In order to join virtual sessions, you must be registered and logged-in(Were you registered for the in-person meeting in Denver? if yes, just log in.) 
Note: All session times are in Mountain Daylight Time.

Rock Glacier Development in the San Juan Mountains

Authors: Brandon Bailey*,
Topics: Cryosphere, Geomorphology
Keywords: glacier, geomorphology, physical geography, cryosphere, paleoclimate
Session Type: Poster
Presentation File: No File Uploaded

The aims of this research are to examine evidence of neoglacial cooling on multi-lobed rock glaciers to better understand how rock glaciers develop at local and regional levels. Relative age determination techniques were used on three rock glaciers found in two neighboring northern-sloped basins in the San Juan Mountains of Colorado. A total of 41 field sites were established at varying points of interests distributed across all three rock glaciers. The relative rock hardness at each site was measured with a schmidt hammer, a tool normally used to measure the strength of concrete. Mean rebound(r)-values were derived from a single impact on 50 boulders of uniform lithology. Weathering-rind measurements were collected at 11 of the field sites and median rind thickness was derived from 30 boulders using digital calipers. Results show that mean r-values decrease with distance from the source rock. Continued analysis will include weathering-rind data, an estimate of percent total lichen cover at each site from photographs taken in the field, and topographical measurements of each rock glacier derived from GIS software.

To access contact information login