Results 81 to 90 of about 13,990 (220)

A Mohorovičić-határfelület magyarországi kutatása – módszerek, mérések, eredmények / Research of the Mohorovičić discontinuity in Hungary (methods, measurements and results) [PDF]

open access: yes, 2016
A Moho felszín vizsgálata, az 1909-es felfedezése óta folyamatos geofizikai kutatási tevékenység. A hazai Moho kutatás jelentős sikerrel kezdődött: Gálfi és Stegena (1955, 1957, 1960) fúrólyukakban nagy robbanó töltettel végzett rezgéskeltés ...
Gúthy, Tibor   +2 more
core  

Lateral Variations in Lunar Crustal Thickness Inferred From Apollo Seismic and GRAIL Gravity Data

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract The internal structure of the Moon is key to understanding its formation, evolution, and bulk composition. In particular, determining the structure of the crust–mantle interface (Moho), including its lateral variations, is of significant importance, but current knowledge is still insufficient to fully constrain it.
Xiang Zhang   +7 more
wiley   +1 more source

Receiver function study of the Hellenic subduction zone: imaging crustal thickness variations and the oceanic Moho of the descending African lithosphere [PDF]

open access: yes, 2017
We use data from recently installed broad-band seismographs on the islands of Crete, Gavdos, Santorini, Naxos and Samos in the Hellenic subduction zone to construct receiver function images of the crust and upper mantle from south of Crete into the ...
Bock, G.   +8 more
core  

Timing of Metamorphism and Deformation in the Neoarchean Quetico Metasedimentary Belt, Superior Craton, Constrained by Garnet Trace‐Element Mapping and Lu–Hf Geochronology

open access: yesJournal of Metamorphic Geology, Volume 44, Issue 4, Page 265-286, May 2026.
ABSTRACT The Quetico subprovince of the Superior Province is among the largest metasedimentary belts globally and provides evidence of tectonic processes at play during the final stages of Archean cratonization. Although previous studies have shown that deformation and metamorphism of the 2.7‐Ga turbiditic protolith resulted in regional subvertical ...
Adrian G. Rehm   +4 more
wiley   +1 more source

Layered Seismic Anisotropy and Tectonics of the Anatolian Plate

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Anatolian tectonics are associated with slab retreat in the west and gravitational potential energy and continental collision in the east, leading to westward motion of Anatolia relative to Eurasia, partially accommodated on the North and East Anatolian transform faults.
Chuanming Liu   +4 more
wiley   +1 more source

Crustal structure beneath broad-band seismic stations in the Mediterranean region [PDF]

open access: yes, 2017
We have analysed receiver functions to derive simple models for crustal structure below 12 broad-band seismological stations from the MIDSEA project and 5 permanent broad-band stations in the Mediterranean region including northern Africa.
Giardini, Domenico   +2 more
core  

Slab Dehydration Observed Down to Lower Seismicity Plane Depths in the Northern Chile Subduction Zone

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract We present a high‐resolution local earthquake tomography model that constrains the distribution of hydration and dehydration processes within the subducting Nazca slab beneath Northern Chile. We image a distinct downdip transition from high Vp/Vs (∼1.75) over low Vp/Vs (∼1.65) to a homogeneously high Vp/Vs slab at depths of ≥ ${\ge} $85 km ...
Nazia Hassan, Christian Sippl
wiley   +1 more source

Crustal structure below Popocat\'epetl Volcano (Mexico) from analysis of Rayleigh waves [PDF]

open access: yes, 2007
An array of ten broadband stations was installed on the Popocat\'epetl volcano (Mexico) for five months between October 2002 and February 2003. 26 regional and teleseismic earthquakes were selected and filtered in the frequency time domain to extract the
Almendros   +27 more
core   +7 more sources

Hydraulic Control of the Foreshocks and Mainshock of the 2017 Valparaíso, Chile, Earthquake

open access: yesGeophysical Research Letters, Volume 53, Issue 8, 28 April 2026.
Abstract Slow‐slip events (SSE) are a key mode of aseismic deformation and can enhance fault permeability through fracturing, enabling fluid migration from the overpressured oceanic crust to the plate interface. Whether the resulting poroelastic stress changes promote seismicity and larger megathrust events, however, remains unclear.
Carlos Peña   +4 more
wiley   +1 more source

Petrochemical and petrophysical characterization of the lower crust and the Moho beneath the West African Craton, based on Xenoliths from Kimberlites [PDF]

open access: yes
Additional evidence to the composition of the lower crust and uppermost mantle was presented in the form of xenolith data. Xenoliths from the 2.7-Ga West African Craton indicate that the Moho beneath this shield is a chemically and physically gradational
Haggerty, Stephen E., Toft, Paul B.
core   +1 more source

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