Cycles of erosion and deposition during the Permo-Carboniferous glaciation in the Transantarctic Mountains
At two localities adjacent to Hatherton Glacier, Darwin Mountains, a thick glacio-lacustrine sequence underlies the main diamictite facies of the Darwin Tillite (Metschel Tillite), and at one of these locations a glacio-lacustrine sequence also conformably overlies the diamictite. These deposits rec...
Published in: | Antarctic Science |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
1994
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s095410209400012x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410209400012X |
id |
crcambridgeupr:10.1017/s095410209400012x |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s095410209400012x 2024-03-03T08:39:27+00:00 Cycles of erosion and deposition during the Permo-Carboniferous glaciation in the Transantarctic Mountains Woolfe, Ken J. 1994 http://dx.doi.org/10.1017/s095410209400012x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410209400012X en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 6, issue 1, page 93-104 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 1994 crcambridgeupr https://doi.org/10.1017/s095410209400012x 2024-02-08T08:46:24Z At two localities adjacent to Hatherton Glacier, Darwin Mountains, a thick glacio-lacustrine sequence underlies the main diamictite facies of the Darwin Tillite (Metschel Tillite), and at one of these locations a glacio-lacustrine sequence also conformably overlies the diamictite. These deposits record the initial advance and final retreat of the Gondwana ice cap. Other, pro- and periglacial phases within these sequences record several minor advances and retreats of the ice sheet. Carbonaceous sediments above and below the main diamictite phase show that vegetation was established near the ice margin, suggesting that present-day ice margin temperatures are colder than those experienced during the Permo-Carboniferous (Gondwana) glaciation. It appears that there was little or no erosion of the Devonian Taylor Group which underlies the glacial sequence. The apparent erosional nature of the contact between the Permo-Carboniferous glacial sequence and the overlying Permian coal measures is attributed to surface winnowing of unconsolidated tills and locally the units are conformable. Article in Journal/Newspaper Antarctic Science Hatherton Glacier Ice cap Ice Sheet Cambridge University Press Transantarctic Mountains Darwin Mountains ENVELOPE(156.250,156.250,-79.850,-79.850) Hatherton Glacier ENVELOPE(157.583,157.583,-79.917,-79.917) Metschel ENVELOPE(159.000,159.000,-78.250,-78.250) Antarctic Science 6 1 93 104 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography Woolfe, Ken J. Cycles of erosion and deposition during the Permo-Carboniferous glaciation in the Transantarctic Mountains |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
At two localities adjacent to Hatherton Glacier, Darwin Mountains, a thick glacio-lacustrine sequence underlies the main diamictite facies of the Darwin Tillite (Metschel Tillite), and at one of these locations a glacio-lacustrine sequence also conformably overlies the diamictite. These deposits record the initial advance and final retreat of the Gondwana ice cap. Other, pro- and periglacial phases within these sequences record several minor advances and retreats of the ice sheet. Carbonaceous sediments above and below the main diamictite phase show that vegetation was established near the ice margin, suggesting that present-day ice margin temperatures are colder than those experienced during the Permo-Carboniferous (Gondwana) glaciation. It appears that there was little or no erosion of the Devonian Taylor Group which underlies the glacial sequence. The apparent erosional nature of the contact between the Permo-Carboniferous glacial sequence and the overlying Permian coal measures is attributed to surface winnowing of unconsolidated tills and locally the units are conformable. |
format |
Article in Journal/Newspaper |
author |
Woolfe, Ken J. |
author_facet |
Woolfe, Ken J. |
author_sort |
Woolfe, Ken J. |
title |
Cycles of erosion and deposition during the Permo-Carboniferous glaciation in the Transantarctic Mountains |
title_short |
Cycles of erosion and deposition during the Permo-Carboniferous glaciation in the Transantarctic Mountains |
title_full |
Cycles of erosion and deposition during the Permo-Carboniferous glaciation in the Transantarctic Mountains |
title_fullStr |
Cycles of erosion and deposition during the Permo-Carboniferous glaciation in the Transantarctic Mountains |
title_full_unstemmed |
Cycles of erosion and deposition during the Permo-Carboniferous glaciation in the Transantarctic Mountains |
title_sort |
cycles of erosion and deposition during the permo-carboniferous glaciation in the transantarctic mountains |
publisher |
Cambridge University Press (CUP) |
publishDate |
1994 |
url |
http://dx.doi.org/10.1017/s095410209400012x https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S095410209400012X |
long_lat |
ENVELOPE(156.250,156.250,-79.850,-79.850) ENVELOPE(157.583,157.583,-79.917,-79.917) ENVELOPE(159.000,159.000,-78.250,-78.250) |
geographic |
Transantarctic Mountains Darwin Mountains Hatherton Glacier Metschel |
geographic_facet |
Transantarctic Mountains Darwin Mountains Hatherton Glacier Metschel |
genre |
Antarctic Science Hatherton Glacier Ice cap Ice Sheet |
genre_facet |
Antarctic Science Hatherton Glacier Ice cap Ice Sheet |
op_source |
Antarctic Science volume 6, issue 1, page 93-104 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s095410209400012x |
container_title |
Antarctic Science |
container_volume |
6 |
container_issue |
1 |
container_start_page |
93 |
op_container_end_page |
104 |
_version_ |
1792495003550875648 |