Results 31 to 40 of about 41,365 (200)

Nannofossils from the Middle Eocene Sabiñánigo Sandstone Formation in the Jaca Basin (southern Pyrenees): biostratigraphy and paleoenvironmental implications [PDF]

Journal of Micropalaeontology
This study presents the first detailed data on calcareous nannofossil assemblages from the Sabiñánigo Sandstone Formation in the Jaca Basin (central south Pyrenees). This formation is mainly composed of deltaic and outer-shelf sediments.
E. R. Lasluisa, O. Oms, E. Remacha, A. González-Lanchas, H. Blanchar-Roca, J. A. Flores   +5 more
doaj   +1 more source

CALCAREOUS NANNOPLANKTON OF CALLOVIAN OF UKRAINE

Collection of Scientific Works of the Institute of Geological Sciences of the NAS of Ukraine, 2013
Наведені дані вивчення вапняного нанопланктону з розрізів Дніпровсько-Донецької западини, Північно-Західного Донбасу, Гірського Криму. Аналіз поширення нанофосилій з вивчених розрізів, а також з розрізів Московської синеклізи, Саратовського Поволжя та Канівських дислокацій дозволяє виділити в келовеї дві нанопланктонні зони: Stephanolithuin hexum ...
Matveyev, A.V., Bondarev, D.S.
openaire   +3 more sources

Life in extreme Oceans: Calcareous Nannoplankton adaptations and strategies during Oceanic Anoxic Event 2

, 2013
At present about one third of the carbon dioxide (CO2) released in the atmosphere from fossil fuel burning is absorbed by the oceans. The invasion of anthropogenic CO2 into the oceans increases seawater acidity and decreases carbonate ion concentration ...
E. Erba, G. Faucher, C. Bottini
core   +2 more sources

THE EARLY PLIOCENE MAMMAL ASSEMBLAGE OF VAL DI PUGNA (TUSCANY, ITALY) IN THE LIGHT OF CALCAREOUS PLANKTON BIOSTRATIGRAPHICAL DATA AND PALEOECOLOGICAL OBSERVATIONS

Rivista Italiana di Paleontologia e Stratigrafia, 2001
The stratigraphy of clayey and sandy beds outcropping in Val di Pugna locality near Siena (Tuscany, Italy) celebrated for the past finds of fossil mammalian remains, is studied here.
GIOVANNI BIANUCCI, PAUL MAZZA, DONATO MEROLA, GIOVANNI SARTI, ANTONIO CASCELLA   +4 more
doaj   +1 more source

The Campanian–Maastrichtian foraminiferal biostratigraphy of the basement sediments from the southern Pannonian Basin (Vojvodina, northern Serbia): implications for the continuation of the Eastern Vardar and Sava zones

Geologica Carpathica, 2017
Micropalaeontological and biostratigraphical studies included Campanian-Maastrichtian complexes from five oil exploration wells drilled in northern Serbia (Vojvodina): the first is a carbonate-clastic complex and second is a complex containing ophiolites
Dunčić Milena, Dulić Ivan, Popov Olivera, Bogićević Goran, Vranjković Alan   +4 more
doaj   +1 more source

Spermatophyta Molecular Clock: Time Drift and Recent Acceleration. [PDF]

Plant Environ Interact
Exponential increase in the base substitution rate in recent geologic time. ABSTRACT Angiospermae radiation is widely recognized as a mid‐Cretaceous event, but the adaptive radiation of Asarum and Viola as spring ephemerals also occurred during the Quaternary. To better understand the evolution of Angiospermae through geological time, a robust and well‐
Osozawa S.
europepmc   +2 more sources

Environmental and physiological conditions that led to the rise of calcifying nannoplankton in the Late Triassic

Frontiers in Earth Science, 2023
The rise of calcifying nannoplankton in the Late Triassic (237–201 Ma) had profound consequences for the carbonate buffering capacity of the ocean.
Sönke Hohn, Jacopo Dal Corso, Kim Lisa Hoke, Silke Thoms, Agostino Merico, Agostino Merico   +5 more
doaj   +1 more source

Revised Middle Miocene datum for initial marine flooding of North Croatian Basins (Pannonian Basin System, Central Paratethys)The Pannonian Basin System (PBS) originated during the Early Miocene as a result of extensional processes between the Alpine-Carp

Geologia Croatica, 2011
The Pannonian Basin System (PBS) originated during the Early Miocene as a result of extensional processes between the Alpine-Carpathian and the Dinaride Orogenic Belts.
Stjepan Ćorić, Davor Pavelić, Fred Rögl, Oleg Mandic, Sejfudin Vrabac, Radovan Avanić, Lazar Jerković, Alan Vranjković   +7 more
doaj   +1 more source

Magnetobiostratigraphic synthesis of Leg 123: sites 765 and 766 (Argo Abyssal Plain and Lower Exmouth Plateau) [PDF]

, 1992
During ODP Leg 123, Sites 765 and 766 were drilled to examine the tectonic evolution, sedimentary history, and paleoceanography of the Argo Abyssal Plain and lower Exmouth Plateau.
Moran, M.J., Ogg, J. G., Bown, P.R., Haig, D.W., M.J. Moran, Baumgartner, P. O., Moran, M. J., J. Mutterlose, P.O. Baumgartner, J.G. Ogg, Bown, P. R., M.A. Kaminski, Kaminski, M.A., P.R. Bown, D.W. Haig, Haig, D. W., Kaminski, Michael A., Baumgartner, P.O., Mutterlose, J., McMinn, A., Ogg, J.G., A. McMinn   +21 more
core   +1 more source

Oligocene turbidite fans of the Dukla Basin: New age data from the calcareous nannofossils and paleoenvironmental conditions (Cergowa beds, Polish–Slovakian borderland)

Geologica Carpathica, 2019
Calcareous nannofossils found in the Cergowa beds of the Dukla and Fore-Dukla tectonic units in the Outer Carpathians indicate a time of deposition in the range of the NP23–NP24 nannoplankton zones of the Lower Oligocene.
Pszonka Joanna, Žecová Katarína, Wendorff Marek   +2 more
doaj   +1 more source