COLLABORATIVE RESEARCH: An Integrated Study of Late Proterozoic (1.2-0.7 Ga) Extensional Tectonism, Basin Evolution, and Biological Evolution in the Grand Canyon...

9706412晚元古代罗迪尼亚超大陆的拼合和解体是晚前寒武纪构造的一个基本问题。由于这段时间的岩石记录非常有限，对确实存在的暴露良好的岩石的研究变得更加令人信服。在对这一问题的广泛攻击中，新墨西哥大学、哈佛大学和麻省理工学院将合作研究北美西南边缘的晚元古代岩石。这些研究人员将研究美国西南部晚元古代沉积和火山岩序列的地质、古生物和构造演化。将收集的构造、沉积学、地质年代学、古生物和古地磁数据将直接影响这些岩石的沉积时代和沉积和构造环境，同时研究寒武纪动物多样性之前的晚元古代生命演化。

9706412 Bowring The assembly and breakup of the Late Proterozoic super continent of Rodinia is a fundamental question of late Precambrian tectonics. Because the rock record of this time interval is so limited, studies of the well exposed rocks that do exist become all the more compelling. In a broad attack of this problem, the University of New Mexico, Harvard, and MIT will work collaboratively on late Proterozoic rocks of the southwestern edge of North America. These investigators will study the geological, paleontological, and tectonic evolution of a sequence of sedimentary and volcanic rocks of Late Proterozoic age in the southwestern US. The structural, sedimentological, geochronological, paleontological, and paleomagnetic data to be collected will bear directly on the ages and sedimentary and tectonic environments of deposition of these rocks, and at the same time examine the Late Proterozoic evolution of life prior to the Cambrian diversification of animal life.