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Holocene glacial history and sea level changes on James Ross Island, Antarctic Peninsula

Hjort, Christian LU ; Ingólfsson, Ólafur ; Möller, Per LU orcid and Lirio, J M (1997) In Journal of Quaternary Science 12(4). p.259-273
Abstract
A reconstruction of deglaciation and associated sea-level changes on northern James Ross Island, Antarctic Peninsula, based on lithostratigraphical and geomorphological studies, shows that the initial deglaciation of presently ice-free areas occurred slightly before 7400 14C yr BP. Sea-level in connection with the deglaciation was around 30 m a.s.l. A glacier readvance in Brandy Bay, of at least 7 km, with the initial 3 km over land, reached a position off the present coast at ca. 4600 yr BP. The culmination of the advance was of short duration, and by 4300 yr BP the coastal lowlands again were ice-free. A distinct marine level at 16–18 m a.s.l. was contemporaneous with or slightly post-dates the Brandy Bay advance, thus indicating the... (More)
A reconstruction of deglaciation and associated sea-level changes on northern James Ross Island, Antarctic Peninsula, based on lithostratigraphical and geomorphological studies, shows that the initial deglaciation of presently ice-free areas occurred slightly before 7400 14C yr BP. Sea-level in connection with the deglaciation was around 30 m a.s.l. A glacier readvance in Brandy Bay, of at least 7 km, with the initial 3 km over land, reached a position off the present coast at ca. 4600 yr BP. The culmination of the advance was of short duration, and by 4300 yr BP the coastal lowlands again were ice-free. A distinct marine level at 16–18 m a.s.l. was contemporaneous with or slightly post-dates the Brandy Bay advance, thus indicating the relative sea-level around 4600–4500 yr BP. Our results from James Ross Island confirm that over large areas in this part of Antarctica the last deglaciation occurred late. (Less)
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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Quaternary Science
volume
12
issue
4
pages
259 - 273
publisher
John Wiley & Sons Inc.
external identifiers
  • scopus:0000925307
ISSN
1099-1417
DOI
10.1002/(SICI)1099-1417(199707/08)12:4<259::AID-JQS307>3.0.CO;2-6
language
English
LU publication?
yes
id
3e0a23a5-46ee-4af9-9eba-dce523830e1f
date added to LUP
2020-08-05 15:10:05
date last changed
2022-04-11 03:44:04
@article{3e0a23a5-46ee-4af9-9eba-dce523830e1f,
  abstract     = {{A reconstruction of deglaciation and associated sea-level changes on northern James Ross Island, Antarctic Peninsula, based on lithostratigraphical and geomorphological studies, shows that the initial deglaciation of presently ice-free areas occurred slightly before 7400 14C yr BP. Sea-level in connection with the deglaciation was around 30 m a.s.l. A glacier readvance in Brandy Bay, of at least 7 km, with the initial 3 km over land, reached a position off the present coast at ca. 4600 yr BP. The culmination of the advance was of short duration, and by 4300 yr BP the coastal lowlands again were ice-free. A distinct marine level at 16–18 m a.s.l. was contemporaneous with or slightly post-dates the Brandy Bay advance, thus indicating the relative sea-level around 4600–4500 yr BP. Our results from James Ross Island confirm that over large areas in this part of Antarctica the last deglaciation occurred late.}},
  author       = {{Hjort, Christian and Ingólfsson, Ólafur and Möller, Per and Lirio, J M}},
  issn         = {{1099-1417}},
  language     = {{eng}},
  number       = {{4}},
  pages        = {{259--273}},
  publisher    = {{John Wiley & Sons Inc.}},
  series       = {{Journal of Quaternary Science}},
  title        = {{Holocene glacial history and sea level changes on James Ross Island, Antarctic Peninsula}},
  url          = {{http://dx.doi.org/10.1002/(SICI)1099-1417(199707/08)12:4<259::AID-JQS307>3.0.CO;2-6}},
  doi          = {{10.1002/(SICI)1099-1417(199707/08)12:4<259::AID-JQS307>3.0.CO;2-6}},
  volume       = {{12}},
  year         = {{1997}},
}