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137 / 2025-04-05 20:36:03
Dynamic Nutrient Cycling in the mid-Proterozoic Ocean: Deciphering Its Regulatory Role in Biogeochemical Feedbacks
mid-Proterozoic,Nutrient Cycling,Biogeochemical
Theme 3: Earth-Life Co-evolution Through Time > Session 3a: Precambrian Earth and Life Co-evolution
摘要待审
Xiaomei Wang / Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation
Chengshuai Yuan / Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation
Sheng-Ao Liu / China University of Geosciences, Beijing
Yuantao Ye / Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation
Tianyi Wang / Peking University
Shuichang Zhang / Research Institute of Petroleum Exploration and Development, China National Petroleum Corporation
The significance of nutrient availability in regulating the evolution of carbon cycles within Earth’s surface environment is indisputable. The mid-Proterozoic (1800 to 1000 Ma) is commonly viewed as a period characterized by long-term oligotrophic ocean, resulting from prolonged climatic, atmospheric and tectonic stability, which may have further suppressed the efficiency of biogeochemical cycling of carbon. In contrast, our comprehensive geochemical analyses of major nutrients (N and P) and bio-essential trace elements (Zn) within mid-Proterozoic successions reveal a pattern of dynamic nutrient cycling, uncovering how changes in availability (and scarcity) of these critical nutrients in ocean influenced the evolution of carbon cycle throughout the mid-Proterozoic. We further review several mid-Proterozoic volcanic events, including global large igneous province (LIP) and regional subaerial volcanism, to elucidate the pattern of volcanically modulating nutrient cycles at that time. We propose that nutrient cycling in the mid-Proterozoic ocean was not monotonic, but rather had a more complex feedback among climate, oceanic temperature, and organic carbon burial than previously thought. 
重要日期

  • 会议日期

    06月10日

    2025

    至

    06月13日

    2025

  • 04月15日 2025

    初稿截稿日期

主办单位
National Natural Science Foundation of China
Geobiology Society
National Committee of Stratigraphy of China
Ministry of Science and Technology
Geological Society of China
Paleontological Society of China
Nanjing Institute of Geology and Palaeontology, Chinese Academy of Sciences (CAS)
Institute of Vertebrate Paleontology and Paleoanthropology, CAS
International Commission on Stratigraphy
International Paleontological Association
承办单位
State Key Laboratory of Biogeology and Environmental Geology, China University of Geosciences (CUG, Wuhan)
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