Results 31 to 40 of about 32,694 (262)

Investigation of geomechanical properties of tephra relevant to roof loading for application in vulnerability analyses

Journal of Applied Volcanology, 2022
Tephra fall can lead to significant additional loading on roofs. Understanding the relevant geomechanical properties of tephra is critical when assessing the vulnerability of buildings to tephra fall and designing buildings to withstand tephra loads ...
Sara Osman, Mark Thomas, Julia Crummy, Stephen Carver   +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

Community established best practice recommendations for tephra studies—from collection through analysis

Scientific Data, 2020
Tephra is a unique volcanic product with an unparalleled role in understanding past eruptions, long-term behavior of volcanoes, and the effects of volcanism on climate and the environment.
Kristi L. Wallace, M. Bursik, Stephen Kuehn, A. Kurbatov, P. Abbott, C. Bonadonna, K. Cashman, S. Davies, B. Jensen, Christine Lane, G. Plunkett, V. Smith, E. Tomlinson, Thorvaldur Thórdarsson, J. Walker   +14 more
semanticscholar   +1 more source

La Tephra de Bag: une retombée volcanique à large dispersion dans le loess pléistocène d'Europe centrale [PDF]

Eiszeitalter und Gegenwart, 1991
Mehrere Eigenschaften (Korngröße, Mineralspektrum, chemische Zusammensetzung von Gesamtproben und von Klinopyroxenen) einer Tephralage, die in sieben Lößprofilen von Ungarn und der Tschechoslovakei vorkommt, wurden untersucht. Die Tephra ist identisch in
E. Juvigné, E. Horváth, G. Gábris
doaj   +1 more source

Re-identification of c. 15 700 cal yr BP tephra bed at Kaipo Bog, eastern North Island: implications for dispersal of Rotorua and Puketarata tephra beds. [PDF]

, 2003
A 10 mm thick, c. 15 700 calendar yr BP (c. 13 100 14C yr BP) rhyolitic tephra bed in the well-studied montane Kaipo Bog sequence of eastern North Island was previously correlated with Maroa-derived Puketarata Tephra.
Froggatt P. C., Kilgour G. N., Lloyd E. F., Lowe D. J., Lowe D. J., Nairn I. A., Pullar W. A., Righter K., Stuiver M., Topping W. W., Wilson C. J. N.   +10 more
core   +2 more sources

Deposition and preservation of tephra in marine sediments at the active Hikurangi subduction margin

, 2020
Tephra (volcanic ash) deposits are important isochronous markers for correlating marine sediments or events recorded in marine sediment cores. However, the active tectonics that are commonly associated with volcanic activity at plate tectonicboundaries ...
J. Hopkins, R. Wysoczanski, A. Orpin, J. Howarth, L. Strachan, R. Lunenburg, M. Mckeown, Aratrika Ganguly, Emily Twort, Sian Camp   +9 more
semanticscholar   +1 more source

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

Marine tephrochronology: a personal perspective [PDF]

, 2014
This special volume on marine tephrochronology is remarkable, and timely, because it marks a concerted step towards what might be informally termed ‘phase 3’ of a revolution in Quaternary geosciences that began around 40 years ago.
Lowe, David J.
core   +2 more sources

Methodological approaches to determining the marine radiocarbon reservoir effect [PDF]

, 2005
The marine radiocarbon reservoir effect is an offset in 14C age between contemporaneous organisms from the terrestrial environment and organisms that derive their carbon from the marine environment.
Albero, M. C., Andrew Dugmore, Arneborg, J., Ashmore, P., Austin, W. E. N., Bard, E., Bard, E., Barrett, J. H., Berger, W. H., Birkenmajer, K., Broecker, W. S., Burr, G. S., Dye, T., Eiríksson, J., Facorellis, Y., Gordon Cook, Gordon, J. E., Haflidason, H., Harkness, D. D., Heier-Neilsen, S., Higham, T. F. G., Ingram, B. L., Jones, G. A., Koç, N., Mangerud, J., McCave, I. N., Olsson, I. U., Paull, C. K., Peng, T.-H., Philippa Ascough, Reimer, P., Ruddiman, W. F., Schimel, D., Shackleton, N. J., Sikes, E. L., Southon, J. R., Stuiver, M., Stuiver, M., Tanaka, N., Thomson, J., Ward, G. K., Wheatcroft, R. A., Yoneda, M.   +42 more
core   +1 more source

Changes of Soil Chemistry Characteristics of Tephra Mount Anak Krakatau-Indonesia, Through Leaching Experiment

Journal of Tropical Soils, 2023
Studying the weathering process in pristine volcanic materials is crucial as this process will determine further soil characteristics. Mount Anak Krakatau is reported as one of the fastest-growing volcanoes.
Astriana Rahmi Setiawati, Jamalam Lumbanraja, Ananda Ika Kurnia, Manarul Hidayat, Septi Nurul Aini, Dedy Prasetyo   +5 more
doaj   +1 more source