The Kap København Formation: stratigraphy and palaeobotany of a Plio-Pleistocene sequence in Peary Land, North Greenland
The Kap København Formation in eastern Peary Land, latitude 82°30'N, comprises essentially two facies: silt and sand. The former was deposited in sublittoral environments below wave base, and contains in situ marine faunas, while the latter was deposited in the littoral zone: in the backshore,...
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The Commission for Scientific Research in Greenland /Danish Polar Center
1990
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ftkbcopenhojs:oai:ojs.tidsskrift.dk:article/141978 2024-01-28T10:04:11+01:00 The Kap København Formation: stratigraphy and palaeobotany of a Plio-Pleistocene sequence in Peary Land, North Greenland Bennike, Ole 1990-12-07 application/pdf https://tidsskrift.dk/meddrgroenland_geosci/article/view/141978 eng eng The Commission for Scientific Research in Greenland /Danish Polar Center https://tidsskrift.dk/meddrgroenland_geosci/article/view/141978/185694 https://tidsskrift.dk/meddrgroenland_geosci/article/view/141978 Copyright (c) 2023 Copyright by the authors and the Commision for Scientific Research in Greenland / Danish Polar Center Meddelelser om Grønland. Geoscience; Vol. 23 (1990): Meddelelser om Grønland. Geoscience; 85 pp. Meddelelser om Grønland. Geoscience; Årg. 23 (1990): Meddelelser om Grønland. Geoscience; 85 pp. 1600-4590 0106-1046 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1990 ftkbcopenhojs 2024-01-03T23:58:29Z The Kap København Formation in eastern Peary Land, latitude 82°30'N, comprises essentially two facies: silt and sand. The former was deposited in sublittoral environments below wave base, and contains in situ marine faunas, while the latter was deposited in the littoral zone: in the backshore, foreshore and shoreface. Part of this facies was deposited near river mouths and contains allochthonous remains of freshwater and terrestrial organisms. Virtually all major groups of plants and animals are represented in the formation. This paper deals mainly with remains of vascular plants. Seeds, fruits and leaves of c. 60 taxa show that the area was vegetated by forest tundra growing in a humid subarctic climate. Boreal upland plants include Larix groenlandii sp. nov., an extinct species which was the dominant tree, Picea mariana, Thuja occidentalis, Betula alba, Taxus, Alnus, Myrica arctogale sp. nov., Cornus spp. and Viburnum. Tundra plants include Dryas octopetala, Oxyria digyna, Betula nana, Salix reticulata and Vaccinium uliginosum ssp. microphyllum. A number of wet land habitats existed in the area; they supported e.g. Aracites globosa comb. nov. The largest tree trunk measures 18 cm in diameter, and growth rings are extremely narrow and variable. The pollen flora, which is dominated by Betula, comprise only a minor part of arboreal pollen, indicating that trees were of minor importance in the regional vegetation. Many of the species represented in the assemblage are of modern circumpolar range, but the flora shows a marked affinity to the modern North American flora. Biostratigraphical correlations of mammals, foraminifers, molluscs and ostracodes, supplemented by palaeomagnetic work, show that the sequence is 2 to 2.5 Ma(million years) in age (Plio-Pleistocene). The vascular plant flora resembles Neogene floras from the Arctic Ocean borderland, notably that from the Beaufort Formation on Meighen Island in northernmost Canada. The flora and vegetation point to a much warmer climate at the Plio-Pleistocene ... Article in Journal/Newspaper Arctic Arctic Ocean Betula nana Dryas octopetala Greenland Kap København North Greenland Oxyria digyna Peary Land Subarctic Tundra Tidsskrift.dk (The Royal Library, Denmark) Arctic Arctic Ocean Canada Greenland Kap ENVELOPE(23.567,23.567,65.533,65.533) Kap København ENVELOPE(-22.200,-22.200,82.400,82.400) Meighen Island ENVELOPE(-99.503,-99.503,79.919,79.919) Peary ENVELOPE(-63.867,-63.867,-65.250,-65.250) Peary Land ENVELOPE(-32.500,-32.500,82.633,82.633) |
institution |
Open Polar |
collection |
Tidsskrift.dk (The Royal Library, Denmark) |
op_collection_id |
ftkbcopenhojs |
language |
English |
description |
The Kap København Formation in eastern Peary Land, latitude 82°30'N, comprises essentially two facies: silt and sand. The former was deposited in sublittoral environments below wave base, and contains in situ marine faunas, while the latter was deposited in the littoral zone: in the backshore, foreshore and shoreface. Part of this facies was deposited near river mouths and contains allochthonous remains of freshwater and terrestrial organisms. Virtually all major groups of plants and animals are represented in the formation. This paper deals mainly with remains of vascular plants. Seeds, fruits and leaves of c. 60 taxa show that the area was vegetated by forest tundra growing in a humid subarctic climate. Boreal upland plants include Larix groenlandii sp. nov., an extinct species which was the dominant tree, Picea mariana, Thuja occidentalis, Betula alba, Taxus, Alnus, Myrica arctogale sp. nov., Cornus spp. and Viburnum. Tundra plants include Dryas octopetala, Oxyria digyna, Betula nana, Salix reticulata and Vaccinium uliginosum ssp. microphyllum. A number of wet land habitats existed in the area; they supported e.g. Aracites globosa comb. nov. The largest tree trunk measures 18 cm in diameter, and growth rings are extremely narrow and variable. The pollen flora, which is dominated by Betula, comprise only a minor part of arboreal pollen, indicating that trees were of minor importance in the regional vegetation. Many of the species represented in the assemblage are of modern circumpolar range, but the flora shows a marked affinity to the modern North American flora. Biostratigraphical correlations of mammals, foraminifers, molluscs and ostracodes, supplemented by palaeomagnetic work, show that the sequence is 2 to 2.5 Ma(million years) in age (Plio-Pleistocene). The vascular plant flora resembles Neogene floras from the Arctic Ocean borderland, notably that from the Beaufort Formation on Meighen Island in northernmost Canada. The flora and vegetation point to a much warmer climate at the Plio-Pleistocene ... |
format |
Article in Journal/Newspaper |
author |
Bennike, Ole |
spellingShingle |
Bennike, Ole The Kap København Formation: stratigraphy and palaeobotany of a Plio-Pleistocene sequence in Peary Land, North Greenland |
author_facet |
Bennike, Ole |
author_sort |
Bennike, Ole |
title |
The Kap København Formation: stratigraphy and palaeobotany of a Plio-Pleistocene sequence in Peary Land, North Greenland |
title_short |
The Kap København Formation: stratigraphy and palaeobotany of a Plio-Pleistocene sequence in Peary Land, North Greenland |
title_full |
The Kap København Formation: stratigraphy and palaeobotany of a Plio-Pleistocene sequence in Peary Land, North Greenland |
title_fullStr |
The Kap København Formation: stratigraphy and palaeobotany of a Plio-Pleistocene sequence in Peary Land, North Greenland |
title_full_unstemmed |
The Kap København Formation: stratigraphy and palaeobotany of a Plio-Pleistocene sequence in Peary Land, North Greenland |
title_sort |
kap københavn formation: stratigraphy and palaeobotany of a plio-pleistocene sequence in peary land, north greenland |
publisher |
The Commission for Scientific Research in Greenland /Danish Polar Center |
publishDate |
1990 |
url |
https://tidsskrift.dk/meddrgroenland_geosci/article/view/141978 |
long_lat |
ENVELOPE(23.567,23.567,65.533,65.533) ENVELOPE(-22.200,-22.200,82.400,82.400) ENVELOPE(-99.503,-99.503,79.919,79.919) ENVELOPE(-63.867,-63.867,-65.250,-65.250) ENVELOPE(-32.500,-32.500,82.633,82.633) |
geographic |
Arctic Arctic Ocean Canada Greenland Kap Kap København Meighen Island Peary Peary Land |
geographic_facet |
Arctic Arctic Ocean Canada Greenland Kap Kap København Meighen Island Peary Peary Land |
genre |
Arctic Arctic Ocean Betula nana Dryas octopetala Greenland Kap København North Greenland Oxyria digyna Peary Land Subarctic Tundra |
genre_facet |
Arctic Arctic Ocean Betula nana Dryas octopetala Greenland Kap København North Greenland Oxyria digyna Peary Land Subarctic Tundra |
op_source |
Meddelelser om Grønland. Geoscience; Vol. 23 (1990): Meddelelser om Grønland. Geoscience; 85 pp. Meddelelser om Grønland. Geoscience; Årg. 23 (1990): Meddelelser om Grønland. Geoscience; 85 pp. 1600-4590 0106-1046 |
op_relation |
https://tidsskrift.dk/meddrgroenland_geosci/article/view/141978/185694 https://tidsskrift.dk/meddrgroenland_geosci/article/view/141978 |
op_rights |
Copyright (c) 2023 Copyright by the authors and the Commision for Scientific Research in Greenland / Danish Polar Center |
_version_ |
1789329790701928448 |