U.S.-Argentina Cooperative Research: Evolution of the Pangean Megamonsoon: Plant Taphonomy in Triassic Sedimentary Rocks of the Ischigualasto Basin

0228426帕里什-琼斯这个美洲奖将支持朱迪思T。亚利桑那大学的帕里什-琼斯和奥斯卡·奥尔科伯博士以及奥尔科伯博士的博士卡丽娜·科隆比女士。阿根廷国立圣胡安大学的埃克塞特教授，以表彰他们对盘古大陆巨型季风演化的研究。盘古大陆巨型季风是一个全球气候系统，其历史与理解气候动力学有关。 盘古大陆的西南部，也就是现在的南美洲，在这个气候系统的文献中，特别是三叠纪的文献中，很少受到关注。 在阿根廷西部（伊瓜拉斯托盆地），一个暴露良好的完整的三叠纪地层序列可以帮助解决我们对盘古纪记录的认识中的差距，也是本项目的重点。 Pis将在Iberggualasto盆地进行植物埋藏学研究。 植物埋藏学是古气候解释的有力手段，但在南美洲尚未得到广泛应用。 结合其他工作者的沉积学研究和阿根廷人进行的脊椎动物埋藏学研究，这项古植被研究将提供世界这一地区三叠纪气候的极好记录。

0228426Parrish-JonesThis Americas award will support collaborative research between Dr. Judith T. Parrish-Jones of the University of Arizona and Dr. Oscar Alcober and Ms. Carina Colombi, Dr. Alcober's Ph.D. advisee, of Universidad Nacional de San Juan in Argentina for their work on the evolution of the Pangean megamonsoon.The Pangean megamonsoon was a global climate system whose history is relevant to understanding climate dynamics. The southwestern portion of Pangea, in what is now South America, has received little attention in the documentation of this climate system, particularly of the Triassic. A well-exposed and complete Triassic stratigraphic sequence in western Argentina (Ischigualasto Basin) can help address the gap in our knowledge of the Pangean record, and is the focus of this project. The Pis will conduct plant taphonomic studies in the Ischigualasto Basin. Plant taphonomy is a powerful method for paleoclimate interpretation and has not been applied widely in South America. Integrated with the sedimentologic studies by other workers and with the vertebrate taphonomy to be carried out by the Argentines, this study of the paleovegetation will provide an excellent record of the Triassic climate in this part of the world.