The palaeobotany and stratigraphic sequence of the pleistocene Klondike "muck deposits".
The Klondike District of Central Yukon Territory around Dawson City is particularly advantageous for the study of the sequence of the Pleistocene epoch because it was never glaciated and therefore has never lost its fossiliferous superficial deposits. This paper presents a pollen diagram from a Spha...
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McGill University
1952
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ftcanadathes:oai:collectionscanada.gc.ca:QMM.124040 2023-05-15T16:00:22+02:00 The palaeobotany and stratigraphic sequence of the pleistocene Klondike "muck deposits". Campbell, John Duncan, 1923- Roscoe, M. (Supervisor) Doctor of Philosophy. (Department of Botany.) 1952 application/pdf http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=124040 en eng McGill University alephsysno: 000166551 Theses scanned by McGill Library. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=124040 All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. Paleobotany -- Yukon -- Klondike River Valley Paleobotany -- Pleistocene Sediments (Geology) -- Yukon -- Klondike River Valley Klondike River Valley (Yukon) -- Gold discoveries Electronic Thesis or Dissertation 1952 ftcanadathes 2014-07-05T23:47:19Z The Klondike District of Central Yukon Territory around Dawson City is particularly advantageous for the study of the sequence of the Pleistocene epoch because it was never glaciated and therefore has never lost its fossiliferous superficial deposits. This paper presents a pollen diagram from a Sphagnum peat bed, which was the youngest deposit discovered, and pollen floras from different ages back to the Pliocene. The peat bed flora shows fairly steady climatic conditions little different from the present; the Pliocene flora shows a distinctly warmer climate; and all the others appear to show colder climates. The paper also presents a theory of correlation of geological events in the district with world-wide climatic variations: cutting of very broad creek valleys; climate warm - Earlier Tertiary - deposition of the oldest gravels; climate warm - Pliocene - deposition of oldest unweathered gravels; climate cold - Nebraskan Glaciation - rapid cutting of narrow lower creek valleys - Three Major Interglacial Ages - major interruptions of valley cutting; climate cold - Kansan and Illinoian Glaciation - deposition of thick valley - bottom muck; climate cold - Wisconsin Glaciation - erosion of valley - bottom muck; climate warmer than the present - Post-Glacial Climatic Optimum - deposition of Sphagnum peat bed; climate same as today - Recent Time [.] Thesis Dawson Yukon Theses Canada/Thèses Canada (Library and Archives Canada) Dawson City ENVELOPE(-139.433,-139.433,64.060,64.060) Klondike River ENVELOPE(-139.442,-139.442,64.054,64.054) Yukon |
institution |
Open Polar |
collection |
Theses Canada/Thèses Canada (Library and Archives Canada) |
op_collection_id |
ftcanadathes |
language |
English |
topic |
Paleobotany -- Yukon -- Klondike River Valley Paleobotany -- Pleistocene Sediments (Geology) -- Yukon -- Klondike River Valley Klondike River Valley (Yukon) -- Gold discoveries |
spellingShingle |
Paleobotany -- Yukon -- Klondike River Valley Paleobotany -- Pleistocene Sediments (Geology) -- Yukon -- Klondike River Valley Klondike River Valley (Yukon) -- Gold discoveries Campbell, John Duncan, 1923- The palaeobotany and stratigraphic sequence of the pleistocene Klondike "muck deposits". |
topic_facet |
Paleobotany -- Yukon -- Klondike River Valley Paleobotany -- Pleistocene Sediments (Geology) -- Yukon -- Klondike River Valley Klondike River Valley (Yukon) -- Gold discoveries |
description |
The Klondike District of Central Yukon Territory around Dawson City is particularly advantageous for the study of the sequence of the Pleistocene epoch because it was never glaciated and therefore has never lost its fossiliferous superficial deposits. This paper presents a pollen diagram from a Sphagnum peat bed, which was the youngest deposit discovered, and pollen floras from different ages back to the Pliocene. The peat bed flora shows fairly steady climatic conditions little different from the present; the Pliocene flora shows a distinctly warmer climate; and all the others appear to show colder climates. The paper also presents a theory of correlation of geological events in the district with world-wide climatic variations: cutting of very broad creek valleys; climate warm - Earlier Tertiary - deposition of the oldest gravels; climate warm - Pliocene - deposition of oldest unweathered gravels; climate cold - Nebraskan Glaciation - rapid cutting of narrow lower creek valleys - Three Major Interglacial Ages - major interruptions of valley cutting; climate cold - Kansan and Illinoian Glaciation - deposition of thick valley - bottom muck; climate cold - Wisconsin Glaciation - erosion of valley - bottom muck; climate warmer than the present - Post-Glacial Climatic Optimum - deposition of Sphagnum peat bed; climate same as today - Recent Time [.] |
author2 |
Roscoe, M. (Supervisor) |
format |
Thesis |
author |
Campbell, John Duncan, 1923- |
author_facet |
Campbell, John Duncan, 1923- |
author_sort |
Campbell, John Duncan, 1923- |
title |
The palaeobotany and stratigraphic sequence of the pleistocene Klondike "muck deposits". |
title_short |
The palaeobotany and stratigraphic sequence of the pleistocene Klondike "muck deposits". |
title_full |
The palaeobotany and stratigraphic sequence of the pleistocene Klondike "muck deposits". |
title_fullStr |
The palaeobotany and stratigraphic sequence of the pleistocene Klondike "muck deposits". |
title_full_unstemmed |
The palaeobotany and stratigraphic sequence of the pleistocene Klondike "muck deposits". |
title_sort |
palaeobotany and stratigraphic sequence of the pleistocene klondike "muck deposits". |
publisher |
McGill University |
publishDate |
1952 |
url |
http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=124040 |
op_coverage |
Doctor of Philosophy. (Department of Botany.) |
long_lat |
ENVELOPE(-139.433,-139.433,64.060,64.060) ENVELOPE(-139.442,-139.442,64.054,64.054) |
geographic |
Dawson City Klondike River Yukon |
geographic_facet |
Dawson City Klondike River Yukon |
genre |
Dawson Yukon |
genre_facet |
Dawson Yukon |
op_relation |
alephsysno: 000166551 Theses scanned by McGill Library. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=124040 |
op_rights |
All items in eScholarship@McGill are protected by copyright with all rights reserved unless otherwise indicated. |
_version_ |
1766396352169771008 |