Results 21 to 30 of about 6,498 (271)

Isotopes & Geochemistry: Tools For Geothermal Reservoir Characterization (Kamchatka Examples) [PDF]

open access: yesE3S Web of Conferences, 2019
The thermal, hydrogeological, and chemical processes affecting Kamchatka geothermal reservoirs were studied by using isotope and geochemistry data: (1) The Geysers Valley hydrothermal reservoirs; (2) The Paratunsky low temperature reservoirs; (3) The ...
Kiryukhin Alexey   +9 more
doaj   +1 more source

A new permanent, low-cost, low-power SO2 camera for continuous measurement of volcanic emissions

open access: yesFrontiers in Earth Science, 2023
Since its introduction to volcanology in the mid-2000 s, the SO2 camera has become an important instrument for the acquisition of accurate and high time-resolution SO2 emission rates, aiding in hazard assessment and volcanological research. However, with
Thomas Charles Wilkes   +10 more
doaj   +1 more source

Reflections on a career in operational science: some lessons learned

open access: yesFrontiers in Earth Science, 2023
In this short essay, I reflect on my career and some of the inspirational scientists that have influenced the way I have chosen to work. I highlight some of my lessons learnt as a woman scientist in an environment that remains largely male-dominated at a
Gill Jolly
doaj   +1 more source

A Deep Active Learning Approach to the Automatic Classification of Volcano-Seismic Events

open access: yesFrontiers in Earth Science, 2022
Volcano-seismic event classification represents a fundamental component of volcanic monitoring. Recent advances in techniques for the automatic classification of volcano-seismic events using supervised deep learning models achieve high accuracy. However,
Grace F. Manley   +6 more
doaj   +1 more source

A Log‐Ratio‐Based Algorithm for Petrologic Mass‐Balance Problems and Uncertainty Assessment

open access: yesGeochemistry, Geophysics, Geosystems, 2023
We provide a new algorithm for mass‐balance calculations in petrology and geochemistry based on the log‐ratio approach championed initially by John Aitchison (e.g., Aitchison, 1982, https://doi.org/10.1111/j.2517-6161.1982.tb01195.x; Aitchison, 1984 ...
Kelsey Prissel   +2 more
doaj   +1 more source

Origin of color variations of thin, nano-sized layers of volcanic cinder from the Sierra Negra Volcano of the Galapagos Islands

open access: yesUniciencia, 2021
Volcanic cinder, also known as scoria, is an extrusive igneous rock that forms when gas-rich magmas of basaltic or andesitic composition cool quickly.
Alexis Debut   +3 more
doaj   +1 more source

On an elastic model arising from volcanology: an analysis of the direct and inverse problem [PDF]

open access: yesJournal of Differential Equations, Volume 265, Issue 12, 2018, Pages 6400-6423, ISSN 0022-0396, 2017
In this paper we investigate a mathematical model arising from volcanology describing surface deformation effects generated by a magma chamber embedded into Earth's interior and exerting on it a uniform hydrostatic pressure. The modeling assumptions translate mathematically into a Neumann boundary value problem for the classical Lam\'e system in a half-
arxiv   +1 more source

Computer Aided Detection of Transient Inflation Events at Alaskan Volcanoes using GPS Measurements from 2005-2015 [PDF]

open access: yesJournal of Volcanology and Geothermal Research, 327, 634-642, 2017
Analysis of transient deformation events in time series data observed via networks of continuous Global Positioning System (GPS) ground stations provide insight into the magmatic and tectonic processes that drive volcanic activity. Typical analyses of spatial positions originating from each station require careful tuning of algorithmic parameters and ...
arxiv   +1 more source

Mathematical Model of the Stick-Slip Effect for Describing the "Drumbeat" Seismic Regime During the Eruption of the Kizimen Volcano in Kamchatka [PDF]

open access: yes, 2021
During the eruption of the Kizimen volcano in 2010-2013. There was a uniform squeezing of the viscous lava flow. Simultaneously with its movement, earthquakes with an unusual quasi-periodicity were recorded, the "drumbeats" mode. In this work, we show that these earthquakes were generated by the movement of the flow front, which was observed for the ...
arxiv   +1 more source

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