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SUMMARY:Dynamics of Carbon Movement within River and Ocean Basins
DTSTART:20140930T161500
DTEND:20140930T171500
DTSTAMP:20260506T231754Z
UID:74f355830060b9070b585889efd1e5da429f7da30b7bb5baba6d0952
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr Timothy I. Eglinton\, Biogeoscience\, Geological Institute\
 , Department of Earth Sciences\, ETH Zürich\nAbstract:\nThere is growing 
 evidence that organic matter can be mobilized and widely dispersed by rive
 rs\, wind and ocean currents such that it may come to rest many hundreds t
 o thousands of kilometers away from its site of formation.  Moreover\, th
 e timescales over which carbon moves from biological source to sedimentary
  sink can vary considerably. Characterizing the nature and dynamics of org
 anic carbontransport processes is important for our understanding of the r
 ole of organic matter in the global carbon cycle\, for interpreting sedime
 nt records\, and for understanding the dispersal of natural and anthropoge
 nic chemicals in the aquatic environment.\nNatural abundance variations in
  the radiocarbon content of organic matter provide a powerful tool to expl
 ore carbon dynamics.  Radiocarbon measurements on source-specific “biom
 arker” organic compounds affordnovel insights into the sources and age o
 f organic matter within the complex matrices encountered in the environmen
 t (soils\, sediments etc.).  When coupled with other information on organ
 ic carbon and sediment provenance\, it is possible to build a detailed pic
 ture of carbon movement within river and ocean basins. In this presentatio
 n\, I will outline the approach that we are pursuing\, provide examples of
  observations stemming from studies of a range of terrestrial and marine s
 ystems\, and discuss implications for our understanding of the carbon cycl
 e and cycling of associated materials.Short biography:\nT. Eglinton obtain
 ed a Bachelor’s degree in Environmental Science from Plymouth Polytechni
 c (UK)\, and Masters and PhD degrees in Organic Geochemistry from the Univ
 ersity of Newcastle (UK). After postdoctoral positions in the Netherlands 
 (Delft Technical University) and Norway (Oslo University)\, he was appoint
 ed to the Scientific Staff at Woods Hole Oceanographic Institution\, WHOI 
 (USA) in 1989. He was a member of the WHOI Scientific Staff for 21 years\,
  including serving as Chair of the Marine Chemistry & Geochemistry Departm
 ent between 2007 and 2010.  In July 2010\, he began a Professorship in Bi
 ogeoscience within the Geological Institute\, Department of Earth Sciences
  at ETH Zürich.\nT. Eglinton’s research is focused on understanding of 
 the processes that govern the Earth’s carbon cycle from the molecular le
 vel to the global scale\, and on the legacy of past biological activity an
 d environmental conditions embedded in organic signatures that are preserv
 ed in the geologic record. This is centered on a “source-to-sink” appr
 oach that examines the production\, transport\, transformation and burial 
 of organic materials produced by theterrestrial and marine biosphere at th
 e Earth surface over a range of spatial and temporal scales. Current empha
 sis is placed on better understanding basin-scale organic matter dynamics 
 within terrestrial and oceanic realms\, with a focus on modern-day carbon 
 cycle processes\, and on variability in the carbon cycle during the Late Q
 uaternary.
LOCATION:GR A3 31 http://plan.epfl.ch/?room=GR%20A3%2031
STATUS:CONFIRMED
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