Results 61 to 70 of about 8,079 (230)

INTEGRATED STRATIGRAPHY (RADIOLARIANS AND CALCAREOUS NANNOFOSSILS) OF THE JURASSIC SILICEOUS SEDIMENTS FROM MONTE KUMETA (WESTERN SICILY, ITALY)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2004
Integrated analyses of Calcareous Nannofossils and Radiolarians were carried out in the Monte Kumeta (Sicily) to better define the age of the siliceous sediments (Membro Radiolaritico Intermedio = MRI), which results to be early-middle Bathonian to early
MARCO CHIARI   +2 more
doaj   +1 more source

Real‐Time Monitoring of Carbon Steel Corrosion Under High‐Dose Gamma Irradiation Using Electrical Resistance Sensors Designed for Deep Geological Repository of Radioactive Waste

open access: yesMaterials and Corrosion, Volume 77, Issue 1, Page 46-54, January 2026.
Electrical (ER) corrosion sensors made of AISI 1010 carbon steel are tested under gamma irradiation (0.25–1.00 MGy) for deep geological radioactive waste disposal applications. Despite the high dose rates of this study, ER sensors remain reliable, showing no significant loss in measurement performances.
Johan Becker   +3 more
wiley   +1 more source

On the peritidal cycles and their diagenetic evolution in the Lower Jurassic carbonates of the Calcare Massiccio Formation (Central Apennines) [PDF]

open access: yes, 2015
This paper shows the environmental changes and high-frequency cyclicity recorded by Lower Jurassic shallow- water carbonates known as the Calcare Massiccio Formation which crop out in the central Apennines of Italy.
Brandano, Marco   +3 more
core   +1 more source

Caenogastropods and heterobranch gastropods from the Hettangian deposits of Luxembourg: palaeobiogeography and Early Jurassic faunal recovery in the western Tethys

open access: yesPapers in Palaeontology, Volume 12, Issue 1, January/February 2026.
Abstract We describe the Hettangian Caenogastropoda and Heterobranchia of the Luxembourg Sandstone Formation, a wedge of clastic sediments deposited along the eastern margin of Paris Basin during the Early Jurassic. Five new genera and 11 new species are erected: Bourguetia bipartita sp. nov., Globularia delsatei sp. nov., Oonia feidtorum sp.
Stefano Monari   +3 more
wiley   +1 more source

El volcanismo jurásico superior de la Formación Río Damas-Tordillo (33°-35,5°S): antecedentes su sobre petrogénesis, cronología, proveniencia e implicancias tectónicas [PDF]

open access: yes, 2014
Los depósitos continentales y volcánicos de la Formación Rio Damas-Tordillo, Jurásico Superior, representan un período restringido de sedimentación continental dentro del registro mayormente marino de la Cuenca Neuquina.
Calderón, Sergio   +7 more
core   +2 more sources

Jurassic tracks and HS2: a twenty‐first century journey

open access: yesGeology Today, Volume 41, Issue 6, Page 234-243, November/December 2025.
The biggest UK railway construction site since the nineteenth century has exposed a near‐complete time slice through the entire Jurassic succession of central England. This is yielding a wealth of stratigraphical, palaeobiological and palaeoenvironmental data that is otherwise generally poorly exposed at the present day.
Jonathan D. Radley   +5 more
wiley   +1 more source

Time-dependent behaviour of the Callovo-Oxfordian claystone-concrete interface

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
In the context of the Cigéo project, the French National Radioactive Waste Management Agency (Andra) is studying the behaviour of a deep geological facility for radioactive waste deposit in the Callovo-Oxfordian (COx) claystone.
Eleni Stavropoulou   +3 more
doaj   +1 more source

Investigating the swelling pressure of compacted crushed-Callovo-Oxfordian claystone [PDF]

open access: yesPhysics and Chemistry of the Earth, Parts A/B/C, 2011
Abstract This paper presents an experimental study on the swelling pressure of heavily compacted crushed Callovo-Oxfordian (COx) claystone at a dry unit mass ρd = 2.0 Mg/m3 using four different methods: constant-volume, swell-reload, zero-swell and adjusted constant-volume method. Results show that the swelling pressure varies in the range of 1–5 MPa
Tang, Chaosheng   +5 more
openaire   +2 more sources

Oxford: W.J. Arkell’s coral city

open access: yesGeology Today, Volume 41, Issue 6, Page 251-259, November/December 2025.
The city of Oxford, in south‐central England, is partly surrounded by hills on which coral‐rich limestones crop out. The coral developments constitute small reefs and formed during a widely documented Late Jurassic (mid‐Oxfordian) warming episode, near the northern limit of reef growth at that time.
Jonathan D. Radley, Robert A. Coram
wiley   +1 more source

Coupled THM analysis of long-term anisotropic convergence in the full-scale micro tunnel excavated in the Callovo-Oxfordian argillite [PDF]

open access: yes, 2019
The main purpose of this paper is to analyse the convergence measurements of the ALC1604 in situ heating test carried out in the Callovo-Oxfordian claystone formation (COx) in the Meuse/Haute-Marne underground research laboratory (MHM URL).
Bumbieler, F.   +4 more
core   +1 more source

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