Results 101 to 110 of about 23,398 (258)

GEODYNAMICS AS WAVE DYNAMICS OF THE MEDIUM COMPOSED OF ROTATING BLOCKS

open access: yesГеодинамика и тектонофизика, 2015
The geomedium block concept envisages that stresses in the medium composed of rotating blocks have torque and thus predetermine the medium's energy capacity (in terms of [Ponomarev, 2008]).
Alexander V. Vikulin
doaj   +1 more source

EDS Analysis for Petrology: A Probabilistic Framework With GPyEDS

open access: yesJournal of Geophysical Research: Machine Learning and Computation, Volume 2, Issue 4, December 2025.
Abstract Microtextural and chemical data from minerals in igneous rocks are critical for unpacking and developing understanding of processes in magmatic systems. Recent advancements leveraging unsupervised machine learning methods offer novel approaches for phase classification without requiring prior knowledge of phases or chemistry.
Norbert Toth   +3 more
wiley   +1 more source

Dike Arrest Identification by Reverse Focal Mechanisms: Evidence From Etna Eruptions

open access: yesGeophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract Real‐time prediction of dike behavior during an eruption remains a significant challenge. Determining the timing and location of dike propagation arrest is crucial for hazard evaluation. The inherent complexity of eruptive phenomena makes rapid, unambiguous interpretation through modeling difficult.
Alessandro Bonaccorso   +2 more
wiley   +1 more source

Logarithmic Growth of Dikes From a Depressurizing Magma Chamber

open access: yesGeophysical Research Letters, 2020
Dike propagation is an intrinsically multiphase problem, where deformation and fluid flow are intricately coupled in a fracture process. Here we perform the first fully coupled simulations of dike propagation in two dimensions, accounting for ...
Benjamin E. Grossman‐Ponemon   +3 more
doaj   +1 more source

Catastrophic volcanism as a cause of shocked features found at the K/T boundary and in cryptoexplosion structures [PDF]

open access: yes
The presence of quartz grains containing shock lamellae at the Cretaceous/Tertiary (K/T) boundary is viewed by many as the single most compelling evidence of meteoritic or cometary impact because there is no known endogenous mechanism for producing these
Loper, D. E., Mccartney, K.
core   +1 more source

Shallow magma chamber under the Wudalianchi Volcanic Field unveiled by seismic imaging with dense array

open access: yesGeophysical Research Letters, 2016
The Wudalianchi Volcano Field (WDF) is a typical intraplate volcano in northeast China with generation mechanism not yet well understood. As its last eruption was around 300 years ago, the present risk for volcano eruption is of particular public ...
Zhiwei Li   +6 more
doaj   +1 more source

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