B31G:
Biomarkers from Source to Sink: Bridging the Transition from Empirical Relationships to Mechanistic Theory I

Submit an Abstract to this Session



Session ID#: 31759

Session Description:
Biomarkers can provide information on numerous processes including cellular metabolism, ecohydrology, sediment transport, diagenesis, atmospheric or water chemistry, and paleoclimate. Interpretations of organic matter molecular and isotopic signals from plant waxes, algal markers, alkenones, GDGTs, or other compounds are grounded in empirical correlations. Progress towards mechanistic understandings of how environmental factors influence biosynthesis, and how biomarker signals are modified through transport and deposition, can increase the value of these data and open opportunities for expanded applications. This session solicits contributions investigating these questions from source to sink, including biosynthesis, transport, and post-depositional alteration or production at all timescales and in any depositional environment. We also seek studies that use or test process-based interpretations of biomarker data to infer environmental, ecologic, or climatic conditions in the past or present such as temperature, hydroclimate, CO2 levels, atmosphere or ocean circulation, or salinity.
Primary Convener:  Daniel B Nelson, University of Basel, Department of Environmental Sciences - Botany, Basel, Switzerland
Conveners:  Isla S. Castañeda, University of Massachusetts Amherst, Department of Earth, Geographic, and Climate Sciences, Amherst, MA, United States, William J D'Andrea, Columbia University of New York, Palisades, NY, United States and Aaron F Diefendorf, University of Cincinnati, Cincinnati, United States
Chairs:  Daniel B Nelson, University of Basel, Department of Environmental Sciences - Botany, Basel, Switzerland, Isla S. Castañeda, University of Massachusetts Amherst, Department of Earth, Geographic, and Climate Sciences, Amherst, MA, United States and Aaron F Diefendorf, University of Cincinnati Main Campus, Department of Geosciences, Cincinnati, United States
OSPA Liaison:  Daniel B Nelson, University of Basel, Department of Environmental Sciences - Botany, Basel, Switzerland

Cross-Listed:
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

0424 Biosignatures and proxies [BIOGEOSCIENCES]
0473 Paleoclimatology and paleoceanography [BIOGEOSCIENCES]
1055 Organic and biogenic geochemistry [GEOCHEMISTRY]
4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]

Abstracts Submitted to this Session:

Carbon Burial at the Land Ocean Interface: Climate vs Human Drivers (276335)
Craig Smeaton, University of St Andrews, School of Geography & Sustainable Development, St Andrews, United Kingdom, Thomas S S Bianchi, University of Florida, Department of Geological Sciences, Gainesville, United States, Xingqian Cui, Shanghai Jiao Tong University, School of Oceangraphy, Shanghai, China, John alexander Howe, Scottish Association for Marine Science, Oban, United Kingdom and William (Bill) Austin, University of St Andrews, School of Geography and Sustainable Development, St Andrews, United Kingdom
Organic matter diagenesis within the water column and surface sediments of the northern Sargasso Sea revealed by lipid biomarkers (280733)
Maureen H Conte1,2, Dr. Rut Pedrosa Pamies3 and JC Weber3, (1)Bermuda Institute of Ocean Sciences, St.George's, Bermuda, (2)Marine Biological Laboratory, The Ecosystems Center, Woods Hole, MA, United States, (3)Marine Biological Laboratory, The Ecosystems Center, Woods Hole, United States
Ancient Terrestrial Carbon: Lost and Found (Invited) (282820)
Katherine H Freeman, The Pennsylvania State University, Department of Geosciences, University Park, United States
Compound-Specific Radiocarbon Dating Reveals the Age Distribution of Plant-Wax Biomarkers Exported to the Bengal Fan (296273)
Valier Galy1, Katherine Louise French1,2, Christopher J Hein3, Negar Haghipour4, Lukas Wacker5, Hermann Kudrass6 and Timothy I Eglinton7, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)USGS, Central Energy Resources Science Center, Denver, CO, United States, (3)Virginia Institute of Marine Science, William & Mary, Gloucester Point, United States, (4)ETH, Ion Beam Physics, Zürich, Switzerland, (5)ETH Swiss Federal Institute of Technology Zurich, Laboratory for Ion Beam Physics, Department of Physics, Zurich, Switzerland, (6)MARUM - University of Bremen, Bremen, Germany, (7)ETH Zurich, Geological Institute, Zurich, Switzerland
Hydrodynamic Influences on Multiproxy-based Paleoclimate Reconstructions from Marine Sediments (252267)
Blanca Ausin Gonzalez1, Clayton Magill2, Pascal Wenk1, Gerald Haugh3, Cameron McIntyre4, Negar Haghipour5, David A Hodell6 and Timothy I Eglinton7, (1)ETH Zurich, Zurich, Switzerland, (2)Heriot-Watt University, Lyell Centre, Edinburgh, United Kingdom, (3)Max Planck Institute for Chemistry, Climate Geochemistry, Mainz, Germany, (4)ETH Swiss Federal Institute of Technology Zurich, Physics, Laboratory of Ion Beam Physics, Zurich, Switzerland, (5)ETH, Ion Beam Physics, Zürich, Switzerland, (6)University of Cambridge, Godwin Laboratory for Palaeoclimate Research, Department of Earth Sciences, Cambridge, United Kingdom, (7)ETH Zurich, Geological Institute, Zurich, Switzerland
Temporal deconvolution of vascular plant signatures delivered to coastal sediments (285283)
Jorien Vonk, Vrije Universiteit Amsterdam, Department of Earth Sciences, Amsterdam, Netherlands, Nicholas J Drenzek, Self Employed, Washington, DC, United States, Konrad A Hughen, Woods Hole Oceanographic Institution, Woods Hole, United States, Rachel HR Stanley, Wellesley College, Wellesley, United States, Daniel B. Montluçon, ETH Swiss Federal Institute of Technology Zurich, Department of Earth Sciences, Zurich, Switzerland, Cameron McIntyre, ETH Swiss Federal Institute of Technology Zurich, Physics, Laboratory of Ion Beam Physics, Zurich, Switzerland, John Richard Southon, Univ California, Earth System Science, Irvine, United States, Guaciara Santos, University of California at Irvine, Irvine, United States, August Andersson, Stockholm University, Department of Environmental Science and Analytical Chemistry, Stockholm, Sweden, Martin Sköld, Stockholm University, Department of Mathematics, Stockholm, Sweden and Timothy I Eglinton, ETH Zurich, Geological Institute, Zurich, Switzerland
Evaluating sourcing and fluvial integration of plant wax biomarkers from the Peruvian Andes to Amazonian lowlands (226607)
Mong Sin Wu1, Sarah J Feakins1, Camilo Ponton2, A. Joshua West3 and Valier Galy4, (1)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (2)Western Washington University, Bellingham, WA, United States, (3)University of Southern California, Los Angeles, CA, United States, (4)Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Geomorphic and geochemical controls on leaf wax biomarker transport and preservation in alluvial river systems: Rio Bermejo, Argentina (218152)
Marisa Nicole Repasch, PhD1, Dirk Sachse1, Niels Hovius2, Joel S Scheingross1 and Ricardo Nicolas Szupiany3, (1)GFZ German Research Centre for Geosciences, Potsdam, Germany, (2)Deutsches GeoForschungsZentrum GFZ, Section 4.6 Geomorphology, Potsdam, Germany, (3)National University of the Littoral and National Council of Scientific and Technical Research, Center for Fluvial and Hydro-Environmental Studies of the Littoral, Faculty of Engineering and Water Sciences, Santa Fe, Argentina

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