Results 101 to 110 of about 64,380 (320)

Age and orbital forcing in the upper Silurian Cellon section (Carnic Alps, Austria) uncovered using the WaverideR R package

open access: yesFrontiers in Earth Science
The type-Silurian Cellon section in the Carnic Alps in Austria underpins much of the current Silurian conodont zonations, forming the basis for the Silurian timescale.
Michiel Arts   +5 more
doaj   +1 more source

Numerical Simulation Based Targeting of the Magushan Skarn Cu-Mo Deposit, Middle-Lower Yangtze Metallogenic Belt, China [PDF]

open access: yes, 2019
The Magushan Cu–Mo deposit is a skarn deposit within the Nanling–Xuancheng mining district of the Middle-Lower Yangtze River Metallogenic Belt (MLYRMB), China.
Dai, Wenqiang   +8 more
core   +2 more sources

Fracture characteristics and stress disturbance analysis for well optimization of Silurian in Shunbei area, central Tarim Basin

open access: yesShiyou shiyan dizhi
The complex tectonic stress in the Shunbei area of the central Tarim Basin results in varied patterns of multilayered fractures. When drilling into the Silurian fracture zone and the formation pressure is lower than the drilling fluid column pressure ...
Laiyuan WANG   +4 more
doaj   +1 more source

Interstipe webbing in the Silurian graptolite Cyrtograptus murchisoni and its palaeobiological significance. [PDF]

open access: yes, 1995
Although it has long been recognized that the Graptoloidea constituted a diverse group of planktic organisms, the precise hydrodynamics of the various colony morphotypes has been a source of debate.
Underwood, Charlie J.
core  

The development of the Silurian trilobite Aulacopleura koninckii reconstructed by applying inferred growth and segmentation dynamics: A case study in paleo-evo-devo [PDF]

open access: yes, 2017
Fossilized growth series provide rare glimpses into the development of ancient organisms, illustrating descriptively how size and shape changed through ontogeny.
Fusco, Giuseppe   +3 more
core   +2 more sources

High palaeolatitude (Hodh, Mauritania) recovery of graptolite faunas after the Hirnantian (end Ordovician) extinction event [PDF]

open access: yes
Marine shales directly overlying lower Hirnantian (uppermost Ordovician) glacially related sediments in Mauritania (North-West Africa) have produced a rich graptolite fauna spanning the Ordovician-Silurian boundary in an area of high palaeolatitude.
Deynoux, M.   +2 more
core  

Population structure of graptolite assemblages [PDF]

open access: yes, 1998
Graptolite rhabdosomes display a diverse suite of morphologies. The range of morphotypes present within most moderate to high diversity assemblages from the Ordovician and Silurian is similar, despite the different taxonomic composition of the faunas at ...
Brenchley   +27 more
core   +1 more source

Probing Pedogenetic Imprints and Functional Properties of Moroccan Clayey Materials Through FFC NMR Relaxometry

open access: yesMagnetic Resonance in Chemistry, Volume 63, Issue 10, Page 796-809, October 2025.
Fast Field Cycling NMR relaxometry reveals how pedogenetic pathways imprint distinct dynamic signatures in Moroccan clays, shaping their microstructural heterogeneity and technological properties. ABSTRACT Understanding how soil formation processes influence the microstructure and the dynamic behavior of clay‐rich materials is essential for both ...
Paola Bambina   +9 more
wiley   +1 more source

The eoorthid brachiopod Apheoorthina in the Lower Ordovician of NW Argentina and the dispersal pathways along western Gondwana [PDF]

open access: yes, 2016
The eoorthid brachiopod Apheoorthina is reported for the first time from the Lower Ordovician of NW Argentina. It is represented by a species similar to A.
Benedetto, Juan Luis Arnaldo   +1 more
core   +2 more sources

The First Three‐Dimensional Electrical Resistivity Model of the Lithosphere Beneath Britain

open access: yesJournal of Geophysical Research: Solid Earth, Volume 130, Issue 10, October 2025.
Abstract Magnetotelluric data provide unique information to study the electrical resistivity of the Earth's lithosphere, enabling studies of geological structures, tectonic processes, resource exploration, and hazard monitoring. Here, we present the first fully three‐dimensional (3D) electrical resistivity model of the deep lithosphere beneath Britain (
Aideliz M. Montiel‐Álvarez   +5 more
wiley   +1 more source

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