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ucin1307320889.pdf (1.32 MB)
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Abstract Header
Slow denudation within an active orogen: Ladakh Range, northern India
Author Info
Reynhout, Scott A.
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307320889
Abstract Details
Year and Degree
2011, MS, University of Cincinnati, Arts and Sciences: Geology.
Abstract
Cosmogenic beryllium-10 measurements of both bedrock and basin denudation reveal strong topographic-climatic control on erosion within the Ladakh Range of northwestern India. Bedrock weathering rates, extremely slow below the contemporary equilibrium line altitude, increase by an order of magnitude at the high-elevation range divide. Along the southern slope of the Range south of the range divide, rates of ridge crest summit lowering vary from 0.02±0.03 m/Myr to 0.7±0.09 m/Myr, whereas rates of range divide summit lowering vary from 4.97±0.45 m/Myr to 13.13±1.17 m/Myr. Long-term denudation rates of nonglaciated basins are the lowest yet reported. Accelerated glacial and periglacial erosion near the range divide drives a “frost buzzsaw” in this region that works to selectively destroy high topography. The actively-eroding glacial landscape stands in stark contrast to hillslopes at lower elevations, which have achieved long-term, near equilibrium conditions and may represent extant Pliocene or older landscapes.
Committee
Craig Dietsch, PhD (Committee Chair)
Marc Caffee, PhD (Committee Member)
Lewis Owen, PhD (Committee Member)
Pages
34 p.
Subject Headings
Geomorphology
Keywords
cosmogenic
;
denudation
;
buzzsaw
;
erosion
;
glacial
;
weathering
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Citations
Reynhout, S. A. (2011).
Slow denudation within an active orogen: Ladakh Range, northern India
[Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307320889
APA Style (7th edition)
Reynhout, Scott.
Slow denudation within an active orogen: Ladakh Range, northern India.
2011. University of Cincinnati, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307320889.
MLA Style (8th edition)
Reynhout, Scott. "Slow denudation within an active orogen: Ladakh Range, northern India." Master's thesis, University of Cincinnati, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1307320889
Chicago Manual of Style (17th edition)
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Document number:
ucin1307320889
Download Count:
565
Copyright Info
© 2011, some rights reserved.
Slow denudation within an active orogen: Ladakh Range, northern India by Scott A. Reynhout is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by University of Cincinnati and OhioLINK.