Results 41 to 50 of about 25,642 (273)

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

Simulación de caída de ceniza del Volcán Irazú aplicando el programa TEPHRA modificado

Geo UERJ, 2013
DOI: 10.12957/geouerj.2013.6912 El presente trabajo utiliza el modelo de Suzuki(Suzuki, 1983)para simular la caída de cenizavolcánica em la versión TEPHRA (Connors, 1991).
Gustavo Barrantes Castillo, Santiago Núñez Corrales, José Castro Mora, Eduardo Malavassi Rojas, Casia Soto Montoya   +4 more
doaj   +1 more source

Extending the limits of the Borrobol Tephra to Scandinavia and detection of new early Holocene tephras

Quaternary Research, 2003
AbstractAnalyses of two infilled lakes in Blekinge, southeast Sweden, indicate the presence of at least three tephra horizons of Termination 1 and early Holocene age. Geochemical analyses confirm the presence of the Borrobol Tephra, the Askja Tephra (10,000 14C yr B.P.), and one previously unreported tephra of Icelandic origin.
Stefan Wastegård, Siwan M. Davies, Barbara Wohlfarth   +2 more
openaire   +4 more sources

Volcanic Fluxes Over the Last Millennium as Recorded in the Gv7 Ice Core (Northern Victoria Land, Antarctica)

Geosciences, 2020
Major explosive volcanic eruptions may significantly alter the global atmosphere for about 2−3 years. During that period, volcanic products (mainly H2SO4) with high residence time, stored in the stratosphere or, for shorter times, in the ...
Raffaello Nardin, Alessandra Amore, Silvia Becagli, Laura Caiazzo, Massimo Frezzotti, Mirko Severi, Barbara Stenni, Rita Traversi   +7 more
doaj   +1 more source

Tephra4D: A Python-Based Model for High-Resolution Tephra Transport and Deposition Simulations—Applications at Sakurajima Volcano, Japan

Atmosphere, 2021
Vulcanian eruptions (short-lived explosions consisting of a rising thermal) occur daily in volcanoes around the world. Such small-scale eruptions represent a challenge in numerical modeling due to local-scale effects, such as the volcano’s topography ...
Kosei Takishita, Alexandros P. Poulidis, Masato Iguchi   +2 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

Probabilistic Source Classification of Large Tephra Producing Eruptions Using Supervised Machine Learning: An Example From the Alaska‐Aleutian Arc

Geochemistry, Geophysics, Geosystems, 2023
Alaska contains over 130 volcanoes and volcanic fields that have been active within the last 2 million years. Of these, roughly 90 have erupted during the Holocene, with many characterized by at least one large explosive eruption.
Jordan Lubbers, Matthew Loewen, Kristi Wallace, Michelle Coombs, Jason Addison   +4 more
doaj   +1 more source

Late Holocene palynology and palaeovegetation of tephra-bearing mires at Papamoa and Waihi Beach, western Bay of Plenty, North Island, New Zealand. [PDF]

, 1995
The vegetation history of two mires associated with Holocene dunes near the western Bay of Plenty coast, North Island, New Zealand, is deduced from pollen analysis of two cores.
Campbell E. O., Clark R. L., Froggatt P. C, Gibb J. G., Gupta S. K., Hogg A. G., Lowe D. J., Lowe D. J., McGlone M. S., McGlone M. S., McGlone M. S., Nairn I. A., Naish T. R., Newnham R. M., Newnham R. M., Puilar W. A., Pullar W. A., Pullar W. A., Quayle A. M., Wigley G. N. A., Wilson C. J. N.   +20 more
core   +2 more sources

Late Pleistocene to Holocene sedimentation in the Great Blue Hole (Lighthouse Reef, Belize): Results from a 30 m long core

The Depositional Record, EarlyView.
A 30 m long sedimentary succession at the bottom of the Belize Blue Hole represents terrestrial cenote (12.5–7.2 ka BP), restricted marine swamp (7.2–5.7 ka BP) and fully marine lagoonal phases (5.7–0 ka BP) on Lighthouse Reef carbonate platform. Post‐glacial and Holocene sea‐level rise largely controlled the sedimentological, faunal and floral changes
Eberhard Gischler, Dominik Schmitt, Annika Wiegand, Hermann Behling, Lyudmila Shumilovskikh, Martin Melles, Volker Wennrich, Elija Nolte, Jozef Grego, Flavio S. Anselmetti, Hendrik Vogel, Daniel Birgel, Jörn Peckmann   +12 more
wiley   +1 more source

Enhancing event stratigraphic correlations in the ultra‐deep Japan Trench using XRF‐CS cluster‐based chemostratigraphy

The Depositional Record, EarlyView.
Cluster‐based chemostratigraphy using XRF‐CS enables high‐resolution correlation of event deposits across contrasting depositional settings in the Japan Trench. This approach reveals previously unrecognised events and compositional heterogeneity, offering new insights into sediment provenance and earthquake‐triggered deposition, with implications for ...
Jyh‐Jaan Steven Huang, Charlotte Pizer, Jun‐Ting Lin, Ken Ikehara, Michael Strasser   +4 more
wiley   +1 more source