Results 31 to 40 of about 27,326 (269)

Ostracods biostratigraphy of the Oligocene-Miocene carbonate platform in the Northeastern Amazonia coast and its correlation with the Caribbean region

Journal of South American Earth Sciences, 2017
Anna Andressa Evangelista Nogueira, Afonso Cesar Rodrigues Nogueira   +1 more
exaly   +2 more sources

Middle Permian ostracods (Crustacea) from the Guadalupe Mountains, West Texas, USA

European Journal of Taxonomy, 2021
Middle Permian (Guadalupian) ostracods are described from the Williams Ranch Member of the Cutoff Formation (Roadian) and the McKittrick Canyon Member of the Bell Canyon Formation (Capitanian) from two sections exposed in Culberson County, Guadalupe ...
Anaëlle Tarnac, Marie-Béatrice Forel, Galina Nestell, Merlynd Nestell, Sylvie Crasquin   +4 more
doaj   +1 more source

Ostracods of the Ordovician–Silurian boundary beds: Jūrmala core (Latvia) and its implications for Baltic stratigraphy [PDF]

Estonian Journal of Earth Sciences, 2020
Ostracods of the Ordovician and Silurian transition interval in the JÅ«rmala section, Latvia, were studied. The diverse pre-Hirnantian ostracod assemblage is replaced by the Harpabollia harparum association that has been recorded across the Baltoscandian
Tõnu Meidla, Karin Truuver, Oive Tinn, Leho Ainsaar   +3 more
doaj   +1 more source

Lake sedimentological and ecological response to hyperthermals : Boltysh impact crater, Ukraine [PDF]

, 2017
Acknowledgements Initial drilling of the Boltysh meteorite crater was funded by Natural Environment Research Council (NERC) grant NE/D005043/1. The authors are extremely grateful to the valuable scientific contributions of S. Kelley and I. Gilmour.
Andrews, Steven D., Ebinghaus, Alena, Jolley, David W., Kemp, David B.   +3 more
core   +1 more source

Mid-Late Quaternary Fluvial Archives near the Margin of the MIS 12 Glaciation in Southern East Anglia, UK: Amalgamation of Multi-Disciplinary and Citizen-Science Data Sources

Quaternary, 2022
This paper presents an updated geological reconstruction of the Quaternary evolution of the River Thames at its downstream extremities, close to the North Sea coast, based on new data from multi-disciplinary and citizen-science sources. In this area, the
Peter Allen, David R. Bain, David R. Bridgland, Paul Buisson, Jan-Pieter Buylaert, Rachel Bynoe, William H. George, B. Andrew Haggart, David J. Horne, Ellen-May Littlewood, Alan R. Lord, Anna C. March, Ian Mercer, Rosalind Mercer, Andrew S. Murray, Kirsty E. H. Penkman, Richard C. Preece, John Ratford, Danielle C. Schreve, Andrew J. R. Snelling, Kadri Sohar, John Whittaker, Mark J. White, Tom S. White   +23 more
doaj   +1 more source

The Evolution of an Ancient Coastal Lake (Lerna, Peloponnese, Greece)

Quaternary, 2022
Degradation of coastal environments is an issue that many areas in Europe are facing. In the present work, an ancient coastal lake wetland is investigated, the so-called Lake Lerna in NE Peloponnese, Greece. The area hosted early agricultural populations
Efterpi Koskeridou, Danae Thivaiou, Christos Psarras, Evangelia Rentoumi, Niki Evelpidou, Giannis Saitis, Alexandros Petropoulos, Chryssanthi Ioakim, George Katopodis, Konstantinos Papaspyropoulos, Spyros Plessas   +10 more
doaj   +1 more source

Ostracods as ecological and isotopic indicators of lake water salinity changes: the Lake Van example

Biogeosciences, 2019
. Ostracods are common lacustrine calcitic microfossils. Their faunal assemblage and morphological characteristics are important ecological proxies, and their valves are archives of geochemical information related to palaeoclimatic and palaeohydrological
Jeremy McCormack, F. Viehberg, D. Akdemir, A. Immenhauser, O. Kwiecien   +4 more
semanticscholar   +1 more source

Ostracod Response to a Major Middle Jurassic Sea-Level Fall: A Case Study from Southern Tunisia (North Gondwana) with Implications on Regional Stratigraphy and Palaeoenvironmental Reconstruction

Geosciences, 2022
Marginal-marine to non-marine ostracod assemblages from the Bajocian (Mid-Jurassic) of southern Tunisia, precisely from the Krachoua Formation at the Kef El Anneba section near the Beni Kheddache area, are here described and tested for their utility to ...
Khaled Trabelsi, Lassad Tiss, Benjamin Sames, Yassine Houla, Amine Hanini, Faycel Elferhi, Ahmed Skanji, Fekri Kamoun, Mohamed Faouzi Zagrarni, Michael Wagreich   +9 more
doaj   +1 more source

Synthesis and Characterization of Zero-Valent Iron Nanoparticles, and the Study of Their Effect against the Degradation of DDT in Soil and Assessment of Their Toxicity against Collembola and Ostracods

ACS Omega, 2019
Of late, novel magnetic nanomaterials have drawn worldwide attention because of the uniqueness in their properties and uses. In our studies, we have prepared nearly monodisperse zero-valent iron nanoparticles (nZVIs) of diameter of less than 60 nm in ...
Bhanja Kishore Khuntia, M. Anwar, T. Alam, M. Samim, Mithlesh Kumari, I. Arora   +5 more
semanticscholar   +1 more source

Microfossils in the Ordovician erratic boulders from Southwestern Finland [PDF]

Bulletin of the Geological Society of Finland, 1995
Chitinozoans, ostracods and acritarchs found in four glacially transported limestone boulders from the south-western coast of Finland have been studied in order to test the usefulness of these microfossil groups in age determinations. Also rare specimens
J. Nõlvak, T. Meidla, A. Uutela
doaj   +1 more source