Results 71 to 80 of about 1,760 (179)

WebTephraCalc: a tephra fall volume estimation system using WebGIS and OGC web services

Earth, Planets and Space
Total tephra fall volume information is helpful in understanding the nature of volcanic activity and the extent of the destruction caused by the phenomenon.
Joel Bandibas, Shinji Takarada
doaj   +1 more source

Late Pleistocene synchronous caldera-forming eruptions in north and south of Japan: paleomagnetic and tephrochronological evidence from the Kutcharo II/III and Aso-4 tephras

Earth, Planets and Space
We conducted paleomagnetic analysis of two late Pleistocene caldera-forming eruption deposits, the Aso-4 tephra from the Aso caldera in Kyushu and Kp II/III deposits from the Kutcharo caldera in Hokkaido Japan, to constrain the time scales of the ...
Shohei Shibata, Takeshi Hasegawa, Akihiro Tanimoto, Nobutatsu Mochizuki, Makoto Okada   +4 more
doaj   +1 more source

Magma Budget From Lava and Tephra Volumes Erupted During the 25-26 October 2013 Lava Fountain at Mt Etna

Frontiers in Earth Science, 2018
Determining the volume of the various types of products of a highly frequent active volcano can be very difficult, especially if most of them are deposited on a growing volcanic cone.
Daniele Andronico, Boris Behncke, Emanuela De Beni, Antonino Cristaldi, Simona Scollo, Manuela Lopez, Maria D. Lo Castro   +6 more
doaj   +1 more source

Late Holocene explosive activity of the Atsonupuri volcano (Iturup Island, Southern Kuril Islands): preliminary results [PDF]

Геосистемы переходных зон
The first results of the study of Late Holocene activity of the Atsonupuri volcano (Iturup Island, Southern Kuril Islands) obtained during field work in 2013–2014 are presented. On the basis of tephrochronological studies and radiocarbon dating, it was
Degterev, Artem V.
doaj   +1 more source

Tephras and tephrochronology.

Journal of the Japan Society of Engineering Geology, 1989
Kazuo OHMURA, Fusao ARAI
openaire   +3 more sources

Textural complexity and geochemistry of the last millennium pyroclastic deposits from Puyehue-Cordón Caulle Volcanic Complex

Volcanica
The component variability in Puyehue-Cordón Caulle Volcanic Complex (PCCVC) products reflects the inherent complexity of volcanic processes. We examine pyroclastic deposits from Cordón Caulle (2011 and 1960 eruptions) and Puyehue (MH tephra) in a ...
Walter Alexis Alfonzo, Romina Daga, Alejandro Demichelis, Gastón Goldmann, Sergio Ribeiro Guevara   +4 more
doaj   +1 more source

Editorial: Tephra [PDF]

PAGES news, 2004
V Hall, B Alloway
openaire   +1 more source

Introducing Geoscience Students to Numerical Modeling of Volcanic Hazards: The example of Tephra2 on VHub.org

Numeracy, 2012
The Tephra2 numerical model for tephra fallout from explosive volcanic eruptions is specifically designed to enable students to probe ideas in model literacy, including code validation and verification, the role of simplifying assumptions, and the ...
Leah M. Courtland, Charles Connor, Laura Connor, Costanza Bonadonna   +3 more
doaj   +1 more source

Krasheninnikov Caldera (Eastern Kamchatka): age and magnitude of eruption

Вестник Камчатской региональной ассоциации "Учебно-научный центр". Серия: Науки о Земле
New data on the composition of the pyroclastic deposits of the Krasheninnikov caldera allowed us to correlate it to the previously studied tephra horizon Geys30, which until recently was erroneously attributed to an eruption within the Geysernaya caldera.
V.V. Ponomareva, N.V. Gorbach, E.A. Zelenin, M.V. Portnyagin, A.N. Rogozin, O.V. Dirksen   +5 more
doaj   +1 more source

Sustained ash emission during lava effusion is a hidden volcanic hazard of silicic eruptions. [PDF]

Nat Commun
Zhang J, Tuffen H, Wadsworth FB, Farquharson JI, Unwin HE, Hodgetts AGE, Aubry TJ, Farbicki MW, McGarvie D, Sigurbjargarson DF.   +9 more
europepmc   +1 more source