See more from this Division: Topical Sessions
See more from this Session: Analog Sites and Field Exercises for Training Planetary Field Geologists
Abstract:
The 5 km high Wickersham Wall of Denali is perhaps the largest exposed vertical cross section through a complex of igneous plutons on Earth. The Peters Glacier along the base of the Wickersham Wall brings geologic samples away from the rockfalls and avalanches of this unexplored feature in a manor somewhat analogous to lunar cratering. Samples of the granitic plutons of Denali, their metamorphic contacts and fault gouge are required to understand the history and origin of this massive feature.
A network of geophysics stations on Denali with seismographs and range-finding with GPS control would establish 3D fault movement and improve the understanding of regional tectonics (the Denali fault experienced a magnitude 7.9 earthquake in 2002). Ice cores into the Peters Dome and observation of the hanging glaciers of the Wickersham Wall would document climate change (the Arctic Ocean was open in September 2007).
The Jeffery Dome, at the base of the Wickersham Wall, Denali, provides a safe location for an analog outpost similar to the type NASA is studying for the next phase of lunar exploration. A simulation of a lunar mission at this site would allow exploration of the Wickersham Wall while testing personnel, procedures and equipment. Although potentially dangerous, this location is within the substantial safety network that supports mountaineering on Denali.
See more from this Division: Topical Sessions
See more from this Session: Analog Sites and Field Exercises for Training Planetary Field Geologists