Results 21 to 30 of about 1,760 (179)

Eruptive history of Mt. Fuji over the past 8000 years based on integrated records of lacustrine and terrestrial tephra sequences and radiocarbon dating

Quaternary Science Advances, 2023
Reliable records of past volcanic activities are essential for assessing future eruption probabilities and establishing effective volcanic disaster mitigation plans.
Shinya Yamamoto, Nobuko Kametani, Mitsuhiro Yoshimoto, Yosuke Miyairi, Yusuke Yokoyama   +4 more
doaj   +1 more source

Zircon of Triassic Age in the Stuttgart Formation (Schilfsandstein)—Witness of Tephra Fallout in the Central European Basin and New Constraints on the Mid-Carnian Episode

Frontiers in Earth Science, 2021
The Carnian Stuttgart-Formation (Schilfsandstein) of the Central European Basin contains relics of Triassic volcanic detritus in form of euhedral zircon grains and authigenic analcime.
Armin Zeh, Armin Zeh, Matthias Franz, Karsten Obst   +3 more
doaj   +1 more source

Coastal dunes of Urup Island (Kuril Islands, North-Western Pacific): palaeoclimatic and environmental archive [PDF]

Геосистемы переходных зон, 2022
The Late Holocene phases of aeolian processes have been reconstructed on the basis of dune fields construction. The palaeoenvironmental studies were targeted to following problems: 1) to determine the periods of higher and lower activity of aeolian ...
Nadezhda G. Razjigaeva, Larisa A. Ganzey, Khikmatulla A. Arslanov, Nina F. Pshenichnikova   +3 more
doaj   +1 more source

Residential building and occupant vulnerability to tephra fall [PDF]

Natural Hazards and Earth System Sciences, 2005
Plinian and subplinian volcanic eruptions can be accompanied by tephra falls which may last hours or days, posing threats to people, buildings and economic activity. Numerous historical examples exist of tephra damage and tephra casualties.
R. J. S. Spence, I. Kelman, P. J. Baxter, G. Zuccaro, S. Petrazzuoli   +4 more
doaj  

A dataset for distribution and characteristics of Holocene pyroclastic fall deposits along the Pacific coasts in western Hokkaido, Japan

Data in Brief, 2020
The tephra layers known with eruption ages play an important role in an investigation of tsunami history and archaeology in addition to volcanic history in Hokkaido, Japan.
Ryo Nakanishi, Juichiro Ashi, Satoshi Okamura   +2 more
doaj   +1 more source

The Contributions of Marine Sediment Cores to Volcanic Hazard Assessments: Present Examples and Future Perspectives

Geosciences, 2023
The rigorous assessment of volcanic hazards relies on setting contemporary monitoring observations within an accurate, longer-term geological context. Revealing that geological context requires the detailed fieldwork, mapping and laboratory analysis of ...
Chris Satow, Sebastian Watt, Mike Cassidy, David Pyle, Yuqiao Natalie Deng   +4 more
doaj   +1 more source

Eruption source parameters for a Canadian mafic explosive eruption: an example from Sii Aks (Tseax) volcanoEruption source parameters for a Canadian mafic explosive eruption: an example from Sii Aks (Tseax) volcano [PDF]

Royal Society Open Science
Observations from tephra fall deposits are needed to constrain input parameters used to model tephra fall hazard, but this is challenging for mafic Canadian volcanoes, which are often in remote locations. Here, we present eruption source parameters (ESPs)
Sara Osman, Thomas J. Jones, Pier P. Comida, Yannick Le Moigne, Mansell Griffin, Harry Nyce Jr.   +5 more
doaj   +1 more source

Rapid Tephra Identification in Geological Archives With Computed Tomography: Experimental Results and Natural Applications

Frontiers in Earth Science, 2021
Volcanic ash (tephra) horizons represent powerful chronological and stratigraphic markers: rapid and widespread deposition allows for correlation of geological records in time and space.
Willem G. M. van der Bilt, Willem G. M. van der Bilt, Jan Magne Cederstrøm, Eivind W. N. Støren, Eivind W. N. Støren, Sarah M. P. Berben, Sarah M. P. Berben, Sunniva Rutledal, Sunniva Rutledal   +8 more
doaj   +1 more source

Estimating the mass of tephra accumulated on roads to best manage the impact of volcanic eruptions: the example of Mt Etna, Italy [PDF]

Natural Hazards and Earth System Sciences
Explosive eruptions release significant quantities of tephra, which can spread and settle on the ground, potentially leading to various types of damage and disruption to public infrastructure, including road networks.
L. Mereu, L. Mereu, M. Stocchi, M. Stocchi, A. Garcia, M. Prestifilippo, L. Sandri, C. Bonadonna, S. Scollo   +8 more
doaj   +1 more source

Soils and soilscapes of the Upper Volturno basin: a detailed survey of a large intermontane basin in the Central-Southern Apennines, Italy

Journal of Maps, 2021
Soils of the Upper Volturno basin in the Central-Southern Apennines (Molise, Italy) were surveyed in detail. Trends in development are described with focus on the contrast between the mountain soils and the soils of the basin.
R. H. van Otterloo, J. Sevink
doaj   +1 more source