Results 71 to 80 of about 35,895 (262)

Microfacies and geochemistry of Kimmeridgian limestone strata in the Eastern Pontides (North‐East Turkey): Palaeoclimate and palaeoenvironmental influence on organic matter enrichment

The Depositional Record, Volume 11, Issue 1, Page 4-21, February 2025.
Kimmeridgian limestone (KL) strata are one best example of a peritidal carbonate that records palaeogeographic and palaeoclimate conditions in Eastern Pontide, Eastern Black Sea region. The KL strata are represented by well‐preserved dark grey lime‐mudstones that archive important geochemical proxy.
Merve Özyurt, M. Ziya Kırmacı
wiley   +1 more source

STRATIGRAPHY OF THE LOWER OLIGOCENE NUMMULITIC LIMESTONES, NORTH OF SONQOR (NW IRAN)

Rivista Italiana di Paleontologia e Stratigrafia, 2018
The lower Oligocene hyaline and porcellaneous larger foraminifera of a carbonate platform setting, north of Sonqor, were studied for high-resolution biostratigraphy in the context of European standard zonation (Shallow Benthic Zones).
MOHSEN YAZDI-MOGHADAM, ABBAS SADEGHI, MOHAMMAD HOSSEIN ADABI, ALIREZA TAHMASBI   +3 more
doaj   +1 more source

Lithostratigraphy, biostratigraphy, and stable-isotope stratigraphy of cores from ODP Leg 105 site surveys, Labrador Sea and Baffin Bay [PDF]

, 1989
Trigger weight (TWC) and piston (PC) cores obtained from surveys of the three sites drilled during Ocean Drilling Program (ODP) Leg 105 were studied in detail for benthic foraminiferal assemblages, total carbonate (all sites), planktonic foraminiferal ...
Baki, V., de Vernal, A., Hillaire-Marcel, C., MacKinnon, K. D., Mayer, Larry A., Medioli, F. S., Mudie, P. J., Scott, D. B.   +7 more
core   +2 more sources

The Early–Middle Miocene climate as reflected by a mid‐latitude lacustrine record in the Ebro Basin, north‐east Iberia

The Depositional Record, Volume 11, Issue 1, Page 95-120, February 2025.
Climate variations are reflected in a mainly lacustrine succession spanning from 17.73 to 14.0 Ma in north‐east Iberia, thus encompassing the Miocene Climatic Optimum. The δ18O and δ13C composition of an array of carbonate facies and marl samples, complemented with sedimentological analysis and the illite crystallinity index and magnetic susceptibility
Concha Arenas, Cinta Osácar, Francisco Javier Pérez‐Rivarés, Joaquín Bastida, Andrés Gil, Luis F. Auqué   +5 more
wiley   +1 more source

Conodont biostratigraphy in the Middle–Upper Ordovician boundary beds of Estonia [PDF]

Estonian Journal of Earth Sciences, 2008
Conodonts of the uppermost Uhaku, the Kukruse, and the lower Haljala stages (uppermost Darriwilian and lower Sandbian) of Estonia are discussed. The distribution of conodonts within the Pygodus serra, P.
Viira, Viive
doaj  

The utility of deep-water agglutinated Foraminiferal acmes for correlating Eocene to Oligocene abyssal sediments in the North Atlantic and Western Tethys [PDF]

, 2005
Quantitative analysis of Deep-water Agglutinated Foraminifera (DWAF) assemblages from key ODP sites in the North Atlantic reveal the presence of stratigraphically-significant abundance maxima, that may be useful for correlating sedimentary sequences ...
Kaminski, M.A.
core  

Biostratigraphic and magnetostratigraphic synthesis of the Celebes and Sulu Seas, Leg 124 [PDF]

, 1991
During ODP Leg 124, late middle Eocene to Quaternary sediment sequences were recovered from 13 holes drilled at five sites in the Celebes and Sulu basins. Paleomagnetic measurements and biostratigraphic studies using calcareous nannofossils, planktonic
Hsu, V., Kaminski, M.A., Merrill, D., Müller, C.M., Nederbragt, A.J., Scherer, R.P., Shibuya, H., Shyu, J.-P.   +7 more
core   +1 more source

Cretaceous cyclic peritidal carbonates of the Apulia Carbonate Platform (Apulia, southern Italy) in a hierarchical sequence‐stratigraphic perspective: A case study from the Murge area (the Giovinazzo sea‐cliff section)

The Depositional Record, Volume 11, Issue 1, Page 328-353, February 2025.
Four different types of elementary sequences (condensed, catch‐down, catch‐up and give‐up) were recognised and interpreted in terms of relative sea‐level changes to reconstruct the relative sea‐level curve of the entire succession. The envelope of the reconstructed relative sea‐level curve was used to represent the long‐term accommodation change on the
Luigi Spalluto, Marco Petruzzelli, Luisa Sabato, Marcello Tropeano   +3 more
wiley   +1 more source

Lower Eocene sedimentary succession and microfossil biostratigraphy in the central northern Caucasus basin

Geologica Acta, 2020
The lower Eocene sediments from the classical Paleogene section exposed along the Kheu River, northern Caucasus, southern Russia are here studied. This ca. 50m thick succession is lithologically contrasting: the lower and upper parts are composed by soft
E. Shcherbinina, A. Iakovleva, Yu. Gavrilov , O. Golovanova, N. Muzylöv   +4 more
doaj   +1 more source

Crustal Structure and Tectonic Origin of Late Cretaceous Oceanic Crust and Adjacent Caribbean Large Igneous Province in the Colombian Basin

Geochemistry, Geophysics, Geosystems, Volume 26, Issue 2, February 2025.
Abstract The tectonic origin of the Caribbean Large Igneous Province (CLIP) and its adjacent oceanic crust in the Colombian Basin are examined using 3D seismic reflection mapping, regional gravity and magnetic data mapping, and a compilation of CLIP radiometric ages.
Juan Pablo Ramos, Paul Mann, Luis Carlos Carvajal‐Arenas   +2 more
wiley   +1 more source