DSpace UNL

RUN >
Faculdade de Ciências e Tecnologia (FCT) >
FCT Departamentos >
FCT: Departamento de Ciências da Terra >
FCT: DCT - Ciências da Terra >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10362/4915

Título: Palynologic data from Aquitaine (SW France) Middle Miocene Sables Fauves Formation. Climatic evolution
Autor: Gardère, P.
Pais, João
Palavras-chave: Palynology
Paleoclimate
Langhian
Serravallian
Miocene
Aquitaine
SW France
Issue Date: 2007
Editora: Departamento de Ciências da Terra
Resumo: Climatic reconstructions based on palynological data from Aquitaine outcrops emphasize an important degradation phase during the Lower Serravallian. Climatic and environmental changes can be related to sea-level variations (Bur 5 / Lan 1, Lan 2 / Ser 1 and Ser 2 cycles). Transgressive phases feature warmer conditions and more open environments whereas regressive phases are marked by a cooler climate and an extent of the forest cover. From Langhian to Middle Serravallian, a general cooling is highlighted, with disappearance of most megathermic taxa and a transition from warm and dry climate to warm-temperate and much more humid conditions. Conclusions are consistent with studies on bordering areas and place the major degradation phase around 14 My. The palynologic data allow filling a gap in the climatic evolution of Southern France, as a connection between Lower and Upper Miocene, both well recorded. These results document, on Western Europe scale, latitudinal climatic gradient across Northern hemisphere while featuring a transition between Mediterranean area and northeastern Atlantic frontage.
URI: http://hdl.handle.net/10362/4915
Appears in Collections:FCT: DCT - Ciências da Terra

Files in This Item:

File Description SizeFormat
CT_16_12_P_Gardere_J_Pais.pdf1,18 MBAdobe PDFView/Open

Please give feedback about this item
Statistics
FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpaceOrkut
Formato BibTex mendeley Endnote Logotipo do DeGóis 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Universidade Nova de Lisboa  - Feedback
Promotores do RCAAP   Financiadores do RCAAP

Fundação para a Ciência e a Tecnologia Universidade do Minho   Governo Português Ministério da Educação e Ciência PO Sociedade do Conhecimento (POSC) Portal oficial da União Europeia