Results 21 to 30 of about 6,285 (211)

CENOZOIC MICROFOSSIL (FORAMINIFERA AND CALCAREOUS NANNOFOSSILS) ASSEMBLAGES FROM THE SUBSURFACE MAGALLANES BASIN, TIERRA DEL FUEGO ISLAND, CHILE

Publicación Electrónica de la Asociación Paleontológica Argentina, 2021
Foraminifera and calcareous nannofossils from washed drill-cuttings of three wells in the Chilean sector of the Magallanes Basin were studied. This contribution aims to identify, characterize and illustrate microfossil assemblages throughout the Cenozoic
Jens Michael Thissen, Juan Pablo Pérez Panera   +1 more
doaj   +1 more source

The Jurassic/Cretaceous boundary and high resolution biostratigraphy of the pelagic sequences of the kurovice section (Outer Western Carpathians, the northern Tethyan margin) [PDF]

, 2019
Microfacies and high resolution studies at the Kurovice quarry (Czech Republic, Outer Western Carpathians) on calpionellids, calcareous and non-calcareous dinoflagellate cysts, sporomorphs and calcareous nannofossils, aligned with paleomagnetism, allow ...
Elbra, Tiiu, Reháková, Daniela, Schnabl, Petr, Skupien, Petr, Svobodová, Andrea, Svobodová, Marcela, Švábenická, Lilian   +6 more
core   +1 more source

The calcareous nannofossils and magnetostratigraphic results from the Upper Tithonian-Berriasian of Feodosiya region (Eastern Crimea) [PDF]

, 2019
This article is concerned with nannofossil study of Tithonian-Berriasian sediments of Eastern Crimea. The NJT 16, NJT 17a, NJT 17b, NKT, and NK 1 nannofossil zones were determined. The occurrence of Nannoconus kamptneri minor, one of the potential marker-
Arkadiev, V., Baraboshkin, E., Concheyro, Graciela, Guzhikov, A., Lescano, Marina Aurora   +4 more
core   +1 more source

NANNOFOSSIL EVENTS AND STRATIGRAPHY OF THE ILAM FORMATION IN ZAGROS (SW IRAN)

Rivista Italiana di Paleontologia e Stratigrafia, 2014
Exploration studies of Cretaceous system in the Zagros region are very important due to the presence large hydrocarbon fields like the Ab-Teymur oilfield.
SAEEDEH SENEMARI, MARYAMNAZ BAHRAMMANESH TEHRANI, FATEMEH MOHAMMADI   +2 more
doaj   +1 more source

High-precision U-Pb ages in the early Tithonian to early Berriasian and implications for the numerical age of the Jurassic-Cretaceous boundary [PDF]

, 2019
The numerical age of the Jurassic-Cretaceous boundary has been controversial and difficult to determine. In this study, we present high-precision U-Pb geochronological data around the Jurassic-Cretaceous boundary in two distinct sections from different ...
Aguirre-Urreta, Maria Beatriz, Concheyro, Graciela, Lena, Luis, Lescano, Marina Aurora, López Martínez, Rafael, Naipauer, Maximiliano, Pimentel, Márcio, Ramos, Victor Alberto, Samankassou, Elias, Schaltegger, Urs, Vennari, Verónica Vanesa   +10 more
core   +1 more source

Insights From New Age Constraints and Sediment Volumes From the Austrian Northern Alpine Foreland Basin [PDF]

, 2019
Detailed characterization of variations in sediment architecture, flux, and transport processes in peri-orogenic basins offers insights into external climatic or tectonic forcings.
Auer, Gerald, Bernhardt, Anne, Fischer, Gero, Grunert, Patrick, Hülscher, Julian   +4 more
core   +1 more source

CALCAREOUS NANNOFOSSILS BIOSTRATIGRAPHY OF JADDALA FORMATION IN WELL (AJEEL-10), CENTRAL IRAQ

Bulletin of the Iraq Natural History Museum, 2021
A detailed systematic study of calcareous nannofossils was carried out for the Jaddala Formation in (Aj-10) well, Central Iraq. Seventy one species belong to twenty four genera of calcareous nannofossils were identified including sixty two of them were ...
Israa Sabah Al-Nuaimi, Omar Ahmed Al-Badrani   +1 more
doaj   +1 more source

Textural variations in Neogene pelagic carbonate ooze at DSDP Site 593, southern Tasman Sea, and their paleoceanographic implications [PDF]

, 2004
Changes in Neogene sediment texture in pelagic carbonate-rich oozes on the Challenger Plateau, southern Tasman Sea, are used to infer changes in depositional paleocurrent velocities.
Backman J., Bennett A. F., Berger W. H., Berggren W. A., Boersma A., Bohrmann G., Carter L., Carter R. M., Caulet J‐P., Crundwell M. P., Drewry D. J., Elmstrom K. M., Folk R. L., Gardner J. V., Gardner J. V., Gorsline D. S., Head P. S., House M. A., Howe J. A., Kennett J. P., Lohman W. H., Lyle M., Marshall P., Martínez J. I., McCave I. N., Morgans H. E. G., Mycke B., Nelson C. S., Nelson C. S., Nelson C. S., Nelson C. S., Nelson C. S., Oser R. K., Raffi I., Rio D., Robert C., Schlich R., Shackleton N. J., Shackleton N. J., Stanton B. R., Stein R., Sutherland F. L., Takayama T., Varney M., Wood R. A., Wright J. D.   +45 more
core   +2 more sources

Data report: late Miocene to early Pliocene coccolithophore and foraminiferal preservation at Site U1338 from scanning electron microscopy [PDF]

, 2014
The late Miocene to early Pliocene carbonate-rich sediments recovered at Integrated Ocean Drilling Program (IODP) Site U1338 during the Expedition 320/321 Pacific Equatorial Age Transect (PEAT) program contain abundant calcareous nanno- and microfossils.
Drury, Anna Joy, John, Cédric, Lee, Geoffrey, Pennock, Gillian M.   +3 more
core   +1 more source

The equatorial Pacific High-Productivity Belt: Elements for a Synthesis of Deep Sea Drilling Project Leg 85 Resultspaleoceanography [PDF]

, 1985
Leg 85 of the Deep Sea Drilling Project operated in the eastern central Pacific in the region of the equatorial highproductivity belt. We recovered uppermost Eocene to Quaternary reference sections amenable to fine-scale stratigraphic and ...
Barron, John A., Mayer, Larry A., Theyer, Fritz, Thomas, Ellen   +3 more
core   +2 more sources