Data and Code for "Increased erosion rates following the Onset of Pleistocene periglaciation at Bear Meadows, Pennsylvania, USA"

Direct measurements of erosion response to past climate change are scarce, but mid-latitude landscapes enable studying how cold periods altered erosion processes and rates beyond glacial margins. To determine hillslope responses to periglaciation, we measured bulk geochemistry and cosmogenic 10Be and 26Al concentrations in colluvium and weathered bedrock from an 18 m core from Bear Meadows, Pennsylvania, ~100 km south of maximum glacial extent. Using core lithology, cosmogenic nuclide concentrations, and regional 10Be erosion rates, we show that the onset of 100-kyr glacial cycles at the Mid-Pleistocene Transition (1.2–0.7 Ma) instigated multiple periglacial episodes in central Appalachia and a sustained increase in erosion rates compared to the relatively warmer Neogene. Our results show the relative efficiency of periglacial versus temperate erosion processes and highlight the pervasive Pleistocene periglacial erosion signature preserved in the 10Be inventory of surface sediments in the slowly eroding landscapes of the Mid-Atlantic USA

Citation

Del Vecchio, Joanmarie; DiBiase, Roman; Corbett, Lee; Bierman, Paul; Caffee, Marc; Ivory, Sarah (2021). Data and Code for "Increased erosion rates following the Onset of Pleistocene periglaciation at Bear Meadows, Pennsylvania, USA" [Data set]. Scholarsphere. https://doi.org/10.26207/qgkn-0x07

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Work Title Data and Code for "Increased erosion rates following the Onset of Pleistocene periglaciation at Bear Meadows, Pennsylvania, USA"
Access
Open Access
Creators
  1. J. Del Vecchio
  2. R. A. DiBiase
  3. L. B. Corbett
  4. P. R. Bierman
  5. M. W. Caffee
  6. S. J. Ivory
Keyword
  1. Erosion
  2. Glaciation
  3. Geochemistry
License CC0 1.0 (Public Domain Dedication)
Work Type Dataset
Publication Date August 2021
DOI doi:10.26207/qgkn-0x07
Geographic Area
  1. Bear Meadows, Pennsylvania
Related URLs
Deposited September 03, 2021

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Work History

Version 1
published

  • Created
  • Added Creator Joanmarie Del Vecchio
  • Added Creator Roman DiBiase
  • Added Creator Sarah J Ivory
  • Added Creator Paul Robert Bierman
  • Added Creator Marc Caffee
  • Added Creator Lee Corbett
  • Updated Creator Lee Corbett
  • Updated Creator Sarah J Ivory
  • Added Del_Vecchio_README.txt
  • Added Bear_Meadows_Cosmo_Forward_Model_Scripts.zip
  • Added Bear_Meadows_Hillslope_Bulk_Geochemistry_Data.xlsx
  • Added Bear_Meadows_Hillslope_Cosmogenic_Data.xlsx
  • Updated Keyword, Geographic Area Show Changes
    Keyword
    • erosion, glaciation, geochemistry
    Geographic Area
    • Bear Meadows, Pennsylvania
  • Updated License Show Changes
    License
    • http://creativecommons.org/publicdomain/zero/1.0/
  • Published
  • Updated
  • Updated
  • Updated Keyword, Related URLs Show Changes
    Keyword
    • erosion, glaciation, geochemistry
    • Erosion, Glaciation, Geochemistry
    Related URLs
    • https://doi.org/10.1029/2021GL096739
  • Renamed Creator J. Del Vecchio Show Changes
    • Joanmarie Del Vecchio
    • J. Del Vecchio
  • Renamed Creator R. A. DiBiase Show Changes
    • Roman DiBiase
    • R. A. DiBiase
  • Renamed Creator L. B. Corbett Show Changes
    • Lee Corbett
    • L. B. Corbett
  • Renamed Creator P. R. Bierman Show Changes
    • Paul Robert Bierman
    • P. R. Bierman
  • Renamed Creator M. W. Caffee Show Changes
    • Marc Caffee
    • M. W. Caffee
  • Renamed Creator S. J. Ivory Show Changes
    • Sarah J Ivory
    • S. J. Ivory
  • Updated Work Title Show Changes
    Work Title
    • Increased erosion rates following the onset of Pleistocene periglaciation at Bear Meadows, Pennsylvania, USA
    • Data and Code for "Increased erosion rates following the Onset of Pleistocene periglaciation at Bear Meadows, Pennsylvania, USA"