Assembly and Ancestry of Gondwana: Tectonic History of the Borborema Province, Northeast Brazil

冈瓦纳形成于前寒武纪晚期至古生代早期，是地质历史上一个大型大陆的主要组合之一。这一事件融合了600万年泛非-巴西利亚造山运动期间非洲和南美洲的几个太古宙至早元古代的克拉通地块、大陆碎片和边缘造山带。该项目继续努力定义巴西东北部的Borborema省在Gondwana形成之前的地壳历史，通过开发各种岩石圈元素组合的精确年表。获得的数据，以及巴西和非洲其他研究小组正在进行的研究，将更好地了解西部冈瓦纳人的祖先和聚集。＊＊＊

9316047 Van Schmus The formation of Gondwana during late Precambrian to Early Paleozoic times represents one of the major assemblies of a large continent in geologic history. This event fused several Archean to Early Proterozoic cratonic masses, continental fragments and marginal orogenic belts of Africa and South America during the 600 My Pan African-Brasiliano orogeny. This project continues efforts to define the crustal history of the Borborema Province in the northeastern Brazilian shield prior to the formation of Gondwana by developing a precise chronology for assembly of the diverse lithospheric elements. The data obtained, along with studies underway by other groups in Brazil and Africa will provide better understanding of the ancestry and assembly of western Gondwana. ***