Results 41 to 50 of about 1,041,229 (154)

Tephrochronology and its application: A review [PDF]

, 2011
Tephrochronology (from tephra, Gk ‘ashes’) is a unique stratigraphic method for linking, dating, and synchronizing geological, palaeoenvironmental, or archaeological sequences or events.
Lowe, David J., David J. Lowe
core   +1 more source

Tephra From the 3 March 2015 Sustained Column Related to Explosive Lava Fountain Activity at Volcán Villarrica (Chile)

Frontiers in Earth Science, 2018
Exceptionally intense lava fountains at open conduit volcanoes are infrequent, hazardous and little-warned events. Studying their tephra falls may reveal conduit dynamics, eruption source parameters and fragmentation mechanisms.
Jorge E. Romero, Franco Vera, Margherita Polacci, Daniele Morgavi, Fabio Arzilli, Mohammad Ayaz Alam, Jorge E. Bustillos, Alicia Guevara, Jeffrey B. Johnson, José L. Palma, Mike Burton, Evelyn Cuenca, Werner Keller   +12 more
doaj   +1 more source

Long-term change of the eruption activities of Sakurajima volcano, Japan, inferred from the fallout tephra deposits

Frontiers in Earth Science, 2022
Stratigraphic analysis of fallout tephra deposits in and around a volcano provides a framework for understanding the long-term temporal change in the volcano’s activities.
Ayumu Nishihara, Ayumu Nishihara, Nobuo Geshi, Hideto Naruo   +3 more
doaj   +1 more source

Estimating tephra fall volume from point-referenced thickness measurements

Geophysical Journal International, 2022
SUMMARYWe describe an algorithm for producing an approximate 95 per cent confidence interval (CI) for the bulk volume of tephra fall deposits, based on point-referenced tephra thickness measurements, and expert judgement. Applied to the Aso-4 eruption, our algorithm gives a 95 per cent CI of $[220\, \mathrm{km^3}, 370\, \mathrm{km^3}]$.
J C Rougier, R S J Sparks, W P Aspinall, S H Mahony   +3 more
openaire   +1 more source

Modeling Tephra Fall and Sediment-Water Flows to Assess Their Impacts on a Vulnerable Building Stock in the City of Arequipa, Peru

Frontiers in Earth Science, 2022
Arequipa, Peru’s second economic center hosting c. 1,110,000 inhabitants, is the largest South American city exposed to a large variety of natural hazards.
J.-C. Thouret, E. Arapa, S. Charbonnier, A. Guerrero, K. Kelfoun, G. Cordoba, D. Rodriguez, O. Santoni   +7 more
doaj   +1 more source

Sakurajima-Satsuma (Sz-S) and Noike-Yumugi (N-Ym) tephras: new tephrochronological marker beds for the last deglaciation, southern Kyushu, Japan [PDF]

, 2011
Two prominent tephras, Sakurajima-Satsuma (Sz-S) erupted from Sakurajima volcano and Noike-Yumugi (N-Ym) erupted from Kuchierabujima Island, provide new key marker beds for dating and synchronizing palaeoenvironmental and archaeological records in the ...
Murata, Masanori, Masanori Murata, Moriwaki, Hiroshi, Hiroshi Machida, Lowe, David J., Takehiko Suzuki, Ikehara, Minoru, Hiroshi Moriwaki, David J. Lowe, Minoru Ikehara, Suzuki, Takehiko, Machida, Hiroshi   +11 more
core   +1 more source

Temporal variations in discharge rate and component characteristics of tephra-fall deposits during the 2014–2015 eruption of Nakadake first crater, Aso Volcano, Japan

Earth, Planets and Space, 2019
The 2014–2015 eruption of the Nakadake first crater at Aso Volcano in southwestern Japan was characterized by continuous ash emissions and intermittent strombolian eruptions.
Yasuo Miyabuchi, Chihoko Hara
doaj   +1 more source

Vegetation responses to past volcanic disturbances at the Araucaria araucana forest‐steppe ecotone in northern Patagonia

Ecology and Evolution, 2022
Volcanic eruptions play an important role in vegetation dynamics and its historical range of variability. However, large events are infrequent and eruptions with a significant imprint in today's vegetation occurred far in the past, limiting our ...
Ricardo Moreno‐Gonzalez
doaj   +1 more source

Observations of tephra fall impacts from the 2011 Shinmoedake eruption, Japan [PDF]

Earth, Planets and Space, 2013
The 2011 eruption of Shinmoedake, Japan, deposited tephra across Miyazaki prefecture impacting both urban and rural environments. We provide an overview of the impacts, management and recovery of a modern city, infrastructure networks and a diverse agricultural region following this moderate sized explosive eruption, focusing on four key sectors ...
Magill, Christina, Wilson, Thomas, Okada, Tetsuya   +2 more
openaire   +1 more source

Vegetational response to tephra deposition and land-use change in Iceland: a modern analogue and multiple working hypothesis approach to tephropalynology [PDF]

, 2004
Evidence is provided from the joint application of tephrochronology and palynology in two Icelandic locations — the island of Papey off the east coast and Seljaland in the south.
Edwards, Kevin J., Dugmore, A. J., Dugmore, Andrew J., Blackford, Jeff J., Edwards, K. J., Blackford, J. J.   +5 more
core   +1 more source