Upper Crustal Extension in the Turkana Rift: 3-D Geometry and Kinematics of Small-Magnitude Extension in East Africa

东非裂谷系是地球在大陆地壳中的主要活动伸展环境之一。裂谷湖中的地震剖面显示出一致的半断陷断陷盆地风格，以主要的边界断裂为边界，由调节带连接。然而，裂谷构造的断层几何学和运动学还没有得到严格的测试，这是因为普遍存在较差的暴露和薄弱的年龄控制。该项目将利用东非裂谷系统东部分支图尔卡纳湖周围地区暴露良好的断层和剪切带，以评估现有的裂谷引起的地壳上部应变模型。这些研究和其他研究将综合起来，以形成裂谷发展的统一图景。

The East Africa Rift system is one of the earth's major active extensional environments in continental crust. Seismic profiling in the rift lakes has demonstrated a consistent style of half-graben rift basins bounded by major border faults and linked by accommodation zones. However, fault geometry and kinematics of rift architecture have not been rigorously tested, due to generally poor exposure and weak age control. This project will take advantage of well-exposed faults and shear zones in the area surrounding Lake Turkana on the eastern branch of the East African Rift System in order to evaluate existing models of upper crustal strain resulting from rifting. These and other studies will be integrated in order to develop a unified picture of rift development.