Results 61 to 70 of about 9,430 (230)

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

open access: yes, 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.   +5 more
core   +1 more source

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

open access: yesGeosciences, 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   +7 more
doaj   +1 more source

Efficient Automatic Pollen Recognition From Fossil Pollen Samples: A High‐Resolution Example Record From Palaeolake Kieshofer Moor, Northeastern Germany

open access: yesEcology and Evolution, Volume 16, Issue 6, June 2026.
We applied the two‐stage, AI‐based TOFSI approach to test automatic pollen recognition with fossil pollen samples. The algorithm performs very well for all major pollen types and other non‐pollen object classes, suggesting that such tools have the potential to substantially increase the efficiency of pollen analysis.
Martin Theuerkauf, Alexander Gillert
wiley   +1 more source

Resilience and plant growth forms 40 years after a volcanic disturbance

open access: yesEcosphere, Volume 17, Issue 6, June 2026.
Abstract Resilience represents a critical concept in ecology; yet, quantitative assessment of resilience in response to disturbance is rare, even for widely recognized growth forms. Plant groups based on deciduousness, clonality, morphology, and Raunkiaer life form could predict inertia to major disturbances and subsequent resilience.
Dylan G. Fischer   +2 more
wiley   +1 more source

Tephra fall impacts to buildings: the 2017–2018 Manaro Voui eruption, Vanuatu

open access: yesFrontiers in Earth Science
Building damage from tephra falls can have a substantial impact on exposed communities around erupting volcanoes. There are limited empirical studies of tephra fall impacts on buildings, with none on tephra falls impacting traditional thatched timber ...
Susanna F. Jenkins   +6 more
doaj   +1 more source

Stratigraphy and chronology of a 15ka sequence of multi-sourced silicic tephras in a montane peat bog, eastern North Island, New Zealand.

open access: yes, 1999
We document the stratigraphy, composition, and chronology of a succession of 16 distal, silicic tephra layers interbedded with lateglacial and Holocene peats and muds up to c. 15 000 radiocarbon years (c.
Lowe, David J.   +5 more
core   +1 more source

Loess Studies in Aotearoa New Zealand

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
Loess in Aotearoa New Zealand (ANZ) has been studied since its first documented recognition (on Banks Peninsula) in 1878 by Julius von Haast. A decade later, John Hardcastle revealed that southern ANZ loess was both glacial in origin and contained signals of past climates.
Brent V. Alloway   +4 more
wiley   +1 more source

Relation between Central European Climate Change and Eifel Volcanism during the Last 130,000 Years: The ELSA-23-Tephra-Stack

open access: yesQuaternary
The analysis of tephra layers in maar lake sediments of the Eifel shows 14 well-visible tephra during the last glacial cycle from the Holocene to the Eemian (0–130,000 yr b2k).
Frank Sirocko   +5 more
doaj   +1 more source

Tephra occurrence in Alaska: a map-based compilation of stratigraphic tephra data [PDF]

open access: yes, 2018
The principal hazard associated with future explosive eruptions of Alaska volcanoes is the generation of volcanic ash clouds which are explosively blasted high into the atmosphere and then drift away from the volcano with the wind. The fragments in the ash cloud (tephra) vary in size and the heavier particles fall near the source while finer particles ...
A.K. Worden   +2 more
openaire   +1 more source

A summary of terminology used in tephra-related studies

open access: yes, 2001
The word ‘tephra’, derived from a Greek word for ash, is a collective term for all the unconsolidated, primary pyroclastic products of a volcanic eruption.
Lowe, David J., Hunt, John B.
core  

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