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Geomorphology Symposium 2005 Program

Geomorphology Symposium 2005 Pages

Geomorphology of Holocene-age Deposits along the Colorado River in Lower Glen Canyon and Grand Canyon: Factors and Processes Affecting Long-term Preservation

A Symposium February 8-10, 2005 at the Museum of Northern Arizona, Flagstaff, Arizona

Sponsored by the USGS Grand Canyon Monitoring and Research Center in collaboration with the National Park Service, Bureau of Reclamation, and Western Area Power Authority

Day 1: February 8, 2005

Session I: Establishing the Geomorphic Setting

8:30-8:45
Welcome, Housekeeping Items, Introduction of Discussants
8:45-9:45
Brief remarks by Alan Howard, Mike Blum, Fred Nials, Gordon Grant
View Presentation -- .pdf format
9:45-10:00
15 minute break
10:00-10:30
1. Holocene Terraces within the Larger Context of the Pleistocene Record of Grand Canyon, J. Pederson
View Presentation -- .pdf format
10:30-11:00
2. Effects of Tributary Debris on the Longitudinal Profile and Incision of the Colorado River in Grand Canyon, T.C. Hanks and R.H. Webb
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11:00-11:30
3. Debris Flows in Grand Canyon: Modeling Changes in the Longitudinal Profile of the Colorado River, R.H. Webb, P.G. Griffiths, and C. S. Magirl
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11:30-12:15
Follow-up Discussion
12:15-1:15
Lunch at MNA

Session II: Documenting Pre-Dam and Post-Dam System Changes

1:15-2:00
4. Climatic Variability and Water Resources in the Colorado River Basin with an Emphasis on Effects on Grand Canyon, R.H. Webb
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2:00-2:45
5. Computation and Analysis of the Instantaneous-Discharge Record for the Colorado River at Lees Ferry, Arizona: May 8, 1921 through September 30, 2000, D.J. Topping
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2:45-3:00
15 Minute Break
3:00-3:45
6. The Degraded Reach: Rate and Pattern of Bed and Bank Adjustment of the Colorado River in the 25 km immediately Downstream from Glen Canyon Dam, P.E. Grams, J.C. Schmidt and D.J. Topping
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3:45-4:30
7. System-Wide Changes in the Distribution of Fine Sediment in the Colorado River Corridor between Glen Canyon Dam and Bright Angel Creek, Arizona J.C. Schmidt, D.J. Topping, P.E. Grams and J.E. Hazel
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4:30-5:00
Follow-up Discussion
5:30-7 pm
Reception immediately following at the Embassy Suites

Day 2: February 9, 2005

Session III: Interpreting Holocene Record of Terrace Deposits

8:30-9:15
8. Holocene Aggradation of the Colorado River in Grand Canyon, S.W. Davis and M.E. Davis
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9:15-10:00
9. Late Holocene Alluvial History of the Colorado River in Grand Canyon R. Hereford
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10:00-10:20
20 Minute Break
10:20-11:00
10. Terrace Stratigraphy, Geomorphology, And Climate in Cataract Canyon as a Control for Analogous Grand Canyon Settings, A.R. Potochnik, K.S. Thompson, G.R. O'Brien and L.A. Neal
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11:00-11:45
11. Use of Sedimentary Structures to Infer Geomorphic and Hydrologic History of Channel-Margin Deposits, D.M. Rubin, A.E. Draut, R.E. Hunter, T.S. Melis, F.L. Nials, J.C. Schmidt, D.J. Topping
View Presentation -- .pdf format
These Videos were part of the presentation:
Movie-01--Colorado_River_Dunes.mov -- .mov format
Movie-02--fig34a.mov -- .mov format
Movie-03--fig_46-54_morph.mov -- .mov format
11:45-12:15
Follow-up Discussion
12:15-1:15
Lunch at MNA

Session IV: Interpreting Terrace Erosion History and Processes

1:15-2:15
12. A Geomorphic Classification for Archeological Sites and Description of Small Catchment Processes along the Colorado River in Grand Canyon, A.R. Potochnik and K.S. Thompson This presentation was combined with the following presentation.
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1:15-2:15
13. A Quantitative Model of the Erosional Vulnerability of Archeological Sites on Holocene Fluvial Terraces from Local Runoff, Colorado River, A.R. Potochnik, K.S. Thompson and R. Ryel This presentation was combined with the previous presentation.
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2:15-2:45
14. Twentieth Century Precipitation History of the Colorado Plateau and Northern Arizona, Relation to Increased Erosion of Prehistoric Colorado River Terraces in Grand Canyon, R. Hereford
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2:45-3:00
15 minute break
3:00-3:45
15. Gully Erosion of Holocene Terraces in Grand Canyon-Results of Recent Study, J. Pederson
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3:45-4:15
16. Monitoring Arroyos with Conventional Survey Techniques in Grand Canyon: 1996-2004, J. Hazel, M. Kaplinski, and R. Parnell
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4:15-5:00 pm
Follow-up Discussion

(Dinner on your own)


Day 3: February 10, 2005

Session IV: Exploring Terrace Restoration Options with Dam Operations

8:30-9:15
17. Modeling of the Effects of Water and Sand Discharge on Sand Deposition in Archeologically Significant Reaches of the Colorado River in Grand Canyon S. Wiele and M. Torrizo
View Presentation -- .pdf format
These Videos were part of the presentation:
alc100-96.avi -- .avi format
pal100-96.avi -- .avi format
q100-56b.avi -- .avi format
9:15-10:00
18. The Role of Aeolian Sediment Transport in the Preservation of Archaeological Sites, Grand Canyon: Developing Criteria for Evaluating Dam Impact, A.E. Draut, D.M. Rubin and T. Melis
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10:00-10:20
20 Minute Break

Session V: Panel Discussion: What we know and where we might go in the future

10:20-11:50
Informal presentations/discussion by Alan Howard, Mike Blum, Fred Nials and Gordon Grant
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11:50-12:00
Wrap and Adjourn

Luch on your own!