A Two-Million-Year-Old Insect Fauna from North Greenland Indicating Boreal Conditions at the Plio-Pleistocene Boundary
The Kap Kopenhavn Formation in NE Peary Land, Greenland, is assumed to be 2.0-2.5 Ma old, i.e., from the Plio-Pleistocene transition. Layers of organic detritus contain a wealth of well-preserved remains of land and fresh water organisms, almost all extant species. In striking contrast to the presen...
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ftdtic:ADP007343 2023-05-15T14:53:33+02:00 A Two-Million-Year-Old Insect Fauna from North Greenland Indicating Boreal Conditions at the Plio-Pleistocene Boundary Bocher, J. COPENHAGEN UNIV (DENMARK) 1992-03 text/html http://www.dtic.mil/docs/citations/ADP007343 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007343 en eng http://www.dtic.mil/docs/citations/ADP007343 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Geography Snow Ice and Permafrost Biology *CLIMATE *FRESH WATER *GREENLAND ARCTIC OCEAN COMMUNITIES CONTRAST FORESTS FOSSILS INSECTS LAYERS OCEANS TRANSITIONS TUNDRA VISION WATER SYMPOSIA AQUATIC ORGANISMS Component Reports *Insect fauna *Boreal conditions *Plio-Pleistocene boundary Organic detritus Paleobotany Paleoentomology Text 1992 ftdtic 2016-02-19T17:39:52Z The Kap Kopenhavn Formation in NE Peary Land, Greenland, is assumed to be 2.0-2.5 Ma old, i.e., from the Plio-Pleistocene transition. Layers of organic detritus contain a wealth of well-preserved remains of land and fresh water organisms, almost all extant species. In striking contrast to the present harsh, high arctic conditions at Kap Kopenhavn, the fossil plants and insects show that immediately prior to the Quaternary glaciations a subarctic climate existed in this northernmost land on earth. A rich forest-tundra bordered the Arctic Ocean, and the plant communities were populated with a diverse, predominantly boreal insect fauna. These discoveries may have significance for the current discussion of the greenhouse effect. What we find imbedded in the sands at Kap Kopenhavn may present a vision of a future climatic development. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 1990. Volume 2', AD-A253 028, p582-584. See also Volume 1, AD-A253 027. Text Arctic Arctic Ocean Greenland Ice North Greenland Peary Land permafrost Subarctic Tundra Alaska Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean Fairbanks Greenland Peary ENVELOPE(-63.867,-63.867,-65.250,-65.250) Kap ENVELOPE(23.567,23.567,65.533,65.533) Peary Land ENVELOPE(-32.500,-32.500,82.633,82.633) |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Geography Snow Ice and Permafrost Biology *CLIMATE *FRESH WATER *GREENLAND ARCTIC OCEAN COMMUNITIES CONTRAST FORESTS FOSSILS INSECTS LAYERS OCEANS TRANSITIONS TUNDRA VISION WATER SYMPOSIA AQUATIC ORGANISMS Component Reports *Insect fauna *Boreal conditions *Plio-Pleistocene boundary Organic detritus Paleobotany Paleoentomology |
spellingShingle |
Geography Snow Ice and Permafrost Biology *CLIMATE *FRESH WATER *GREENLAND ARCTIC OCEAN COMMUNITIES CONTRAST FORESTS FOSSILS INSECTS LAYERS OCEANS TRANSITIONS TUNDRA VISION WATER SYMPOSIA AQUATIC ORGANISMS Component Reports *Insect fauna *Boreal conditions *Plio-Pleistocene boundary Organic detritus Paleobotany Paleoentomology Bocher, J. A Two-Million-Year-Old Insect Fauna from North Greenland Indicating Boreal Conditions at the Plio-Pleistocene Boundary |
topic_facet |
Geography Snow Ice and Permafrost Biology *CLIMATE *FRESH WATER *GREENLAND ARCTIC OCEAN COMMUNITIES CONTRAST FORESTS FOSSILS INSECTS LAYERS OCEANS TRANSITIONS TUNDRA VISION WATER SYMPOSIA AQUATIC ORGANISMS Component Reports *Insect fauna *Boreal conditions *Plio-Pleistocene boundary Organic detritus Paleobotany Paleoentomology |
description |
The Kap Kopenhavn Formation in NE Peary Land, Greenland, is assumed to be 2.0-2.5 Ma old, i.e., from the Plio-Pleistocene transition. Layers of organic detritus contain a wealth of well-preserved remains of land and fresh water organisms, almost all extant species. In striking contrast to the present harsh, high arctic conditions at Kap Kopenhavn, the fossil plants and insects show that immediately prior to the Quaternary glaciations a subarctic climate existed in this northernmost land on earth. A rich forest-tundra bordered the Arctic Ocean, and the plant communities were populated with a diverse, predominantly boreal insect fauna. These discoveries may have significance for the current discussion of the greenhouse effect. What we find imbedded in the sands at Kap Kopenhavn may present a vision of a future climatic development. This article is from 'Proceedings of the International Conference on the Role of the Polar Regions in Global Change Held in Fairbanks, Alaska on 11-15 June 1990. Volume 2', AD-A253 028, p582-584. See also Volume 1, AD-A253 027. |
author2 |
COPENHAGEN UNIV (DENMARK) |
format |
Text |
author |
Bocher, J. |
author_facet |
Bocher, J. |
author_sort |
Bocher, J. |
title |
A Two-Million-Year-Old Insect Fauna from North Greenland Indicating Boreal Conditions at the Plio-Pleistocene Boundary |
title_short |
A Two-Million-Year-Old Insect Fauna from North Greenland Indicating Boreal Conditions at the Plio-Pleistocene Boundary |
title_full |
A Two-Million-Year-Old Insect Fauna from North Greenland Indicating Boreal Conditions at the Plio-Pleistocene Boundary |
title_fullStr |
A Two-Million-Year-Old Insect Fauna from North Greenland Indicating Boreal Conditions at the Plio-Pleistocene Boundary |
title_full_unstemmed |
A Two-Million-Year-Old Insect Fauna from North Greenland Indicating Boreal Conditions at the Plio-Pleistocene Boundary |
title_sort |
two-million-year-old insect fauna from north greenland indicating boreal conditions at the plio-pleistocene boundary |
publishDate |
1992 |
url |
http://www.dtic.mil/docs/citations/ADP007343 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADP007343 |
long_lat |
ENVELOPE(-63.867,-63.867,-65.250,-65.250) ENVELOPE(23.567,23.567,65.533,65.533) ENVELOPE(-32.500,-32.500,82.633,82.633) |
geographic |
Arctic Arctic Ocean Fairbanks Greenland Peary Kap Peary Land |
geographic_facet |
Arctic Arctic Ocean Fairbanks Greenland Peary Kap Peary Land |
genre |
Arctic Arctic Ocean Greenland Ice North Greenland Peary Land permafrost Subarctic Tundra Alaska |
genre_facet |
Arctic Arctic Ocean Greenland Ice North Greenland Peary Land permafrost Subarctic Tundra Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADP007343 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766325138063622144 |