Palynological Investigations of Miocene Deposits on the New Siberian Archipelago (U.S.S.R.)

New paleobotanical data (mainly palynological) are reported from Miocene beds of the New Siberian Islands. The palynoflora has a number of distinctive features: the presence of typical hypoarctic forms, the high content taxa representing dark coniferous assemblages and the considerable proportion of...

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Published in:ARCTIC
Main Author: Zyryanov, Eugene V.
Format: Article in Journal/Newspaper
Language:English
Published: The Arctic Institute of North America 1992
Subjects:
Online Access:https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64458
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author Zyryanov, Eugene V.
author_facet Zyryanov, Eugene V.
author_sort Zyryanov, Eugene V.
collection Unknown
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description New paleobotanical data (mainly palynological) are reported from Miocene beds of the New Siberian Islands. The palynoflora has a number of distinctive features: the presence of typical hypoarctic forms, the high content taxa representing dark coniferous assemblages and the considerable proportion of small-leaved forms. Floristic comparison with the paleofloras or the Beaufort Formation in arctic Canada allows interpretation of the evolution of the Arctic as a landscape region during Miocene-Pliocene time. The paper is a preliminary analysis of the mechanisms of arctic florogenesis. The model of an "adaptive landscape" is considered in relation to the active eustatic drying of polar shelves.Key words: palynology, U.S.S.R., New Siberian Islands, Miocene, Arctic, florogenesis RÉSUMÉ. On rapporte de nouvelles données paléobotaniques (principalement palynologiques) venant de couches datant du miocène situées dans l’archipel de la Nouvelle-Sibérie. La palynoflore possède un nombre de caractéristiques particulières, parmi lesquelles, la présence de formes hypoarctiques typiques, la grande quantité de taxons représentant des assemblages de conifires sombres, ainsi qu’une collection considérable de formes à petites feuilles. Une comparaison floristique avec les paléoflores de la formation de Beaufort dans l’Arctique canadien permet d’interpréter l’évolution de l’Arctique en tant que zone peuplée d’espèces végetales durant le miocène et le pliocène. Cet article est une analyse préliminaire des mécanismes de la genèse de la flore arctique. Le modèle d’un paysage adaptatif est envisagé en rapport avec l’assèchement eustatique actif des plates-formes polaires.Mots clés: palynologie, U.R.S.S, archipel de la Nouvelle-Sibérie, miocène, Arctique, genèse de la flore
format Article in Journal/Newspaper
genre Arctic
Arctic
Arctique*
New Siberian Islands
genre_facet Arctic
Arctic
Arctique*
New Siberian Islands
geographic Arctic
Canada
New Siberian Islands
Ostrova
geographic_facet Arctic
Canada
New Siberian Islands
Ostrova
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op_source ARCTIC; Vol. 45 No. 3 (1992): September: 211–326; 285-294
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spelling ftunivcalgaryojs:oai:journalhosting.ucalgary.ca:article/64458 2025-06-15T14:14:55+00:00 Palynological Investigations of Miocene Deposits on the New Siberian Archipelago (U.S.S.R.) Zyryanov, Eugene V. 1992-01-01 application/pdf https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64458 eng eng The Arctic Institute of North America https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64458/48393 https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64458 ARCTIC; Vol. 45 No. 3 (1992): September: 211–326; 285-294 1923-1245 0004-0843 Cenozoic era Evolution (Biology) Miocene epoch Palaeobotany Palynology Plant distribution Plant succession Sedimentation Stratigraphy Novosibirskiye Ostrova Russian Federation info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion research-article 1992 ftunivcalgaryojs 2025-05-27T03:29:43Z New paleobotanical data (mainly palynological) are reported from Miocene beds of the New Siberian Islands. The palynoflora has a number of distinctive features: the presence of typical hypoarctic forms, the high content taxa representing dark coniferous assemblages and the considerable proportion of small-leaved forms. Floristic comparison with the paleofloras or the Beaufort Formation in arctic Canada allows interpretation of the evolution of the Arctic as a landscape region during Miocene-Pliocene time. The paper is a preliminary analysis of the mechanisms of arctic florogenesis. The model of an "adaptive landscape" is considered in relation to the active eustatic drying of polar shelves.Key words: palynology, U.S.S.R., New Siberian Islands, Miocene, Arctic, florogenesis RÉSUMÉ. On rapporte de nouvelles données paléobotaniques (principalement palynologiques) venant de couches datant du miocène situées dans l’archipel de la Nouvelle-Sibérie. La palynoflore possède un nombre de caractéristiques particulières, parmi lesquelles, la présence de formes hypoarctiques typiques, la grande quantité de taxons représentant des assemblages de conifires sombres, ainsi qu’une collection considérable de formes à petites feuilles. Une comparaison floristique avec les paléoflores de la formation de Beaufort dans l’Arctique canadien permet d’interpréter l’évolution de l’Arctique en tant que zone peuplée d’espèces végetales durant le miocène et le pliocène. Cet article est une analyse préliminaire des mécanismes de la genèse de la flore arctique. Le modèle d’un paysage adaptatif est envisagé en rapport avec l’assèchement eustatique actif des plates-formes polaires.Mots clés: palynologie, U.R.S.S, archipel de la Nouvelle-Sibérie, miocène, Arctique, genèse de la flore Article in Journal/Newspaper Arctic Arctic Arctique* New Siberian Islands Unknown Arctic Canada New Siberian Islands ENVELOPE(142.000,142.000,75.000,75.000) Ostrova ENVELOPE(40.445,40.445,64.576,64.576) ARCTIC 45 3
spellingShingle Cenozoic era
Evolution (Biology)
Miocene epoch
Palaeobotany
Palynology
Plant distribution
Plant succession
Sedimentation
Stratigraphy
Novosibirskiye Ostrova
Russian Federation
Zyryanov, Eugene V.
Palynological Investigations of Miocene Deposits on the New Siberian Archipelago (U.S.S.R.)
title Palynological Investigations of Miocene Deposits on the New Siberian Archipelago (U.S.S.R.)
title_full Palynological Investigations of Miocene Deposits on the New Siberian Archipelago (U.S.S.R.)
title_fullStr Palynological Investigations of Miocene Deposits on the New Siberian Archipelago (U.S.S.R.)
title_full_unstemmed Palynological Investigations of Miocene Deposits on the New Siberian Archipelago (U.S.S.R.)
title_short Palynological Investigations of Miocene Deposits on the New Siberian Archipelago (U.S.S.R.)
title_sort palynological investigations of miocene deposits on the new siberian archipelago (u.s.s.r.)
topic Cenozoic era
Evolution (Biology)
Miocene epoch
Palaeobotany
Palynology
Plant distribution
Plant succession
Sedimentation
Stratigraphy
Novosibirskiye Ostrova
Russian Federation
topic_facet Cenozoic era
Evolution (Biology)
Miocene epoch
Palaeobotany
Palynology
Plant distribution
Plant succession
Sedimentation
Stratigraphy
Novosibirskiye Ostrova
Russian Federation
url https://journalhosting.ucalgary.ca/index.php/arctic/article/view/64458