Results 11 to 20 of about 1,987 (234)
, 2014 Tephrochronology is the use of primary, characterized tephras or cryptotephras as chronostratigraphic marker beds to connect and synchronize geological, paleoenvironmental, or archaeological sequences or events, or soils/paleosols, and, uniquely, to transfer relative or numerical ages or dates to them using stratigraphic and age information together ...
Lowe, David J., Alloway, Brent V.
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Global tephra studies: role and importance of the international tephra research group “Commission on Tephrochronology” in its first 60 years [PDF]
History of Geo- and Space Sciences, 2022 Tephrochronology is a correlational and age-equivalent dating method whereby practitioners characterize, map, and date tephra (or volcanic ash) layers and use them stratigraphically as connecting and dating tools in the geosciences (including volcanology)
D. J. Lowe +4 more
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Marine tephrochronology: a personal perspective [PDF]
Geological Society, London, Special Publications, 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. The 10 articles collectively represent a re-focussed examination of tephras and cryptotephras preserved in ocean sediments
Lowe, David J., David J. Lowe
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The Omachi Tephra Formations and Tephrochronology
The Quaternary Research (Daiyonki-Kenkyu), 1972 The tephras supplied from Late Quaternary volcanoes in Central Japan have been distinguished into some tephra regions. In this paper, the author has made the characterization, classification and tephrochronologic consideration of the Omachi Tephra formations, which are developed in the Omachi Tephra region.
Susumu Nakaya
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Extending the Late Holocene Tephrochronology of the Central Kenai Peninsula, Alaska [PDF]
, 2009 Tephrochronology, the reconstruction of past volcanic ash deposition, provides a valuable method for dating sediments and determining long-term volcanic history.
Richard J. Payne, Jeffrey J. Blackford
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Millennium-scale changes in mire vegetation reconstructed from plot-based pollen and vegetation analysis and their implications for conservation [PDF]
Mires and Peat, 2023 Historical perspective helps ecologists and conservationists to better understand modern processes and potential future changes, but collecting long-term ecological data with fine spatiotemporal resolution is challenging.
Chuh Yonebayashi
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Geochemistry, Geophysics, Geosystems, 2022 Tephra layers preserved in marine sediments are strong tools to study the frequency, magnitude and source of past major explosive eruptions. Thirty‐seven volcanoes from the Ecuadorian and Colombian arc, in the northern Andes, experienced at least one ...
Mathilde Bablon +16 more
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Geosciences, 2021 Altered tephras (K-bentonites) are of great importance for calibration of the geologic time scale, for local, regional, and global correlations, and paleoenvironmental reconstructions.
Achim D. Herrmann +3 more
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Geomorphology of the Central Kamchatka Depression, the Kamchatka Peninsula, NE Pacific
Journal of Maps, 2023 The Kamchatka Peninsula lies on the eastern active margin of Eurasia, adjacent to the Kuril-Kamchatka subduction zone. In this study, we provide a geomorphological map of the Central Kamchatka Depression – the largest sedimentary basin in Kamchatka and ...
E. Zelenin +3 more
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Dating peat profiles using tephra: stratigraphy, geochemistry and chronology [PDF]
Mires and Peat, 2010 In this article we provide a brief overview of the protocols for dating peat profiles using tephrochronology. A standardised methodology for the detection, extraction and analysis of tephras is presented and the relevant problems and limitations are ...
G.T. Swindles +2 more
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