Depositional environment of the Owadów-Brzezinki conservation Lagerstätte (uppermost Jurassic, central Poland) : evidence from microfacies analysis, microfossils and geochemical proxies

2016
journal article
article
20
cris.lastimport.wos2024-04-10T00:35:17Z
dc.abstract.enThe Owadów-Brzezinki quarry is one of the most important paleontological sites in Poland, known for its exceptionally well-preserved Upper Jurassic (Middle Volgian = uppermost Lower Tithonian) fossils. Carbonate deposits of the section record a transition from an offshore to coastal and lagoonal settings and have been studied based on microfacies, micropalaeontological, isotope and chemical proxies. The obtained data point to normal marine conditions during the deposition of the older part of the quarry section in an offshore setting and a gradual transition into lagoonal environment characterized by high-amplitude variations in seawater salinity and oxygenation level of bottom waters, both of which resulted in considerable changes in benthic fauna assemblages or in the total lack of the fauna at some intervals. Above-mentioned conditions during the deposition of the middle part of the quarry section have probably allowed the preservation of diversified fauna with soft tissues. The microfacies and chemical data indicate that dysoxic/anoxic episodes may have occurred not only during the deposition of known fauna-rich beds but also during the deposition of poorly studied, so far, younger part of the section. The uppermost part of the carbonates exposed in the Owadów-Brzezinki quarry originated during the re-appearance of normal marine chemistry mostly in the intertidal-subtidal settings. The depositional conditions of the Owadów-Brzezinki site are non- typical, among famous conservation Lagerstätten, owing to the rapid fluctuations in the oxygenation and salinity of bottom waters.pl
dc.affiliationWydział Biologii i Nauk o Ziemi : Instytut Nauk Geologicznychpl
dc.contributor.authorWierzbowski, Hubertpl
dc.contributor.authorDubicka, Zofiapl
dc.contributor.authorRychliński, Tomasz - 174010 pl
dc.contributor.authorDurska, Ewapl
dc.contributor.authorOlempska, Ewapl
dc.contributor.authorBłażejowski, Błażejpl
dc.date.accessioned2016-10-11T10:39:20Z
dc.date.available2016-10-11T10:39:20Z
dc.date.issued2016pl
dc.description.additionalBibliogr. s. 103-106pl
dc.description.number1pl
dc.description.physical81-108pl
dc.description.volume282pl
dc.identifier.doi10.1127/njgpa/2016/0606pl
dc.identifier.eissn2363-717Xpl
dc.identifier.issn0077-7749pl
dc.identifier.urihttp://ruj.uj.edu.pl/xmlui/handle/item/31368
dc.languageengpl
dc.language.containerengpl
dc.rightsDodaję tylko opis bibliograficzny*
dc.rights.licencebez licencji
dc.rights.uri*
dc.subject.encentral Polandpl
dc.subject.endepositional environmentpl
dc.subject.enelemental concentrationspl
dc.subject.enfossil Lagerstättepl
dc.subject.enLower Tithonianpl
dc.subject.enmicrofossilspl
dc.subject.enoxygen and carbon isotopespl
dc.subtypeArticlepl
dc.titleDepositional environment of the Owadów-Brzezinki conservation Lagerstätte (uppermost Jurassic, central Poland) : evidence from microfacies analysis, microfossils and geochemical proxiespl
dc.title.journalNeues Jahrbuch für Geologie und Paläontologie. Abhandlungenpl
dc.typeJournalArticlepl
dspace.entity.typePublication
cris.lastimport.wos
2024-04-10T00:35:17Z
dc.abstract.enpl
The Owadów-Brzezinki quarry is one of the most important paleontological sites in Poland, known for its exceptionally well-preserved Upper Jurassic (Middle Volgian = uppermost Lower Tithonian) fossils. Carbonate deposits of the section record a transition from an offshore to coastal and lagoonal settings and have been studied based on microfacies, micropalaeontological, isotope and chemical proxies. The obtained data point to normal marine conditions during the deposition of the older part of the quarry section in an offshore setting and a gradual transition into lagoonal environment characterized by high-amplitude variations in seawater salinity and oxygenation level of bottom waters, both of which resulted in considerable changes in benthic fauna assemblages or in the total lack of the fauna at some intervals. Above-mentioned conditions during the deposition of the middle part of the quarry section have probably allowed the preservation of diversified fauna with soft tissues. The microfacies and chemical data indicate that dysoxic/anoxic episodes may have occurred not only during the deposition of known fauna-rich beds but also during the deposition of poorly studied, so far, younger part of the section. The uppermost part of the carbonates exposed in the Owadów-Brzezinki quarry originated during the re-appearance of normal marine chemistry mostly in the intertidal-subtidal settings. The depositional conditions of the Owadów-Brzezinki site are non- typical, among famous conservation Lagerstätten, owing to the rapid fluctuations in the oxygenation and salinity of bottom waters.
dc.affiliationpl
Wydział Biologii i Nauk o Ziemi : Instytut Nauk Geologicznych
dc.contributor.authorpl
Wierzbowski, Hubert
dc.contributor.authorpl
Dubicka, Zofia
dc.contributor.authorpl
Rychliński, Tomasz - 174010
dc.contributor.authorpl
Durska, Ewa
dc.contributor.authorpl
Olempska, Ewa
dc.contributor.authorpl
Błażejowski, Błażej
dc.date.accessioned
2016-10-11T10:39:20Z
dc.date.available
2016-10-11T10:39:20Z
dc.date.issuedpl
2016
dc.description.additionalpl
Bibliogr. s. 103-106
dc.description.numberpl
1
dc.description.physicalpl
81-108
dc.description.volumepl
282
dc.identifier.doipl
10.1127/njgpa/2016/0606
dc.identifier.eissnpl
2363-717X
dc.identifier.issnpl
0077-7749
dc.identifier.uri
http://ruj.uj.edu.pl/xmlui/handle/item/31368
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights*
Dodaję tylko opis bibliograficzny
dc.rights.licence
bez licencji
dc.rights.uri*
dc.subject.enpl
central Poland
dc.subject.enpl
depositional environment
dc.subject.enpl
elemental concentrations
dc.subject.enpl
fossil Lagerstätte
dc.subject.enpl
Lower Tithonian
dc.subject.enpl
microfossils
dc.subject.enpl
oxygen and carbon isotopes
dc.subtypepl
Article
dc.titlepl
Depositional environment of the Owadów-Brzezinki conservation Lagerstätte (uppermost Jurassic, central Poland) : evidence from microfacies analysis, microfossils and geochemical proxies
dc.title.journalpl
Neues Jahrbuch für Geologie und Paläontologie. Abhandlungen
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

* The migration of download and view statistics prior to the date of April 8, 2024 is in progress.

Views
3
Views per month
Views per city
Hong Kong
2
Ashburn
1

No access

No Thumbnail Available