Results 61 to 70 of about 3,576 (157)

Magmatic and Tectonic Structures in the Crust Beneath Armenia and Surrounding Regions of Lesser Caucasus Inferred From Body‐Wave Earthquake Tomography

open access: yesGeochemistry, Geophysics, Geosystems, Volume 27, Issue 1, January 2026.
Abstract The Armenian Highlands, a tectonically active segment of the Arabia‐Eurasia collision zone, exhibit widespread Quaternary volcanism, rapid uplift, and intense seismicity. However, the lithospheric processes driving these phenomena remain poorly understood.
Ivan Koulakov   +5 more
wiley   +1 more source

Evidence of Subduction, Collision, and Extension in Northern Borneo: Constraints From Receiver Functions

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract What happens when subduction stops is a key, but poorly understood, part of the tectonic cycle. Northern Borneo (Sabah) with a complex geological history of multiple episodes of subduction, magmatism, uplift, subsidence, and extension since the Mesozoic, is an ideal location for studying post‐subduction processes.
Amy Gilligan   +6 more
wiley   +1 more source

The Magmatic‐Hydrothermal System of the Three Sisters Volcanic Cluster, Oregon, Imaged From Field Gravity Measurements

open access: yesJournal of Geophysical Research: Solid Earth, Volume 131, Issue 1, January 2026.
Abstract From 2019 to 2024, gravity surveys were conducted at the Three Sisters volcanic cluster (TSVC), measuring 246 gravity sites using a spring relative gravimeter. We calculated the residual Bouguer anomaly and identified three main zones with negative anomalies, ranging from −4 to −8 mGal, located southwest and west of South Sister, within an ...
Hélène Le Mével   +3 more
wiley   +1 more source

Density Model Creation Based on Separating Gravity Field by Depth

open access: yesRussian Journal of Earth Sciences
As a rule, it is known from a priori data that the studied field anomalies are caused by geological structures located at a certain depth below the day surface.
Martyshko Petr, Byzov Denis
doaj   +1 more source

Geophysical investigations of a geothermal anomaly at Wadi Ghadir, eastern Egypt [PDF]

open access: yes
During regional heat flow studies a geothermal anomaly was discovered approximately 2 km from the Red Sea coast at Wadi Ghadir, in the Red Sea Hills of Eastern Egypt.
Basta, N. Z.   +6 more
core   +1 more source

Gravimetric determination of the continental oceanic boundary of the Argentine continental margin (from 36°S to 50°S) [PDF]

open access: yes, 2016
This paper presents the gravimetric analysis together with seismic data as an integral application in order to identify the continental?oceanic crust boundary (COB) of the Argentine continental margin from 36◦S to 50◦S in a continuous way.
Arecco, Maria Alejandra   +5 more
core   +1 more source

Gravity survey of the Mt. Toondina impact structure, South Australia [PDF]

open access: yes
The Mt. Toondina impact structure is located in northern South Australia, about 45 km south of the town of Oodnadatta. Only the central uplift is exposed. The outcrops at Mt.
Plescia, J. B.   +2 more
core   +1 more source

Image processing applied to gravity and topography data covering the continental United States [PDF]

open access: yes
The applicability of fairly standard image processing techniques to processing and analyzing large geologic data sets in addressed. Image filtering techniques were used to interpolate between gravity station locations to produce a regularly spaced data ...
Arvidson, R. E.   +4 more
core   +1 more source

Comparisons of global topographic/isostatic models to the Earth's observed gravity field [PDF]

open access: yes
The Earth's gravitational potential, as described by a spherical harmonic expansion to degree 180, was compared to the potential implied by the topography and its isostatic compensation using five different hypothesis.
Rapp, Richard H.   +3 more
core   +1 more source

The alpine Swiss-French airborne gravity survey [PDF]

open access: yes, 2017
In February 1998, a regional-scale, airborne gravity survey was carried out over the French Occidental Alps within the framework of the GéoFrance 3-D research program.The survey consisted of 18 NS and 16 EW oriented lines with a spacing of 10 and 20 km ...
Bayer, Roger   +5 more
core  

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