Results 11 to 20 of about 3,403 (222)

Cretaceous-Tertiary Foraminifera and Palynomorphs from Djega Section and Inferred Paleodepositional Environments, Rio Del Rey Basin, Cameroon, West Africa. [PDF]

ScientificWorldJournal, 2018
Late Cretaceous‐Paleocene foraminiferans and palynomorphs were recovered from the upper section of the Djega outcrop in the Rio del Rey Basin. Only a few planktonic foraminiferan species of the genera Heterohelix and Hedbergella were recovered among an assemblage dominated by calcareous and agglutinated benthonics. Marine dinocysts are curiously absent
Anoh NO, Njoke ML, Elangwe ND.
europepmc   +2 more sources

Palynology of Early Cretaceous (Barremian to Aptian) hydrocarbon (methane) seep carbonates and associated mudstones, Wollaston Forland, Northeast Greenland

Acta Palaeobotanica, 2022
Palynostratigraphic and palynofacies analysis have been performed on hydrocarbon seep carbonate, carbonate nodule and mudstone samples from the Early Cretaceous Kuhnpasset Beds in the Kuhnpasset area of Wollaston Forland, Northeast Greenland.
Emil Bang, Hans Arne Nakrem, Crispin T.S. Little, Wolfram Kürschner, Simon R.A. Kelly, Morten Smelror   +5 more
doaj   +1 more source

Palynostratigraphy and palaeoecology of the Niur Formation, Tikdar section, northwest of Kerman, Central Iran [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2019
Diverse, moderately to well-preserved palynomorphs including acritarchs (sensu stricto), prasinophytes cyst, chitinozoans, scolecodonts, and spores occur in some surface samples (90 meters thereof) of the Niur Formation (200 m thick) at the Tikdar ...
Hossein Hashemi, fereshteh sajjadi, Neda Bahrami Hesari   +2 more
doaj   +1 more source

Uplift, deflation and marine onlap of a Jurassic rift dome, illustrated by a backstepping Middle–Upper Jurassic shelf‐to‐slope succession, Geographical Society Ø, East Greenland

Terra Nova, Volume 35, Issue 6, Page 506-513, December 2023., 2023
Abstract “Doming–rifting–spreading” constitute the main phases of classical plate tectonics. The Middle–Upper Jurassic succession of East Greenland is interpreted as reflecting formation, deflation and onlap of a rift dome, similar to contemporaneous rift domes in the North Sea, Denmark and southern Sweden.
Finn Surlyk, Peter Alsen, Jussi Hovikoski, Stefan Piasecki   +3 more
wiley   +1 more source

Palynostratigraphy of the Dalichai Formation in Darjazin section, North of Semnan [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2018
The Dalichai Formation in Darjazin section in NE Semnan with a thickness of 631 meters consisting of an alternation of bulish-gray was studied.This formation overlies the Shemshak formation disconformity with conglomerate bed and it has gradually been ...
khadijeh Mohammad-khani, Elahe Zarei
doaj   +1 more source

High‐resolution environmental changes recorded in ostracod and mollusc fauna from the Holsteinian palaeolake at Ortel Królewski II, eastern Poland

Boreas, Volume 51, Issue 4, Page 793-809, October 2022., 2022
To better understand the environmental variability during the Holsteinian interglacial, fauna of the palaeolake deposits at Ortel Królewski II, eastern Poland was investigated. The analysis covered the uppermost part of the profile, representing the so‐called pre‐optimal part of the Holsteinian interglacial (MIS 11c), namely the Taxus and Pinus‐Larix ...
Monika Czajkowska
wiley   +1 more source

Chironomid‐inferred summer temperature development during the late Rissian glacial, Eemian interglacial and earliest Würmian glacial at Füramoos, southern Germany

Boreas, Volume 51, Issue 2, Page 496-516, April 2022., 2022
We present a new chironomid record from southern Germany that covers the mid‐Eemian to the end of the first Würmian stadial (roughly 125‐105 ka) and also parts of the late Rissian glaciation and early Brörup interstadial of the early Würmian glaciation.
Alexander Bolland, Oliver A. Kern, Andreas Koutsodendris, Jörg Pross, Oliver Heiri   +4 more
wiley   +1 more source

New Fagaceous pollen taxa from the Miocene Søby flora of Denmark and their biogeographic implications

American Journal of Botany, Volume 108, Issue 8, Page 1500-1524, August 2021., 2021
Abstract Premise The Fagaceae comprise around 1000 tree species in the Northern Hemisphere. Despite an extensive fossil pollen record, reconstructing biogeographic patterns is hampered because it is difficult to achieve good taxonomic resolution with light microscopy alone.
Thomas Denk, Johannes M. Bouchal
wiley   +1 more source

Regional correlation and seismic stratigraphy of Triassic Strata in the Greater Barents Sea: Implications for sediment transport in Arctic basins

Basin Research, Volume 33, Issue 2, Page 1546-1579, April 2021., 2021
Abstract The Greater Barents Sea Basin (GBSB) in Arctic Russia and Norway is an intracratonic basin that accommodated an enormous amount of sediment during the Triassic. These deposits are up to 4.5 km thick over an area 2,500,000 km2, and consist of marine mudstones and mudstone‐rich fluvio‐deltaic topsets with sandstone‐dominated fluvial channels ...
Albina Gilmullina, Tore Grane Klausen, Niall William Paterson, Anna Suslova, Christian Haug Eide   +4 more
wiley   +1 more source

Palynostratigraphy of the Middle Jurassic strata of central and eastern Alborz [PDF]

Journal of Stratigraphy and Sedimentology Researches, 2018
Introduction In the geological history of Iran, the Mesozoic Era is of great significance since many important geological events occurred during this time interval. The tectonic and paleogeographic evolution of Iran during the Mesozoic controlled by the
Firoozeh Hashemi Yazdi, Fereshteh Sajjadi, Hossein Hashemi   +2 more
doaj   +1 more source