Foraminifera as environmental proxies of the Middle Miocene (Early Badenian) sediments of the Central Depression (Central Paratethys, Moravian part of the Carpathian Foredeep)

Bulletin of geosciences

Kopecka J¹ 

关键词: Middle Miocene;    Early Badenian;    Central Paratethys;    Carpathian Foredeep;    foraminifera;    palaeoecology;    Czech Republic;   

DOI  :  

来源: Czech Geological Survey

【 摘 要 】

MiddleMiocenesedimentsoftheCentralDepressionhavebeenstudiedbasedonforaminiferawithaviewtocharacterizepalaeoenvironmentalconditions.RockmaterialfromHV-5Rybničekcorewereused.ForaminiferalevidenceindicatesbiostratigraphicrangeofthelowerpartoftheUpperLagenidZone(EarlyBadenian–Langhian,MiddleMiocene).Thesedimentsoriginatefromadeepermarinebasinatthelevelofoutershelfwithpotentialextensiondeeperintothebathyalrealm.Bottomwaterswerewell-oxygenatedwitharedoxboundaryafewcentimetersfromtheseafloorwhichwascolonizedbysub-anddysoxicforaminifers.PalaeotemperatureofmarinewatercorrespondstotheMioceneclimaticoptimumwithshort-timeclimaticoscillationsofcoolerclimate

【 授权许可】

Unknown