Continued Studies of the Exposure Ages Geomorphic Surfaces Using Cosmogenic 3He

计划继续研究地表岩石中的宇宙成因3He 为了确定矿物的暴露历史 宇宙辐射。 过去18个月的工作已记录在案 宇宙成因的3He可以用来确定冰川事件，火山事件， 火山爆发，洪水事件，可以更好地限制侵蚀， 矿物颗粒在地表环境中的迁移历史。 我们的研究将集中在限制生产率上 宇宙成因的氦作为时间，高度， 纬度 此外，我们将继续我们的研究约会 的侵蚀和输运过程 风成、河流和海滩沉积物中的矿物。

Continued studies of cosmogenic 3He in surface rocks are planned for the purpose of determining the exposure history of minerals to cosmic radiation. The previous 18 months work has documented that cosmogenic 3He can be used to date glacial events, volcanic eruptions, flood events, and can better constrain the erosion and transport history of mineral grains in the surface environment. Our studies will concentrate on constraining the production rate of cosmogenic helium as a function of time, altitude, and latitude. Furthermore, we will continue our studies on dating geomorphic events and on the erosion and transport processes of minerals in eolian, riverine, and beach deposits.