Results 61 to 70 of about 9,024 (216)
Geological Journal, EarlyView.Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai +5 more
wiley +1 more source
, 2012 (Table 3) Description of carbon-isotope events in Campanian-Maastrichtian sediments of ODP Hole 122 ...
Huret, Emilia +13 more
core +1 more source
Geosciences, 2014 Sedimentary deposits in Stoddard County, southeastern Missouri, reveal a K-Pg transition sequence represented by the uppermost Maastrichtian Owl Creek Formation and the Paleocene Clayton Formation.
Natalie R. Dastas +2 more
doaj +1 more source
Diversity, relationships, and biogeography of the lambeosaurine dinosaurs from the European Archipelago, with description of the New Aralosaurin Canardia garonnensis. [PDF]
PLoS ONE, 2013 We provide a thorough re-evaluation of the taxonomic diversity, phylogenetic relationships, and historical biogeography of the lambeosaurine hadrosaurids from the European Archipelago.
Albert Prieto-Márquez +3 more
doaj +1 more source
Journal of Anatomy, EarlyView.The evaluation of the endocranial anatomy of 43 crocodylian species reveals several differences, including variation in the curvature of the encephalic endocast, the size of the endosseous labyrinth and paratympanic sinuses, and the presence of additional snout sinuses.
Paul M. J. Burke, Philip D. Mannion
wiley +1 more source
, 2006 The stratotype of the Maastrichtian Stage named by the Belgian geologist André Dumont in 1849 is situated in the Netherlands at the St Pietersberg.The original description of the "Maastricht Limestone"?
Robaszynski, F.
core
Late Campanian–Maastrichtian sequence stratigraphy from Kurdistan foreland basin, NE/Iraq
Journal of Petroleum Exploration and Production Technology, 2018 The Kurdistan foreland basin (NE Iraq) was formed as a result of the ophiolite–radiolarites obduction of the Iranian plate on the Arabian Plate. Extensive fieldwork for the determination of nine facies associations has been integrated with the planktonic
Fadhil Ahmed Ameen Lawa
doaj +1 more source
The 150th anniversary of the Maastrichtian Stage - a celebratory conference: Introduction [PDF]
Netherlands Journal of Geosciences - Geologie en Mijnbouw, 2003 It was André Hubert Dumont (1809–1857) (Fig. 1) who, while mapping at the St Pietersberg south of Maastricht in the summer of 1849, noted that the higher portion of the yellowish-white friable limestones exposed there represented something unique. So unique that he coined a name for it (Dumont, 1849), his ‘système maestrichtien’, with a fossil hash ...
Jagt, John W.M. +2 more
openaire +2 more sources
The Unexpected Discovery of Paleocene? Coals in Outcrops Thought to Be Cambrian, Al Huqf, Oman
Journal of Petroleum Geology, EarlyView.ABSTRACT Two brown organic deposits were encountered whilst investigating kaolinitic claystones thought to occur at the base of a Cambrian formation at outcrop. The age of these organic deposits is probably Paleocene from palynology. Organic petrography shows that they are subbituminous coals with some oil source potential.
Mohammed H. Al Kindi +4 more
wiley +1 more source
Stable carbon and oxygen isotope rates of Maastrichtian ODP samples from Shatsky Rise
, 2005 We present new isotopic and micropaleontological data from a depth transect on Shatsky Rise that record the response of the tropical Pacific to global biotic and oceanographic shifts during the mid-Maastrichtian.
Paul R Bown (6964958) +13 more
core +1 more source