Results 61 to 70 of about 39,707 (262)
Biostratigraphic Study of the Gurpi Formation Based on Planktonic Foraminifera In Lar Area (Kuh-e-kurdeh Section) [PDF]
, 2009 The study of planktonic foraminifera of the Gurpi formations at Lar area (Kuh-e-kurdeh section) enables me to find the most standard biozones defined in mediterranean regions, especially Tethysian domain. Five biozones were determined.
Ali Mandanizadeh +2 more
core +2 more sources
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.Abstract Obtaining in situ samples from active subduction systems is critical for assessing the material properties and geological evolution of rocks and sediments that host plate boundary deformation, and advancing our understanding of the processes that lead to fault locking and rupture.
P. H. Cornard +8 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
Climate warming, euxinia and carbon isotope perturbations during the Carnian (Triassic) Crisis in South China [PDF]
, 2016 The Carnian Humid Episode (CHE), also known as the Carnian Pluvial Event, and associated biotic changes are major enigmas of the Mesozoic record in western Tethys.
Bond, D.P.G. +8 more
core +2 more sources
Paleoceanography and Paleoclimatology, Volume 40, Issue 5, May 2025.Abstract Predictions for the southwestern US with warming often suggest increased aridity. We investigate the sedimentary record of the Miocene Climate Optimum and Transition (MCO and MCT; ∼17–14 Ma) in northern New Mexico to understand the impact of warmer global temperatures and higher pCO2 on southwestern US hydroclimate. The MCO and MCT comprised a
Siânin Spaur +7 more
wiley +1 more source
Sample Size for Concurrent Species Detection in a Species-Rich Assemblage [PDF]
arXiv, 2018 Monitoring the distribution of microfossils in stratigraphic successions is an essential tool for biostratigraphic, evolutionary and paleoecologic/paleoceanographic studies. To estimate the relative abundance (%) of a given species, it is necessary to estimate in advance the minimum number of specimens to be used in the count (n).
arxiv
Carnets de Géologie, 2005 The study of acritarchs in Russia was initiated by Naumova and Timofeev in the early 50s. Their initial results showed the high potential of these microfossils for biostratigraphy and was followed by a remarkable degree of research activity in the 70s ...
Raevskaya Elena
doaj
Evaluating migration hypotheses for the extinct Glyptotherium using ecological niche modeling
Ecography, Volume 2025, Issue 5, May 2025.The formation of the Isthmus of Panama allowed for migrations between the once separated continents of North and South America. This led to one of the greatest documented interchanges of biota in Earth history, wherein an array of species across many groups migrated between the continents.
Katherine M. Magoulick +4 more
wiley +1 more source
Journal of Mathematical and Fundamental Sciences, 2019 Sari. Analisis stratigrafi sikuen memerlukan data yang menyeluruh dari berbagai disiplin ilmu geologi, termasuk biostratigrafi. Secara hipotesis, biostratigrafi (foraminifera) dapat dijadikan alat untuk mengidentifikasi sikuen.
Khoiril Anwar M.
doaj
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 +4 more
doaj +1 more source