THE LANDFORM OF THE NORTHERN PART OF PRINCE HARALD COAST, EAST ANTARCTICA
The bare rock areas along the eastern coast of Lutzow-Holm Bay are topographically classified into (1) strandflat, (2) hilly lands, (3) mountains, and (4) recessional moraines, which had been described as divisible into two: hilly lands and mountains (YOSHIKAWA and TOYA, 1957), or flat surface and m...
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National Institute of Polar Research
1964
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ftdoajarticles:oai:doaj.org/article:54f63f523b8e46a3b4bd139d4778e6be 2023-05-15T13:56:10+02:00 THE LANDFORM OF THE NORTHERN PART OF PRINCE HARALD COAST, EAST ANTARCTICA Takashi KOAZE 1964-02-01T00:00:00Z https://doi.org/10.15094/00007317 https://doaj.org/article/54f63f523b8e46a3b4bd139d4778e6be EN JA eng jpn National Institute of Polar Research https://doi.org/10.15094/00007317 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007317 0085-7289 2432-079X https://doaj.org/article/54f63f523b8e46a3b4bd139d4778e6be Antarctic Record, Iss 20, Pp 1741-1754 (1964) Geography (General) G1-922 article 1964 ftdoajarticles https://doi.org/10.15094/00007317 2022-12-30T23:27:08Z The bare rock areas along the eastern coast of Lutzow-Holm Bay are topographically classified into (1) strandflat, (2) hilly lands, (3) mountains, and (4) recessional moraines, which had been described as divisible into two: hilly lands and mountains (YOSHIKAWA and TOYA, 1957), or flat surface and mountains including hilly lands (TATSUMI and KIKUCHI, 1959a). (1) The marginal belt of Langhovde and Skarvsnes areas, the Ongul Islands and many other coastal islets, formerly described as flat surface are as a whole regarded as strandflat. It rarely attains to 50 metres and in most cases to less than 30 metres in height above sea level. Judging from its topographical characteristics it is considered to be a glaciated piedmont plain (Plate 1). (2) The hilly lands attaining to 50-300 metres in height and showing as a whole an accordance of summit level are regarded as roches moutonnees of a rather large scale, among which there are many cirque-like hollows, small-scale U-shaped valleys and steep-sided inlets formed by the differential erosion of ice sheet or by the erosion of ice falls and or ice streams (Plates 1 and 2). (3) The mountains, 300-500 metres high above sea level, which dominate over the surrounding hilly lands have an appearance of so-called "giant roche moutonnee" or glaciated monadnock (Plate 3). In some places, mountain flanks are almost vertically truncated by the lateral erosion of ice streams as in the northern face of Mt. Langhovde, the southwestern wall of Mt. Skjegget and the southwestern part of Breidvognippa. (4) A series of recessional moraines, 5-30 metres wide and 100-1,000 metres long, occur at a distance of 10-100 metres landward from the inner margins of the actual bare rock areas (Plate 4). At present, these moraines indicate the position of the boundary between the "dead" and the "active" glacier ice. No morainic hillock other than these and no meltwater drainage channel could thus far be found on the bare rock areas. These facts imply that the front of the former ice sheet retreated on ... Article in Journal/Newspaper Antarc* Antarctica East Antarctica Ice Sheet Prince Harald Coast Directory of Open Access Journals: DOAJ Articles East Antarctica Ongul ENVELOPE(39.533,39.533,-69.017,-69.017) Langhovde ENVELOPE(39.733,39.733,-69.217,-69.217) Skarvsnes ENVELOPE(39.667,39.667,-69.467,-69.467) Bare Rock ENVELOPE(-45.589,-45.589,-60.704,-60.704) Prince Harald Coast ENVELOPE(36.000,36.000,-69.500,-69.500) Skjegget ENVELOPE(39.583,39.583,-69.433,-69.433) |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English Japanese |
topic |
Geography (General) G1-922 |
spellingShingle |
Geography (General) G1-922 Takashi KOAZE THE LANDFORM OF THE NORTHERN PART OF PRINCE HARALD COAST, EAST ANTARCTICA |
topic_facet |
Geography (General) G1-922 |
description |
The bare rock areas along the eastern coast of Lutzow-Holm Bay are topographically classified into (1) strandflat, (2) hilly lands, (3) mountains, and (4) recessional moraines, which had been described as divisible into two: hilly lands and mountains (YOSHIKAWA and TOYA, 1957), or flat surface and mountains including hilly lands (TATSUMI and KIKUCHI, 1959a). (1) The marginal belt of Langhovde and Skarvsnes areas, the Ongul Islands and many other coastal islets, formerly described as flat surface are as a whole regarded as strandflat. It rarely attains to 50 metres and in most cases to less than 30 metres in height above sea level. Judging from its topographical characteristics it is considered to be a glaciated piedmont plain (Plate 1). (2) The hilly lands attaining to 50-300 metres in height and showing as a whole an accordance of summit level are regarded as roches moutonnees of a rather large scale, among which there are many cirque-like hollows, small-scale U-shaped valleys and steep-sided inlets formed by the differential erosion of ice sheet or by the erosion of ice falls and or ice streams (Plates 1 and 2). (3) The mountains, 300-500 metres high above sea level, which dominate over the surrounding hilly lands have an appearance of so-called "giant roche moutonnee" or glaciated monadnock (Plate 3). In some places, mountain flanks are almost vertically truncated by the lateral erosion of ice streams as in the northern face of Mt. Langhovde, the southwestern wall of Mt. Skjegget and the southwestern part of Breidvognippa. (4) A series of recessional moraines, 5-30 metres wide and 100-1,000 metres long, occur at a distance of 10-100 metres landward from the inner margins of the actual bare rock areas (Plate 4). At present, these moraines indicate the position of the boundary between the "dead" and the "active" glacier ice. No morainic hillock other than these and no meltwater drainage channel could thus far be found on the bare rock areas. These facts imply that the front of the former ice sheet retreated on ... |
format |
Article in Journal/Newspaper |
author |
Takashi KOAZE |
author_facet |
Takashi KOAZE |
author_sort |
Takashi KOAZE |
title |
THE LANDFORM OF THE NORTHERN PART OF PRINCE HARALD COAST, EAST ANTARCTICA |
title_short |
THE LANDFORM OF THE NORTHERN PART OF PRINCE HARALD COAST, EAST ANTARCTICA |
title_full |
THE LANDFORM OF THE NORTHERN PART OF PRINCE HARALD COAST, EAST ANTARCTICA |
title_fullStr |
THE LANDFORM OF THE NORTHERN PART OF PRINCE HARALD COAST, EAST ANTARCTICA |
title_full_unstemmed |
THE LANDFORM OF THE NORTHERN PART OF PRINCE HARALD COAST, EAST ANTARCTICA |
title_sort |
landform of the northern part of prince harald coast, east antarctica |
publisher |
National Institute of Polar Research |
publishDate |
1964 |
url |
https://doi.org/10.15094/00007317 https://doaj.org/article/54f63f523b8e46a3b4bd139d4778e6be |
long_lat |
ENVELOPE(39.533,39.533,-69.017,-69.017) ENVELOPE(39.733,39.733,-69.217,-69.217) ENVELOPE(39.667,39.667,-69.467,-69.467) ENVELOPE(-45.589,-45.589,-60.704,-60.704) ENVELOPE(36.000,36.000,-69.500,-69.500) ENVELOPE(39.583,39.583,-69.433,-69.433) |
geographic |
East Antarctica Ongul Langhovde Skarvsnes Bare Rock Prince Harald Coast Skjegget |
geographic_facet |
East Antarctica Ongul Langhovde Skarvsnes Bare Rock Prince Harald Coast Skjegget |
genre |
Antarc* Antarctica East Antarctica Ice Sheet Prince Harald Coast |
genre_facet |
Antarc* Antarctica East Antarctica Ice Sheet Prince Harald Coast |
op_source |
Antarctic Record, Iss 20, Pp 1741-1754 (1964) |
op_relation |
https://doi.org/10.15094/00007317 https://doaj.org/toc/0085-7289 https://doaj.org/toc/2432-079X doi:10.15094/00007317 0085-7289 2432-079X https://doaj.org/article/54f63f523b8e46a3b4bd139d4778e6be |
op_doi |
https://doi.org/10.15094/00007317 |
_version_ |
1766263535188312064 |