Studies on erosion rates and erosion patterns of volcanic terrains in the Central Andes by using DEM analysis and geochronological constraints

我们计划根据1)气候和降水、2)地形和坡度以及3)火山表面的年龄和岩石类型之间的相互作用，对中央安第斯山脉火山结构和表面的侵蚀模式和侵蚀速率进行量化。我们将使用最先进的数字高程模型(SRTM)、卫星图像和形态测量软件来量化降水和基质对比地区的侵蚀模式和体积。具体来说，我们将研究西安第斯边缘不同年龄(5至25 Ma)的层状火山和形成高原的褐沸石表面，以及在16°至23°S之间切割到褐沸石参考面的山谷。为了估计侵蚀速度，我们将使用我们自己和已发表的年龄信息。

We plan to quantify erosion patterns and erosion rates on volcanic structures and surfaces in the Central Andes with respect to an the interplay between 1) climate and precipitation, 2) topography and gradient, and 3) age and rock types of the volcanic surfaces. We will use state-of-the-art digital elevation models (SRTM), satellite imagery and morphometric software to quantify erosion patterns and volumes in regions of contrasting precipitation and substrate. In detail, we will study stratovolcanoes and plateau-forming ignimbrite surfaces of different age (5 to 25 Ma) along the western Andean margin as well as valleys incised in to the ignimbrite reference surface between 16° and 23°S. To estimate erosion rates, we will use our own and published age information.