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  • Geochemical characterization and material properties of coastal permafrost near Drew Point, Alaska
  • Bristol, Emily M; The University of Texas at Austin
    Connolly, Craig T; The University of Texas at Austin
    Lorenson, Thomas D; United States Geological Survey
    Richmond, Bruce M; United States Geological Survey
    Ilgen, Anastasia G; Sandia National Laboratories
    Choens, Robert Charles; Sandia National Laboratories
    Bull, Diana L; Sandia National Laboratories
    Kanevskiy, Mikhail; The University of Alaska at Fairbanks
    Iwahana, Go; The University of Alaska at Fairbanks
    Jones, Benjamin M; The University of Alaska at Fairbanks
    McClelland, James W; The University of Texas at Austin
  • 2020-11-09
  • Bristol, E., C. Connolly, T. Lorenson, B. Richmond, A. Ilgen, R. Choens, D. Bull, M. Kanevskiy, G. Iwahana, B. Jones, and J. McClelland. 2020. Geochemical characterization and material properties of coastal permafrost near Drew Point, Alaska ver 6. Environmental Data Initiative. https://doi.org/DOI_PLACE_HOLDER (Accessed 2024-12-28).

  • Permafrost cores (4.5-7.5 m long) were collected April 10th-19th, 2018, along a geomorphic gradient near Drew Point, Alaska to characterize active layer and permafrost geochemistry and material properties. Cores were collected from a young drained lake basin, an ancient drained lake basin, and primary surface that has not been reworked by thaw lake cycles. Measurements of total organic carbon (TOC) and total nitrogen (TN) content, stable carbon isotope ratios (δ13C) and radiocarbon (14C) analyses of bulk soils/sediments were conducted on 45 samples from 3 permafrost cores. Porewaters were extracted from these same core sections and used to measure salinity, dissolved organic carbon (DOC), total dissolved nitrogen (TDN), anion (Cl-, Br-, SO4 2-, NO3 -), and trace metal (Ca, Mn, Al, Ba, Sr, Si, and Fe) concentrations. Radiogenic strontium (87Sr/86Sr) was measured on a subset of porewater samples. Cores were also sampled for material property measurements such as dry bulk density, water content, and grain size fractions.

  • N: 70.887056      S: 70.878968      E: -153.706259      W: -153.890519
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  • DOI PLACE HOLDER
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