Biostratigraphically useful Late Cretaceous–Paleocene Terrestrial palynomorphs from the Canadian Western Interior Sedimentary Basin

Autor:	Dennis R. Braman, Arthur R. Sweet
Rok vydání:	2012
Předmět:	Ammonite geography geography.geographical_feature_category Paleontology Context (language use) Biostratigraphy Structural basin Sedimentary basin language.human_language Cretaceous language Radiometric dating Palaeogeography Geology
Zdroj:	Palynology. 36:8-35
ISSN:	1558-9188 0191-6122
Popis:	The northern part of the North American Western Interior Sedimentary Basin has yielded well-preserved terrestrial palynomorphs whose occurrences allow the biostratigraphic characterization of the basin. Data have been compiled from sections that in composite span the latest Turonian to Paleocene. These data allow for the identification of species that are biostratigraphically useful within Alberta and adjacent portions of the basin. Progress has been made in establishing a stable biostratigraphic context for the basin using the first and last occurrences of 103 taxa. These palynomorphs provide a refined chronostratigraphic framework when combined with radiometric ages, polarity chronologies and ammonite biozonations. This framework has allowed the intrabasinal correlation of widely distributed sections in the Alberta and Montana portion of the basin and can be applied to stratigraphic problems in the more northern portion of the Western Interior Basin.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b0d572bf6c213385708033ee908e4702 https://doi.org/10.1080/01916122.2011.642127 Zobrazit plný text záznamu