Results 71 to 80 of about 211,290 (283)

Tectonic significance of changes in post-subduction Pliocene-Quaternary magmatism in the south east part of the Carpathian-Pannonian Region [PDF]

open access: yes, 2010
The south-eastern part of the Carpathian–Pannonian region records the cessation of convergence between the European platform/Moesia and the Tisza–Dacia microplate.
Alexandru Szakács   +112 more
core   +2 more sources

A Seismically Active Shear Zone in the Uppermost Mantle Beneath the Canadian Rockies

open access: yesGeophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Continental mantle earthquakes are uncommon but hold important clues for understanding lithospheric rheology. Few of these earthquakes (<10) have been documented in western North America, though it is likely more exist owing to difficulties in resolving focal depth for small earthquakes.
Sean J. Hutchings   +2 more
wiley   +1 more source

Rupture Cascade Initiated by Wastewater Disposal: Nucleation and Domino Effect of Canada's Largest Induced Earthquake

open access: yesGeophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract In 2022–2023, three local‐magnitude (ML) 4.8–5.6 earthquakes shook the Peace River oilsands area of Alberta, Canada. Previous studies statistically linked the seismicity to nearby disposal activities but lacked in‐depth investigation into triggering mechanisms, including subsurface fluid migration and earthquake interaction.
Wenhan Sun   +10 more
wiley   +1 more source

LONG-LIVED STRUCTURAL ENSEMBLES OF THE EAST EUROPEAN PLATFORM. ARTICLE 1. THE BASEMENT TECTONICS

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2018
General features of the basement tectonics of the East European platform (EEP) have been considered. The important role of the long-lived Paleoproterozoic tectonic zones has been noted.
S. Y. Kolodyazhny
doaj   +1 more source

Landscape responses to intraplate tectonism: Quantitative constraints from 10Be nuclide abundances

open access: yesEarth and Planetary Science Letters, 2007
Cosmogenic 10 Be concentrations in bedrock and alluvium combined with structural studies provide a novel approach for identifying neotectonic forcing of landscape evolution in mildly deforming continental interiors. Measured 10 Be concentrations in the Flinders Ranges indicate rapid and spatially variable rates of bedrock erosion in a catchment that ...
Quigley, Mark   +3 more
openaire   +2 more sources

Deformation of the Upper Oceanic Crust in the Outer Rise of the Sumatra Subduction Zone: Insights From P‐ and Doubly Converted S‐Wave Arrivals on Downward Continued Streamer Data

open access: yesGeophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract The structure and properties of mature upper oceanic plates may evolve through mechanisms such as magmatism, hydrothermal circulation, and faulting. However, high‐resolution constraints, especially those involving both P‐ and S‐waves, remain scarce, limiting our ability to detect these processes and assess their impacts on crustal properties ...
Anne Bécel   +3 more
wiley   +1 more source

A Comparison of the Magmatic Evolution of Pacific Intraplate Volcanoes: Constraints on Melting in Mantle Plumes

open access: yesFrontiers in Earth Science, 2019
The interaction of deep mantle plumes with lithospheric plates is one fundamental concept of plate tectonics. Based on observations mainly made on the Hawaiian volcanoes the compositional evolution of hotspot volcanoes is believed to reflect the ...
Karsten M. Haase   +2 more
doaj   +1 more source

A Miocene tectonic inversion in the Ionian Sea (Central Mediterranean): evidence from multi-channel seismic data [PDF]

open access: yes, 2011
It is widely accepted that the Central and Eastern Mediterranean are remnants of the Neo-Tethys. However, the orientation and timing of spreading of this domain remain controversial.
Anzidei   +247 more
core   +4 more sources

Automatic Earthquake Declustering Using the Nearest‐Neighbor Distance

open access: yesEarth and Space Science, Volume 13, Issue 1, January 2026.
Abstract In the widely adopted description of seismic occurrence, earthquakes are categorized as either background or triggered events. In this work, we present a fully automated, non‐parametric algorithm for distinguishing between these two categories, a process known as seismic declustering, based on the widely used nearest‐neighbor (NN) metric.
P. Bountzis   +3 more
wiley   +1 more source

Deep lithospheric structures along the southern central Chile Margin from wide-angle P-wave modellilng [PDF]

open access: yes, 2009
Crustal- and upper-mantle structures of the subduction zone in south central Chile, between 42 degrees S and 46 degrees S, are determined from seismic wide-angle reflection and refraction data, using the seismic ray tracing method to calculate minimum ...
A. Krabbenhoeft   +73 more
core   +1 more source

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