Results 21 to 30 of about 16,766 (219)

SYNTHESIS OF CALCAREOUS NANNOFOSSIL EVENTS IN TETHYAN LOWER AND MIDDLE JURASSIC SUCCESSIONS

Rivista Italiana di Paleontologia e Stratigrafia, 1999
This paper is a synthesis of calcareous nannofossil biostratigraphy for the Lower and Middle Jurassic of the Mediterranean Province based on several sections from Northern and Central Italy.
EMANUELA MATTIOLI, ELISABETTA ERBA
doaj   +1 more source

Review and revision of Cenozoic tropical planktonic foraminiferal biostratigraphy and calibration to the Geomagnetic Polarity and Astronomical Time Scale [PDF]

, 2010
Planktonic foraminifera are widely utilized for the biostratigraphy of Cretaceous and Cenozoic marine sediments and are a fundamental component of Cenozoic chronostratigraphy.
Heiko Pälike, Berggren, William A., Bridget S. Wade, Pearson, Paul N., Pälike, Heiko, Paul N. Pearson, Wade, Bridget S., William A. Berggren, Pearson, Paul Nicholas   +8 more
core   +1 more source

Pliocene to modern Southern Ocean diatom biostratigraphy revised using samples from IODP Expedition 382 [PDF]

Journal of Micropalaeontology
Biostratigraphy is frequently used to generate age models and is significant to understanding the rate and timing of Cenozoic climate change. Records from the Southern Ocean (SO) are particularly valuable in understanding the past behavior of the ...
J. P. Warnock, B. T. Reilly, L. Armbrecht, Y. Kato   +3 more
doaj   +1 more source

Magnetostratigraphic and biostratigraphic synthesis of ocean drilling program Leg 105: Labrador Sea and Baffin Bay [PDF]

, 1989
During Ocean Drilling Program (ODP) Leg 105, three sites (Sites 645 through 647) were drilled in Baffin Bay and the Labrador Sea to examine the tectonic evolution and the climatic and oceanic histories of this region.
J.G. Baldauf, R.D. Jarrard, W.A. Berggren, Clement, B.G., Knüttel, S., F. Hall, Baldauf, J.G., Jarrard, R.D., Lazarus, D., Monjanel, A.-L., J.V. Firth, M.A. Kaminski, A.-L. Monjanel, Kaminski, M.A., Hall, F., P.J. Mudie, Russell, M.D., Aksu, A.E., A. de Vernal, S. Knüttel, D. Lazarus, M.J. Head, M.D. Russell, F.E. Gradstein, Berggren, W.A., Gradstein, F.E., Mudie, P.J., B.G. Clement, de Vernal, A., A.E. Aksu, Head, M.J., Firth, J.V.   +31 more
core   +1 more source

First record of the Ordovician fauna in Mila-Kuh, eastern Alborz, northern Iran [PDF]

Estonian Journal of Earth Sciences, 2015
Restudy of the Cambrian–Ordovician boundary beds, traditionally assigned to the Mila Formation Member 5 in Mila-Kuh, northern Iran, for the first time provides convincing evidence of the Early Ordovician (Tremadocian) age of the uppermost part of the ...
Mohammad-Reza Kebria-ee Zadeh, Mansoureh Ghobadi Pour, Leonid E. Popov, Christian Baars, Hadi Jahangir   +4 more
doaj   +1 more source

New biostratigraphically important chitinozoans from the Kukruse Regional Stage, Upper Ordovician of Baltoscandia [PDF]

Estonian Journal of Earth Sciences, 2015
Three new chitinozoan species, Conochitina savalaensis, Conochitina viruana and Belonechitina intonsa, are described. All these species are stratigraphically restricted to the Kukruse age (lowermost Sandbian, Laufeldochitina stentor chitinozoan Zone) and
Jaak Nõlvak, Garmen Bauert
doaj   +1 more source

Artificial intelligence models for quantitative biostratigraphy.

, 2001
Artificial intelligence models for quantitative ...
Tao. Zhang (7971983)
core   +4 more sources

Biostratigraphy and depositional history of the tepetate formation at Arroyo Colorado (Early-Middle Eocene), Baja California Sur, Mexico

Ciencias Marinas, 2000
 An integrated study of Foraminifera, Ostracoda and lithostratigraphy was conducted on samples of the Tepetate Formation from the Arroyo Colorado locality, Baja California Sur (Mexico).
AL Carreño, J Ledesma-Vázquez, R Guerrero-Arenas   +2 more
doaj   +1 more source

A bio-chemostratigraphical test of the synchroneity of biozones in the upper Silurian of Estonia and Latvia with some implications for practical stratigraphy [PDF]

Estonian Journal of Earth Sciences, 2015
The paper discusses the reliability of different biozones in terms of their synchroneity when crossing facies boundaries within a sedimentary basin. Graptolite biozones are the most trusted ones, but also biozones based on conodonts, chitinozoans and ...
Dimitri Kaljo, Rein Einasto, Tõnu Martma, Tiiu Märss, Viiu Nestor, Viive Viira   +5 more
doaj   +1 more source

Genus Sororistirps (Porifera, Hexactinellida, Ventriculitidae) [PDF]

Известия Саратовского университета. Новая серия: Серия Науки о Земле
Representatives of the genus Sororistirps, distinguished among the Ventriculites, have been detected in the Santonian – Maastrichtian rocks from the southeast of the Russian Plate.
Pervushov, Evgeniy Mikhaylovich
doaj   +1 more source