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dc.contributor.author
Salocchi, Aura C.
dc.contributor.author
Krawielicki, Julia
dc.contributor.author
Eglinton, Timothy I.
dc.contributor.author
Fioroni, Chiara
dc.contributor.author
Fontana, Daniela
dc.contributor.author
Conti, Stefano
dc.contributor.author
Picotti, Vincenzo
dc.date.accessioned
2021-01-08T18:04:37Z
dc.date.available
2020-12-08T08:06:08Z
dc.date.available
2020-12-08T08:29:40Z
dc.date.available
2021-01-08T18:04:37Z
dc.date.issued
2021-01-15
dc.identifier.issn
0031-0182
dc.identifier.issn
1872-616X
dc.identifier.other
10.1016/j.palaeo.2020.110092
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/455176
dc.description.abstract
Paleoenvironmental and paleoclimatic variations experienced by the Mediterranean region during the Miocene Burdigalian-Langhian interval have been investigated through analysis of biomarker signals (n-alkanes and glycerol dialkyl glycerol tetraethers, GDGTs) from slope mudstones of the northern Apennines (Marne di Vicchio Fm). Terrestrial signatures in marine sediments reflected by preserved long-chain n-alkanes with a identifiable odd-over-even carbon number predominance attest to the thermal immaturity of the sedimentary rock. Abundances of n-C27, n-C29 and n-C31 alkanes, coupled with the carbon isotopic signatures of the n-C31 homologue suggest that Mediterranean vegetation crossed a transition phase adapting to arid conditions that may favored a shift from woodland to wooded grassland during the Middle Miocene. This ecosystem evolution could have been favored by the passage from warm humid conditions to a warm drier climate, as indicated by GDGT-based TEX86 and BIT indexes. Strong similarities between these Mediterranean biomarker records and those from the Atlantic (DSDP Sites 94, 516, 608) imply a constant connection of the western Mediterranean to the Atlantic Ocean from ~19 Ma to ~14.5 Ma.
en_US
dc.language.iso
en
en_US
dc.publisher
Elsevier
en_US
dc.subject
Plant wax biomarkers
en_US
dc.subject
Microbial biomarkers
en_US
dc.subject
Molecular proxies
en_US
dc.subject
Paleoclimate
en_US
dc.subject
Paleovegetation
en_US
dc.subject
Neogene
en_US
dc.subject
Apennines
en_US
dc.title
Biomarker constraints on Mediterranean climate and ecosystem transitions during the Early-Middle Miocene
en_US
dc.type
Journal Article
dc.date.published
2020-10-28
ethz.journal.title
Palaeogeography, Palaeoclimatology, Palaeoecology
ethz.journal.volume
562
en_US
ethz.journal.abbreviated
Palaeogeogr. Palaeoclimatol. Palaeoecol.
ethz.pages.start
110092
en_US
ethz.size
12 p.
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Amsterdam
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02704 - Geologisches Institut / Geological Institute::03754 - Willett, Sean / Willett, Sean
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02704 - Geologisches Institut / Geological Institute::03868 - Eglinton, Timothy I. / Eglinton, Timothy I.
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02704 - Geologisches Institut / Geological Institute::03754 - Willett, Sean / Willett, Sean
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02330 - Dep. Erdwissenschaften / Dep. of Earth Sciences::02704 - Geologisches Institut / Geological Institute::03868 - Eglinton, Timothy I. / Eglinton, Timothy I.
en_US
ethz.date.deposited
2020-12-08T08:06:19Z
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2021-01-08T18:04:46Z
ethz.rosetta.lastUpdated
2021-02-15T23:03:17Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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