PP023
Nutrient and Carbon Cycling in the Cenozoic
Session ID#: 249204
Session Description:
The cycling of essential nutrients, such as nitrogen, phosphorus, and iron, has played a vital role in shaping Earth’s biosphere and climate throughout the Cenozoic. Coupled with the carbon and oxygen cycles, nutrient cycling drives key feedbacks that influence productivity, ecosystem evolution, atmospheric CO2, and major environmental transitions. The Cenozoic offers a rich archive for investigating how nutrient dynamics responded to and helped regulate changes in the Earth system.This session invites contributions that explore nutrient and carbon cycling during the Cenozoic, using geochemical records, modeling approaches, or methodological advances. We welcome studies across a range of time intervals and oceanographic settings that shed light on how nutrient availability, productivity, and redox conditions influenced past interactions between the biosphere and climate. Our goal is to bring together diverse perspectives to advance understanding of nutrient cycling in Earth’s recent history and its relevance for future change.
Co-Sponsor(s):
Index Terms:
4912 Biogeochemical cycles, processes, and modeling [PALEOCEANOGRAPHY]
Primary Convener: Dr. Xingchen Tony Wang, PhD, Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, MA, United States
Convener: Ying Cui, Montclair State University, Department of Earth and Environmental Studies, Montclair, NJ, United States
Quantifying effects of high atmospheric CO2, altered bathymetry and a reduced PO4 inventory on Miocene nitrogen and oxygen dynamics (Invited) (1859471)
Christopher J Somes1, Ying Cui2, Andreas Oschlies1, Médéric St. Pierre1, Shijun Jiang3, Feng Zhu4, Jiang Zhu4, Tony Xingchen Wang5 and Ying Cui, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)Montclair State University, Department of Earth and Environmental Studies, Montclair, NJ, United States, (3)Jinan University, Guangzhou, China, (4)NSF National Center for Atmospheric Research, Boulder, United States, (5)Boston College, Boston, United States
Reconstructing Organic Carbon Burial over the Mid-to-Late Pleistocene in a Tropical Arc-Continental Collision Zone (1870059)
Fan Liu1, Francis Macdonald2, Valier Galy3, Le Li4, Morgan R Raven5, Gaojun Li6 and Gen Li1, (1)University of California, Santa Barbara, Department of Earth Science, Santa Barbara, United States, (2)University of California Berkeley, Earth and Planetary Science, Berkeley, United States, (3)Woods Hole Oceanographic Institution, Woods Hole, United States, (4)Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, (5)University of California Santa Barbara, Department of Earth Science, Santa Barbara, United States, (6)Nanjing University, Nanjing, China
Downstream Production Limits the Impact of Southern Ocean Upwelling on Atmospheric CO2 During Interglacials: Evidence from the Chilean Margin (1904829)
Gabby Mann1, Samantha Claudia Bova2, Yair Rosenthal3, Hailey Riechelson3, Julia Hagemann3 and Tyler Hayduk4, (1)San Diego State University, Department of Earth and Environmental Sciences, San Diego, United States, (2)San Diego State University, Department of Earth and Environmental Sciences, San Diego, CA, United States, (3)Rutgers University, Department of Marine and Coastal Sciences, New Brunswick, United States, (4)San Diego State University, San Diego, United States
Revisiting the Oceanic N cycle during the Holocene (1940124)
Xudong Xu1, Laura Robinson2, Shohei Hattori1, Joseph Stewart3, Tian-Yu Chen4, Qian Liu5 and Tao Li5, (1)Nanjing University, Nanjing, China, (2)University of Bristol, Bristol, United Kingdom, (3)University of Bristol, Earth Sciences, Bristol, United Kingdom, (4)Nanjing University, School of Earth Sciences and Engineering, Nanjing, China, (5)Nanjing Institute of Geology and Palaeontology, Nanjing, China
Ocean iron fertilization by sea-level enhanced mid-ocean ridge volcanism (1970954)
Tianshu Kong1, Xiaozhou Ruan2, Jesse R Farmer3, Haojia Abby Ren4, Thomas C Lee1, Ting Hsuan Lin1, Daniel Mikhail Sigman5, Yi Ming6 and Dr. Xingchen Tony Wang, PhD7, (1)Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, United States, (2)Boston University, Boston, United States, (3)University of Massachusetts Boston, Boston, MA, United States, (4)National Taiwan University, Department of Geosciences, Taipei, Taiwan, (5)Princeton University, Geosciences, Princeton, United States, (6)Boston College, Chestnut Hill, United States, (7)Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, MA, United States
Nitrogen isotopes from modern and fossil Myctophidae otoliths track changes in nutrient dynamics in the Caribbean Sea since the Miocene (Invited) (1990302)
Jessica Lueders-Dumont1, Aaron O'Dea2, Sergey Oleynik3, Brigida de Gracia2, Daniel Mikhail Sigman4 and Seth Finnegan5, (1)Boston College, Chestnut Hill, MA, United States, (2)Smithsonian Tropical Research Institute, Balboa, Panama, (3)Princeton University, Princeton, NJ, United States, (4)Princeton University, Geosciences, Princeton, United States, (5)University of California Berkeley, Integrative Biology, Berkeley, United States
The Miocene-Pliocene paleoenvironmental conditions of the IODP 395 U1562 C, Björn Drift site (2003807)
Joseph Mayala Nsingi, Montclair State University, Department of Earth and Environmental Science, Montclair, NJ, United States, Qingting Wu, Montclair State University, Department of Earth and Environmental Science, Montclair, United States and Ying Cui, Montclair State University, Department of Earth and Environmental Studies, Montclair, NJ, United States
Dynamics of the marine nitrogen cycle during the Paleocene-Eocene Thermal Maximum: Insights from an isotope-enabled Earth System Model (2004477)
Ying Cui1, Christopher J Somes2, Dr. Xingchen Tony Wang, PhD3, Shijun Jiang4, Katrin J Meissner5 and Andreas Oschlies2, (1)Montclair State University, Department of Earth and Environmental Studies, Montclair, NJ, United States, (2)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (3)Boston College, Department of Earth and Environmental Sciences, Chestnut Hill, MA, United States, (4)Hainan University, State Key Laboratory of Marine Resource Utilization in South China Sea, Haikou, China, (5)University of New South Wales, Sydney, NSW, Australia
