PP021
Interpretation of paleoenvironmental proxies: diagnosing diagenesis and assessing proxy reliability

Session ID#: 77709

Session Description:
Information about past climate change is derived from interpretations of paleoenvironments made by many different proxies. Proxies are measurable physical, chemical, and biological materials that respond to environmental variables including temperature, salinity, redox conditions, atmospheric carbon dioxide concentrations, surface water carbon dioxide concentrations, and nutrients. All of our understanding for past climates and environments before the onset of human-based historical records comes from proxies, which makes diagnosing proxy reliability critical. Proxies are commonly altered after being incorporated into geologic archives and are subject to diagenesis, alteration, and maturation that change the original records of paleoenvironment. Our ability to derive reliable information comes from understanding the response of the proxy to environmental factors and the level of preservation in the geologic archive. We welcome contributions dedicated to exploring the identification and impact of diagenesis on the original paleoenvironmental factors recorded by proxies as well as techniques to correct for diagenetic alteration.
Co-Organized:
  • EP - Earth and Planetary Surface Processes
  • GC - Global Environmental Change
  • OS - Ocean Sciences
  • P - Planetary Sciences
Index Terms:

0419 Biomineralization [BIOGEOSCIENCES]
0454 Isotopic composition and chemistry [BIOGEOSCIENCES]
0473 Paleoclimatology and paleoceanography [BIOGEOSCIENCES]
4994 Instruments and techniques [PALEOCEANOGRAPHY]

Primary Convener:  Anastasia Yanchilina, Weizmann Institute of Science, Rehovot, Israel
Conveners:  Jordan Wostbrock, University of New Mexico Main Campus, Albuquerque, NM, United States, Vanessa Fichtner, University of Kentucky, Lexington, KY, United States and Julie Griffin, Sacramento State University, Sacramento, CA, United States
Primary Liaison:  Anastasia Yanchilina, Weizmann Institute of Science, Rehovot, Israel
 
A multi basin calibration of the Mg/Ca paleo-thermometer corrected for habitat depth and test dissolution (487845)
Figen Mekik, Grand Valley State University, Allendale, MI, United States, Jennifer E Hertzberg, University of Connecticut, Groton, CT, United States, Matthew W Schmidt, Old Dominion University, Ocean, Earth & Atmospheric Sciences, Norfolk, VA, United States and Jenna Patten, Texas A&M University College Station, Oceanography, College Station, TX, United States
 
Assessing export production on millennial timescales in the eastern equatorial Pacific Ocean (489514)
Danielle Schimmenti, Texas A&M University College Station, Geology & Geophysics, College Station, TX, United States, Franco Marcantonio, Texas A&M University, Geology and Geophysics, College Station, TX, United States, Chris T Hayes, University of Southern Mississippi, Stennis Space Center, MS, United States, Jennifer E Hertzberg, University of Connecticut, Groton, CT, United States and Matthew W Schmidt, Old Dominion University, Ocean, Earth & Atmospheric Sciences, Norfolk, VA, United States
 
The Disparity in the Abundance of C3/C4 Plants Estimated Using the Carbon Isotopic Composition of Soil Carbonates, Soil Organic Matter, Nodule Organic Matter and Bio-markers (489960)
Vijayananda Sarangi1, Prasanta Sanyal1 and Shailesh Agrawal2, (1)Indian Institute of Science Education and Research Kolkata, Kolkata, India, (2)Birbal Sahni Institute of Palaeosciences, Lucknow, India
 
A Comparison of Orbital-Resolution, late Pleistocene, Alkenone and Faunal-Based Sea-Surface Temperature Reconstructions from the Southwest Pacific (490286)
Kira T Lawrence, Lafayette College, Geology and Environmental Geosciences Department, Easton, PA, United States, Emilie A Henry, Lafayette College, Department of Geology and Environmental Geosciences, Easton, PA, United States, Marci M Robinson, USGS, Reston, VA, United States and Laura Peterson, Luther College, Environmental Studies, Decorah, IA, United States
 
Carbonate 17Oexcess as a Paleo-Hydrology Proxy (495533)
Hagit P Affek, Rolf Vieten, Shelly Bergel and Eugeni Barkan, Hebrew University of Jerusalem, The Fredy & Nadine Herrmann Institute of Earth Sciences, Jerusalem, Israel
 
Global Assessment of Organic Proxies for Quantifying Past Primary Productivity (496527)
Maria Raja, Autonomous University of Barcelona, Bellaterra, Spain and Antoni Rosell-Melé, Autonomous University of Barcelona (UAB), Institute of Environmental Science and Technology (ICTA), Bellaterra, Spain; Catalan Institution for Research and Advanced Studies (ICREA), Barcelona, Spain
 
Exploring relationships amongst δ13C, δ18O, Δ47, and δ11B estimates of calcifying fluid pH in cultured marine biogenic carbonates (499079)
Robert Nguyen Ulrich1, Joseph S Trainer2, Hayley Lauren Bricker3, Lauren C Gentile1, Christina M Pham2, Aradhna K Tripati4, Yi-Wei Liu5, Justin B Ries6 and Robert Eagle7, (1)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, (2)University of California Los Angeles, Department of Chemistry & Biochemistry, Los Angeles, CA, United States, (3)University of California, Los Angeles, Dept. of EPSS, University of California, Los Angeles, Dept. of EPSS, Los Angeles, CA, United States, (4)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Department of Atmospheric and Oceanic Sciences, Institute of the Environment and Sustainability, Institute of Geophysics and Planetary Physics, Los Angeles, CA, United States, (5)Academia Sinica Taipei, Institute of Earth Sciences, Taipei, Taiwan, (6)Northeastern University, Department of Marine and Environmental Sciences, Nahant, MA, United States, (7)University of California Los Angeles, Los Angeles, CA, United States
 
Carbon system influences on the planktic foraminiferal Mg/Ca proxy in low seawater Mg/Ca (499314)
Laura Haynes1, Baerbel Hoenisch2, Katherine Holland3, Stephen Eggins3 and Yair Rosenthal4, (1)Rutgers University, Earth, Ocean, and Atmospheric Sciences, New Brunswick, NJ, United States, (2)Lamont -Doherty Earth Observatory, Palisades, NY, United States, (3)Australian National University, Canberra, ACT, Australia, (4)Rutgers University, Marine & Coastal Sciences, New Brunswick, NJ, United States
 
What can we Learn by Comparing Bulk and Diatom-bound Nitrogen Isotopes in Downcore Profiles? (506363)
Rebecca S Robinson1, Catherine Tiley2, Colin Jones3, Roger Patrick Kelly3,4 and Matthew G Horn5, (1)University of Rhode Island, Narragansett, RI, United States, (2)University of Rhode Island, College of the Environment and Life Sciences, Kingston, RI, United States, (3)University of Rhode Island Narragansett Bay, Narragansett, RI, United States, (4)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (5)RPS-ASA, Narragansett, RI, United States
 
Sediment Provenances and Sedimentary Environment of Detrital Sediment in the South Yellow Sea since the Last Glacial Maximum (509105)
Hyojin Koo, Gyeongsang National University, Jinju, Korea, Republic of (South) and Hyen Goo Cho, Denver, CO, United States
 
New Insights Into The Rapid Transformation of the Sea into a Lake, Marmara Sea, Turkey (510204)
Shaneeza Aziz1, Cecilia M McHugh2, William B F Ryan3, Pierre Henry4, Julia Kende5, Michael Delligatti1 and Kazuyo Tachikawa6, (1)Queens College, City University of New York, USA, Flushing, NY, United States, (2)Queens College, City University of New York and Lamont Doherty Earth Observatory, USA, Flushing, NY, United States, (3)Lamont -Doherty Earth Observatory, USA, Palisades, NY, United States, (4)CEREGE, Aix-en-Provence, France, Aix-En-Provence, France, (5)Aix Marseille University, CEREGE, Aix-en-Provaence, France, Paris, France, (6)Aix Marseille Univ, CNRS, IRD, INRA, Coll France, CEREGE, France, Aix-en-Provence Cedex, France
 
Records of the Holocene paleoclimatic changes in coastal sedimentary archives of Sri Lanka (515481)
Amila Sandaruwan Ratnayake1, Premila Wijesinghe2, Madumini Senanayake2, Dilmi Wijewardhana2 and Nalin Ratnayake3, (1)Uva Wellassa University of Sri Lanka, Badulla, Sri Lanka, (2)Uva Wellassa University of Sri Lanka, Department of Science and Technology, Badulla, Sri Lanka, (3)University of Moratuwa, Department of Earth Resources Engineering, Moratuwa, Sri Lanka
 
Effect of sediment lithology upon maturation pathways of marine biogenic amorphous opal to opal-CT and microquartz chert (518484)
Ruth Yam1, Anastasia Yanchilina1, Yehoshua Kolodny2 and Aldo Shemesh1, (1)Weizmann Institute of Science, Rehovot, Israel, (2)Hebrew Univ, Jerusalem, Israel
 
Re-evaluating the diagenetic interpretation of Ba/Ca in deeper dwelling foraminifera: evidence for a primary Ba/Ca signal (519754)
Theresa Fritz-Endres, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, CA, United States and Jennifer S Fehrenbacher, Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States
 
Calibration and Application of the Topshell Gastropod Phorcus atratus as a High-resolution Paleothermometer in the Low-latitude Eastern North Atlantic (519920)
Wesley George Parker, University of Cincinnati Main Campus, Cincinnati, OH, United States, Yurena Yanes, University of Cincinnati Main Campus, Geology, Cincinnati, OH, United States and Donna M Surge, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
 
Experimental evidence for slow diffusion of trace elements in tooth enamel (528494)
Matthew J Kohn1, Amanda Drewicz1 and Richard L Hervig2, (1)Boise State University, Boise, ID, United States, (2)Arizona State University, Tempe, AZ, United States
 
Sedimentary Records of Da Qaidam Salt Lake in Qaidam Basin on the Northern Tibetan Plateau: Implications for Hydro-Climate Change and Mineral Resources Formation since LGM (528925)
Chunliang Gao1, JunQing Yu2, Xiuyun Min3, Aiying Cheng1 and Lisha Zhang1, (1)Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Xining 810008, China; Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes, Xining, China, (2)Key Laboratory of Comprehensive and Highly Efficient Utilization of Salt Lake Resources, Qinghai Institute of Salt Lakes, Chinese Academy of Sciences; Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes, Xining, China, (3)Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, Qinghai Provincial Key Laboratory of Geology and Environment of Salt Lakes, Xining, China
 
Understanding Microscale Isotopic Patterns in Pyrite Using a Two-Dimensional Reaction-Diffusion Model (531430)
Shahar Hegyi and Itay Halevy, Weizmann Institute of Science, Rehovot, Israel
 
Abyssource: an Open System of Pressure and Temperature Controlled Deep-Water Simulator for Decay and Fossilization on Experimental Paleontology (534150)
Yidi Sheng1, Wei WANG2, Xiaozheng Chen1, Ling Shu1 and Deqi WANG1, (1)Nanjing Institute of Geology and Palaeontology, Nanjing, China, (2)Nanjing Institute of Geology and Paleontology, Chinese Academy of Sciences, Key Laboratory of Economic Stratigraphy and Palaeogeography, Nanjing, China
 
Reconstructing surface water carbonate ion concentration changes in the Eastern Equatorial Pacific over the past 25 kyr using δ13C and B/Ca in planktic foraminifera (540157)
Lenzie Ward1, Matthew W Schmidt2, Jennifer E Hertzberg2, Howard J Spero3 and Franco Marcantonio4, (1)Old Dominion University, Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States, (2)Old Dominion University, Ocean, Earth & Atmospheric Sciences, Norfolk, VA, United States, (3)University California Davis, Davis, CA, United States, (4)Texas A&M University, Geology and Geophysics, College Station, TX, United States
 
Agreement of bulk sedimentary and foraminifera-bound nitrogen in the detection of a 4 million year trend in equatorial Pacific N isotopes (δ15N) (544710)
Patrick A Rafter, University of California Irvine, Irvine, CA, United States, Jesse R Farmer, LDEO Columbia University, Palisades, NY, United States, Stefano M Bernasconi, ETH Zurich, Department of Earth Sciences, Zurich, Switzerland, Gerlald H Haug, Max Planck Institute for Chemistry, Mainz, Germany, Alfredo Martinez-Garcia, ETH Zurich, Zurich, Switzerland, Ana Christina Ravelo, University of California-Santa Cruz, Santa Cruz, CA, United States, Haojia Abby Ren, Columbia University, Piermont, United States and Daniel Mikhail Sigman, Princeton University, Princeton, NJ, United States
 
Refining Seawater Sr Isotope Ratios During The Eocene Using Marine Barite (545439)
Carolyn Brady, University of California Santa Cruz, Chemistry, Santa Cruz, United States, Kimberley Kanani Mayfield, University of California Santa Cruz, Santa Cruz, CA, United States, Ana Kolevica, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany and Adina Paytan, UCSC-Inst Marine Sciences, Santa Cruz, CA, United States
 
In situ measurements on benthic foraminifera: a comparison between Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS) and Wavelength-Dispersive X-Ray Spectroscopy (WDS). (547510)
Barbara Balestra, University of California Santa Cruz, IMS, Santa Cruz, CA, United States; American University, Environmental Science Department, Washington, DC, United States, Timothy R Rose, Smithsonian Inst-Mineral Scies, Washington, DC, United States, Kirk D Knobelspiesse, NASA Goddard Space Flight Center, Greenbelt, MD, United States, Brian T Huber, National Museum of Natural History, Department of Paleobiology, Washington, DC, United States and Adina Paytan, UCSC-Inst Marine Sciences, Santa Cruz, CA, United States
 
The Importance of Ex-Situ Storage Conditions on Preserving Biomarker Signal Integrity, a Two-Year Study (549589)
Andrea Shilling, University of Southern Indiana, Evansville, IN, United States, Devon Elizabeth Colcord, Indiana University Bloomington, Bloomington, IN, United States, Cory A Portwood, Indiana State University, Terre Haute, IN, United States and Simon C Brassell, Indiana University, Bloomington, IN, United States
 
Validity of Isotope Records From Pedogenic Carbonate as Paleoclimate Proxies for the Late Carboniferous of Western Tropical Pangea (554854)
Lawrence H Tanner, Le Moyne College, Syracuse, NY, United States and Spencer G Lucas, University of New Mexico Main Campus, Albuquerque, NM, United States
 
The reliability of proxy measurement and the proxy/non-proxy distinction (560011)
Joseph Wilson, University of Colorado at Boulder, Philosophy, Boulder, CO, United States and Frank Garrett Boudinot, University of Colorado Boulder, Geological Sciences; Institute of Arctic and Alpine Research, Boulder, CO, United States
 
Spatiotemporal changes in C4 plant abundance in China since the Last Glacial Maximum and their driving factors (560921)
Haibin Wu1, Wenqi Jiang2, Qin Li1, Yating Lin3 and Yanyan Yu1, (1)Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, China, (2)Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Beijing, China, (3)Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Beijing, Comoros
 
Temperature dependence of δ44/40Ca, δ18O, Mg/Ca, Sr/Ca fractionation in calcite tests of foraminifera from a sediment trap (577169)
Surajit Mondal1, Pallavi Anand2 and Ramananda Chakrabarti1, (1)Indian Institute of Science, Bangalore, India, (2)The Open University, School of Environment, Earth and Ecosystem Sciences, Milton Keynes, United Kingdom
 
Palaeofloristics of Lower Gondwana Exposure of a part of Mahanadi Master Basin, Odisha, India: An inference on the Biostratigraphy, Palaeovegetation and Palaeoclimate (579128)
Mrutyunjaya Sahoo1, Shreerup Goswami2, Neha Aggarwal3 and S Suresh Kumar Pillai3, (1)Ravenshaw University, Cuttack, India, (2)Sambalpur University, Sambalpur, India, (3)Birbal Sahni Institute of Palaeosciences, Lucknow, India
 
Mineralogy, Genesis and Diagenesis Environment of Alkaline Lacustrine Deposits in the Lower Permian Fengcheng Formation of Mahu Sag, northwestern Junggar Basin (579389)
Wei Li, Yuanyuan Zhang and Wenbin Tang, Peking University, School of Earth and Space Sciences, Beijing, China
 
The spectrum of proxy measurement reliability: Paleothermometry as a case study (583671)
Frank Garrett Boudinot, University of Colorado Boulder, Geological Sciences; Institute of Arctic and Alpine Research, Boulder, CO, United States and Joseph Wilson, University of Colorado at Boulder, Philosophy, Boulder, CO, United States
 
Pteropods as oceanographic proxies: testing the impact of dissolution on stable isotopes and comparing modern and core-top samples (585395)
Rosie L Oakes, Academy of Natural Sciences of Drexel University, Philadelphia, PA, United States, Catherine V Davis, University of South Carolina, School of Earth, Oceans, and the Environment, Columbia, SC, United States and Jocelyn A Sessa, Academy of Natural Sciences of Drexel University, Drexel University, Department of Biodiversity Earth and Environmental Sciences, Philadelphia, PA, United States
 
Using Elemental Concentrations to Isolate Layers Likely Bearing Pelagic Foraminifera in a Hudson River Sediment Core (586249)
Desirae Thorne, Wellesley College, Wellesley, MA, United States, Dallas H Abbott, Lamont -Doherty Earth Observatory, Palisades, NY, United States, James Podwika, Rockland Community College, Suffern, NY, United States, Reinhard Kozdon, Lamont Doherty Earth Observatory, Palisades, NY, United States, Benjamin C Bostick, Lamont-Doherty Earth Observatory, Palisades, NY, United States and Karin A Block, City College of New York, New York, NY, United States
 
One Signal, Multiple Causes: Interpreting Paleo-Productivity Proxies from Lake Sediments (586316)
Laurie Grigg and Irene Magdon, Norwich University, Earth and Environmental Sciences, Northfield, VT, United States
 
Large degrees of isotope disequilibrium during precipitation-controlled degassing of CO2 from a CaCO3-H2O-CO2 solution (592239)
Hao Yan, Institute of Geochemistry, Chinese Academy of Sciences, State Key Laboratory of Environmental Geochemistry, Guiyang, China, Zaihua Liu, State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, CAS,, Guiyang, China and Hailong Sun, Chinese Academy of Sciences, The State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Guiyang, China
 
Using Atlantic Sediment Cores to Evaluate Na/Ca ratios in T. sacculifer as a Paleosalinity Proxy (593452)
Colton Steele Watkins1, Jennifer E Hertzberg1 and Matthew W Schmidt2, (1)Old Dominion University, Norfolk, VA, United States, (2)Old Dominion University, Ocean, Earth & Atmospheric Sciences, Norfolk, VA, United States
 
Interpreting triple oxygen isotope signals from geologically preserved sulfate: Insights from modern Himalayan rivers (597703)
Jordon Hemingway1, Haley Olson1, Alexandra v Turchyn2, Edward Tipper2 and David T Johnston3, (1)Harvard University, Earth and Planetary Sciences, Cambridge, MA, United States, (2)University of Cambridge, Cambridge, United Kingdom, (3)Harvard-Earth & Planet Science, Cambridge, MA, United States
 
Assessment of mean annual precipitation and pCO2 effect on C3 land plant carbon isotope fractionation (597826)
Woohee Kim and Ying Cui, Montclair State University, Earth and Environmental Studies, Montclair, NJ, United States
 
Reliable coral Sr/Ca estimates from an altered fossil coral using SIMS (598256)
Hussein R Sayani1, Kim Cobb2, Brian Monteleone3, Anne L Cohen4 and Heather R Bridges1, (1)Georgia Institute of Technology, Earth and Atmospheric Sciences, Atlanta, GA, United States, (2)Georgia Institute of Technology Main Campus, Department of Earth and Atmospheric Sciences, Atlanta, United States, (3)Department of Geology and Geophysics, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (4)Woods Hole Oceanographic Inst, Woods Hole, MA, United States
 
Oxygen isotope values of biogenic silica: Diagenesis and utility as a paleoenvironmental proxy (Invited) (599142)
Justin P Dodd1, Audrina Lehman1, Tirzah Abbott2, Jeanine Ash3, Zhifang Xiong4, Tina van de Flierdt5, Robert M Mckay6, Laura De Santis7, Denise K Kulhanek8 and IODP Expedition 374 Scientists, (1)Northern Illinois University, Geology and Environmental Geosciences, DeKalb, IL, United States, (2)Northwestern University, NUANCE - EPIC, Evanston, IL, United States, (3)Rice University, Houston, TX, United States, (4)First Institute of Oceanography, State Oceanic Administration, Qingdao, China, (5)Imperial College London, London, SW7, United Kingdom, (6)Victoria University of Wgtn, Wellington, New Zealand, (7)Ist Nazionale Oceanografia, Sgonico, Italy, (8)T, International Ocean Discovery Program, College Station, TX, United States
 
A Reassessment of the Geochemical and Isotopic Fidelity of Biogenic Carbonates (602196)
Arthur Adams1, Lukas P Baumgartner2, Torsten W Vennemann2, Damien Daval3, Sylvain Bernard4, Deyanira Graciela Cisneros Lazaro1, Alain Baronnet5, Olivier Grauby5, Jinming Guo1, Jaroslaw Stolarski6 and Anders Meibom1, (1)EPFL Swiss Federal Institute of Technology Lausanne, Lausanne, Switzerland, (2)University of Lausanne, Lausanne, Switzerland, (3)LHyGeS Laboratoire d'Hydrologie et de Géochimie de Strasbourg, Strasbourg Cedex, France, (4)IMPMC, Sorbonne Université, Paris, France, (5)Aix Marseille University, Marseille Cedex 03, France, (6)Polish Academy of Sciences, Institute of Paleobiology, Warszawa, Poland
 
Mineralogy and Geochemistry of Recent Sediments in the Chew Bahir Basin: Implications for paleoclimatic interpretations of Pleistocene Paleorecords (604841)
Daniel Gebregiorgis1, Daniel Deocampo2, Verena E Foerster3, Frank Schaebitz3, Annett Junginger4, Monika Markoswka4 and Asfawossen Asrat5, (1)Georgia State University, Department of Geosciencese, Atlanta, GA, United States, (2)Georgia State University, Department of Geosciences, Atlanta, GA, United States, (3)University of Cologne, Institute of Geography Education, Cologne, Germany, (4)University of Tübingen, Department of Geosciences, Tübingen, Germany, (5)Addis Ababa University, School of Earth Sciences, Addis Ababa, Ethiopia
 
The influence of water column and porewater trace metal bioavailability on sediment geochemistry in a Proterozoic ocean analogue (608524)
Kathryn Rico, University of Michigan, Chicago, IL, United States, Nathan D Sheldon, Univ of MI-Earth and Environmental Sciences, Ann Arbor, MI, United States and Anthony Chappaz, Central Michigan University, Institute for Great Lakes Research - Dept. of Earth and Atmospheric Sciences - Dept. of Chemistry and Biochemistry, Mount Pleasant, MI, United States
 
How much does hydrothermal scavenging influence thorium-derived sediment fluxes? (610352)
Jennifer L Middleton1, Sujoy Mukhopadhyay2, Kassandra Costa3, Frank J Pavia1,4, Gisela Winckler1,5, Jerry F McManus1,4, Marcelle d'Almeida2, Charles H Langmuir6 and Peter J Huybers6, (1)Lamont Doherty Earth Observatory, Palisades, NY, United States, (2)University of California Davis, Department of Earth and Planetary Sciences, Davis, CA, United States, (3)Woods Hole Oceanographic Institution, Department of Geology & Geophysics, Woods Hole, MA, United States, (4)Columbia University, Department of Earth and Environmental Sciences, New York, NY, United States, (5)Columbia University, Lamont-Doherty Earth Observatory, New York, NY, United States, (6)Harvard University, Department of Earth and Planetary Sciences, Cambridge, MA, United States
 
PH Induced Kinetic Effects in Clumped Isotopes Signatures from Inorganic Calcite Counteracted by Carbonic Anhydrase (620834)
Jamie Lucarelli1, Bettina Purgstaller2, Martin Dietzel3, Robert Eagle1 and Aradhna K Tripati4, (1)University of California Los Angeles, Los Angeles, CA, United States, (2)Graz University of Technology, Institute of Applied Geosciences, Graz, Austria, (3)Graz University of Technology, Graz, Austria, (4)University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Department of Atmospheric and Oceanic Sciences, Institute of the Environment and Sustainability, Institute of Geophysics and Planetary Physics, Los Angeles, CA, United States
 
Calibrating the Statistical Identification of Diagenetic Surfaces in the Geological Record Using Carbon and Oxygen Isotope Values of Carbonate Sediments from Enewetak Atoll (Invited) (620843)
Amanda M Oehlert, Rosenstiel School of Marine and Atmospheric Sciences, University of Miami, Department of Marine Geosciences, Miami, FL, United States, Peter K Swart, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Department of Marine Geosciences, Miami, FL, United States, Megan Elizabeth Smith, RSMAS University of Miami, Marine Geoscience, Miami, FL, United States and Evan Moore, University of Miami, Key Biscayne, United States
 
Determination of Foraminiferal Mg/Ca in Thin Section by LA-ICP-MS: Testing the Monterey Hypothesis (625533)
Eleana Joy Brumage, University of California Davis, Davis, CA, United States and Nathan Ross Miller, University of Texas at Austin, Austin, TX, United States
 
Tracking the impact of manganese and iron diagenesis on paleoproxy abundance and isotope composition in marine sediments (626157)
James McManus, Bigelow Laboratory for Ocean Sciences, East Boothbay, ME, United States, Silke Severmann, Rutgers University, New Brunswick, NJ, United States, Sylvie Bruggmann, Rutgers University, Department of Marine and Coastal Sciences, New Brunswick, NJ, United States and Katie Squires, Colby College, Waterville, ME, United States
 
Calibration of the carbonate clumped isotope thermometer in small samples of foraminifera and application (633776)
Aradhna Tripati, University of California, Los Angeles, Center for Diverse Leadership in Science, Institute of the Environment and Sustainability, Los Angeles, CA, United States
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