Collaborative Research: Co-operative Program: The Origin and Evolution of the Karoo Basalt Group, Southern Africa

这个项目是为了确定时间，起源，和演变， 南部非洲卡鲁大陆玄武岩区。 重点将放在逐流地层学上 用野外测绘和化学技术研究玄武岩流， 以及它们的相对年龄和绝对年龄。 这些数据将用于 限制了这一过程的物理性质和持续时间， 异常巨大的火山事件， 卡鲁玄武岩的侵蚀遗迹现在散布在大面积的 纳米比亚南部、博茨瓦纳、莱索托和南非，以及 将水流与众多的卡鲁堤坝联系起来 南部非洲. 对物理进化的了解 然后，将省的使用与 成分数据来模拟地幔熔融、分馏和 玄武岩浆产生过程中的地壳同化作用， 来限制其来源的构成。

This project is to determine the timing, genesis, and evolution of the Karoo continental flood basalt province in Southern Africa. Particular emphasis will be placed on the flow-by-flow stratigraphy of the basalt flows using field mapping and chemical techniques, and their relative and absolute ages. These data will be used to constrain both the physical nature and the duration of this exceptionally large volcanic event, to correlate the numerous eroded remnants of Karoo basalt now scattered over large areas of southern Namibia, Botswana, Lesotho, and South Africa, and to correlate the flows with the numerous Karoo dikes found across southern Africa. The increased knowledge of the physical evolution of the province will then be used in conjunction with the compositional data to model mantle melting, fractionation and crustal assimilation in the production of the basaltic magmas and to constrain the composition of their source.