Exceptionally favourable life conditions for macrobenthos during the Late Cenomanian OAE-2 event : ichnological record from the Bonarelli Level in the Grajcarek Unit, Polish Carpathians

2013
journal article
article
23
cris.lastimport.wos2024-04-10T01:08:27Z
dc.abstract.enPelagic and hemipelagic sediments of the Bonarelli Level (uppermost Cenomanian) in the Sztolnia section (Grajcarek Unit, Polish Carpathians) contain trace fossils of the Zoophycos ichnofacies, including (in descending order of abundance): Chondrites (smaller and larger forms), Planolites, Thalassinoides, Palaeophycus, Taenidium, Teichichnus, and Zoophycos. They occur in thick bioturbated layers, which are interbedded with rare, thin layers of unbioturbated black shales. The black shale layers mark the Bonarelli Level and are interpreted as a record of anoxia or dysoxia. Coeval sections in the Western Tethys contain similar trace fossils but they are less abundant and these sections are characterized by thicker unbioturbated black shale layers and thinner bioturbated layers. This confirms the exceptionally favourable life conditions in sediments of the Sztolnia section, which do not record strong global anoxia during the OAE-2 event. Such favourable conditions were probably caused by effective oxygenation of pore waters and deep burial of organic matter, which are a consequence of high rates of accumulation and the palaeogeographical location of the section on a flank of a submarine high, under strong circulation.pl
dc.affiliationWydział Biologii i Nauk o Ziemi : Instytut Nauk Geologicznychpl
dc.contributor.authorUchman, Alfred - 132472 pl
dc.contributor.authorRodríguez-Tovar, Francisco Javierpl
dc.contributor.authorOszczypko, Nestor - 131218 pl
dc.date.accessioned2015-06-09T08:29:00Z
dc.date.available2015-06-09T08:29:00Z
dc.date.issued2013pl
dc.description.physical1-10pl
dc.description.volume46pl
dc.identifier.doi10.1016/j.cretres.2013.08.007pl
dc.identifier.eissn1095-998Xpl
dc.identifier.issn0195-6671pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/9067
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.rights.uri*
dc.subject.enoceanic anoxic eventspl
dc.subject.enichnologypl
dc.subject.enCretaceouspl
dc.subject.enCarpathianspl
dc.subtypeArticlepl
dc.titleExceptionally favourable life conditions for macrobenthos during the Late Cenomanian OAE-2 event : ichnological record from the Bonarelli Level in the Grajcarek Unit, Polish Carpathianspl
dc.title.journalCretaceous Researchpl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-10T01:08:27Z
dc.abstract.enpl
Pelagic and hemipelagic sediments of the Bonarelli Level (uppermost Cenomanian) in the Sztolnia section (Grajcarek Unit, Polish Carpathians) contain trace fossils of the Zoophycos ichnofacies, including (in descending order of abundance): Chondrites (smaller and larger forms), Planolites, Thalassinoides, Palaeophycus, Taenidium, Teichichnus, and Zoophycos. They occur in thick bioturbated layers, which are interbedded with rare, thin layers of unbioturbated black shales. The black shale layers mark the Bonarelli Level and are interpreted as a record of anoxia or dysoxia. Coeval sections in the Western Tethys contain similar trace fossils but they are less abundant and these sections are characterized by thicker unbioturbated black shale layers and thinner bioturbated layers. This confirms the exceptionally favourable life conditions in sediments of the Sztolnia section, which do not record strong global anoxia during the OAE-2 event. Such favourable conditions were probably caused by effective oxygenation of pore waters and deep burial of organic matter, which are a consequence of high rates of accumulation and the palaeogeographical location of the section on a flank of a submarine high, under strong circulation.
dc.affiliationpl
Wydział Biologii i Nauk o Ziemi : Instytut Nauk Geologicznych
dc.contributor.authorpl
Uchman, Alfred - 132472
dc.contributor.authorpl
Rodríguez-Tovar, Francisco Javier
dc.contributor.authorpl
Oszczypko, Nestor - 131218
dc.date.accessioned
2015-06-09T08:29:00Z
dc.date.available
2015-06-09T08:29:00Z
dc.date.issuedpl
2013
dc.description.physicalpl
1-10
dc.description.volumepl
46
dc.identifier.doipl
10.1016/j.cretres.2013.08.007
dc.identifier.eissnpl
1095-998X
dc.identifier.issnpl
0195-6671
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/9067
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
bez licencji
dc.rights.uri*
dc.subject.enpl
oceanic anoxic events
dc.subject.enpl
ichnology
dc.subject.enpl
Cretaceous
dc.subject.enpl
Carpathians
dc.subtypepl
Article
dc.titlepl
Exceptionally favourable life conditions for macrobenthos during the Late Cenomanian OAE-2 event : ichnological record from the Bonarelli Level in the Grajcarek Unit, Polish Carpathians
dc.title.journalpl
Cretaceous Research
dc.typepl
JournalArticle
dspace.entity.type
Publication

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