Surface uplift, W. flank of central Andes
This was part of my Ph. D. work at Cornell University aimed at trying to quantitatively deduce the latest Miocene surface uplift of the western flank of the Andes, something always inferred (particularly by Isacks, 1988) but never quantified. Here I analyzed river profiles that traverse the western flank of the range. Using the projection of knickpoint bounded stream segments I could account for ~ 1 km of uplift over the last 10 Ma. This is similar to estimates obtained using stratal rotations seen in seismic, the work of current Cornell graduate student P. L. Nester
Related abstracts/publications:
Hoke, G. D., Isacks, B. L., Jordan T.E. and Blanco Pavez, N., Geomorphic evidence for post-10 Ma uplift of the western flank of the central Andes 18°30'-22°S (in revision after positive review for Tectonics)
Nester, P. L., Jordan, T. E., Tomlinson, A. J. and Hoke, G. D., 2006, Evidence for late Miocene uplift by longwavelength rotation of the western flank of the cenral Andes 20°30’ – 21°30’ S, Chile (poster presentation), Backbone of the Americas (Geological Society or America), Mendoza Argentina (April 2006)
Hoke, G.D., Isacks, B. L., Jordan T. E. and Blanco Pavez, N., 2005, Geomorphic evidence for post-10 Ma uplift of the western flank of the central Andes 18°30'-22°S (oral presentation), 2005 Geological Society of America Annual meeting, Salt Lake City, UT.
Hoke, G. D., Isacks B. L, Jordan T. E. and Yu, J. S., 2004, A groundwater origin for the giant quebradas of northern Chile: Geology 32 (7), p. 605-608. doi: 10.1130/G20601.1
Gregory D. Hoke
Research
Participants: G. D. Hoke, T. E. Jordan, B. L. Isacks, P. L. Nester
Funding: NSF (Jordan and Isacks), NASA ESE Fellowship (Hoke)
3D perspective of the western Andean mountain front, northern Chile