Paleomagnetism and Geochronology of Precambrian Rocks, Tanzanian Craton, East Africa

前寒武纪陆块和超大陆的重建 它们的解体依赖于严格约束的古地磁数据。 非洲有一个广泛而复杂的前寒武纪地盾， 存在大量数据。 该项目将获得多项关键 东非坦桑尼亚半岛的古磁极， 将允许测试几个相互矛盾的假设， 元古代的构造过程，包括 元古代超大陆的形成时间以及 围绕着由硅铝石或 敏感的来源。 结果应提供有用的比较数据 在其他前寒武纪地盾中。

The reconstruction of Precambrian cratons and supercontinents and their breakup relies on well-constrained paleomagnetic data. Africa has an extensive and complex Precambrian shield, and considerable data exists. This project will obtain a number of key paleomagnetic poles from the Tanzanian Craton of east Africa that will allow testing of several conflicting hypotheses regarding tectonic processes during the Proterozoic, including the make up and timing of assembly of a Proterozoic supercontinent and whether the mobile belts surrounding cratons originated by ensialic or ensimatic sources. Results should provide comparative data useful in other Precambrian shields.