B33A:
Biomarkers from Source to Sink: Bridging the Transition from Empirical Relationships to Mechanistic Theory III Posters

Submit an Abstract to this Session



Session ID#: 25887

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, EAWAG Swiss Federal Institute of Aquatic Science and Technology, Duebendorf, 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
Co-Organized with:
Biogeosciences, and Paleoceanography and Paleoclimatology

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:

Novel Bacterial Proteins and Lipids Reveal the Diversity of Triterpenoid Biomarker Synthesis (284810)
Jeremy H. Wei1, Amy B Banta1, Clare C. C. Gill2, Jose-Luis Giner3 and Paula V Welander1, (1)Stanford University, Earth System Science, Stanford, CA, United States, (2)Stanford University, Stanford, CA, United States, (3)State University of New York College of Environmental Science and Forestry, Dept. of Chemistry, Syracuse, NY, United States
Sterol Alkyl Ethers in Immature Callovian (Middle Jurassic) Sediments of Pas de Calais and Normandy (France): Environmental Constraints on their Potential Origins. (296446)
Fabien P H Kenig, University of Illinois at Chicago, Department of Earth and Environmental Sciences, Chicago, IL, United States
Structural Exploration of the Two HBI Alkanes in the Chinese Maoming Oil Shale (230578)
Jing Liao1, Hong Lu1, Qingtao Wang2 and Youping Zhou Sr3, (1)Guangzhou Institute of Geochemistry, Guangzhou, China, (2)Chinese Academy of Sciences, Beijing, China, (3)Southern University of Science & Technology, Shenzhen, China
Biomarker reconstruction of phytoplankton productivity and community structure changes in the mud area southwest off Cheju Island during the past 9 ka (247609)
Zi-Cheng Wang, Xiaotong Xiao, Zi-Neng Yuan, Fei Wang, Lei Xing, Li Li and Meixun Zhao, Ocean University of China, Qingdao, China
Oh Magadi! Interpreting isoGDGTs and n-alkanes in a saline tropical lake: Lake Magadi, Kenya (243845)
Troy M Ferland, Lamont -Doherty Earth Observatory, Palisades, United States, Josef Peter Werne, University of Pittsburgh, Pittsburgh, PA, United States, Isla S. Castañeda, University of Massachusetts Amherst, Department of Earth, Geographic, and Climate Sciences, Amherst, MA, United States, Andrew S Cohen, Univ of Arizona, Tucson, United States, Tim K Lowenstein, Binghamton University, Department of Earth Sciences, Binghamton, United States, Daniel Deocampo, Georgia State University, Department of Geosciences, Atlanta, GA, United States, Robin Renaut, University of Saskatchewan, Saskatoon, SK, Canada and Owen Richard Bernhart, Chiang Mai University, Unit for Social and Environmental Research, Chiang Mai, Thailand
Introducing TEX86 as a Water pH Proxy for Alkaline Lakes on the Tibetan Plateau (252349)
Mingda Wang1, Qian Tian1, Xiumei Li1, Jie Liang2, Yue He1 and Juzhi Hou1, (1)ITP Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China, (2)Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, China
Branched GDGT distributions in lakes from Mexico and Central America (262509)
Aster Lei, University of Pittsburgh, Pittsburgh, PA, United States, Josef P. Werne, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, United States, Alexander Correa-Metrio, Universidad Nacional Autonoma de Mexico, Instituto de Geociencias, Querétaro, Mexico, Liseth Perez, Universidad Nacional Autonoma de Mexico, Departamento de Paleontología, Mexico City, Mexico and Margarita Caballero, Universidad Nacional Autonoma de Mexico, Instituto de Geofísica, Mexico City, Mexico
What Do GDGT Thermometers Tell us About Environmental Changes During the Holocene in Central Africa? (285820)
Guillemette Menot, Ecole Normale Supérieure Lyon, Lyon, France, Yannick Garcin, University of Potsdam, Institute of Earth and Environmental Science, Potsdam, Germany, Edouard G Bard, CEREGE, Aix-en-Provence Cedex, France and Pierre Deschamps, Aix Marseille Univ, CNRS, IRD, INRAE, Coll France, CEREGE, Aix-en-Provence Cedex, France
BrGDGT-based quantitative temperature reconstruction over the past 2000 years from an alpine lake in subtropical southwestern China (269193)
Cheng Zhao and Xiaoping Feng, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China
Modern calibration of Tussac grass (Poa flabellata) as a new paleoclimate proxy in the Falkland Islands (240788)
Dulcinea V Groff, University of Maine, Orono, ME, United States, David G Williams, Univ Wyoming, Laramie, WY, United States and Jacquelyn L Gill, University of Maine, Climate Change Institute, Orono, ME, United States
Multi-proxy Organic Geochemical Reconstruction of Holocene Hydroclimate Near the Western Greenland Ice Sheet Margin (216193)
Allison Cluett, University at Buffalo, Buffalo, NY, United States and Elizabeth K Thomas, University at Buffalo, Geology, Buffalo, NY, United States
Paleohydrology of the Polar Urals from the Last Glacial Maximum Through the Holocene (244052)
Owen Cowling, University at Buffalo, Department of Geology, Buffalo, United States, Elizabeth K Thomas, University at Buffalo, Department of Geology, Buffalo, NY, United States, John Inge Svendsen, University of Bergen, Department of Earth Sciences, Bergen, Norway and Haflidi Haflidason, University of Bergen, Department of Earth Science and Bjerknes Centre of Climate Research (BCCR), Bergen, Norway
Constraining Lipid Biomarker Paleoclimate Proxies in a Small Arctic Watershed (261652)
Hannah Dion-Kirschner, Northwestern University, Evanston, IL, United States, Jamie McFarlin, University of Colorado at Boulder, Geological Sciences, Boulder, CO, United States, Yarrow Axford, Northwestern University, Earth, Environmental, and Planetary Sciences, Evanston, IL, United States and Magdalena R Osburn, Northwestern University, Earth and Planetary Sciences, Evanston, IL, United States
Reconstructing hydroclimatic variations using compound-specific hydrogen isotope analysis of biomarkers from a maar lake in the Central Highlands, Vietnam (297283)
Kelsey E. Doiron, Indiana University Bloomington, Earth and Atmospheric Sciences, Bloomington, IN, United States, Lora R Stevens, California State University Long Beach, Geological Sciences, Long Beach, CA, United States and Peter E Sauer, Indiana Univ, Bloomington, IN, United States
Early-Holocene intensified Indian summer monsoon and its impact on vegetation: study based on hydrogen and carbon isotope values in long chain alkane from relict lake sediments in the Central Himalaya (254497)
Prasanta Sanyal, Indian Institute of Science Education and Research Kolkata, Department of Earth Sciences, Mohanpur, India, Sambit Ghosh, Indian Institute of Science Education and Research Kolkata, Kolkata, India, Ravi Bhushan, Physical Research Laboratory, Geosciences Division, Ahmedabad, India and Navin Juyal, Physical Research Laboratory, Ahmedabad, India
Variability of Plant Wax Concentrations and Carbon Isotope Values in Surface Lake Sediments Provide Clues into Their Transport and Deposition (294557)
Benjamin Bates, University of Cincinnati Main Campus, Cincinnati, OH, United States, Thomas V Lowell, University of Cincinnati, Department of Geosciences, Cincinnati, United States, Aaron F Diefendorf, University of Cincinnati Main Campus, Department of Geosciences, Cincinnati, United States, Erika J Freimuth, University of Cincinnati, Cincinnati, OH, United States and Alexander K Stewart, St. Lawrence University, Canton, NY, United States
Insights into particle cycling in the Sargasso Sea from lipid biomarkers in suspended particles: Seasonality and physical forcing (279047)
Dr. Rut Pedrosa Pamies1, Maureen H Conte2,3 and JC Weber1, (1)Marine Biological Laboratory, The Ecosystems Center, Woods Hole, United States, (2)Bermuda Institute of Ocean Sciences, St.George's, Bermuda, (3)Marine Biological Laboratory, The Ecosystems Center, Woods Hole, MA, United States

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