Surface-elevation change and ice velocities have been measured over the debris-covered tongue of Chacraraju, Peru. Elevation change was measured by reflectorless survey at a 1 m horizontal resolution over three separate ...

We report cosmogenic surface exposure 10Be ages of 21 boulders on moraines in the Jeullesh and Tuco Valleys, Cordillera Blanca, Peru (10°S at altitudes above 4200 m). Ages are based on the sea-level at high-latitude reference ...