USAP-DC

[{"proj_uid": "p0000203", "west": 163.41667, "east": 163.91667, "south": -77.7, "north": -77.33333, "gid": 35351, "geometry": "0101000020E61000002EE7525C55756440397F130A116153C0", "cross_dateline": false, "bounds_geometry": "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"}]

Collaborative Research: Linking Modern Benthic Communities and Taphonomic Processes to the Stratigraphic Record of Antarctic Cores Description/Abstract This project answers a simple question: why are there so few fossils in sediment cores from Antarctica?s continental shelf? Antarctica?s benthos are as biologically rich as those of the tropics. Shell-secreting organisms should have left a trail throughout geologic time, but have not. This trail is particularly important because these organisms record regional climate in ways that are critical to interpreting the global climate record. This study uses field experiments and targeted observations of modern benthic systems to examine the biases inflicted by fossil preservation. By examining a spectrum of ice-affected habitats, this project provides paleoenvironmental insights into carbonate preservation, sedimentation rates, and burial processes; and will provide new approaches to reconstructing the Cenozoic history of Antarctica. Broader impacts include graduate and undergraduate research and education, development of undergraduate curricula to link art and science, K12 outreach, public outreach via the web, and societal relevance through improved understanding of records of global climate change. Personnel Person Role Walker, Sally Investigator Bowser, Samuel Investigator Miller, Molly Investigator Furbish, David Co-Investigator Funding Antarctic Earth Sciences Award # 0739583 Antarctic Earth Sciences Award # 0739512 Antarctic Earth Sciences Award # 0739496 AMD - DIF Record(s) NSF-ANT07-39512_1 NSF-ANT07-39583 NSF-ANT07-39496 Data Management Plan None in the Database Product Level: 1 (processed data) Datasets Repository Title (link) Format(s) Status NCBI GenBank Sequence Data None exist USAP-DC Linking Modern Benthic Communities and Taphonomic Processes to the Stratigraphic Record of Antarctic Cores None exist USAP-DC Linking Modern Benthic Communities and Taphonomic Processes to the Stratigraphic Record of Antarctic Cores CSV; Excel exist USAP-DC Nitrogen, carbon, and oxygen isotopes in the shell of the Antarctic scallop Adamussium colbecki as a proxy for sea ice cover in Antarctica. ZIP Archive exists Publications Gardner, E. E., Walker, S. E., & Gardner, L. I. (2016). Palaeoclimate, environmental factors, and bird body size: A multivariable analysis of avian fossil preservation. Earth-Science Reviews, 162, 177–197. (doi:10.1016/j.earscirev.2016.07.001) Perez-Huerta, A, Walker, S. E., Cappelli, C. (2020) In Situ Geochemical Analysis of Organics in Growth Lines of Antarctic Scallop Shells: Implications for Sclerochronology. Minerals 10, 529. (doi:10.3390/min10060529) Cronin KE, Walker SE, Bowser SS (2021) Striae in the Antarctic scallop Adamussium colbecki provide environmental insights but not reliable age increments. Polar Biol 44:729–738. https://doi.org/10.1007/s00300-021-02830-7 (doi:10.1007/s00300-021-02830-7) Bhattachan, A., Wang, L., Miller, M. F., Licht, K. J., & D’Odorico, P. (2015). Antarctica’s Dry Valleys: A potential source of soluble iron to the Southern Ocean? Geophysical Research Letters, 42(6), 1912–1918. (doi:10.1002/2015gl063419) Platforms and Instruments