Geology

Geology

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Kathryn A Hedrick


Email: hedricka@mail.uc.edu

My interests cover a variety of topics, but I am most fascinated with the geomorphology of high mountains, and glaciated and arid regions, particularly with respect to how geomorphic landforms and landscapes may be used to interpret the tectonic and climatic history of a given region.  I have focused primarily on viewing the age of landforms and the processes at work in mountainous landscapes through the lens of cosmogenic dating and rate measurement techniques.

Education

  • B.S., Beloit College, Beloit, 2006 (Geology, East Asian Languages and Cultures).
  • M.S., University of Cincinnati, Cincinnati, 2009 (Geology).
  • PhD Candidate, University of Cincinnati, 2009 - present (Geomorphology and geochronology).

Research Information

Research Interests

My interests cover a variety of topics, but I am most fascinated with the geomorphology of high mountains, and glaciated and arid regions, particularly with respect to how geomorphic landforms and landscapes may be used to interpret the tectonic and climatic history of a given region.  

I have focused primarily on viewing the age of landforms and the processes at work in mountainous landscapes through the lens of cosmogenic dating and rate measurement techniques.  I have collected, processed, and interpreted hundreds of 10-Be cosmogenic ages from moraine and alluvial fan surface boulders and cobbles in order to determine the timing of glacial retreat in the Zanskar Himalaya in India and the timing of abandonment of alluvial fan surfaces in the Eastern Precordillera of Argentina.  I have also utilized 10-Be techniques to investigate the rate of erosion in two half-graben basins and their subcatchments in the Zanskar Himalaya.  I used 10-Be surface boulder ages to determine the age of allvuial fan surfaces and moraines in order to constrain the age of sedimentary deposits in the Pamir of western China.

In many of these studies I attempt to address some inherent difficulties of cosmogenic dating techniques by modelling cosmogenic depth profiles to determine potential values of inheritance, erosion, and shielding which may affect ages of surface clasts.  Where possible, I also attempt to apply optically stimulated luminescence (OSL) techniques to further constrain likely surface ages.

I am interested in broadening my research focus through the application of cosmogenic dating techniques to a wider variety of landforms in more diverse environments.

Research Support

  • (Primary Investigator), Kathryn A. Hedrick, Yeong Bae Seong, Lewis A. Owen, Marc W. Caffee, Craig Dietsch, Sigma Xi. (G200803150407), $500.00. 04/15/2008 to 10/09/2009. Status: Completed.
  • (Primary Investigator), Kathryn A. Hedrick, Yeong Bae Seong, Lewis A. Owen, Marc W. Caffee, Craig Dietsch, The Geological Society of America. (8773-08), $2400.00. 04/15/2008 to 10/09/2009. Status: Completed.

Publications

Peer Reviewed Publications

  • Hedrick, K.A., Seong, Y.B., Owen, L.A., Cafee, M.W., Dietsch, C. (2011). Towards defining the transition in style and timing of Quaternary glaciation between the monsoon-influenced Greater Himalaya and the semi-arid Transhimalaya of Northern India, Quaternary International, 236(1), 21-33. [Link]
  • Owen, L. A., Chen, J., Hedrick, K. A., Caffee, M. W., Robinson, A. C., Schoenbohm, L. M., Yuan, Z., Li, W., Imrecke, D.B., and Liu, J. (2012). Quaternary glaciation of the Tashkurgan Valley, Southeast Pamir. Quaternary Science Reviews, 47, 56-72. [Link]
  • Yuan, Z., Chen, J., Owen, L. A., Hedrick, K. A., Caffee, M., Li, W., Schoehnbohm, L.M., and Robinson, A. C. (2013). Nature and timing of large landslides within an active orogen, eastern Pamir, China. Geomorphology, 182, 49-65. [Link]

Under Review

  • Hedrick, K.A., Owen, L.A., Rockwell, T.K., Meigs, A., Costa, C., Caffee, M.W., and Masana, E. Timing and nature of alluvial fan and strath terrace formation in the Eastern Precordillera of Argentina. Submitted to Quaternary Science Reviews, January 2013.

Work in Progress

  • Hedrick, K.A., Owen, L.A., Dietsch, C., and Caffee, M.W. Relief production and denudation in a high-altitude Himalayan setting, Zanskar Himalaya.
  • Hedrick, K.A., Owen, L.A., Chen, J., Yuan, Z.D., and Caffee, M.W. The Quaternary sedimentological history of Waqia Valley, Chinese Pamir.

Presentations & Lectures

Poster Presentations

  • Hedrick, K.A. (04/20/2006). Structure and deposition of the Blue Mounds, West-Central Minnesota Geological Society of America, North Central Section, Akron, OH. [Link]
  • Hedrick, K.A., Seong, Y.B., Owen, L.A., Caffee, M.W., Dietsch, C. (10/18/2009). Defining the transition in style and timing between Quaternary glaciation in the semi-arid Transhimalaya and the monsoon-influenced Greater Himalaya in Northern India Geological Society of America, Annual Meeting, Portland, OR. [Link]
  • Hedrick, K.A. (2011). Rates of landscape erosion in Zanskar, northern India GSA Annual Meeting, Minneapolis. [Link]
  • Yuan, Z., Chen, J., Owen, L.A., Li, W., Hedrick, K.A., Caffee, M.W., and Schoenbohm, L.M. (2011). Cosmogenic nuclide dating of landslides/rock avalanches in NE Pamir, China GSA Annual Meeting, Minneapolis. [Link]

Experience & Service

Courses Taught

  • 15-GEOL-113 GEOLOGY LABORATORY
    Level: Undergraduate
    Term: 08S

  • 15-GEOL-111 GEOLOGY LABORATORY
    Level: Undergraduate
    Term: 09A