Andrzej Pelc, Stanisław Hałas, Robert Niedźwiedzki,
Oxygen isotope analysis of shark teeth phosphates from Bartonian (Eocene) deposits in Mangyshlak peninsula, Kazakhstan We report the results of high-precision (±0.05‰) oxygen isotope analysis of phosphates in 6 teeth of fossil sharks from the Mangyshlak peninsula. This precision was achieved by the offline preparation of CO 2 which was then analyzed on a dual-inlet and triple-collector IRMS. The teeth samples were separated from Middle- and Late Bartonian sediments cropping out in two locations, Usak ...
Tópico(s): Paleontology and Stratigraphy of Fossils
2011 - De Gruyter Open | Mineralogia
John D. Jeffers, Robert C. Reynolds,
Tópico(s): Geological and Geochemical Analysis
1987 - Cambridge University Press | Clays and Clay Minerals
Л. Ф. Копаевич, A. S. Аlekseev, Evgeniy J. Baraboshkin, В.Н. Беньямовский,
The Cretaceous succession of the Mangyshlak Region is reviewed. Two periods in the geological history of this region are recognised. Sedimentary units are determined for period on the base of detailed stratigraphy. Usually the units are separated by unconformities, differing in range and significance. The time of terrigenous sedimentation extends from the earliest Cretaceous to the early Turonian. The Neocomian succession was formed under changing Tethyan/Boreal influence. The main interruption ...
Tópico(s): Hydrocarbon exploration and reservoir analysis
1999 - Muséum national d'histoire naturelle | Geodiversitas
Yvonne Herman, S. K. Bhattacharya, Katharina Perch Nielsen, Lyudmila Fedorovna Kopaevitch, D. P. Naĭdin, V.T. Frolov, John D. Jeffers, Ashish Sarkar,
... earliest Tertiary shallow water marine deposits in the Mangyshlak Peninsula, USSR suggest sudden and severe cooling possibly accompanied ...
Tópico(s): Marine and environmental studies
2022 - Sociedad Española de Paleontología | Spanish Journal of Palaeontology