Results 51 to 60 of about 6,285 (211)

Variations of porosity in calcareous sediments from the Ontong Java Plateau [PDF]

, 1993
Based on index properties measurements made on board the JOIDES Resolution, we studied porosity changes with depth in the fairly homogeneous deep-sea calcareous sediments cored during Ocean Drilling Program Leg 130 on the Ontong Java Plateau.
Bassinot, Frank, Marsters, Janice C., Mayer, Larry A., Wilkens, Roy H.   +3 more
core   +4 more sources

DINOFLAGELLATE CYSTS AND CALCAREOUS NANNOFOSSILS FROM THE UPPER CRETACEOUS SARACENO FORMATION (CALABRIA, ITALY): IMPLICATIONS ABOUT THE HISTORY OF THE LIGURIDE COMPLEX

Rivista Italiana di Paleontologia e Stratigrafia, 2003
Organic-walled dinoflagellate cysts and calcareous nannofossils recovered from the turbidites of the Saraceno Formation outcropping in the type area (north-eastern Calabria, Italy) are presented. They provide new information about the age of the Saraceno
STEFANO TORRICELLI, MARIA ROSA AMORE
doaj   +1 more source

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

Publicación Electrónica de la Asociación Paleontológica Argentina, 2020
Foraminifera and calcareous nannofossils were studied in washed drill-cuttings of three wells from the Chilean sector of the Magallanes Basin. This contribution aims to identify, characterize and illustrate microfossil assemblages throughout the ...
Jens Michael Thissen, Juan Pablo Pérez Panera   +1 more
doaj   +1 more source

THE DISTRIBUTION RANGE OF CALCAREOUS NANNOFOSSIL SPECIES RETICULOFENESTRA PSEUDOUMBILICUS IN THE MIOCENE: AN EXAMPLE OF ECOLOGICAL INFLUENCE ON EVOLUTIONARY DEVELOPMENT

Rivista Italiana di Paleontologia e Stratigrafia, 2023
Reticulofenestra pseudoumbilicus is a Neogene calcareous nannofossil species whose highest stratigraphic occurrence (Top) is a reliable biohorizon in the Pliocene, calibrated at 3.82 Ma.
Amalia Notaro, ISABELLA RAFFI, DANIELE REGHELLIN   +2 more
doaj   +1 more source

First record of Gitolampas subrotundus (Cotteau, 1856) (Echinoidea) from the Late Paleocene of Iran [PDF]

Geološki Anali Balkanskoga Poluostrva, 2019
In this paper we present the first record of well preserved specimens of Gitolampas subrotundus (Cotteau, 1856) from the Late Paleocene of Iran (Jorasan Razavi county, northeast Iran).
Carrasco Jose Francisco, Taherpour-Khalilabad Morteza, Taheri Jafar, Ahmadi-Kooshki Maryam, Majidifard Mahmoud Reza   +4 more
doaj   +1 more source

Nanofósiles calcáreos paleógenos y biostratigrafía para dos pozos en el este de la Cuenca Austral, Patagonia, Argentina [PDF]

, 2013
Calcareous nannofossils from two boreholes (Campo Bola and Sur Río Chico) in the subsurface of eastern Austral Basin, Santa Cruz Province, Argentina, allowed the identification of Early to Middle Paleocene, Early to Middle Eocene and Late Eocene to Early
Perez Panera, Juan Pablo
core   +2 more sources

Biostratigrafie spodní křídy manínské jednotky (lom Butkov, Strážovské vrchy, Západní Karpaty) [PDF]

, 2003
This paper is a continuation of systematic stratigraphical research of Lower Cretaceous sequence of the Manín Unit excavated in the Butkov quarry. Calcareous deposits are significant especially by richness of ammonites.
Halásová, Eva, Reháková, Daniela, Skupien, Petr, Vašíček, Zdeněk   +3 more
core   +1 more source

Calcareous nannofossil age constraints on Miocene flysch sedimentation in the Outer Dinarides (Slovenia, Croatia, Bosnia-Herzegovina and Montenegro) [PDF]

, 2008
Flysch deposits are associated with the Outer Dinaride nappe front. They overlie Eocene platform carbonate to bathyal marl successions that subsequently cover Cretaceous platform carbonates of Apulia and the Dinaride nappes.
Babić, Babić, Babić, Babić, Babić, Babić, Bellas, Benić, Bignot, Bown, Buser, Báldi-Beke, Cadet, Chorowicz, Crnjaković, de Capoa, de Capoa, de Capoa, de Capoa, de Capoa, de Capoa, de Kaenel, Engel, Grubić, Herak, Jelaska, Jerković, Juračić, Kohl, Košir, Krašeninnikov, Kulka, Luković, Magdalenić, Mantovani, Marinčić, Marjanac, Marjanac, Marjanac, Mikes, Mrinjek, Muldini-Mamužić, Muldini-Mamužić, Olszewska, Oszczypko, Pamić, Pavlovec, Pavlovec, Pavšič, Pavšič, Pavšič, Piccoli, Picha, Pomerol, Prelogović, Pribičević, Puškarić, Radoičić, Radoičić, Schubert, Skaberne, Stradner, Tari, Tari-Kovačić, Tomljenović, Tunis, Varga, Varga, Young, Zupanič, Čanović, Šikić, Šikić, Živković   +73 more
core   +1 more source

Site 1222

, 2002
Site 1222 (13°48.98´N, 143°53.35´W; 4989 meters below sea level [mbsl]; Fig. F1) forms a south-central component of the 56-Ma transect drilled during Leg 199 and is situated ~2° south of the Clarion Fracture Zone in typical abyssal hill topography.
Backman, J., Busch, W.H., Coxall, H.K., Faul, K., Gaillot, P.A., Hovan, S.A., Janecek, T.R., Knoop, P., Kruse, S., Lanci, L., Lear, C.H., Lyle, M., Moore, T.C., Nigrini, C.A., Nishi, H., Nomura, R., Norris, R.D., Parés, J.M., Pälike, H., Quintin, L., Raffi, I., Rea, B.R., Rea, D.K., Steiger, T.H., Tripati, A.K., Vanden Berg, M.D., Wade, B.S., Wilson, P.A.   +27 more
core   +1 more source

On the Cretaceous origin of the Order Syracosphaerales and the genus Syracosphaera [PDF]

, 2017
New scanning electron microscope observations of unadulterated calcareous nannofossil assemblages on lamina surfaces of Cretaceous Tanzania Drilling Project sediments reveal high diversity in the < 3 μm size-range and high abundances of small and ...
Bown, PR, Lees, JA, Young, JR
core   +1 more source