Results 21 to 30 of about 2,135 (180)

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

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.   +2 more
core   +2 more sources

TEPHROSTRATIGRAPHY OF THE LAST 160ka IN WESTERN LIMAGNE (FRANCE) [PDF]

open access: yesQuaternary International, 1998
The GEOCLER 1 core extracted from the Clermont crater lake sediments and surface studies made at several localities north of Clermont provided numerous stratigraphic, environmental and chronological data (TL and radiocarbon) which allow us to present a chronostratigraphy of the Limagne for the past 160 ka. 118 ash-falls have been recorded in the crater-
Vernet, Gérard   +6 more
openaire   +2 more sources

Extended East Antarctic ice-core tephrostratigraphy

open access: yesQuaternary Science Reviews, 2010
Three new tephra layers have been identified and analysed in the deeper sections of the EPICA Dome C (EDC) and Vostok ice record (East Antarctic plateau): one from EDC (358 ka old), originated from an Antarctic volcano, and two from Vostok (406 and 414 ka old, respectively), which are related to Antarctic volcanoes and to southern Andes and/or ...
Narcisi, Biancamaria   +2 more
openaire   +4 more sources

A review of late Quaternary silicic and some other tephra formations from New Zealand: their stratigraphy, nomenclature, distribution, volume, and age. [PDF]

open access: yes, 1990
The stratigraphic relationships and distribution of 36 named late Quaternary (≤c. 50 000 yr B P.) silicic tephra formations, erupted from 4 volcanic centres—Okataina, Taupo, Maroa, and Tuhua (Mayor Island)—are presented.
Froggatt, Paul C., Lowe, David J.
core   +2 more sources

Tephrostratigraphy and Magma Evolution Based on Combined Zircon Trace Element and U-Pb Age Data: Fingerprinting Miocene Silicic Pyroclastic Rocks in the Pannonian Basin

open access: yesFrontiers in Earth Science, 2021
We present a novel approach to use zircon as a correlation tool as well as a monitor for magma reservoir processes in silicic volcanic systems. Fingerprinting eruption products based on trace element content and U-Pb dates of zircon offers a promising ...
Réka Lukács   +7 more
doaj   +1 more source

Using Soil Stratigraphy and Tephrochronology to Understand the Origin, Age, and Classification of a Unique Late Quaternary Tephra-Derived Ultisol in Aotearoa New Zealand

open access: yesQuaternary, 2019
In this article, I show how an Ultisol, representative of a globally-important group of soils with clay-rich subsoils, low base saturation, and low fertility, in the central Waikato region in northern North Island, can be evaluated using soil ...
David J. Lowe
doaj   +1 more source

Marine records reveal multiple phases of Toba’s last volcanic activity

open access: yesScientific Reports, 2023
The Indonesian Young Toba Tuff (YTT), classically dated around 74 ka BP, is considered as a short-lived explosive cataclysmic super-eruption. The huge amounts of ash and SO2 emitted are likely to have triggered a volcanic winter which accelerated the ...
B. Caron   +8 more
doaj   +1 more source

Unraveling the Holocene Eruptive History of Flores Island (Azores) Through the Analysis of Lacustrine Sedimentary Records

open access: yesFrontiers in Earth Science, 2021
Lacustrine sequences from active volcanic settings usually hold a rich and continuous record of tephra layers, providing a critical source of information to reconstruct a most complete eruptive history of a region.
Mariana Andrade   +16 more
doaj   +1 more source

Marine tephrochronology: a personal perspective [PDF]

open access: yes, 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.
Lowe, David J.
core   +2 more sources

Volcanic hazard assessment for tephra fallout in Martinique

open access: yesJournal of Applied Volcanology, 2021
Mount Pelée (Martinique) is one of the most active volcanoes in the Lesser Antilles arc with more than 34 magmatic events in the last 24,000 years, including the deadliest eruption of the 20th century.
Audrey Michaud-Dubuy   +2 more
doaj   +1 more source

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