Skip to main content
Log in

Reconstructing the post-LGM deglacial history of Hollingsworth Glacier on Ricker Hills, Transantarctic Mountains, Antarctica

  • Original Article
  • Published:
Journal of Mountain Science Aims and scope Submit manuscript

Abstract

The Transantarctic Mountains are an important corridor between the East Antarctic Ice Sheet and the Western Ross Sea, where most current ice streams and outlet glaciers arise. We investigated Ricker Hills, the largest exposed mountainous region between Southern Victoria Land and Terra Nova Bay, and dated the glacial landforms using in-situ cosmogenic-nuclide 10Be surface exposure dating to reconstruct the paleo-glacial dynamics. The surface of the Hollingsworth glacier lowered since the middle of Marine Isotope Stage (MIS) 2 (22.1 ka); therefore, the Last Glacial Maximum (LGM) occurred before that period. Cosmogenic, geomorphic, and climatic records constrained the glacial surface slope to be between 5.4° and 6.8°. The ice was 270–320 m thicker at the LGM (MIS 2) than presently but did not override the top surface of the Benson Knob. Moreover, previous glacial periods such as the local LGM (MIS 4) or Penultimate Glacial Maximum (MIS 6) maintained thicker ice than the LGM (MIS 2). The Ross Ice Shelf opening during the mid-Holocene (∼6 ka) caused the rapid collapse of the terminal outlet glaciers and supplied notable snow accumulation upstream, which stagnated lowering. The greatest lowering and retreat occurred during the late Holocene (2.3 ∼ 0.8 ka), when elephant seal colonies thrived in the Ross Embayment.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

Download references

Acknowledgments

This research was supported by Korea Polar Research Institute (PE22090). We are very thankful to Dr. Jong Ik Lee and Jae-Hyuk Lee for their sincere help with sampling during the field trip.

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to Yeong-Bae Seong.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Rhee, HH., Seong, YB., Woo, JS. et al. Reconstructing the post-LGM deglacial history of Hollingsworth Glacier on Ricker Hills, Transantarctic Mountains, Antarctica. J. Mt. Sci. 19, 1217–1230 (2022). https://doi.org/10.1007/s11629-022-7338-1

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s11629-022-7338-1

Keywords

Navigation