Vegetation and climate of north anatolian and north aegean region since 7 Ma according to pollen analysis
This study concerns a long marine section (DSDP Site 380: Late Miocene to Present) and onshore exposed sections from the Late Miocene and/or Early Pliocene. The main target of this study is to reconstruct vegetation and climate in the North Anatolia and North Aegean region for the last 7 Ma. Two veg...
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Online Access: | https://theses.hal.science/tel-00720892 https://theses.hal.science/tel-00720892/document https://theses.hal.science/tel-00720892/file/TH2010_Biltekin_Demet.pdf |
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ftunivlyon:oai:HAL:tel-00720892v1 2024-05-19T07:36:53+00:00 Vegetation and climate of north anatolian and north aegean region since 7 Ma according to pollen analysis Végétation et climat des régions nord-anatolienne et nord-égéenne depuis 7 Ma d’après l’analyse pollinique Biltekin, Demet PaleoEnvironnements et PaleobioSphere (PEPS) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Université Claude Bernard - Lyon I Istanbul teknik üniversitesi Namik Cagatay Jean-Pierre Suc 2010-12-21 https://theses.hal.science/tel-00720892 https://theses.hal.science/tel-00720892/document https://theses.hal.science/tel-00720892/file/TH2010_Biltekin_Demet.pdf en eng HAL CCSD NNT: 2010LYO10298 tel-00720892 https://theses.hal.science/tel-00720892 https://theses.hal.science/tel-00720892/document https://theses.hal.science/tel-00720892/file/TH2010_Biltekin_Demet.pdf info:eu-repo/semantics/OpenAccess https://theses.hal.science/tel-00720892 Earth Sciences. Université Claude Bernard - Lyon I; Istanbul teknik üniversitesi, 2010. English. ⟨NNT : 2010LYO10298⟩ Anatolia North aegean Upper Neogene Quaternary Palynology Vegetation Climate Anatolie Nord Égée Néogène supérieur Quaternaire Palynologie Végétation Climat [SDU.STU]Sciences of the Universe [physics]/Earth Sciences info:eu-repo/semantics/doctoralThesis Theses 2010 ftunivlyon 2024-04-25T01:10:39Z This study concerns a long marine section (DSDP Site 380: Late Miocene to Present) and onshore exposed sections from the Late Miocene and/or Early Pliocene. The main target of this study is to reconstruct vegetation and climate in the North Anatolia and North Aegean region for the last 7 Ma. Two vegetation types were alternately dominant: thermophilous forests and open vegetations including Artemisia steppes. During the Late Miocene, most of the tropical and subtropical plants declined because of the climatic deterioration. However, some of them survived during the Late Pliocene, such as those which constituted coastal swamp forests (Glyptostrobus, Engelhardia, Sapotaceae, Nyssa) or composed deciduous mixed forests with mesothermic trees. Simultaneously, herbaceous assemblages became a prevalent vegetation component despite steppe elements (Artemisia, Ephedra, Hippophae rhamnoides) did not significantly develop. At 2.6 Ma, as a response to the onset of Arctic glaciations, subtropical elements rarefied despite some taxa persisted (Glyptostrobus, Engelhardia, Sapotaceae, Nyssa). In parallel, deciduous mixed forest assemblages composed of mesothermic trees (deciduous Quercus, Betula, Alnus, Liquidambar, Fagus, Carpinus, Tilia, Acer, Ulmus, Zelkova, Carya, Pterocarya) almost disappeared too while steppe environments strongly enlarged. Then, Artemisia steppic phases developed during longer temporal intervals than mesophilous tree phases all along the glacial-interglacial cycles (first with a period of 41 kyrs, then 100 kyrs). Since 1.8 Ma, herbaceous ecosystems including Artemisia steppes still continuously enlarged up today. Such an expansion of Artemisia steppes in the Ponto-Euxinian region was observed at the earliest Pliocene but their earliest settlement in Anatolia seems to have occurred in the Early Miocene. The development of the Artemisa steppes in Anatolia might result from the uplift of the Tibetan Plateau. Relictuous plants such as Carpinus orientalis, Pterocarya, Liquidambar orientalis, Zelkova persisted ... Doctoral or Postdoctoral Thesis Arctic Université de Lyon: HAL |
institution |
Open Polar |
collection |
Université de Lyon: HAL |
op_collection_id |
ftunivlyon |
language |
English |
topic |
Anatolia North aegean Upper Neogene Quaternary Palynology Vegetation Climate Anatolie Nord Égée Néogène supérieur Quaternaire Palynologie Végétation Climat [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
spellingShingle |
Anatolia North aegean Upper Neogene Quaternary Palynology Vegetation Climate Anatolie Nord Égée Néogène supérieur Quaternaire Palynologie Végétation Climat [SDU.STU]Sciences of the Universe [physics]/Earth Sciences Biltekin, Demet Vegetation and climate of north anatolian and north aegean region since 7 Ma according to pollen analysis |
topic_facet |
Anatolia North aegean Upper Neogene Quaternary Palynology Vegetation Climate Anatolie Nord Égée Néogène supérieur Quaternaire Palynologie Végétation Climat [SDU.STU]Sciences of the Universe [physics]/Earth Sciences |
description |
This study concerns a long marine section (DSDP Site 380: Late Miocene to Present) and onshore exposed sections from the Late Miocene and/or Early Pliocene. The main target of this study is to reconstruct vegetation and climate in the North Anatolia and North Aegean region for the last 7 Ma. Two vegetation types were alternately dominant: thermophilous forests and open vegetations including Artemisia steppes. During the Late Miocene, most of the tropical and subtropical plants declined because of the climatic deterioration. However, some of them survived during the Late Pliocene, such as those which constituted coastal swamp forests (Glyptostrobus, Engelhardia, Sapotaceae, Nyssa) or composed deciduous mixed forests with mesothermic trees. Simultaneously, herbaceous assemblages became a prevalent vegetation component despite steppe elements (Artemisia, Ephedra, Hippophae rhamnoides) did not significantly develop. At 2.6 Ma, as a response to the onset of Arctic glaciations, subtropical elements rarefied despite some taxa persisted (Glyptostrobus, Engelhardia, Sapotaceae, Nyssa). In parallel, deciduous mixed forest assemblages composed of mesothermic trees (deciduous Quercus, Betula, Alnus, Liquidambar, Fagus, Carpinus, Tilia, Acer, Ulmus, Zelkova, Carya, Pterocarya) almost disappeared too while steppe environments strongly enlarged. Then, Artemisia steppic phases developed during longer temporal intervals than mesophilous tree phases all along the glacial-interglacial cycles (first with a period of 41 kyrs, then 100 kyrs). Since 1.8 Ma, herbaceous ecosystems including Artemisia steppes still continuously enlarged up today. Such an expansion of Artemisia steppes in the Ponto-Euxinian region was observed at the earliest Pliocene but their earliest settlement in Anatolia seems to have occurred in the Early Miocene. The development of the Artemisa steppes in Anatolia might result from the uplift of the Tibetan Plateau. Relictuous plants such as Carpinus orientalis, Pterocarya, Liquidambar orientalis, Zelkova persisted ... |
author2 |
PaleoEnvironnements et PaleobioSphere (PEPS) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS) Université Claude Bernard - Lyon I Istanbul teknik üniversitesi Namik Cagatay Jean-Pierre Suc |
format |
Doctoral or Postdoctoral Thesis |
author |
Biltekin, Demet |
author_facet |
Biltekin, Demet |
author_sort |
Biltekin, Demet |
title |
Vegetation and climate of north anatolian and north aegean region since 7 Ma according to pollen analysis |
title_short |
Vegetation and climate of north anatolian and north aegean region since 7 Ma according to pollen analysis |
title_full |
Vegetation and climate of north anatolian and north aegean region since 7 Ma according to pollen analysis |
title_fullStr |
Vegetation and climate of north anatolian and north aegean region since 7 Ma according to pollen analysis |
title_full_unstemmed |
Vegetation and climate of north anatolian and north aegean region since 7 Ma according to pollen analysis |
title_sort |
vegetation and climate of north anatolian and north aegean region since 7 ma according to pollen analysis |
publisher |
HAL CCSD |
publishDate |
2010 |
url |
https://theses.hal.science/tel-00720892 https://theses.hal.science/tel-00720892/document https://theses.hal.science/tel-00720892/file/TH2010_Biltekin_Demet.pdf |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
https://theses.hal.science/tel-00720892 Earth Sciences. Université Claude Bernard - Lyon I; Istanbul teknik üniversitesi, 2010. English. ⟨NNT : 2010LYO10298⟩ |
op_relation |
NNT: 2010LYO10298 tel-00720892 https://theses.hal.science/tel-00720892 https://theses.hal.science/tel-00720892/document https://theses.hal.science/tel-00720892/file/TH2010_Biltekin_Demet.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1799476038895403008 |