Colleagues,
We would like to draw your attention to a
topical session on advances in detrital thermochronometry and cosmogenic
nuclide dating at the AGU
Fall meeting this year. We welcome contributions in both method
development and applications to tectonics, surface processes, and
hazards.
T028: Linking tectonic deformation
and surface processes using detrital thermochronometry and cosmogenic
nuclide denudation rates
Session ID#: 9101
Session Description:
Low-temperature
thermochronometry is used in active tectonics studies to elucidate the
dynamics of orogenesis by constrainting fault initiation and rates of
motion. However, in collisional orogens, exhumation is modulated by
erosion and interpretation of low-temperature (< 200°C) thermal
histories requires the assumption that such exhumation is a viable proxy
for fault slip rates. Thus, there is an inherent link between surface
processes that shape the large-scale topography of mountain belts and
thermal histories preserved within them. Cosmogenic nuclides, on the
other hand, provide independent estimates of short-term erosion rates
(103 – 105 yr), via concentrations of 10Be and other cosmogenic nuclides
in detrital minerals, that complement low-temperature thermal
histories. This session explores advances in detrital low-temperature
thermochronometry and its potential link to short-term erosion rates
derived from cosmogenic nuclides. Contributions that explore new
directions in detrital thermochronometry or combine thermochronometry
and cosmogenic nuclide dating are especially encouraged.
Cross-Listed:
Sincerely,
Marin Clark
Amanda Schmidt
Nathan Niemi
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|
Nathan Niemi
Associate Professor
Director, Camp Davis Field Station
Editor, Tectonics
University of
Michigan | Earth and Environmental
Sciences
2534 Little Clarence
Cook Science Building
1100 N. University Avenue, Ann Arbor, MI 48109, USA
phone: +1
734.764.6377; email: [log in to unmask]
http://www.earth.lsa.umich.edu/~naniemi/ |