Efficient inversion and uncertainty quantification of a tephra fallout model: TEPHRA INVERSION
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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
Effects of the peat acid digestion protocol on geochemically and morphologically diverse tephra deposits
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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
Traces of volcanic ash from the Mediterranean, Iceland and North America in a Holocene record from south Wales, UK
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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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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
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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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
Marine diagenesis of tephra aided the Palaeocene-Eocene Thermal Maximum termination
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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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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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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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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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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
Radiocarbon dating distal tephra from the Early Bronze Age Avellino eruption (EU-5) in the coastal basins of southern Lazio (Italy): Uncertainties, results, and implications for dating distal tephra
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DOI: 10.1016/j.quageo.2021.101154
Abstract: Abstract Distal tephra from the major Somma-Vesuvius Avellino (AV) eruption is widespread in the coastal basins of Southern Lazio (Central Italy). Dated to 1995 ± 10 cal yr BC in 2011, later on doubts arose about the reliability of… read more here.
Keywords: tephra; age; avellino eruption; distal tephra ... See more keywords