نتایج جستجو برای: palynostratigraphy

تعداد نتایج: 71  

Journal: :The Holocene 2023

The micropaleontological and palynological content, geochemical isotopic composition of a marine sediment core collected off Pointe-des-Monts in eastern Québec, Canada, reveal regional palaeoclimatic paleoceanographic conditions the Lower St. Lawrence Estuary over last ~8200 years. pollen spore content allows comparison with terrestrial palynostratigraphy, whereas dinoflagellate cysts benthic f...

Journal: :Jurnal geosains dan teknologi 2022

The Subang, Kaliwangu, and Citalang Formation which are important parts of the Bogor Basin have not been studied, especially from palynostratigraphic aspect. Therefore, this study aims to conduct these three formations that well exposed in Cikandung River area, Sumedang Regency, West Java. Method used research is divided into several stages including sampling by spot sampling; preparation palyn...

Journal: :Palynology 2021

The upper Paleocene to lower Eocene Margaret Formation exposed at Stenkul Fiord on southern Ellesmere Island, Nunavut, Canada, represents a nearly continuous terrestrial succession of microfossil-rich clastic sediments and coal. These strata were deposited time extensive tectonic activity associated with Eurekan deformation. precise chronology the deformation is poorly known. Prior studies prov...

2001
ANDREW B. HECKERT

Ornithischian dinosaur body fossils are extremely rare in Triassic rocks worldwide, and to date the majority of such fossils consist of isolated teeth. Revueltosaurus is the most common Upper Triassic ornithischian dinosaur and is known from Chinle Group strata in New Mexico and Arizona. Historically, all large (>1 cm tall) and many small ornithischian dinosaur teeth from the Chinle have been r...

Journal: :Palynology 2021

The Trwyn y Parc solution pipes on the Isle of Anglesey, Wales, UK are one only three onshore Miocene fossil flora bearing sites. Here, we revise palynostratigraphy and present new palaeoclimate data for this geoheritage site. By comparison to palynological from northern Europe age has been refined Middle Miocene, possibly Langhian. This is confirmed by reconstructions comparable German especia...

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