Jurassic- Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland)
fjV £ tb ^ fossiliferous Late Jurassic-Early Cretaceous sequence is described from the Wandel Sea Basin, eastern lv «5Sjf " North Greenland. The area was transgressed in the Middle Oxfordian and a gradually shallowing marine regime prevailed until Early Valanginian time, when conditions became...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.606.4080 2023-05-15T14:28:51+02:00 Jurassic- Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland) Eckart Håkansson The Pennsylvania State University CiteSeerX Archives application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.606.4080 http://2dgf.dk/xpdf/bull30-01-02-11-36.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.606.4080 http://2dgf.dk/xpdf/bull30-01-02-11-36.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://2dgf.dk/xpdf/bull30-01-02-11-36.pdf text ftciteseerx 2016-01-08T14:16:34Z fjV £ tb ^ fossiliferous Late Jurassic-Early Cretaceous sequence is described from the Wandel Sea Basin, eastern lv «5Sjf " North Greenland. The area was transgressed in the Middle Oxfordian and a gradually shallowing marine regime prevailed until Early Valanginian time, when conditions became limnic. Stratigraphic data based on dinoflagellate cysts, ammonites and Buchia species indicate the presence of strata of Middle and Late Oxfordian, Kimmeridgian, Middle and Late Volgian, Early and Late Ryazanian, and Early Valanginian ages. Both the dinoflagellate assemblages and the mollusc faunas show close similarity to assemblages from the Sverdrup Basin of the Canadian Arctic Archipelago, Svalbard and northern USSR. They are also linked to more southern Boreal and Sub-Boreal areas in East Greenland, England, the Russian Platform and to some extent, North America. An integrated dinoflagellate-ammonite-Buc/iia stratigra-phy shows that the Early Cretaceous dinoflagellate assemblage appeared later in the Wandel Sea Basin than further south. It is also seen that a discrete "Jurassic " dinoflagellate assemblage existed for some time in the Early Cretaceous unaffected by the general turn-over at the Jurassic-Cretaceous boundary. Dinoflagellate, ammonite and Buchia assemblages are briefly discussed and selected species figured. Text Arctic Archipelago Arctic Canadian Arctic Archipelago East Greenland Greenland North Greenland Peary Land Svalbard sverdrup basin Wandel Sea Unknown Arctic Canadian Arctic Archipelago Greenland Peary ENVELOPE(-63.867,-63.867,-65.250,-65.250) Peary Land ENVELOPE(-32.500,-32.500,82.633,82.633) Svalbard Wandel ENVELOPE(-64.000,-64.000,-65.083,-65.083) |
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Open Polar |
collection |
Unknown |
op_collection_id |
ftciteseerx |
language |
English |
description |
fjV £ tb ^ fossiliferous Late Jurassic-Early Cretaceous sequence is described from the Wandel Sea Basin, eastern lv «5Sjf " North Greenland. The area was transgressed in the Middle Oxfordian and a gradually shallowing marine regime prevailed until Early Valanginian time, when conditions became limnic. Stratigraphic data based on dinoflagellate cysts, ammonites and Buchia species indicate the presence of strata of Middle and Late Oxfordian, Kimmeridgian, Middle and Late Volgian, Early and Late Ryazanian, and Early Valanginian ages. Both the dinoflagellate assemblages and the mollusc faunas show close similarity to assemblages from the Sverdrup Basin of the Canadian Arctic Archipelago, Svalbard and northern USSR. They are also linked to more southern Boreal and Sub-Boreal areas in East Greenland, England, the Russian Platform and to some extent, North America. An integrated dinoflagellate-ammonite-Buc/iia stratigra-phy shows that the Early Cretaceous dinoflagellate assemblage appeared later in the Wandel Sea Basin than further south. It is also seen that a discrete "Jurassic " dinoflagellate assemblage existed for some time in the Early Cretaceous unaffected by the general turn-over at the Jurassic-Cretaceous boundary. Dinoflagellate, ammonite and Buchia assemblages are briefly discussed and selected species figured. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
Eckart Håkansson |
spellingShingle |
Eckart Håkansson Jurassic- Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland) |
author_facet |
Eckart Håkansson |
author_sort |
Eckart Håkansson |
title |
Jurassic- Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland) |
title_short |
Jurassic- Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland) |
title_full |
Jurassic- Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland) |
title_fullStr |
Jurassic- Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland) |
title_full_unstemmed |
Jurassic- Cretaceous boundary strata of the extreme Arctic (Peary Land, North Greenland) |
title_sort |
jurassic- cretaceous boundary strata of the extreme arctic (peary land, north greenland) |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.606.4080 http://2dgf.dk/xpdf/bull30-01-02-11-36.pdf |
long_lat |
ENVELOPE(-63.867,-63.867,-65.250,-65.250) ENVELOPE(-32.500,-32.500,82.633,82.633) ENVELOPE(-64.000,-64.000,-65.083,-65.083) |
geographic |
Arctic Canadian Arctic Archipelago Greenland Peary Peary Land Svalbard Wandel |
geographic_facet |
Arctic Canadian Arctic Archipelago Greenland Peary Peary Land Svalbard Wandel |
genre |
Arctic Archipelago Arctic Canadian Arctic Archipelago East Greenland Greenland North Greenland Peary Land Svalbard sverdrup basin Wandel Sea |
genre_facet |
Arctic Archipelago Arctic Canadian Arctic Archipelago East Greenland Greenland North Greenland Peary Land Svalbard sverdrup basin Wandel Sea |
op_source |
http://2dgf.dk/xpdf/bull30-01-02-11-36.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.606.4080 http://2dgf.dk/xpdf/bull30-01-02-11-36.pdf |
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Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766302995013697536 |