V24C:
Redox from the Surface to the Core over Earth History II

Submit an Abstract to this Session



Session ID#: 35767

Session Description:
Oxidation/reduction (redox) processes control the geochemical and geophysical evolution of Earth's core, mantle, crust, oceans, and atmosphere. The high activity of oxygen at Earth’s surface is unique among rocky planets in our solar system and is a signature of life, while the reduced nature of the interior plays a key role in volcanism and the formation of minerals like diamonds and sulfides. Redox processes have also impacted Earth differentiation and mobility of elements over deep time. This session aims to bring together a wide range of disciplines and their intersections, from the deep Earth to the biosphere. We are particularly interested in studies that promote a broad view of redox systematics and interactions between surface and interior. We invite submissions from approaches including experiments, modeling, and observations of redox processes in sediments, intrusive and extrusive volcanic rocks, exhumed metamorphic terranes, and inaccessible phase assemblages of Earth’s mantle and core.
Primary Convener:  Maryjo N Brounce, California Institute of Technology, Pasadena, United States
Conveners:  Suzanne Katherine Birner, National Museum of Natural History, Smithsonian Institution, Department of Mineral Sciences, Washington, DC, United States, Alicia M Cruz-Uribe, University of Maine, School of Earth and Climate Sciences, Orono, ME, United States and Susannah Dorfman, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States
Chairs:  Susannah Dorfman, Michigan State University, Department of Earth and Environmental Sciences, East Lansing, MI, United States and Maryjo N Brounce, University of California Riverside, Riverside, United States
OSPA Liaison:  Maryjo N Brounce, California Institute of Technology, Pasadena, United States

Cross-Listed:
  • DI - Study of the Earth's Deep Interior
  • MR - Mineral and Rock Physics
  • PP - Paleoceanography and Paleoclimatology
Index Terms:

3640 Igneous petrology [MINERALOGY AND PETROLOGY]
3660 Metamorphic petrology [MINERALOGY AND PETROLOGY]
5225 Early environment of Earth [PLANETARY SCIENCES: ASTROBIOLOGY]
8439 Physics and chemistry of magma bodies [VOLCANOLOGY]

Abstracts Submitted to this Session:

Modern and ancient geochemical constraints on Proterozoic atmosphere-ocean redox evolution (Invited) (254591)
Dalton Shane Hardisty, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Tristan J Horner, Department of Marine Chemistry & Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, United States, Scott D Wankel, Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, United States, Zunli Lu, Syracuse University, Department of Earth and Environmental Sciences, Syracuse, NY, United States, Timothy Lyons, University of California Riverside, Department of Earth and Planetary Sciences, Riverside, United States and Sune Nielsen, Woods Hole Oceanographic Institution, Geology & Geophysics, Woods Hole, United States
Molybdenum isotopes reveal oxidation of Earth's continental crust during the 2.4 Ga Great Oxidation Event (210147)
Allison T Greaney1, Roberta L Rudnick2, Stephen J Romaniello3, Aleisha Johnson4, Richard M Gaschnig5 and Ariel D Anbar4, (1)University of California Santa Barbara, Department of Earth Sciences, Santa Barbara, CA, United States, (2)University of California Santa Barbara, Department of Earth Science and Earth Research Institute, Santa Barbara, CA, United States, (3)Arizona State University, School of Earth and Space Exploration, Tempe, AZ, United States, (4)Arizona State University, Tempe, AZ, United States, (5)University of Massachusetts Lowell, Lowell, MA, United States
Timing the oxidation of Earth’s crust: Evidence from big data records of manganese mineralization (295529)
Daniel R Hummer1, Joshua J Golden2, Grethe Hystad3, Robert T Downs4, Ahmed M Eleish5, Chao Liu6, Jolyon Ralph7, Shaunna M Morrison8, Michael Meyer8 and Robert M Hazen3, (1)Southern Illinois University Carbondale, Department of Geology, Carbondale, IL, United States, (2)University of Arizona, Tucson, AZ, United States, (3)Carnegie Inst, Washington, United States, (4)University of Arizona, Department of Geosciences, Tucson, AZ, United States, (5)Carnegie Inst Washington, Earth and Planets Laboratory, Washington, United States, (6)Carnegie Institution for Science, Geophysical Laboratory, Washington, DC, United States, (7)mindat.org, Surray, United Kingdom, (8)Carnegie Institution for Science Washington, Geophysical Laboratory, Washington, DC, United States
Facilitating atmosphere oxidation through mantle convection (Invited) (209327)
Kanani K M Lee, Yale University, Department of Geology & Geophysics, New Haven, United States, Tingting Gu, Center for High Pressure Science & Technology Advanced Research, Shanghai, China, Neala Creasy, Colorado School of Mines, Golden, United States, Mingming Li, University of Colorado at Boulder, Department of Physics, Boulder, CO, United States, Catherine A McCammon, University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany and Jennifer Girard, Yale University, Earth and Planetary Sciences, New Haven, United States
Tracing iron-carbon redox from surface to core (276779)
Catherine A McCammon1, Valerio Cerantola2, Elena Bykova3, Ilya Kupenko4, Maxim Bykov5, Alexander I Chumakov2, Rudolf Rüffer2 and Leonid S Dubrovinsky6, (1)University of Bayreuth, Bayreuth, Germany, (2)ESRF European Synchrotron Radiation Facility, Grenoble, France, (3)DESY Deutsches Elektronen Synchrotron, Hamburg, Germany, (4)University of Münster, Institute for Mineralogy, Münster, Germany, (5)Bayerisches Geoinstitut, Universitaet Bayreuth, Bayreuth, Germany, (6)University of Bayreuth, Bayerisches Geoinstitut, Bayreuth, Germany
Upper mantle oxygen fugacity recorded by peridotite xenoliths from oceanic islands (291201)
Fred A Davis, University of Minnesota Duluth, Duluth, United States, Kellie T Wall, USGS Cascades Volcano Observatory, Vancouver, United States and Elizabeth Cottrell, Smithsonian Institution, National Museum of Natural History, Washington, United States
The Earth’s Thorium and Uranium Abundance and Distribution (250139)
William F McDonough, Tohoku University, Advance Institute for Marine Ecosystem Change, Sendai, Japan, Prof. Meng Guo, Yale University, Department of Earth and Planetary Sciences, New Haven, United States and Scott Alan Wipperfurth, University of Maryland College Park, Department of Geology, College Park, MD, United States

See more of: Volcanology, Geochemistry and Petrology