The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains
The northern Prince Charles Mountains overlook the western side of the 700 km long Lambert Glacier-Amery Ice Shelf drainage system. Within these mountains, at Amery Oasis (7050'S, 6800'E) and Fisher Massif (7131'S, 6740'E), the Cenozoic glaciomarine Pagodroma Group consists of fo...
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Online Access: | https://doi.org/10.1017/S095410200100061X http://ecite.utas.edu.au/32611 |
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ftunivtasecite:oai:ecite.utas.edu.au:32611 2023-05-15T13:22:08+02:00 The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains McKelvey, BC Hambrey, MJ Harwood, DM Mabin, MCG Webb, PN Whitehead, JM 2001 https://doi.org/10.1017/S095410200100061X http://ecite.utas.edu.au/32611 en eng Antarctic Science Ltd http://dx.doi.org/10.1017/S095410200100061X McKelvey, BC and Hambrey, MJ and Harwood, DM and Mabin, MCG and Webb, PN and Whitehead, JM, The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains, Antarctic Science, 13, (4) pp. 455-468. ISSN 0954-1020 (2001) [Refereed Article] http://ecite.utas.edu.au/32611 Earth Sciences Geology Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy) Refereed Article PeerReviewed 2001 ftunivtasecite https://doi.org/10.1017/S095410200100061X 2019-12-13T21:11:48Z The northern Prince Charles Mountains overlook the western side of the 700 km long Lambert Glacier-Amery Ice Shelf drainage system. Within these mountains, at Amery Oasis (7050'S, 6800'E) and Fisher Massif (7131'S, 6740'E), the Cenozoic glaciomarine Pagodroma Group consists of four uplifted Miocene and Pliocene-early Pleistocene formations here named the Mount Johnston, Fisher Bench, Battye Glacier and Bardin Bluffs formations. These are composed of massive and stratified diamicts, boulder gravels and minor laminated sandstones, siltstones and mudstones. Each formation rests on either Precambrian metamorphic rocks, or on Permo-Triassic fluvial strata. The unconformity surfaces are parts of the walls and floors of palaeofjords. The Miocene Fisher Bench Formation exceeds 350 min thickness at Fisher Massif, where the yet older Miocene (or Oligocene) Mount Johnston Formation overlies basement rocks at up to 1400 m above sea level. Individual formations contain either Miocene diatoms, or else Pliocene-early Pleistocene diatomforam assemblages. The diamicts are interpreted as fjordal ice-proximal or ice-contact sediments, deposited seawards of tidewater glacier fronts located some 250 to 300 km inland of the present ocean margin. Each formation records an ice recession following a glacial expansion. Article in Journal/Newspaper Amery Ice Shelf Antarc* Antarctic Antarctic Science Battye Glacier Ice Sheet Ice Shelf Lambert Glacier Prince Charles Mountains Tidewater eCite UTAS (University of Tasmania) Amery ENVELOPE(-94.063,-94.063,56.565,56.565) Amery Ice Shelf ENVELOPE(71.000,71.000,-69.750,-69.750) Antarctic Bardin Bluffs ENVELOPE(68.133,68.133,-70.819,-70.819) Battye Glacier ENVELOPE(67.900,67.900,-70.867,-70.867) East Antarctic Ice Sheet Fisher Massif ENVELOPE(67.667,67.667,-72.317,-72.317) Lambert Glacier ENVELOPE(67.490,67.490,-73.065,-73.065) Mount Johnston ENVELOPE(172.783,172.783,-85.483,-85.483) Prince Charles Mountains ENVELOPE(67.246,67.246,-71.427,-71.427) Antarctic Science 13 4 455 468 |
institution |
Open Polar |
collection |
eCite UTAS (University of Tasmania) |
op_collection_id |
ftunivtasecite |
language |
English |
topic |
Earth Sciences Geology Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy) |
spellingShingle |
Earth Sciences Geology Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy) McKelvey, BC Hambrey, MJ Harwood, DM Mabin, MCG Webb, PN Whitehead, JM The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains |
topic_facet |
Earth Sciences Geology Stratigraphy (incl. Biostratigraphy and Sequence Stratigraphy) |
description |
The northern Prince Charles Mountains overlook the western side of the 700 km long Lambert Glacier-Amery Ice Shelf drainage system. Within these mountains, at Amery Oasis (7050'S, 6800'E) and Fisher Massif (7131'S, 6740'E), the Cenozoic glaciomarine Pagodroma Group consists of four uplifted Miocene and Pliocene-early Pleistocene formations here named the Mount Johnston, Fisher Bench, Battye Glacier and Bardin Bluffs formations. These are composed of massive and stratified diamicts, boulder gravels and minor laminated sandstones, siltstones and mudstones. Each formation rests on either Precambrian metamorphic rocks, or on Permo-Triassic fluvial strata. The unconformity surfaces are parts of the walls and floors of palaeofjords. The Miocene Fisher Bench Formation exceeds 350 min thickness at Fisher Massif, where the yet older Miocene (or Oligocene) Mount Johnston Formation overlies basement rocks at up to 1400 m above sea level. Individual formations contain either Miocene diatoms, or else Pliocene-early Pleistocene diatomforam assemblages. The diamicts are interpreted as fjordal ice-proximal or ice-contact sediments, deposited seawards of tidewater glacier fronts located some 250 to 300 km inland of the present ocean margin. Each formation records an ice recession following a glacial expansion. |
format |
Article in Journal/Newspaper |
author |
McKelvey, BC Hambrey, MJ Harwood, DM Mabin, MCG Webb, PN Whitehead, JM |
author_facet |
McKelvey, BC Hambrey, MJ Harwood, DM Mabin, MCG Webb, PN Whitehead, JM |
author_sort |
McKelvey, BC |
title |
The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains |
title_short |
The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains |
title_full |
The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains |
title_fullStr |
The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains |
title_full_unstemmed |
The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains |
title_sort |
pagodroma group - a cenozoic record of the east antarctic ice sheet in the northern prince charles mountains |
publisher |
Antarctic Science Ltd |
publishDate |
2001 |
url |
https://doi.org/10.1017/S095410200100061X http://ecite.utas.edu.au/32611 |
long_lat |
ENVELOPE(-94.063,-94.063,56.565,56.565) ENVELOPE(71.000,71.000,-69.750,-69.750) ENVELOPE(68.133,68.133,-70.819,-70.819) ENVELOPE(67.900,67.900,-70.867,-70.867) ENVELOPE(67.667,67.667,-72.317,-72.317) ENVELOPE(67.490,67.490,-73.065,-73.065) ENVELOPE(172.783,172.783,-85.483,-85.483) ENVELOPE(67.246,67.246,-71.427,-71.427) |
geographic |
Amery Amery Ice Shelf Antarctic Bardin Bluffs Battye Glacier East Antarctic Ice Sheet Fisher Massif Lambert Glacier Mount Johnston Prince Charles Mountains |
geographic_facet |
Amery Amery Ice Shelf Antarctic Bardin Bluffs Battye Glacier East Antarctic Ice Sheet Fisher Massif Lambert Glacier Mount Johnston Prince Charles Mountains |
genre |
Amery Ice Shelf Antarc* Antarctic Antarctic Science Battye Glacier Ice Sheet Ice Shelf Lambert Glacier Prince Charles Mountains Tidewater |
genre_facet |
Amery Ice Shelf Antarc* Antarctic Antarctic Science Battye Glacier Ice Sheet Ice Shelf Lambert Glacier Prince Charles Mountains Tidewater |
op_relation |
http://dx.doi.org/10.1017/S095410200100061X McKelvey, BC and Hambrey, MJ and Harwood, DM and Mabin, MCG and Webb, PN and Whitehead, JM, The Pagodroma Group - a Cenozoic record of the East Antarctic ice sheet in the northern Prince Charles Mountains, Antarctic Science, 13, (4) pp. 455-468. ISSN 0954-1020 (2001) [Refereed Article] http://ecite.utas.edu.au/32611 |
op_doi |
https://doi.org/10.1017/S095410200100061X |
container_title |
Antarctic Science |
container_volume |
13 |
container_issue |
4 |
container_start_page |
455 |
op_container_end_page |
468 |
_version_ |
1766363441180704768 |