大障碍。据作者所知，最近，在墨西哥中部的下阿普第亚单位，覆盖OE 1a时间间隔的系统评估是缺乏的。这一知识差距很大，因为墨西哥古湾在大西洋和太平洋之间具有高度的战略地位。在这里，建议最初的重点是在墨西哥中部的阿普第安圣胡安拉亚，但扩大这项工作的阿普第安单位在北方墨西哥（Cupido Fm）是一个认真考虑的选择。此外，根据所获得的结果，将研究窗口扩展到例如，必须讨论Albian单位。这个项目在很大程度上取决于G教授。巴雷拉（墨西哥国立自治大学，墨西哥城），墨西哥白垩纪古生态学专家。通过结合详细的野外地质，国家的最先进的化学地层学和古生物学以及古生态学，在一个强大的大陆，混合碳酸盐-碎屑岩序列的早期阿普第全球变化的深入评估的目的。如果成功的话，这项工作将大大改善我们对新世界板块的陆面-浅海OAE 1a研究的看法，并为其他地方的类似项目提供模板。

Here I propose a project with focus on the Lower Aptian epeiric-neritic successions of Central Mexico (Palaeo-Gulf of Mexico). This research is motivated by significant recent advances in neritic carbonate research with specific focus on the response of Lower Aptian shoalwater systems to OAE1a-related global perturbations. Previous studies, however, are systematically biased towards the European Tethys and a limited number of papers with focus on the eastern margin of the proto-North Atlantic. These regional limitations represent a significant obstacle in neritic OAE1a research. To the knowledge of the author, a recent, systematic assessment of the Lower Aptian units in Central Mexico that cover the OAE1a time interval is lacking. This knowledge gap is significant as the Palaeo-Gulf of Mexico holds a highly strategic position between the Atlantic and the Pacific domain. Here, it is suggested that the initial focus is on the Aptian San Juan Raya in Central Mexico but expanding this work to Aptian units in northern Mexico (Cupido Fm) is a seriously considered option. Moreover, depending on the results obtained, the expansion of the study window into e.g., Albian units must be discussed. The project is heavily depending on Prof. G. Barrera (UNAM, Mexico City), an expert on the palaeo-ecology of the Cretaceous of Mexico. By combining detailed field geology, state-of-the-art chemostratigraphy and palaeontology as well as palaeo-ecology, an in-depth assessment of Early Aptian global change in a strongly continental, mixed carbonate-clastic succession is aimed at. If successful, this work will significantly improve our view of epeiric-neritic OAE1a research in New World sections and act as template for similar projects elsewhere.