Vis enkel innførsel

dc.contributor.authorBeck, Kristina Marieeng
dc.date.accessioned2014-09-05T07:29:41Z
dc.date.available2014-09-05T07:29:41Z
dc.date.issued2013-07-02eng
dc.identifier.urihttps://hdl.handle.net/1956/8413
dc.description.abstractAn updated Late Neogene dinoflagellate cyst biozonation of the Norwegian Sea is needed, as it, together with other recent zonations from the Iceland Sea, the eastern North Atlantic and the eastern North Sea (Denmark), will form a cornerstone for achieving a better age constraint of the Utsira Formation. In the present study magnetostratigraphically dated palynological samples from the Ocean Drilling Program Hole 642B, on the outer Vøring Plateau, eastern Norwegian Sea, have been studied, and a contribution to an up to date Late Neogene biozonation is made. The studied interval encompasses the Late Messinian to the Early Piazencian, and has been divided into a local zonation scheme of four interval zones (KMB-1-KMB-4). The KMB-1 Interval Zone (>5.82-5.33 Ma) is defined by the highest persistent occurrence of Selenopemphix brevispinosa. The base is presently not defined. The KMB-2 Interval Zone (4.91-4.64 Ma) is defined from the highest persistent occurrence of Selenopemphix brevispinosa to the highest occurrence of Reticulatosphaera actinocoronata. The KMB-3 Interval Zone (4.50-3.60 Ma) is defined from the highest occurrence of Reticulatosphaera actinocoronata to the highest occurrence of Operculodinium? eirikianum var. crebrum. The KMB-4 Interval Zone is defined from the highest occurrence of Operculodinium? eirikianum var. crebrum, but the top is presently not defined. Within the KMB-1-KMB-3 interval zones, several dinoflagellate cyst and acritarch events have also been described. These zones and events were compared with the zonations from the Iceland Sea, the eastern North Atlantic and the eastern North Sea (Denmark). In general, this comparison revealed differences in the distribution and range of the dinoflagellate cysts and acritarchs, likely due to different latitudinal and oceanographic settings of the investigated locations. However, one good regional event and upper zone boundary, are clearly recognized in both the Icelandic Sea and the Norwegian Sea.en_US
dc.format.extent1744573 byteseng
dc.language.isoengeng
dc.publisherThe University of Bergenen_US
dc.subjectDinoflagellate Cyst Biostratigraphyeng
dc.subjectODP642Beng
dc.titleLatest Miocene to Late Pliocene Dinoflagellate Cyst Biostratigraphy of the Ocean Drilling Program Hole 642B on the Vøring Plateauen_US
dc.typeMaster thesis
dc.date.updated2014-09-05T07:22:06Z
dc.rights.holderCopyright the author. All rights reserveden_US
dc.description.degreeMaster i Geovitenskapen_US
dc.description.localcodeMAMN-GEOV
dc.description.localcodeGEOV399
dc.subject.nus756199eng
fs.subjectcodeGEOV399


Tilhørende fil(er)

Thumbnail

Denne innførselen finnes i følgende samling(er)

Vis enkel innførsel