Results 1 to 10 of about 46,249 (173)

A Rapidly Convecting Lava Lake at Masaya Volcano, Nicaragua [PDF]

open access: yesFrontiers in Earth Science, 2019
Lava lakes provide a rare opportunity to study conduit flow processes through direct observation of the exposed magma surface. The recent lava lake activity at Masaya volcano (Nicaragua), which commenced in 2015, displayed several unusual phenomena.
Tom D. Pering   +9 more
doaj   +4 more sources

Platinum Group Element Traces of CAMP Volcanism Associated With Low‐Latitude Environmental and Biological Disruptions

open access: yesGeophysical Monograph Series, Page 263-304., 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.
Jessica H. Whiteside   +3 more
wiley  

+7 more sources

Insights into the recurrent energetic eruptions that drive Awu, among the deadliest volcanoes on Earth [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2020
The little-known Awu volcano (Sangihe Islands, Indonesia) is among the deadliest, with a cumulative death toll of 11 048. In less than 4 centuries, 18 eruptions were recorded, including two VEI 4 and three VEI 3 eruptions with worldwide impacts ...
P. Bani   +3 more
doaj   +1 more source

High level sill and dyke intrusions initiated from rapidly buried mafic lava flows in scoria cones of Tongoa, Vanuatu (New Hebrides), South Pacific [PDF]

open access: yes, 2006
Scoria cones are generally considered to grow rapidly in days to weeks or months. During their growth lava flows may be fed onto the cone surface from lava-lake breaches, or form by coalescence of spatter; such flows are preserved interbedded with scoria
Nemeth, Karoly, White, James D. L.
core   +10 more sources

Modeling the Intermittent Lava Lake Drops Occurring Between 2015 and 2021 at Nyiragongo Volcano

open access: yesGeophysical Research Letters, 2023
Between 2015 and 2021, Nyiragongo's lava lake level experienced a linear increase punctuated by fast intermittent drops. These drops occurred synchronously to seismic swarm at approximately 15 km below the surface and extending laterally NE from the ...
D. Walwer   +5 more
doaj   +1 more source

The Basaltic Monogenetic Volcanic Field of the Bakony–Balaton UNESCO Global Geopark, Hungary: From Science to Geoeducation and Geotourism [PDF]

open access: yesGeoconservation Research, 2023
As a part of the long-standing volcanism of the Carpathian–Pannonian Region, a basaltic monogenetic volcanic field developed here from 8–2.3 Ma. This is a specific type of volcanism, when mostly a small volume of magma erupts intermittently and always in
Szabolcs Harangi, Barnabás Korbély
doaj   +1 more source

Classification of lava lakes based on their heat and SO2 emission: Implications for their formation and feeding processes

open access: yesFrontiers in Earth Science, 2023
Lava lakes are a fascinating but somewhat rare form of volcanic activity. Lava lakes are large free surfaces of hot lava that discharge continuously, and almost quietly, heat and volcanic gases into the atmosphere.
Robin Campion, Diego Coppola
doaj   +1 more source

Geodiversity Elements of a Young Fissure System as an Immediate Precursory Event of the Youngest Fissure-Fed Eruption within the Arxan UNESCO Global Geopark, Inner Mongolia, NE China

open access: yesProceedings, 2022
The Arxan–Chaihe volcanic field (ACVF) is a Pliocene to recent intracontinental monogenetic volcanic field. Within the ACVF, at least 47 vents are preserved in a ~2000 km2 area, forming two major NE-SW trending structural elements. The youngest eruptions
Bo’xin Li, Károly Németh
doaj   +1 more source

Recent activity at Nyiragongo and lava-like occurrences [PDF]

open access: yesBulletin of the Geological Society of Finland, 1985
The behaviour of Nyiragongo, before and after its outbreak on January 10th, 1977, as compared with the behaviour of the other two volcanoes containing subpermanent lava-lakes nowadays, Erta'Ale and Mount Erebus, suggests that the considerable convection ...
H. Tazieff
doaj   +1 more source

Twig biomass allocation of Betula platyphylla in different habitats in Wudalianchi Volcano, northeast China

open access: yesOpen Life Sciences, 2021
Understanding the response of biomass allocation in current-year twigs is crucial for elucidating the plant life-history strategies under heterogeneous volcanic habitats.
Yang Fan   +8 more
doaj   +1 more source

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