V.—The Thickness of the Ice-Cap in the various Glacial Periods
In estimating the maximum load which pressed upon the northern type of Glacial (Dwyka) Conglomerate in Prieska, Cape Colony, I assumed that the calculations of Sir Wyville Thomson and Bernacci were correct, and that the greatest column of ice that could exist on the earth's surface was from 1,4...
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Language: | English |
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Cambridge University Press (CUP)
1906
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Online Access: | http://dx.doi.org/10.1017/s0016756800117819 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756800117819 |
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crcambridgeupr:10.1017/s0016756800117819 2024-03-03T08:38:56+00:00 V.—The Thickness of the Ice-Cap in the various Glacial Periods Schwarz, Ernst H. L. 1906 http://dx.doi.org/10.1017/s0016756800117819 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756800117819 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Geological Magazine volume 3, issue 3, page 120-124 ISSN 0016-7568 1469-5081 Geology journal-article 1906 crcambridgeupr https://doi.org/10.1017/s0016756800117819 2024-02-08T08:28:38Z In estimating the maximum load which pressed upon the northern type of Glacial (Dwyka) Conglomerate in Prieska, Cape Colony, I assumed that the calculations of Sir Wyville Thomson and Bernacci were correct, and that the greatest column of ice that could exist on the earth's surface was from 1,400 to 1,600 feet high. This limit, however, is by no means accepted by European glacialists, who, though they do not go as far as Dr. Croll in assuming thicknesses of 120,000 feet, yet see no reason why there could not have been ice-sheets 5,000 feet thick. The publication of Captain Scott's narrative of the voyage of the “Discovery” has given us certain definite data from the Antarctic which enable the case for the 1,600 feet maximum to be put with more confidence, and I will endeavour in the present paper to state the main lines of the argument. The question is of importance not only to us in South Africa with our two Palæozoic ice-ages, but to all geologists, as it affects the problem of the earth's equilibrium. To give a recent example, Professor Penck, in describing the Bodensee, discusses whether the weight of ice pouring down from the Alps in a sheet 3,600 feet thick may not have had some effect in producing a sinking in the earth's crust. Article in Journal/Newspaper Antarc* Antarctic Ice cap Cambridge University Press Antarctic The Antarctic Endeavour ENVELOPE(162.000,162.000,-76.550,-76.550) Penck ENVELOPE(87.717,87.717,-66.700,-66.700) Geological Magazine 3 3 120 124 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology |
spellingShingle |
Geology Schwarz, Ernst H. L. V.—The Thickness of the Ice-Cap in the various Glacial Periods |
topic_facet |
Geology |
description |
In estimating the maximum load which pressed upon the northern type of Glacial (Dwyka) Conglomerate in Prieska, Cape Colony, I assumed that the calculations of Sir Wyville Thomson and Bernacci were correct, and that the greatest column of ice that could exist on the earth's surface was from 1,400 to 1,600 feet high. This limit, however, is by no means accepted by European glacialists, who, though they do not go as far as Dr. Croll in assuming thicknesses of 120,000 feet, yet see no reason why there could not have been ice-sheets 5,000 feet thick. The publication of Captain Scott's narrative of the voyage of the “Discovery” has given us certain definite data from the Antarctic which enable the case for the 1,600 feet maximum to be put with more confidence, and I will endeavour in the present paper to state the main lines of the argument. The question is of importance not only to us in South Africa with our two Palæozoic ice-ages, but to all geologists, as it affects the problem of the earth's equilibrium. To give a recent example, Professor Penck, in describing the Bodensee, discusses whether the weight of ice pouring down from the Alps in a sheet 3,600 feet thick may not have had some effect in producing a sinking in the earth's crust. |
format |
Article in Journal/Newspaper |
author |
Schwarz, Ernst H. L. |
author_facet |
Schwarz, Ernst H. L. |
author_sort |
Schwarz, Ernst H. L. |
title |
V.—The Thickness of the Ice-Cap in the various Glacial Periods |
title_short |
V.—The Thickness of the Ice-Cap in the various Glacial Periods |
title_full |
V.—The Thickness of the Ice-Cap in the various Glacial Periods |
title_fullStr |
V.—The Thickness of the Ice-Cap in the various Glacial Periods |
title_full_unstemmed |
V.—The Thickness of the Ice-Cap in the various Glacial Periods |
title_sort |
v.—the thickness of the ice-cap in the various glacial periods |
publisher |
Cambridge University Press (CUP) |
publishDate |
1906 |
url |
http://dx.doi.org/10.1017/s0016756800117819 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756800117819 |
long_lat |
ENVELOPE(162.000,162.000,-76.550,-76.550) ENVELOPE(87.717,87.717,-66.700,-66.700) |
geographic |
Antarctic The Antarctic Endeavour Penck |
geographic_facet |
Antarctic The Antarctic Endeavour Penck |
genre |
Antarc* Antarctic Ice cap |
genre_facet |
Antarc* Antarctic Ice cap |
op_source |
Geological Magazine volume 3, issue 3, page 120-124 ISSN 0016-7568 1469-5081 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0016756800117819 |
container_title |
Geological Magazine |
container_volume |
3 |
container_issue |
3 |
container_start_page |
120 |
op_container_end_page |
124 |
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1792494340295098368 |