Contrasting Sub-ice Shelf, Subglacial and Glaciomarine Deposition at the Ross Ice Shelf Edge: Implications for the Glacial History of the Ross Sea Region, Antarctica

Public Deposited
Analytics

Downloadable Content

Download PDF
Request Version for Screen Reader
Last Modified
  • March 20, 2019
Creator
  • Boyd, Lauren Winifred Emily
    • Affiliation: College of Arts and Sciences, Department of Geological Sciences
Abstract
  • Data from cores collected at sites located in front of and beneath the Ross Ice Shelf (prior to 2000 and 2002 calving events) indicate that sub-ice shelf facies are characterized by silty, fine-grained sediment with reworked diatom species among modern assemblages. The presence of coarse material and higher total abundances in sub-ice shelf facies is attributed to proximity to the ice shelf edge or grounding line. According to this research advection and mixing by currents plays a significant role in deposition in the Ross Sea sub-ice shelf region. Facies successions and geomorphic features in the western Ross Sea indicate a slow, punctuated retreat in which the grounding line passed southeast over the NBP03-01 site by 6,600 yrs B.P. Facies from the eastern Ross Sea cores suggest cyclicity in the movement of the grounding line prior to 10,100 yrs B.P. when it was located near the NBP03-06 site.
Date of publication
DOI
Resource type
Rights statement
  • In Copyright
Advisor
  • Bartek, Louis Robert
Language
Access right
  • Open access
Date uploaded
  • October 11, 2010

Relations

Parents:

This work has no parents.

Items

Thumbnail Title Date Uploaded Visibility Actions
file details Contrasting sub-ice shelf, subglacial and glaciomarine deposition at the Ross Ice Shelf edge : implications for the glacial history of the Ross Sea Region, Antarctica 2019-04-10 Public Download