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Processes and rates of headcut migration in eastern Colorado gullies: West Bijou Creek field trip guide

By
Francis Rengers
Francis Rengers
Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Geological Sciences, University of Colorado at Boulder, Boulder, Colorado 80309, USA
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Gregory E. Tucker
Gregory E. Tucker
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Published:
January 01, 2013

Abstract

This field trip highlights gully erosion in the Denver Basin in eastern Colorado. We will explore gully dynamics including: cycles of channel filling and erosion, head-cut migration, and landscape evolution. Research on this site combines observations of modern processes through field instrumentation and a perspective on Quaternary evolution with optically stimulated luminescence dating. Our work at this site has produced insight into the nature of gully erosion. We have found that headcut retreat is controlled by both saturation and drying events, and there is a correlation between the headcut retreat rate and the upstream drainage area. Additionally, through numerical modeling we found that vegetation patterns control long-term gully longitudinal profiles evolution.

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Contents

GSA Field Guide

Classic Concepts and New Directions: Exploring 125 Years of GSA Discoveries in the Rocky Mountain Region

Lon D. Abbott
Lon D. Abbott
Department of Geological Sciences University of Colorado Boulder, Colorado 80305 USA
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Gregory S. Hancock
Gregory S. Hancock
Department of Geology College of William and Mary Williamsburg, Virginia 23187 USA
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Geological Society of America
Volume
33
ISBN electronic:
9780813756332
Publication date:
January 01, 2013

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