Results 11 to 20 of about 2,135 (180)
Geochemistry, Geophysics, GeosystemsNorthern Andean volcanism is characterized by an intense Quaternary activity, whose onshore deposits have partly covered Mio‐Pliocene products associated with the early development of the arc, making it difficult to obtain an exhaustive catalog of past ...
Mathilde Bablon +10 more
doaj +2 more sources
Stratigraphy, age, composition, and correlation of late Quaternary tephras interbedded with organic sediments in Waikato lakes, North Island, New Zealand [PDF]
, 1988 Cores from 14 peaty lakes in the central Waikato region, northern North Island, contain a sequence of 41 well-preserved, mainly macroscopic, occasionally bedded, ash and lapilli layers ranging in thickness from c.
Lowe, David J.
core +8 more sources
Frontiers in Earth Science, 2023 The main goal of the study is to establish the spatial and temporal distribution of pyroclastic material from large explosive eruptions of the volcanoes of Kamchatka, the Kuril, and Aleutian Islands to create a generalized tephrochronological model and ...
Alexander Derkachev +6 more
doaj +1 more source
Geochemistry, Geophysics, Geosystems, 2021 The Milos, Christiana‐Santorini‐Kolumbo (CSK) and Kos‐Yali‐Nisyros (KYN) volcanic complexes of the Aegean Volcanic Arc have repeatedly produced highly explosive eruptions from at least ∼360 ka into historic times and still show recent unrest.
S. Kutterolf +15 more
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Progress in Earth and Planetary Science, 2020 Sediments from the semi-enclosed Japan Sea are sensitive to paleoclimatic perturbations and they offer great opportunities for many regional and global paleoceanographic and paleoclimatic studies. These studies often require a robust chronology. However,
Chuang Xuan +4 more
doaj +1 more source
A key continental archive for the last 2 Ma of climatic history of the central Mediterranean region: A pilot drilling in the Fucino Basin, central Italy [PDF]
Scientific Drilling, 2015 An 82 m long sedimentary succession was retrieved from the Fucino Basin, the largest intermountain tectonic depression of the central Apennines. The basin hosts a succession of fine-grained lacustrine sediments (ca.
B. Giaccio +16 more
doaj +1 more source
Composition and correlation criteria of the rhyolitic ignimbrites in the Monts Dore volcanic field (France) [PDF]
BSGF - Earth Sciences Bulletin, 2016 Rhyolitic pyroclastic deposits, mostly ignimbrites (ash-and-pumice flow deposits) from plinian eruptions belonging to the early activity (> 2.5 Ma) of the Plio-Quaternary Monts Dore volcanic field (Massif central, France) are documented in order to ...
Bourdier Jean-Louis +3 more
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First tephrostratigraphic results of the DEEP site record from Lake Ohrid (Macedonia and Albania) [PDF]
Biogeosciences, 2016 A tephrostratigraphic record covering the Marine Isotope Stages (MIS) 1–15 was established for the DEEP site record of Lake Ohrid (Macedonia and Albania). Major element analyses (energy dispersive spectroscopy (EDS) and wavelength-dispersive spectroscopy
N. Leicher +7 more
doaj +1 more source
Late Holocene tephrostratigraphy from Cajas National Park, southern Ecuador [PDF]
Andean Geology, 2020 Lakes located downwind of active volcanoes serve as a natural repository for volcanic ash (tephra) produced during eruptive events. In this study, sediment cores from four lakes in Cajas National Park, southern Ecuador, situated approximately 200 km downwind of active volcanoes in the Northern Andes Volcanic Zone, were analysed to document the regional
Stephanie H. Arcusa +6 more
openaire +2 more sources
Distinct lake level lowstand in Lake Prespa (SE Europe) at the time of the 74 (75) ka Toba eruption [PDF]
Climate of the Past, 2014 The 74 (75) ka Toba eruption in Sumatra, Indonesia, is considered to be one of the largest volcanic events during the Quaternary. Tephra from the Toba eruption has been found in many terrestrial and marine sedimentary deposits, and acidity peaks related ...
B. Wagner +8 more
doaj +1 more source