GSA 2020 Connects Online

Session No. 183
Thursday, 29 October 2020: 10:00 AM-12:00 PM

T105. Assessing the Fidelity of Geochemical Signals in Deep Time: Primary, Authigenic, and Diagenetic Signals in Proxy Data

GSA Mineralogy, Geochemistry, Petrology, and Volcanology Division; GSA Sedimentary Geology Division

 

Jiuyuan Wang, Adam Denny, Huan Cui and Benjamin J. Linzmeier, Advocates
Paper #
Start Time
10:00 AM
DIAGENETIC RESPONSE OF ARAGONITE ARCHIVES TO EXPERIMENTAL ALTERATION (Invited Presentation)
PEDERSON, Chelsea1, MAVROMATIS, Vasileios2, DIETZEL, Martin3, ROLLION-BARD, Claire4 and IMMENHAUSER, Adrian1, (1)Institute for Geology, Mineralogy and Geophysics, Ruhr-Univerisity Bochum, Universitätsstraße 150, Bochum, 44801, Germany, (2)Géosciences Environnement Toulouse, 14 av. E. Belin, Toulouse, 31400, France, (3)Institute of Applied Geosciences, Graz University of Technology, Rechbauerstr. 12, Graz, A-8010, Austria, (4)Institut de Physique du Globe de Paris, Université de Paris, 1 rue Jussieu, Paris, F-75005, France
10:15 AM
REGIONAL OR LOCAL DIAGENESIS? INTEGRATING MICROANALYTICAL TECHNIQUES TO EXTRACT BASIN-SCALE DIAGENETIC HISTORIES FROM MICRON-SCALE CEMENTS IN THE BAKKEN FORMATION
DENNY, Adam C., Pacific Northwest National Laboratory, 902 Battelle Blvd, Richland, WA 99354, ORLAND, Ian J., WiscSIMS, Department of Geoscience, University of Wisconsin, Madison, WI 53706; Wisconsin Geological and Natural History Survey, University of Wisconsin, 1215 West Dayton Street, Madison, WI 53706 and VALLEY, John W., WiscSIMS Laboratory, Department of Geoscience, University of Wisconsin–Madison, Madison, WI 53706
10:30 AM
FABRIC-SPECIFIC ISOTOPIC VARIABILITY IN LATE EDIACARAN DOLOMITES, SOUTH CHINA: ELUCIDATED BY MAGNESIUM, SULPHUR AND CLUMPED ISOTOPES (Invited Presentation)
LU, Chaojin1, KOESHIDAYATULLAH, Ardiansyah2, HUAYAO, Zou3 and SWART, Peter K.1, (1)Department of Marine Geosciences, Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149, (2)Stanford University, 450 serra mall, stanford, palo alto, CA 94305, (3)College of Geosciences, China University of Petroleum (Beijing), Beijing, 102249, China
10:45 AM
WIDESPREAD OVERPRINTING OF AUTHIGENIC NEODYMIUM ISOTOPE RECORDS: IMPLICATIONS FOR PALEOCEANOGRAPHIC RECONSTRUCTIONS
ABBOTT, April, Earth and Environmental Sciences, Macquarie University, 12 Wally's Walk, Level 3, North Ryde, NSW 2109, Australia
11:00 AM
CALCIUM ISOTOPE RATIOS SHOW SPATIAL PATTERNS OF OPEN-SYSTEM MARINE DIAGENESIS IN MALDIVES CARBONATE SEDIMENTS (Invited Presentation)
BLÄTTLER, Clara L., Department of the Geophysical Sciences, University of Chicago, Chicago, IL 60637, HIGGINS, John A., Department of Geosciences, Princeton University, Washington Road, Guyot Hall, Princeton, NJ 08544 and SWART, Peter K., Department of Marine Geosciences, Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, FL 33149
11:15 AM
CALCIUM ISOTOPE VARIABILITY ACROSS ANCIENT CANDIDATE OCEAN ACIDIFICATION EVENTS
WANG, Jiuyuan1, KITCH, Gabriella D.1, LINZMEIER, Benjamin J.2, JACOBSON, Andrew D.1, SAGEMAN, Bradley B.3 and HURTGEN, Matthew T.1, (1)Earth and Planetary Sciences, Northwestern University, 2145 Sheridan Rd, Evanston, IL 60208, (2)Department of Geoscience, University of Wisconsin-Madison, 1215 W Dayton St, Madison, WI 53706, (3)Department of Earth and Planetary Sciences, Northwestern University, Evanston, IL 60208
11:30 AM
MULTI-PROXY SEASONALITY INVESTIGATION OF THE MID-CRETACEOUS WESTERN INTERIOR SEAWAY USING OYSTER MACROFOSSILS
HOFFMAN, Jon J., Earth and Environmental Science, University of Michigan, Ann Arbor, MI 48104, JONES, Matthew M., Department of Earth and Environmental Sciences, University of Michigan, 1100 North University Avenue, Ann Arbor, MI 48109, PETERSEN, Sierra V., Earth and Environmental Sciences, University of Michigan, Ann Arbor, MI 48109 and CURLEY, Allison N., Department of Earth and Environmental Sciences, University of Michigan, 1100 N. University Ave., Ann Arbor, MI 48109
11:40 AM
LOW GRADE ARCHEAN METASEDIMENT GEOCHEMISTRY OF REDOX-SENSITIVE PROXIES FOR EARLY EARTH ATMOSPHERE-HYDROSPHERE OXYGENATION: PRELIMINARY RESULTS FROM THE CHERRY CREEK GROUP, MONTANA, USA
HOTUJEC-KANTNER, Cynthia, Department of Geological Sciences, University of Florida, 241 Williamson Hall, PO Box 112120, Gainesville, FL 32611-2120 and MUELLER, Paul A., Department of Geological Sciences, University of Florida, 241 Williamson Hall, Gainesville Florida, FL 32611
11:50 AM
MOLYBDENUM SEQUESTRATION MECHANISMS UNDER EUXINIC CONDITIONS: IMPLICATIONS FOR THE UTILITY OF MOLYBDENUM AS A PALEOREDOX PROXY
PHILLIPS, Rachel F., Geological Sciences, The University of Texas at El Paso, El Paso, TX 79968 and XU, Jie, Geological Sciences, The University of Texas at El Paso, El PAso, TX 79968
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