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   Articles with "tephra" as a keyword



Efficient inversion and uncertainty quantification of a tephra fallout model: TEPHRA INVERSION

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recommendations! Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016jb013682

Abstract: An efficient and effective inversion and uncertainty quantification approach is proposed for estimating eruption parameters given a data set collected from a tephra deposit. The approach is model independent and here is applied using Tephra2,… read more here.

Keywords: uncertainty; tephra; uncertainty quantification; eruption ... See more keywords
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Effects of the peat acid digestion protocol on geochemically and morphologically diverse tephra deposits

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recommendations! Published in 2019 at "Journal of Quaternary Science"

DOI: 10.1002/jqs.3104

Abstract: Tephra shards for electron probe microanalysis are most efficiently extracted from peat using acid digestion, which removes organic material that hinders density separation methods. However, strong ... read more here.

Keywords: digestion protocol; tephra; acid digestion; effects peat ... See more keywords
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Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK

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recommendations! Published in 2019 at "Journal of Quaternary Science"

DOI: 10.1002/jqs.3141

Abstract: A tephra record is presented for a sediment core from Llyn Llech Owain, south Wales, spanning the early‐ to mid‐Holocene. Seven cryptotephra deposits are discovered with three thought to correlate with known eruptions and the… read more here.

Keywords: traces volcanic; holocene; tephra; record ... See more keywords

Characterization and correlation of the Hegawa‐Kasamori 5 tephra, a widespread tephra aged c. 450 ka associated with large‐scale pyroclastic flows from southern Kyushu, SW Japan

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recommendations! Published in 2019 at "Journal of Quaternary Science"

DOI: 10.1002/jqs.3172

Abstract: A Middle Pleistocene widespread tephra, defined here as Hegawa‐Kasamori 5 tephra (Hgw‐Ks5), has been newly recognized over a broad area of Japan. Large‐scale pyroclastic flow deposits associated with co‐ignimbrite ash fall deposits (CAFDs) of Hgw‐Ks5… read more here.

Keywords: kasamori tephra; widespread tephra; tephra; hgw ks5 ... See more keywords

Magmatic evolution and magma chamber conditions of the Alpehué tephra from Sollipulli Volcano, Andean Southern Volcanic Zone, Chile/Argentina

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recommendations! Published in 2024 at "Contributions to Mineralogy and Petrology"

DOI: 10.1007/s00410-024-02195-0

Abstract: The trachydacitic Alpehué tephra from Sollipulli volcano (Andean Southern Volcanic Zone), consists of ignimbrite and fallout from a Plinian eruption about 3000 years ago. It is mainly composed of (1) crystal-rich pumice and ash but… read more here.

Keywords: tephra; reservoir; magma chamber; crystal mush ... See more keywords
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Post-depositional subsidence of the Avellino tephra marker bed in the Pontine plain (Lazio, Italy): Implications for Early Bronze Age palaeogeographical, water level and relative sea level reconstruction

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recommendations! Published in 2020 at "Catena"

DOI: 10.1016/j.catena.2020.104770

Abstract: Abstract Land subsidence has played and is still playing a significant role in coastal wetlands worldwide and in palaeogeographical reconstructions of such wetlands. The varying thickness of compaction-prone sediments over a stable subsurface is a… read more here.

Keywords: tephra; water; depositional subsidence; level ... See more keywords
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Marine diagenesis of tephra aided the Palaeocene-Eocene Thermal Maximum termination

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recommendations! Published in 2021 at "Earth and Planetary Science Letters"

DOI: 10.1016/j.epsl.2021.117101

Abstract: Abstract The Palaeocene-Eocene Thermal Maximum (PETM) was a period of intense global warming that began ∼55.9 million years ago and lasted about 170,000 yrs. Various mechanisms have been proposed to cause this warming, including the… read more here.

Keywords: palaeocene eocene; thermal maximum; eocene thermal; tephra ... See more keywords

Remobilized Cordón Caulle 2011 tephra deposits in north-Patagonian watersheds: Resedimentation at deltaic environments and its implications

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recommendations! Published in 2019 at "Geomorphology"

DOI: 10.1016/j.geomorph.2019.05.023

Abstract: Abstract The Argentinean side of the Andean North Patagonia is drained by several fluvio-lacustrine systems flowing eastwards from their headwaters at the Andes mountains towards large glacial lakes. These watersheds are recurrently affected by the… read more here.

Keywords: tephra deposits; mass wasting; tephra; caulle 2011 ... See more keywords

Tephrostratigraphy of the late Quaternary record from Lake Chalco, central México

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recommendations! Published in 2018 at "Journal of South American Earth Sciences"

DOI: 10.1016/j.jsames.2017.11.009

Abstract: Abstract Lacustrine sequences in active volcanic settings preserve the record of fall-out products (tephras) from explosive volcanic activity from both proximal and distal sources. Sediments of Lake Chalco, located in the western part of the… read more here.

Keywords: volcanic activity; lake chalco; tephrostratigraphy; record ... See more keywords

The first tephra evidence for a Late Glacial explosive volcanic eruption in the Arxan-Chaihe volcanic field (ACVF), northeast China

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recommendations! Published in 2017 at "Quaternary Geochronology"

DOI: 10.1016/j.quageo.2016.10.003

Abstract: Abstract A 5 mm thick tephra layer has been identified in the lacustrine sediments of Moon Lake in the Arxan-Chaihe volcanic field (ACVF) in Greater Khingan Mountains (NE China). The visible tephra layer is clearly revealed… read more here.

Keywords: arxan chaihe; tephra; layer; tephra layer ... See more keywords

U–Th disequilibrium, (U–Th)/He and 40Ar/39Ar geochronology of distal Nisyros Kyra tephra deposits on Datça peninsula (SW Anatolia)

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recommendations! Published in 2020 at "Quaternary Geochronology"

DOI: 10.1016/j.quageo.2019.101033

Abstract: Abstract Kyra is an important tephra unit for Nisyros pre-caldera stage due to a number of subunits with various compositions (basaltic andesite to dacite) and distal dispersion on surrounding Greek islands (Tilos and Chalki) and… read more here.

Keywords: tephra; pumice; kyra tephra; 40ar 39ar ... See more keywords