Results 51 to 60 of about 3,184 (221)

Contrasting Hydrosedimentary Dynamics in Two Mediterranean Watersheds: Insights From Flood Hydrograph Decompositions

open access: yesHydrological Processes, Volume 40, Issue 6, June 2026.
This paper highlights the role of groundwater inputs to the river system during flood events in diluting suspended sediment concentration, in two small badland catchments with contrasting vegetation cover. The findings underline the importance of isolating the surface runoff component to better understand and prioritise hydrosedimentary processes ...
Ophélie Fischer   +4 more
wiley   +1 more source

FOSSILIZATION OF AMMONITES AND SEDIMENTARY EVENTS IN DEEP ENVIRONMENTS OF CARBONATE PLATFORM (HIGHEST MIDDLE TO LOWEST UPPER OXFORDIAN, IBERIAN RANGE, SPAIN)

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 2004
In the Ricla area (Zaragoza, Aragonese Branch of the Iberian Range), at the top of the Yátova Formation, grey-reddish wackestone limestones grade into yellow-green siliciclastic limestones of the Aldealpozo Formation.
SIXTO R. FERNÁNDEZ-LÓPEZ   +1 more
doaj   +1 more source

The palaeogeographic outlines of the Caucasus in the Jurassic: The Caucasian Sea and the Neotethys Ocean [PDF]

open access: yesGeološki Anali Balkanskoga Poluostrva, 2006
The Caucasian Sea, fringing the northern margin of the Jurassic Neotethys Ocean, largely covered the Caucasus. Continental, shallow-marine and deep-marine palaeoenvironments delineate palaeogeographic outlines for three significant time slices: the Late ...
Ruban Dmitry A.
doaj   +1 more source

Lessons Learned From Using Simple Supervised Learning Tools on Small‐Ensemble Data—Applicability to Tunnel Design and Monitoring

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 50, Issue 8, Page 3397-3411, 10 June 2026.
ABSTRACT Integrating interdisciplinary strategies with artificial intelligence (AI), particularly machine learning (ML), is an effective way of addressing urgent engineering challenges. Therefore, a thorough evaluation of existing methodologies is essential, taking into account their respective strengths, limitations and opportunities.
Lina‐María Guayacán‐Carrillo   +2 more
wiley   +1 more source

Correlation of reefal Oxfordian episodes and climatic implications in the eastern Paris Basin (France)

open access: yes, 2006
International audienceOxfordian reefal episodes of Lorraine and Burgundy have a long time been considered as contemporaneous. Biostratigraphic data and sequential evolutions peculiar to each region indicate their structural autonomy during Oxfordian ...
Ferry, S.   +6 more
core   +1 more source

Multi-scale modelling of gas flow in nanoscale pore space with fractures

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
In this work, a multi-scale pore network with fractures is developed against experimental data in a wide range of degrees of water saturation. The pore network is constructed based on the measured microstructure information at several length scales.
Qingrong Xiong   +2 more
doaj   +1 more source

Late Jurassic Carbon Isotope Excursion (Middle Oxfordian Event) Paces With Astronomical Forcing in the Northwestern Tethys

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 6, June 2026.
Abstract Marine carbonate carbon isotopes (δ13C), over orbital to multi‐million‐year timescales, provide critical insight into the carbon cycle connecting Earth's atmosphere, lithosphere, hydrosphere and biosphere. However, the influence of astronomical forcing on deep time carbon cycle dynamics remains poorly constrained.
Deyan Zhang   +4 more
wiley   +1 more source

Ostracods from the Upper Jurassic (Oxfordian-Tithonian) of southern Germany

open access: yes, 2000
. At present the ostracod faunas from the Upper Jurassic of southern Germany are incompletely known due to the absence of detailed studies. This preliminary systematic investigation has yielded 46 species from 25 genera, of which 23 species are left in ...
M. E. Schudack, U. Schudack
core   +1 more source

The Jurassic of North-East Greenland: Jurassic dinoflagellate cyst stratigraphy of Hold with Hope, North-East Greenland [PDF]

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2004
Dinoflagellate cysts of the Middle–Upper Jurassic succession on northern Hold with Hope have been studied in order to establish a biostratigraphic framework and to date the succession.
Piasecki, Stefan   +3 more
doaj  

An exquisitely preserved young iguanodontian from the Upper Jurassic of Tanzania sheds light on skeletal fusion patterns within Archosauria

open access: yesPapers in Palaeontology, Volume 12, Issue 3, May/June 2026.
Abstract Dysalotosaurus lettowvorbecki (Ornithopoda, Dinosauria) is a small‐sized dryosaurid iguanodontian known from various isolated remains collected from the Tendaguru Formation (Upper Jurassic, Tanzania). Micro‐computed tomography of a small individual encased in a block offered a unique opportunity to describe c.
Riccardo Rocchi   +3 more
wiley   +1 more source

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