PP007
Carbonate Sediments Through Time: processes of deposition and diagenesis
Session ID#: 251639
Session Description:
Sedimentary carbonate minerals record the history of Earth’s surface conditions and the evolution of various biogeochemical cycles. Numerous chemical, biological, and physical processes are involved in the formation, transportation, and diagenetic alterations of carbonate minerals. This session focuses on process-based approaches to understanding the genesis and diagenesis of carbonate sediments and rocks over geologic time, including, but not limited to, new developments in carbonate sedimentology, biogeochemistry, petrology, stratigraphy, biomineralization, and microbial ecology. We welcome contributions applying field, petrographic, geochemical, experimental, or modeling approaches to interpret the mechanisms, processes, conditions, and environments of deposition and diagenesis of both modern sediments and ancient carbonate rocks. We specifically encourage studies that aim at developing carbonate-based proxies for environmental parameters, investigating carbonates’ roles in natural and geo-engineered carbon sequestration, and studying modern systems to guide interpretations of the rock record and paleoclimate.
Co-Sponsor(s):
Index Terms:
0419 Biomineralization [BIOGEOSCIENCES]
0428 Carbon cycling [BIOGEOSCIENCES]
1050 Marine geochemistry [GEOCHEMISTRY]
1051 Sedimentary geochemistry [GEOCHEMISTRY]
Primary Convener: Mingfei Chen, Lawrence Berkeley National Laboratory, Berkeley, CA, United States
Conveners: Mohammed Hashim, University of Southern California, Department of Earth Sciences, Los Angeles, United States, Miquela Ingalls, Pennsylvania State University, Department of Geosciences, University Park, United States and Julia Wilcots, Princeton University, Princeton, NJ, United States
Student/Early Career Convener: Julia Wilcots, Princeton University, Princeton, NJ, United States
Carbonates through Time, Through Time: A Database of Published Carbonate U-Pb Ages from the Last Decade and Beyond (Invited) (1845546)
Marjorie Cantine, Massachusetts Institute of Technology, Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States, Sabrina Kainz, University of Washington Seattle Campus, Earth and Space Sciences, Seattle, United States, Shannon Jones, University of Washington, Seattle, United States and Axel Gerdes, Goethe University Frankfurt, Frankfurt Isotope and Element Research Center (FIERCE), Frankfurt am Main, Germany
Mg isotopes revealing dolomitization during dynamic redox conditions above the Great Unconformity (1884054)
Xubin Wang, Syracuse University, Syracuse, NY, United States, Lin Dong, Peking University, School of Earth and Space Sciences, Beijing, China, Chenqing Li, Peking University, Beijing, China and Zunli Lu, Syracuse University, Department of Earth and Environmental Sciences, Syracuse, NY, United States
Spatially Resolved Deconvolution of Texture Formation and Initial Diagenetic Mechanisms in Carbonate Dendrolitic Microbialites (Invited) (1884733)
Victoria Cassady1, Victoria A Petryshyn2, Joan M Bernhard3, Aaron Celestian4, Mengshi Liu5, Ariel McCormack6, Kelsey Perez7, William Berelson8, David J Bottjer9 and Frank A Corsetti5, (1)University of Southern California, Los Angeles, CA, United States, (2)University of Southern California, Los Angeles, United States, (3)WHOI, Woods Hole, MA, United States, (4)Los Angeles Natural History Museum, Los Angeles, United States, (5)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States, (6)University of Southern California, Biological Sciences, Los Angeles, United States, (7)University of Southern California, Environmental Studies Program, Los Angeles, United States, (8)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (9)Univ Southern California, Department of Earth Sciences, Los Angeles, United States
Time-Capsule Concretions: Decoding the Diagenetic History of Carbonate Concretions in the Rohtasgarh Limestone, Vindhyan Supergroup, Sonbhadra District, India. (1910026)
Divya Singh1, Mukund Sharma2, S.K. Pandey1, Bindhyachal Pandey3 and Nageshwar Dubey4, (1)Birbal Sahni Institute of Palaeosciences, Lucknow, India, (2)Integral Institute of Agricultural Science and Technology, Integral University, Lucknow, India, (3)Banaras Hindu University, Varanasi, India, (4)Addis Ababa Science and Technology University, Addis Ababa, Ethiopia
Revisiting the Paleogene Carbonate Paradigm in the Offshore Indus Basin, Pakistan: Biostratigraphic Framework, Facies Architecture, and Depositional Evolution (1936677)
Hafiz Ahmed Raza Hassan1, Keyu Liu2, Giovanni Coletti3, Jianliang Liu1, Lauben Twinomujuni1 and Ali Mohamed4, (1)China University of Petroleum (East China), Qingdao, China, (2)China University of Petroleum (East China), School of Geosciences, Qingdao, China, (3)University of Milan - Bicocca, Milan, Italy, (4)University of Texas at Austin, Hildebrand Department of Petroleum and Geosystems Engineering, Austin, TX, United States
Triple Strontium Isotope Variations Reveal Environmental Changes in the Early Tonian (1943217)
Haotian Guo1, Yafang Song1, Jiuyuan Wang2, Fang Huang1 and Jihua Hao1, (1)University of Science and Technology of China, School of Earth and Space Sciences, Hefei, China, (2)Peking University, School of Earth and Space Science, Beijing, China
Petrographic and Isotopic Analysis of the late Cambrian Steptoean Positive Carbon Isotope Excursion (SPICE): Testing Facies as an Alternative to Global Carbon Cycling (1947497)
Sarah Brown1, Matthew Saltzman1, Elizabeth M Griffith1, Chelsea Pederson2 and Jessica Leigh Oster3, (1)The Ohio State University, School of Earth Sciences, Columbus, United States, (2)The University of Southern Mississippi, School of Ocean Science and Engineering, Stennis Space Center, United States, (3)Vanderbilt University, Earth and Environmental Sciences, Nashville, TN, United States
