Fossil angiosperm wood and its host deposits from the periphery of a dominantly effusive ancient volcano (Doupovské hory Volcanic Complex, Oligocene-Lower Miocene, Czech Republic): systematics, volcanology, geochronology and taphonomy

Bulletin of geosciences

Rapprich V¹  Sakala J¹  Pécskay Z¹ 

关键词: fossil angiosperm wood;    systematic palaeobotany;    volcanology;    taphonomy;    geochronology;    Tertiary;    Czech Republic;   

DOI  :  

来源: Czech Geological Survey

【 摘 要 】

AvarietyoffossilwoodsoccuronthenorthernmarginoftheDoupovskéhoryVolcanicComplexinthenorthwesternpartoftheCzechRepublic.Thewoodswereburiedbythreedifferentprocessesreflectingthreedifferentsettings.First,alargeareabetweenthetownsofKadaňandKláštereciscoveredbyanupto100mthicksequenceoflaharanddebrisavalanchedeposits.TheseflowsandavalanchesgatheredwoodofLiriodendron,Lauraceae,Platanus,Cercidiphyllum,?CraigiaandStyracaceaefromboththevolcaniccomplexslopesandadjacentplains.Second,arichassemblageoffossilwoodswiththermophilouselementssuchasLauraceaeandpalmswaspreservedonthenorthernvolcaniccomplexperipherybyaStrombolianeruptionofamonogeniccone.Third,ashallowlakeformedtothesideofthevolcaniccomplex,wherePlatanustrunkswerefossilizedinthetravertine.ThewoodofLiriodendronhasneverbeenpreviouslyrecordedinthelocalitiesrepresentingvolcaniccomplexfoothills,butiscommoninthelocallahardeposits.ThisdistributionleadsustohypothesizethatLiriodendronforestsdominatedhighertopographiclevelsoftheDoupovskéhoryVolcanicComplex,reaching,butprobablynotexceeding1000ma.s.l.

【 授权许可】

Unknown