We welcome contributed abstracts to the upcoming session at this year's
Fall AGU Meeting in San Francisco:
BO55: New insights and approaches for recent dating of peat and aquatic
sediments
*Session ID#: *12833
*Session Description:*
Establishing chronologies of peats and sediments on a 10^2 -year
(recent) timescale is important for quantifying processes such as carbon
sequestration, vertical accretion, and changes in contaminant loading in
a range of wetland and aquatic ecosystems. Determining uncertainties in
dating is key to achieving good estimates, yet, of the many
approaches available (i.e.,^137 Cs, ^210 Pb, ^14 C wiggle-matching, fly
ash, tephra, organic and inorganic pollutant time markers, ^241 Am, ^207
Bi, pollen, etc.), few routinely incorporate error analyses. For this
session, we are interested in assessing uncertainties in recent dating
methods and identifying conditions under which a particular technique
works best, fails or has high uncertainties and why. We welcome papers
emphasizing (1) new or adapted empirical models, which improve dating
accuracy, (2) protocols for better quantifying uncertainties, (3)
factors/processes that affect vertical profiles of radionuclide tracers,
and/or (4) field studies in which unusual patterns have led to new
insights in dating.
*Primary Convener: Judith Z Drexler*, USGS California Water Science
Center Sacramento, Sacramento, CA, United States
*Conveners: Christopher Fuller*, USGS Western Regional Offices Menlo
Park, Menlo Park, CA, United States and *Mark M Baskaran*, Wayne State
University, Detroit, MI, United States
**
*Co-Organized with: Biogeosciences*, Hydrology, and Ocean Sciences
https://agu.confex.com/agu/fm16/preliminaryview.cgi/Session12833
We look forward to seeing you there!
