Results 61 to 70 of about 7,715 (221)

Petrochemical characteristics of late Paleozoic magmatic rocks of the Mandakh area, southeast Mongolia

open access: yesMongolian Geoscientist, 2018
The late Paleozoic magmatic rocks are widely distributed in the Mandakh area which is located in the Gurvansaikhan and Manlai terrains, where porphyry Cu deposits occur.
Undarmaa Batsaikhan   +3 more
doaj   +1 more source

Seamount Subduction and Earthquakes [PDF]

open access: yesOceanography, 2010
Seamounts are ubiquitous features of the seafloor that form part of the fabric of oceanic crust. When a seamount enters a subduction zone, it has a major affect on forearc morphology, the uplift history of the island arc, and the structure of the ...
Anthony B. Watts   +2 more
doaj  

Subduction Initiation at the Corner of Small Oceanic Basins

open access: yesGeophysical Research Letters
In Southeast Asia, emerging subduction zones often appear to begin at the corners of small oceanic basins, which have a triangular‐indenter continent–ocean boundary geometry.
Miao Dong   +4 more
doaj   +1 more source

Tomographic image of the crust and uppermost mantle of the Ionian and Aegean regions

open access: yesAnnals of Geophysics, 1997
We present a tomographic view of the crust and uppermost mantle beneath the Central Mediterranean area obtained from P-wave arrival times of regional earthquakes selected from the ISC bulletin.
G. N. Stavrakakis   +6 more
doaj   +1 more source

Plume‐Driven Subduction Termination in 3‐D Mantle Convection Models

open access: yesGeochemistry, Geophysics, Geosystems
The effect of mantle plumes is secondary to that of subducting slabs for modern plate tectonics when considering plate driving forces. However, the impact of plumes on tectonics and planetary surface evolution may nonetheless have been significant.
Erin Heilman, Thorsten W. Becker
doaj   +1 more source

The Role of Slab Remnants in Modulating Free Subduction Dynamics: A 3‐D Spherical Numerical Study

open access: yesGeochemistry, Geophysics, Geosystems
Seismic tomography of Earth's mantle images abundant slab remnants, often located in close proximity to active subduction systems. The impact of such remnants on the dynamics of subduction remains underexplored. Here, we use simulations of multi‐material
Fangqin Chen   +4 more
doaj   +1 more source

Combustion and Pyrolysis EA‐IRMS Techniques to Determine the δ2H of Diamonds

open access: yesRapid Communications in Mass Spectrometry, Volume 40, Issue 10, 30 May 2026.
ABSTRACT Rationale Diamonds are generally considered to be metasomatic minerals originating from the Earth's mantle. They formed through the interaction of carbon‐bearing fluids or melts with the surrounding deep lithology. Most knowledge about the formation of diamonds comes from studying their mineral inclusions or stable isotopes.
François Fourel   +4 more
wiley   +1 more source

Modeling the Probability of Tsunami Fire Ignition Based on Data From the 2011 Tohoku and 2024 Noto Peninsula Earthquakes, With Recommendations to Reduce Emerging Fire Risk in Tsunami Vertical Evacuation Structures

open access: yesEarthquake Engineering &Structural Dynamics, Volume 55, Issue 5, Page 1116-1133, 25 April 2026.
ABSTRACT Recent tsunamigenic earthquakes in Japan have highlighted the emerging fire hazard triggered by tsunami inundation and its impact on tsunami vertical evacuation (TVE) structures. This new type of fire following earthquake, referred to as “tsunami fires,” may be a potential universal hazard that tsunami‐prone countries face; however, it has not
Tomoaki Nishino
wiley   +1 more source

Corrigendum: TerraceM-2: A Matlab® Interface for Mapping and Modeling Marine and Lacustrine Terraces

open access: yesFrontiers in Earth Science, 2020
Julius Jara-Muñoz   +5 more
doaj   +1 more source

Creep of Talc at Subduction Zone Conditions: Implications for Slow Slip and Strength of the Lithosphere

open access: yesGeophysical Research Letters
Talc can strongly influence the rheological properties of the subduction interface. Despite geologic evidence for talc at the interface, and proposed links between its rheology and slow slip events, few experiments have been conducted on talc at relevant
Hannah S. Shabtian, Greg Hirth
doaj   +1 more source

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