Eruption Style, Emplacement Dynamics and Geometry of Peralkaline Ignimbrites: Insights From the Lajes-Angra Ignimbrite Formation, Terceira Island, Azores [PDF]
Frontiers in Earth Science, 2021 Ignimbrites are relatively uncommon on ocean island volcanoes and yet they constitute a significant portion of the stratigraphy of Terceira Island (Azores). The Lajes-Angra Ignimbrite Formation (ca.
Adriano Pimentel +5 more
doaj +4 more sources
Permian Large Igneous Provinces and Their Paleoenvironmental Effects
Geophysical Monograph Series, Page 417-434., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jun Chen, Yi‐Gang Xu
wiley +7 more sources
Large-magnitude (VEI ≥ 7) ‘wet’ explosive silicic eruption preserved a Lower Miocene habitat at the Ipolytarnóc Fossil Site, North Hungary [PDF]
Scientific Reports, 2022 During Earth’s history, geosphere-biosphere interactions were often determined by momentary, catastrophic changes such as large explosive volcanic eruptions.
Dávid Karátson +14 more
doaj +2 more sources
A 13.06 Ma widespread ignimbrite in the Pannonian Basin captured a snapshot of shallow marine to coastal environment in Central Paratethys [PDF]
Scientific ReportsVoluminous Miocene silicic volcanism sourced mainly from the extensional Pannonian Basin played a major role in the evolution of the Central Paratethys.
Dávid Karátson +21 more
doaj +2 more sources
Subsurface geophysical profiling in Awash Melkesa: Insights into lithology and resource potential. [PDF]
PLoS ONEIntegrated geophysical investigations were conducted around Awash Melkesa, located 106 km southeast of Addis Ababa, utilizing electrical resistivity, magnetic, radiometric, and seismic refraction methods.
Eyayu Ayalew Dessalew +2 more
doaj +2 more sources
Thermal impact of dykes on ignimbrite and implications for fluid flow channelisation in a caldera
Volcanica, 2022 Ignimbrites within calderas host intrusions with hazardous and/or economically significant hydrothermal systems. The Hvítserkur ignimbrite at Breiðuvík caldera, north-eastern Iceland, is intruded by basaltic dykes.
Ben Kennedy +11 more
doaj +1 more source
Physical properties of pyroclastic density currents: relevance, challenges and future directions
Frontiers in Earth Science, 2023 Pyroclastic density currents (PDCs) are hazardous and destructive phenomena that pose a significant threat to communities living in the proximity of active volcanoes.
Thomas J. Jones +10 more
doaj +1 more source
Volcanica, 2022 Caldera-forming eruptions are amongst the most hazardous events in the Earth’s history, and understanding their formation is essential to forecasting activity at active calderas worldwide. In this study we present new field and geochronological evidence
Simon Murray Drake +7 more
doaj +1 more source
Wide-ranging and Violent Volcanic History of a Quiet Transborder Area: Volcanic Geoheritage of the Novohrad–Nógrád UNESCO Global Geopark [PDF]
Geoconservation Research, 2023 The Novohrad–Nógrád UNESCO Global Geopark is the first cross-border geopark located between Slovakia and Hungary, Eastern–Central Europe. “Ancient world without borders” – its motto reflects both the remarkable geodiversity and the strong link between ...
Szabolcs Harangi +2 more
doaj +1 more source
Frontiers in Earth Science, 2020 Estimations of the distribution and eruptive volume of large-scale pyroclastic density current (PDCs) and tephra fall deposits are essential for evaluation of the affected area, long-term volcanic hazards assessments, volcanic activity, and geophysical ...
Shinji Takarada, Hideo Hoshizumi
doaj +1 more source