Results 21 to 30 of about 3,985 (225)

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

Field work on the northern slopes of Kronotsky volcano in July–August 2023

open access: yesВестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле, 2023
In July-August 2023, field work was carried out on the northern slopes of Kronotsky volcano in the territory of the Kronotsky State Reserve, which is rarely visited by researchers.
N.V. Gorbach   +2 more
doaj   +1 more source

Reconciling pyroclastic flow and surge: the multiphase physics of pyroclastic density currents [PDF]

open access: yesEarth and Planetary Science Letters, 2002
Two end-member types of pyroclastic density current are commonly recognized: pyroclastic surges are dilute currents in which particles are carried in turbulent suspension and pyroclastic flows are highly concentrated flows. We provide scaling relations that unify these end-members and derive a segregation mechanism into basal concentrated flow and ...
Burgisser, Alain, W. Bergantz, George
openaire   +2 more sources

Simulation of tsunamis induced by volcanic activity in the Gulf of Naples (Italy) [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2003
The paper explores the potential of tsunami generation by pyroclastic flows travelling down the flank of the volcano Vesuvius that is found south of Naples in Italy.
S. Tinti, G. Pagnoni, A. Piatanesi
doaj  

Characterization of the environmental biophysical units of the Glacís de Buenavista, Morelos, by means of a geomorphogenetic approach

open access: yesInvestigaciones Geográficas, 2012
By means of applying a morphogenetic geomorphologic approach, the environmental biophysical units (EBU) of the Glacís of Buenavista volcanic-piedmont were delineated and characterized.
Fidel Martínez García   +1 more
doaj   +1 more source

Seismic characterization of pyroclastic flow activity at Soufrière Hills Volcano, Montserrat, 8 January 2007 [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2007
A partial dome collapse with concurrent pyroclastic flow (PF) activity occurred at Soufrière Hills Volcano (SHV), Montserrat on 8 January 2007. Pyroclastic density currents were observed to propagate from the Northwest and West sectors of the summit dome
S. De Angelis   +3 more
doaj  

Tracking Pyroclastic Flows at Soufrière Hills Volcano [PDF]

open access: yesEos, Transactions American Geophysical Union, 2009
Explosive volcanic eruptions typically show a huge column of ash and debris ejected into the stratosphere, crackling with lightning. Yet equally hazardous are the fast moving avalanches of hot gas and rock that can rush down the volcano's flanks at speeds approaching 280 kilometers per hour. Called pyroclastic flows, these surges can reach temperatures
RIPEPE, MAURIZIO   +7 more
openaire   +4 more sources

Evolution of Rajabasa Volcano in Kalianda Area and Its Vicinity, South Lampung Regency

open access: yesIndonesian Journal on Geoscience, 2014
DOI: 10.17014/ijog.v7i1.132Rajabasa Volcano (± 1281 m) and Lampung Tuff, located in the South Lampung Regency, is the main point in order to understand the evolution of Quaternary volcanism in the area.
Sutikno Bronto   +3 more
doaj   +1 more source

Inverting sediment bedforms for evaluating the hazard of dilute pyroclastic density currents in the field

open access: yesScientific Reports, 2021
Pyroclastic density currents are ground hugging gas-particle flows associated to explosive volcanic eruptions and moving down a volcano's slope, causing devastation and deaths.
Pierfrancesco Dellino   +4 more
doaj   +1 more source

The Relative Effectiveness of Empirical and Physical Models for Simulating the Dense Undercurrent of Pyroclastic Flows under Different Emplacement Conditions

open access: yesFrontiers in Earth Science, 2017
High concentration pyroclastic density currents (PDCs) are hot avalanches of volcanic rock and gas and are among the most destructive volcanic hazards due to their speed and mobility.
Sarah E. Ogburn, Eliza S. Calder
doaj   +1 more source

Home - About - Disclaimer - Privacy