College of Forestry

Watershed Processes Group

Geomorphology Round Table Seminar Series

Geomorphology Brown Bag - Winter 2013
Tuesday 12 - 1 pm in Wilkinson 203
Age and incision history of the Grand Canyon

The first half of winter term will look at the incision history of the Grand Canyon from the historical perspective, accompanied by an introduction to the "old vs. new canyon" debate.  The second part of the term will focus on studies of modern processes within the canyon.  Volunteers can pick from either topic using the bibliography below, compiled by Nick & Lalo, or an article of your choice.

email Sarah to sign up to present

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Presenter: Lalo G.

Introduction: background on Old Canyon/Young Canyon

Presenter: Lalo G.  &  Andrew M.

Flowers & Farley, 2012. Apatite4He/3He and (U-Th)/He Evidence for an Ancient Grand Canyon. Science 3381616; DOI: 10.1126/science.1229390;

Presenter: Diana D.

Dorsey, R.J., Fluette, A., McDougall, K.A., Housen, B.A., Janecke, S.U., Axen, G.J., and Shirvell, C.R., 2007, Chronology of Miocene– Pliocene deposits at Split Mountain Gorge, southern California: A record of regional tectonics and Colorado River evolution: Geology, v. 35, p. 57–60, doi:10.1130/ G23139A.1

Presenter: Laura H.

Pederson, J. 2008, The mystery of the pre-Grand Canyon Colorado River- Results from the Muddy Creek Formation. GSA Today 18:3, 4-10; and an article about it:

Lucchitta, I., 1972, Early history of the Colorado River in the Basin and Range Province: Geological Society of America Bulletin, v. 83, p. 1933–1948.

72_Lucchitta_GSAB.pdf , Attachments:
Presenter: Gordon G.

House et al., 2008. Stratigraphic evidence for the role of lake spillover in the inception of the lower Colorado River in southern Nevada and western Arizona. GSA Special Paper 439, p. 335-353.

Presenter: Nick L.

Howard, A., and Dolan, R., 1981, Geomorphology of the Colorado River in the Grand Canyon: The Journal of Geology, 89: 269–298.

Presenter: Jack Z.

Hanks & Webb, 2006. Effects of tributary debris on the longitudinal profile of the Colorado River in Grand Canyon JGR doi:10.1029/2004JF000257.

Presenter: Jack Z.

Cook et al., 2009. Rapid incision of the Colorado River in Glen Canyon - insights from channel profiles, local incision rates, and modeling of lithologic controls. Earth Surface Processes and Landforms 34: 994-1010.

Presenter: Caroline N.

Bowers, J.E., Webb, R.H., and Pierson, E.A., 1997, Succession of desert plants on debris flow terraces, Grand Canyon, Arizona, USA: Journal of Arid Environments, v. 36, no. 1, p. 67–86.

Presenter: Anne N.

Schwartz, 1965 & Schwartz et al., 1958; Archaeology of the Grand Canyon.

see also: recent excavations at Grand Canyon National Park.

and a general overview of GC archaeology

Schwartz_1965.pdf , Attachments: