Results 61 to 70 of about 266 (168)

Dinocyst stratigraphy of the Lower Kimmeridge Clay, Westbury, England

open access: yesBulletin of the Geological Society of Denmark, 1986
Dinocyst assemblages from 41 samples collected from a 40 m section of the Jurassic Lower Kimmeridge Clay in a clay-pit in Westbury, Southern England, are described. 47 dinocyst species, 1 acritarch species and 1 tasmanid species are recorded. A new genus Pro­tobatioladinium and two new species Protobatioladinium westburiensis and Perisseiasphaeridium ...
openaire   +1 more source

Upper Jurassic dinocyst stratigraphy in the Danish Central Trough

open access: yesDanmarks Geologiske Undersøgelse Serie B, 1991
The English dinocyst zonations established by Woollam and Riding (1983) and Riding and Thomas (1988), and the Danish-English zonations of Davey (1979, 1982), are unified for the Danish North Sea area and the subzones of the Endoscrinium luridum Zone are redefined. Two standard sections for the Upper Jurassic are described and correlations to five other
openaire   +2 more sources

CORRELATION OF THE NEOGENE OF THE EASTERN PARATETHYS BY MICROFOSSILS (FORAMINIFERS, NANNOPLANKTON, DINOCYSTS)

open access: yesCollection of Scientific Works of the Institute of Geological Sciences of the NAS of Ukraine, 2009
В неогені Східного Паратетіса встановлено дев’ять асоціацій океанських мікрофосилій, за якими обґрунтовано границі олігоцену - міоцену, нижнього-середнього та середнього-верхнього міоцену, міоцену - пліоцену. Деталізовано вік літостратонів та проведено їх кореляцію як в межах Паратетіса, так і з Міжнародною стратиграфічною шкалою.
Semenenko, V.N.   +3 more
openaire   +3 more sources

Dinoflagellate cysts as indicators of primary productivity along a Baltic Sea–North Sea–Atlantic transect [PDF]

open access: yesJournal of Micropalaeontology
Dinoflagellate cysts (dinocysts) have a long-standing use as proxies due to their global distribution and ecological significance. Their application to reconstruct past primary productivity has been frequently debated in the literature, and different ...
C. S. Hilgen   +6 more
doaj   +1 more source

Paleocene – Late Oligocene dinoflagellate cysts biostratigraphy, onshore Niger Delta

open access: yesGeosystems and Geoenvironment
A new biostratigraphic biozonation for the Paleocene to Late Oligocene succession of the onshore Niger Delta has been developed based on the identification of significant stratigraphic dinoflagellate cyst events.
Festus Ojenabor   +2 more
doaj   +1 more source

Palaeoenvironmental study and sequence stratigraphy of Sanghaneh Formation in Qalehjegh section (North of Bojnord) using organic matter contents of the rock unit [PDF]

open access: yesJournal of Stratigraphy and Sedimentology Researches, 2015
  Introduction   Kopeh-Dagh basin is located northeast of Iran and in this basin the sedimentary beds began from middle Jurassic. The Sanghaneh Formation is one of the lower Cretaceous rock units in sections.
Hossein Kazemi, Ebrahim Ghasemi-Nejad
doaj   +2 more sources

Santonian dinocyst assemblages of the Santa Marta Formation, Antarctic Peninsula: Inferences for paleoenvironments and paleoecology

open access: yesAnais da Academia Brasileira de Ciências, 2015
To better understand the paleoenvironments of the lower-middle Santonian, dinocyst data were obtained from the Santa Marta Formation, Larsen Basin, James Ross Island, Antarctic Peninsula. This study provides the first available quantitative dinocyst data
SUSAN P. CASTRO, MARCELO A. CARVALHO
doaj   +1 more source

TRIASSIC AND JURASSIC CALCAREOUS NANNOFOSSILS OF THE PIZZO MONDELLO SECTION: A SEM STUDY

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2012
Pizzo Mondello is a ca. 500 m thick pelagic-hemipelagic succession cropping out in Sicily consisting of a nodular cherty limestone facies association of late Carnian to late Norian age.
NEREO PRETO   +6 more
doaj   +1 more source

Protocol for pollen and dinocyst analysis in marine sediments v1

open access: yes
The protocol is dedicated to the preparation of sediment samples from marine cores to analyse pollen and dinocyts.
Muriel Geoget   +5 more
openaire   +1 more source

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