Results 21 to 30 of about 1,522 (205)

Physical properties of pyroclastic density currents: relevance, challenges and future directions

open access: yesFrontiers in Earth Science, 2023
Pyroclastic density currents (PDCs) are hazardous and destructive phenomena that pose a significant threat to communities living in the proximity of active volcanoes.
Thomas J. Jones   +10 more
doaj   +1 more source

Dune bedforms produced by dilute pyroclastic density currents from the August 2006 eruption of Tungurahua volcano, Ecuador. [PDF]

open access: yesBull Volcanol, 2013
A series of pyroclastic density currents were gen- erated at Tungurahua volcano (Ecuador) during a period of heightened activity in August 2006. Dense pyroclastic flows were confined to valleys of the drainage network, while dilute pyroclastic density ...
Douillet GA   +8 more
europepmc   +2 more sources

Energy facies. A global view of pyroclastic currents from vent to deposit

open access: yes, 2022
Pyroclastic currents are described as gravity currents, and the classic conceptual model gives a first-order importance to the density of such currents.
Giordano, Guido   +8 more
core   +1 more source

Long-term volcanic hazard assessment on El Hierro (Canary Islands) [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2014
Long-term hazard assessment, one of the bastions of risk-mitigation programs, is required for land-use planning and for developing emergency plans.
L. Becerril   +5 more
doaj   +1 more source

Patterns of deposition from experimental turbidity currents with reversing buoyancy [PDF]

open access: yes, 2010
Turbidity currents are turbulent, sediment-laden gravity currents which can be generated in relatively shallow shelf settings and travel downslope before spreading out across deep-water abyssal plains.
Pritchard, David   +2 more
core   +1 more source

Submarine pyroclastic deposits in Tertiary basins, NE Slovenia

open access: yesGeologija, 2013
In Tertiary basins of NE Slovenia, Upper Oligocene volcanic activity occurred in a submarine environment that experienced contemporaneous clastic sedimentation.
Polona Kralj
doaj   +1 more source

Supplemental Material: Long-runout pyroclastic density currents: Analysis and implications

open access: yes, 2022
Supplemental figures, detailed information on the Great Basin ignimbrites and the paleovalleys, a summary of the database and the characteristics of the pyroclastic density currents, and the statistical model used. 
Olivier Roche (7859148), et al. (281964)
core   +1 more source

Large-scale volcanic deposit fluidization by dilute pyroclastic density currents

open access: yes, 2023
co-auteur étrangerInternational audienceThere is increasing evidence that fine-grained deposits of pyroclastic density currents can be remobilized on a large scale, resulting in concentrated flows.
Kelfoun, Karim, Proaño, Antonio
core   +1 more source

A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates

open access: yesGeophysical Monograph Series, Page 47-54., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky   +2 more
wiley  

+1 more source

Pyroclastic Density Currents, understanding the deadly flow from volcanic eruptions

open access: yes, 2020
Pyroclastic Density Currents are hazardous, geophysical flows arising from volcanic activity that pose a significant risk to communities in close proximity to volcanoes.
Sun, Jin   +2 more
core   +1 more source

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