B022
Biomarkers from Source to Sink: Bridging the Transition from Empirical Relationships to Mechanistic Theory
Session ID#: 76419
Session Description:
Lipid biomarkers preserved in sediments and other geological archives are used to reconstruct a wide variety of processes through time. The molecular and isotopic signals from plant waxes, algal markers, GDGTs, and other compounds record paleoclimate and environmental conditions. Typically, biomarker interpretations are grounded in empirical correlations, but biological processes, transport, and diagenesis all influence these signals. Developing mechanistic understandings of how environmental factors influence biosynthesis, and how biomarker signals change through transport and deposition, increases the value and applications of these data.
We solicit contributions investigating lipid biomarkers 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 apply or test process-based interpretations of biomarkers to infer environmental, ecologic, or climatic conditions in the past or present. Examples might include reconstructions of temperature, hydroclimate, vegetation, the carbon cycle, pCO2 levels, atmospheric circulation, or salinity.
Index Terms:
0424 Biosignatures and proxies [BIOGEOSCIENCES]
0473 Paleoclimatology and paleoceanography [BIOGEOSCIENCES]
4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]
4924 Geochemical tracers [PALEOCEANOGRAPHY]
Primary Convener: Cindy De Jonge, ETH Swiss Federal Institute of Technology Zurich, Earth Sciences, Zurich, Switzerland
Conveners: Nemiah Ladd, University of Freiburg, Ecosystem Physiology, Freiburg im Breisgau, Germany and Zhirui Zeng, Stanford University, Stanford, CA, United States
Primary Liaison: Cindy De Jonge, ETH Swiss Federal Institute of Technology Zurich, Earth Sciences, Zurich, Switzerland
Factors controlling the biosynthesis of membrane spanning lipids in Bacteria (Invited) (488352)
Diana Sahonero1, Melvin F Siliakus1, Laura Villanueva2 and Jaap S. Sinninghe Damsté2, (1)NIOZ Royal Netherlands Institute for Sea Research, Marine Microbiology and Biogeochemistry, Den Burg, Netherlands, (2)NIOZ Royal Netherlands Institute for Sea Research, Department of Marine Microbiology and Biogeochemistry, 't Horntje, Netherlands
Biodegradation effects on the source discrimination capability of selected chemical biomarkers: implications from controlled end-member mixing experiments (494520)
Morgane Derrien, Sejong University, Department of Environment and Energy, Seoul, South Korea, Hye-Bin Choi, Hanyang University, Seoul, Korea, Republic of (South), Emilie Jardé, CNRS, Rennes, France, Kyung-Hoon Shin, Hanyang University, Department of marine science and convergence technology, Ansan, South Korea and Jin Hur, Sejong University, Seoul, Korea, Republic of (South)
Unusual Alkenone Profiles of Emiliania Huxleyi Strains Isolated from High Latitude Ocean Areas: Implications for Paleo-SST Reconstructions (499488)
Sian Liao, Brown University, Chemistry, Providence, RI, United States, Yongsong Huang, Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States and Jacob Sullivan, Brown University, Providence, RI, United States
Are sedimentary plant wax n-alkanes derived from conifers? Insights from rarely preserved early Cenozoic conifer-dominated landscapes (506902)
Kristen Schlanser1, Aaron F Diefendorf2, Christopher K West3, David R Greenwood4, James F Basinger3 and Hans Naake5, (1)University of Cincinnati Main Campus, Cincinnati, OH, United States, (2)University of Cincinnati, Cincinnati, OH, United States, (3)University of Saskatchewan, Department of Geological Sciences, Saskatoon, SK, Canada, (4)Brandon University, Dept. of Biology, Brandon, MB, Canada, (5)University of Cincinnati Main Campus, Geology, Cincinnati, OH, United States
A new sea surface temperature proxy based on bacterial 3-hydroxy fatty acids (509687)
Yi Yang1, Canfa Wang1, James A Bendle2, Xiaoguo Yu3, Chao Gao4, Xiaoxia Lv5, Xiaoyan Ruan6, Ruicheng Wang7 and Shucheng Xie1, (1)China University of Geosciences, Wuhan, China, (2)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, (3)Second Institute of Oceanography, SOA, Hangzhou, China, (4)China University of Geosciences, State Key Laboratory of Biogeology and Environmental Geology, Hubei Key Laboratory of Critical Zone Evolution, Wuhan, China, (5)China University of Geosciences, College of Marine Science and Technology, Wuhan, China, (6)Key Laboratory of Tectonics and Petroleum Resources of Ministry of Education, China University of Geosciences, Wuhan, China, (7)China University of Geosciences Wuhan, State Key Laboratory of Biogeology and Environmental Geology, Wuhan, China
Microbial biomarkers in Nasikie Engida, a hypersaline alkaline lake in southern Kenya (512304)
Evan Collins, University of Pittsburgh, Pittsburgh, PA, United States, Josef P. Werne, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, PA, United States and Gijs De Cort, University of Gent, Biology, Gent, Belgium
Microbial Community Drives BrGDGT Response to Environmental Changes in Freshwater Microcosms (518354)
Pablo Martínez-Sosa, University of Arizona, Tucson, AZ, United States, Laura K Meredith, University of Arizona, School of Natural Resources and the Environment, Tucson, AZ, United States and Jessica E Tierney, University of Arizona, Geosciences, Tucson, AZ, United States
Plant wax biomarkers informing mid-late Holocene hydroclimate variability from an inland sinkhole in the Northern Caribbean (519127)
Annie Tamalavage, Texas A&M University College Station, College Station, TX, United States, Peter J. van Hengstum, Texas A&M University at Galveston, Galveston, TX, United States, Patrick Louchouarn, Texas A&M-Galveston, Marine Sciences, Galveston, TX, United States, Jeffrey P Donnelly, WHOI, Geology and Geophysics, Woods Hole, MA, United States, Nancy A. Albury, Antiquites, Monuments, and Museums Corporation/National Museum of The Bahamas, Marsh Harbour, Bahamas and Sarah J Feakins, University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States
Fifteen years since discovery: Group I alkenones yield the first organic geochemical proxy of cold season temperatures (520416)
Yongsong Huang1, Yuan Yao2, William Michael Longo1, Susanna Theroux3, Linda A Amaral-Zettler4, James T Dillon5, William J D'Andrea6, Karen Jiaxi Wang1, Nora Richter1, Richard S Vachula5, Yinsui Zheng7, Haichao Xie8 and Jiaju Zhao2, (1)Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States, (2)Institute of Earth Environment, Chinese Academy of Sciences, State Key Laboratory of Loess and Quaternary Geology, Xi'an, China, (3)Southern California Coastal Water Research Project, Costa Mesa, CA, United States, (4)Marine Biological Lab, Woods Hole, MA, United States, (5)Brown University, Providence, RI, United States, (6)Columbia University, Palisades, NY, United States, (7)Brown University, Department of Earth, Environmental and Planetary Sciences, Providence, RI, United States, (8)Lanzhou University, MOE Key Laboratory of West China's Environmental System, College of Earth and Environmental Sciences, Lanzhou, China
Distinguishing the Sources of brGDGTs at Lake Qaupat, Baffin Island Using Intact Polar Lipids (525196)
Jonathan Raberg1, Sarah E Crump2, Gregory de Wet1, Nadia Dildar1, Gifford H Miller1 and Julio Sepulveda1, (1)University of Colorado at Boulder, Department of Geological Sciences and the Institute of Arctic and Alpine Research, Boulder, CO, United States, (2)University of Colorado at Boulder, Institute of Arctic and Alpine Research, Boulder, CO, United States
n-alkane δD signature of the Southern Alps rain shadow, New Zealand (528677)
Karl A Lang1,2, Rienk Smittenberg3 and Uwe Ring3, (1)CUNY Queens College, Flushing, NY, United States, (2)CUNY Graduate Center, New York, NY, United States, (3)Stockholm University, Stockholm, Sweden
Carbon Isotope Distributions in E. huxleyi: Identifying Complementary Signatures of Growth Conditions (Invited) (540633)
Elise Wilkes1,2, Renee B. Y. Lee3,4, Harry-Luke Oliver McClelland3,5, Rosalind E M Rickaby3 and Ann Pearson6, (1)California Institute of Technology, Division of Geological and Planetary Sciences, Pasadena, CA, United States, (2)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States, (3)University of Oxford, Oxford, United Kingdom, (4)University of Reading, Reading, United Kingdom, (5)Weizmann Institute of Science, Rehovot, Israel, (6)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States
Determining the controls on faecal stanol concentrations and ratios in tropical lake sediments (541432)
Benjamin Keenan1, Emma Fabre2, Peter Munroe Douglas1, Andrew J. Breckenridge3, Kevin Johnston4 and Jonathan Obrist-Farner5, (1)McGill University, Montreal, QC, Canada, (2)Ecole Normale Supérieure Lyon, Lyon, France, (3)University of Wisconsin - Superior, Superior, WI, United States, (4)Independent Scholar, Columbus, OH, United States, (5)Missouri University of Science and Technology, Rolla, MO, United States
Stable hydrogen isotope fractionation in archaeal glycerol tetraether lipids is largely independent from metabolism and culture conditions (545033)
Yuki Weber1, Ann Pearson1, Sebastian Kopf2, Alice Zhou3, Alec Cobban3, Felix J Elling1, Beverly K Chiu3 and William Leavitt3, (1)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (2)University of Colorado at Boulder, Geological Sciences, Boulder, CO, United States, (3)Dartmouth College, Earth Sciences, Hanover, NH, United States
Reconstructing air temperatures in Florida during North Atlantic Heinrich Events (545867)
Elliot Arnold, University of Pittsburgh, Pittsburgh, PA, United States, Josef P. Werne, University of Pittsburgh, Department of Geology and Environmental Science, Pittsburgh, PA, United States, Michael R Shields, Texas A&M University, College Station, TX, United States and Thomas S Bianchi, University of Florida, Department of Geological Sciences, Gainesville, FL, United States
Beyond UK’37: the first core top sediment calibration of non-C37 Alkenone paleotemperature Proxies (547305)
Joseph Novak, Brown University, Providence, RI, United States, Sarah Madeline McGrath, Cologne, Germany, Wolfgang Kuhnt, Christian-Albrechts-University, Institute of Geosciences, Kiel, Germany, Steven C Clemens, Brown Univ, Providence, RI, United States and Yongsong Huang, Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States
Production of Sterols and Alkenones in Typical Marine Phytoplankton under Ocean Related Global Change (563232)
Rong Bi1, Stefanie Ismar-Rebitz2, Ulrich Sommer2, Hailong Zhang1 and Meixun Zhao3, (1)Ocean University of China, Qingdao, China, (2)GEOMAR Helmholtz Center for Ocean Research, Kiel, Germany, (3)Ocean University of China, Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Qingdao, China
Lake Water Depth- influenced n-alkane Distributions and Total Organic Carbon Isotopic Signatures in Lacustrine Sediments, Mid-latitude Asia (565892)
Jiawei Jiang, University of Hong Kong, Hong Kong, Hong Kong, Bowen Meng, The University of Hong Kong, Department of Earth Sciences, Hong Kong, Hong Kong, Aifeng Zhou, Lanzhou University, Key Laboratory of Western China’s Environmental Systems (Ministry of Education), College of Earth and Environmental Sciences, Lanzhou, China, Weiguo Liu, Chinese Academy of Sciences, State Key Laboratory of Loess and Quaternary Geology, Xi'an, China, Marina Kolpakova, Nosibirsk State University, Novosibirsk, Russia, Sergey Krivonogov, Novosibirsk State University, Novosibirsk, Russia and Zhonghui Liu, The University of Hong Kong, Pok Fu Lam Road, Hong Kong
Sedimentomics: A systematic paleolimnological biomarker discovery method (589483)
Madison Bell1, Ammar A. Saleem2, Linda Kimpe3, Jennifer Korosi3, John T. Arnason2 and Jules Blais3, (1)Ottawa, Ontario, Canada, (2)University of Ottawa, Ottawa, Canada, (3)University of Ottawa, Ottawa, ON, Canada
Species mixing of alkenone-producers at high latitude marginal oceans and its potential for sea ice margin reconstructions (590196)
Karen Jiaxi Wang1, Eleanor Pereboom2 and Yongsong Huang1, (1)Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States, (2)Brown University, Providence, RI, United States
Hemisphere-scale Climate Teleconnections Controlling the Source-to-sink Sedimentary Systems into the East China Seas during the Middle and Late Holocene Stages (594707)
Ting Hao1, Yang Zhang2, James G Ogg2, Guodong Jia1 and Xianguo Li3, (1)Tongji University, Shanghai, China, (2)Purdue Univ-Earth & Atmos Scie, West Lafayette, IN, United States, (3)Key Laboratory of Marine Chemistry Theory and Technology (Ocean University of China), Ministry of Education, Qingdao, China
A machine learning approach to GDGT-based palaeothermometry (599772)
Sarah Greene1, Yvette L Eley1, William Thomson2, Ilya Mandel3,4, Kirsty Edgar1, James A Bendle1 and Tom Dunkley Jones1, (1)University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, United Kingdom, (2)University of Birmingham, School of Mathematics, Birmingham, United Kingdom, (3)Monash University, Monash Centre for Astrophysics, School of Physics and Astronomy, Melbourne, Australia, (4)University of Birmingham, Institute of Gravitational Wave Astronomy, School of Physics and Astronomy, Birmingham, United Kingdom
Leaf-wax isotope signature of neotropical savanna and tropical forest vegetation (602929)
Christoph Haggi1, Dailson Jose Bertassoli Jr2, Thomas K Akabane2, Andre O Sawakuchi2, Cristiano M Chiessi3 and Sarah J Feakins1, (1)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (2)University of São Paulo, Institute of Geosciences, São Paulo, Brazil, (3)University of Sao Paulo, School of Arts, Sciences and Humanities, São Paulo, Brazil
Species-specific leaf wax isotopic response to Sonoran Desert weather extremes (604882)
Patrick Murphy1, Tripti Bhattacharya2 and Jessica E Tierney1, (1)University of Arizona, Geosciences, Tucson, AZ, United States, (2)Syracuse University, Syracuse, NY, United States
The Influence of Oxygen Depletion on Downcore brGDGT Paleotemperature Reconstructions – Evidence Over the Holocene from Baffin Island Lake Sediment Records (611254)
Gregory de Wet1, Katelyn Eaman2, Jonathan Raberg1, Elizabeth K Thomas3, Gifford H Miller4 and Julio Sepulveda1, (1)University of Colorado at Boulder, Department of Geological Sciences and the Institute of Arctic and Alpine Research, Boulder, CO, United States, (2)University of Colorado at Boulder, INSTAAR, Boulder, United States, (3)University at Buffalo, Geology, Buffalo, NY, United States, (4)University of Colorado, INSTAAR and Geological Sciences, Boulder, United States
Photosynthetic Carbon Isotope Fractionation by Cyanobacteria (611881)
Sarah J Hurley1, Kunmanee Bubphamanee2, Karim Benzerara3, Jeffrey C Cameron4 and Boswell A Wing1, (1)University of Colorado Boulder, Boulder, CO, United States, (2)University of Colorado at Boulder, Geological Sciences, Boulder, CO, United States, (3)Institut de Minéralogie, de Physique des Matériaux et de Cosmochimie, UPMC / CNRS / MNHN / IRD, Paris, France, (4)University of Colorado at Boulder, Boulder, United States
Role of 3-Methylhopanoids in Environmental Hot Spring Anoxygenic Phototrophic Bacteria (621245)
Marisa Hayley Mayer, Stanford University, Stanford, CA, United States, Mary N. Parenteau, NASA Ames Research Center, Moffett Field, CA, United States, Linda L Jahnke, NASA Ames, Moffett Field, CA, United States, Michael Thomas Madigan, Southern Illinois University Carbondale, Microbiology, Carbondale, IL, United States and Paula V Welander, Stanford University, Earth System Science, Stanford, CA, United States
Cobalamin-dependent biosynthesis of 2-methylhopanoids in nitrite-oxidizing bacteria: Implications for the geologic record of hopanoids (624509)
Ann Pearson1, Felix J Elling1, Jordon Hemingway1, Thomas W. Evans2, Jenan J. Kharbush3, Eva Spieck4 and Roger E Summons5, (1)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (2)Massachusetts Institute of Technology, Cambridge, United States, (3)Harvard University, Earth and Planetary Sciences, Cambridge, United States, (4)University of Hamburg, Hamburg, Germany, (5)Massachusetts Institute of Technology, Earth, Atmospheric and Planetary Sciences, Cambridge, MA, United States
