Results 51 to 60 of about 54,408 (168)

The 2 May 2025 Mw 7.4 Drake Passage Earthquake: Insights Into Tectonics at the Shackleton Fracture Zone–Chilean Trench Transition

open access: yesGeophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract On 2 May 2025, an Mw 7.4 earthquake occurred ∼120 km off the southern tip of Tierra del Fuego, at the transition of the Shackleton Fracture Zone and the Chile Trench. This event exhibits reverse‐faulting mechanisms with relatively steeply dipping planes and is the largest recorded along this complex plate boundary.
A. Vuan   +11 more
wiley   +1 more source

STRUCTURAL AND DYNAMIC DISTRIBUTION PATTERNS OF OIL FIELDS IN THE CENTRAL PART OF THE VOLGA-URAL ANTECLISE

open access: yesГеодинамика и тектонофизика, 2020
Tectonical and development features of the central part of the Volga-Ural anteclise and the Sura-Kama (SK) shear zone are considered in connection with the distribution patterns of oil fields. Based on the geological and structural data, it is found that
S. Yu. Kolodyazhny, A. I. Nekrasov
doaj   +1 more source

Shallow Poroelastic Hydrothermal Deformation at Changbaishan Volcano Before the 2020 Unrest Revealed by Sentinel‐1 InSAR Time Series

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Ground deformation of dormant volcanoes provides critical insights into subsurface processes and potential hazards. Here we present Sentinel‐1 Interferometric Synthetic Aperture Radar (InSAR) time series (2015–2020) for Changbaishan volcano, the largest intraplate volcanic system in East Asia. We detect persistent subsidence of up to 3.5 mm/yr
Xingjun Luo   +3 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

Tracing Mantle Upwellings Beneath Changbaishan/Mount Paektu: New Insights From Transition Zone Discontinuity Structure

open access: yesGeophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract Intraplate volcanism in Northeast Asia, located in a distant back‐arc setting, challenges conventional models of mantle convection and volatile cycling. Using receiver function data from over 300 broadband stations, we image the mantle transition zone (MTZ) beneath the Changbaishan/Paektu volcano.
Cunrui Han   +6 more
wiley   +1 more source

Seismicity in Strike‐Slip Foreland Faults (Central Betic Cordillera Front): Evidence of Indentation Tectonics [PDF]

open access: yes, 2020
Unexpected seismicity has been detected in the past few years along the northern Guadiana Menor River (Guadalquivir foreland basin) at the northern boundary of the Betic Cordillera.
Martínez‐Martos, Manuel   +21 more
core   +1 more source

Uplift and seismicity of intraplate regions of India: role of rheology, paleo-and active tectonics

open access: yesFrontiers in Earth Science
The present study examines uplift and seismicity in the intraplate regions of the Indian shield. A comprehensive seismicity map of India is prepared, showing 47 major earthquake locations.
V. Vijaya Rao   +9 more
doaj   +1 more source

SECULAR CHANGES IN RELATIONSHIPS BETWEEN PLATE-TECTONIC AND MANTLE-PLUME ENGENDERED PROCESSES DURING PRECAMBRIAN TIME

open access: yesГеодинамика и тектонофизика, 2016
Paradoxically, the lists of “proxies” of both plate- and plume-related settings are devoid of even a mention of the high-grade metamorphic rocks (granulite, amphibolite and high-temperature eclogite facies).
M. V. Mints, P. G. Eriksson
doaj   +1 more source

Automatic GNSS Coordinate Time Series Analysis for Very Large Networks

open access: yesEarth and Space Science, Volume 13, Issue 10, October 2026.
Abstract We present a new algorithm, AutoCF, for automatically constructing coordinate functions (CFs) for continuously operating GNSS reference stations (CORSs). The iterative algorithm alternates between application of LASSO and Ridge Regression methods, with hyperparameters successively tightened with each iteration to more judiciously scrutinize ...
Richard A. Bennett   +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

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