Results 71 to 80 of about 28,756 (261)

Connecting with tephras: principles, functioning, and applications of tephrochronology in Quaternary science [PDF]

open access: yes, 2013
Tephrochronology is a unique method for linking and dating geological, palaeoecological, palaeoclimatic, or archaeological sequences or events. The method relies firstly on stratigraphy and the law of superposition, which apply in any study that connects
Lowe, David J.
core   +1 more source

Temporal and spatial evolution of a waxing then waning catastrophic density current revealed by chemical mapping [PDF]

open access: yes, 2013
We reconstruct the behavior of a catastrophic sustained radial pyroclastic density current as it waxed then waned during its brief lifespan. By subdividing the deposit into 8 time slices using a chemical tracer, we show that the sustained current ...
Barry, Tiffany L.   +2 more
core   +1 more source

DensityX: A program for calculating the densities of magmatic liquids up to 1,627 °C and 30 kbar

open access: yesVolcanica, 2019
Here we present a standalone program, DensityX, to calculate the densities of hydrous silicate melts (1,000s of samples in a single model run) given pressures, temperatures, and major oxide compositions in wt% in the 10-component system SiO2-TiO2-Al2O3 ...
Kayla Iacovino, Christy B Till
doaj   +1 more source

An ashy septingentenarian: the Kaharoa tephra turns 700 (with notes on its volcanological, archaeological, and historical importance) [PDF]

open access: yes, 2014
Most of us are aware of the basaltic Tarawera eruption on 10th June 1886: the high toll on life (~120 people), landscape devastation, and loss of the Pink and White Terraces.
Lowe, David J., Pittari, Adrian
core   +1 more source

The Problems of Volcanology [PDF]

open access: yesProceedings of the National Academy of Sciences, 1920
Of the various sciences represented in the American Geophysical Union that of volcanology is perhaps the most complex and has probably most points of contact with the other geophysical sciences. This complexity and variety in the problems presented by the study of volcanoes arises, in part, from the fact that they are, as has been well said, “natural ...
openaire   +2 more sources

MAAR conference in Hungary [PDF]

open access: yes, 2005
No abstract ...
Martin, Ulrike, Nemeth, Karoly
core   +1 more source

Impact vesiculation – a new trigger for volcanic bubble growth and degassing [PDF]

open access: yes, 2007
We highlight a potentially important trigger for bubble growth and degassing in volcanic bombs. We have successfully triggered bubble growth in previously unvesiculated samples of silicate melt during experiments to simulate volcanic bomb impact, by ...
Dingwell, D. B.   +3 more
core   +1 more source

Hypocenter Determination and Clustering of Volcano-tectonic Earthquakes in Gede Volcano 2015 [PDF]

open access: yes, 2017
Gede volcano is an active volcano in West Java, Indonesia. Research about determination the volcano-tectonic earthquake source positions has given results using volcano-tectonic earthquakes data from January until November 2015.
Maryanto, S. (Sukir)   +2 more
core  

Volcanology and morphology [PDF]

open access: yes
Apollo 15 photographs of the southern parts of Serenitatis and Imbrium were used for a study of the morphology and distribution of wrinkle ridges. Volcanic and structural features along the south margin of Serenitatis were also studied, including the ...
Bryan, W. B.
core   +1 more source

Affiner la description des termes dans les dictionnaires généraux : l’apport d’un corpus de vulgarisation

open access: yesLexis: Journal in English Lexicology, 2010
The aim of the paper is to show how useful a popular-science corpus can be to improve the inventory and description of terminological units in general-purpose dictionaries.
Amélie Josselin-Leray
doaj   +1 more source

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