Sedimentation in a synclinal shallow‐marine embayment : Coniacian of the North Sudetic Synclinorium, SW Poland

2020
journal article
article
11
dc.abstract.enThis study is a reconstruction of the Coniacian palaeogeographic and palaeoenvironmental development in the North Sudetic Basin, a synclinal trough within the Late Cretaceous Central European seaway linking the Boreal and Tethyan marine provinces. The basin formed as an early side effect of the Alpine orogeny combined with the mid‐Cretaceous eustasy, and crucial stages of its evolution occurred during the Coniacian. The basin in the early Coniacian was a long and narrow shallow‐marine embayment with a hypothetical (non‐preserved) bayhead strait funnelling tidal currents. Coalescing tidal sand ridges formed a littoral platform that prograded from the bayhead zone along the basin axis, impinged on laterally by the basin‐margin shoreface and local river deltas. A mid‐Coniacian forced marine regression and closure of the bayhead strait, attributed to the Alpine tectonism combined with eustasy, brought about a dramatic change in the basin, whereby the basin‐wide littoral sand platform emerged and turned briefly into a denudated coastal plain. The late Coniacian eustatic marine transgression formed an in‐place growing coastal sand barrier at the outer edge of the former littoral platform, sheltering a paralic limno‐lagoonal plain with peat‐forming mires. The coastal barrier was eventually drowned by the sea and maximum marine flooding occurred, followed by a normal regression recorded as a rapidly upwards‐shallowing succession of offshore‐transition to fluvio‐deltaic deposits. This case study of the sedimentation pattern in an evolving, tectonically controlled marine embayment contributes to the existing facies models for estuarine embayments formed by a passive marine drowning of large fluvial or glacial valleys.pl
dc.affiliationWydział Geografii i Geologii : Instytut Nauk Geologicznychpl
dc.contributor.authorLeszczyński, Stanisław - 129917 pl
dc.contributor.authorNemec, Wojciechpl
dc.date.accessioned2020-02-07T07:42:13Z
dc.date.available2020-02-07T07:42:13Z
dc.date.issued2020pl
dc.date.openaccess0
dc.description.accesstimew momencie opublikowania
dc.description.additionalBibliogr. s. 168-171pl
dc.description.number1pl
dc.description.physical144-171pl
dc.description.versionostateczna wersja wydawcy
dc.description.volume6pl
dc.identifier.doi10.1002/dep2.92pl
dc.identifier.eissn2055-4877pl
dc.identifier.projectROD UJ / OPpl
dc.identifier.urihttps://ruj.uj.edu.pl/xmlui/handle/item/148468
dc.languageengpl
dc.language.containerengpl
dc.rights.licenceCC-BY
dc.share.typeotwarte czasopismo
dc.subject.enIchnofaciespl
dc.subject.enlithofaciespl
dc.subject.enNorth Sudetic Basinpl
dc.subject.enparalic plainpl
dc.subject.enshoal‐water deltaspl
dc.subject.enshorefacepl
dc.subject.entidal sand ridgespl
dc.subtypeArticlepl
dc.titleSedimentation in a synclinal shallow‐marine embayment : Coniacian of the North Sudetic Synclinorium, SW Polandpl
dc.title.journalThe Depositional Recordpl
dc.typeJournalArticlepl
dspace.entity.typePublication
dc.abstract.enpl
This study is a reconstruction of the Coniacian palaeogeographic and palaeoenvironmental development in the North Sudetic Basin, a synclinal trough within the Late Cretaceous Central European seaway linking the Boreal and Tethyan marine provinces. The basin formed as an early side effect of the Alpine orogeny combined with the mid‐Cretaceous eustasy, and crucial stages of its evolution occurred during the Coniacian. The basin in the early Coniacian was a long and narrow shallow‐marine embayment with a hypothetical (non‐preserved) bayhead strait funnelling tidal currents. Coalescing tidal sand ridges formed a littoral platform that prograded from the bayhead zone along the basin axis, impinged on laterally by the basin‐margin shoreface and local river deltas. A mid‐Coniacian forced marine regression and closure of the bayhead strait, attributed to the Alpine tectonism combined with eustasy, brought about a dramatic change in the basin, whereby the basin‐wide littoral sand platform emerged and turned briefly into a denudated coastal plain. The late Coniacian eustatic marine transgression formed an in‐place growing coastal sand barrier at the outer edge of the former littoral platform, sheltering a paralic limno‐lagoonal plain with peat‐forming mires. The coastal barrier was eventually drowned by the sea and maximum marine flooding occurred, followed by a normal regression recorded as a rapidly upwards‐shallowing succession of offshore‐transition to fluvio‐deltaic deposits. This case study of the sedimentation pattern in an evolving, tectonically controlled marine embayment contributes to the existing facies models for estuarine embayments formed by a passive marine drowning of large fluvial or glacial valleys.
dc.affiliationpl
Wydział Geografii i Geologii : Instytut Nauk Geologicznych
dc.contributor.authorpl
Leszczyński, Stanisław - 129917
dc.contributor.authorpl
Nemec, Wojciech
dc.date.accessioned
2020-02-07T07:42:13Z
dc.date.available
2020-02-07T07:42:13Z
dc.date.issuedpl
2020
dc.date.openaccess
0
dc.description.accesstime
w momencie opublikowania
dc.description.additionalpl
Bibliogr. s. 168-171
dc.description.numberpl
1
dc.description.physicalpl
144-171
dc.description.version
ostateczna wersja wydawcy
dc.description.volumepl
6
dc.identifier.doipl
10.1002/dep2.92
dc.identifier.eissnpl
2055-4877
dc.identifier.projectpl
ROD UJ / OP
dc.identifier.uri
https://ruj.uj.edu.pl/xmlui/handle/item/148468
dc.languagepl
eng
dc.language.containerpl
eng
dc.rights.licence
CC-BY
dc.share.type
otwarte czasopismo
dc.subject.enpl
Ichnofacies
dc.subject.enpl
lithofacies
dc.subject.enpl
North Sudetic Basin
dc.subject.enpl
paralic plain
dc.subject.enpl
shoal‐water deltas
dc.subject.enpl
shoreface
dc.subject.enpl
tidal sand ridges
dc.subtypepl
Article
dc.titlepl
Sedimentation in a synclinal shallow‐marine embayment : Coniacian of the North Sudetic Synclinorium, SW Poland
dc.title.journalpl
The Depositional Record
dc.typepl
JournalArticle
dspace.entity.type
Publication
Affiliations

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