Results 51 to 60 of about 25,257 (286)

Products of an effusive subglacial rhyolite eruption: Blahnukur, Torfajokull, Iceland. [PDF]

open access: yes, 2001
. We present field observations from Blahnukur, a small volume (400 m thick. Lithofacies associations attest to complex patterns of volcano-ice interaction.
Dave McGarvie   +8 more
core   +1 more source

Charge State Influence on Stability and Isomerism in Dehydrogenated PAHs: Insights from Anthracene, Acridine, and Phenazine

open access: yesChemPhysChem, Volume 26, Issue 6, March 15, 2025.
The ionization of anthracene, acridine, and phenazine has been explored, along with the removal of one and two hydrogen atoms, to provide valuable information for astrochemists and to understand the behavior of the resulting structures and their electronic reorganization. Abstract In this study, we systematically explored the stability and isomerism of
Khaldia Zghida   +3 more
wiley   +1 more source

Genesis and karst characteristics of marble agglomerate in volcanic rocks on the eastern slope of Wutong Mountain, Shenzhen

open access: yesCarsologica Sinica
Karst phenomena, such as fissures and caves, occur in the marble agglomerate of pyroclastic rocks on the eastern slope of Shenzhen’s Wutong Mountain. These features have affected the engineering projects such as subway construction and pile foundation ...
Xiaohu WANG   +3 more
doaj   +1 more source

The role of tropical volcanic eruptions in exacerbating Indian droughts

open access: yesScientific Reports, 2021
The Indian summer monsoon rainfall (ISMR) is vital for the livelihood of millions of people in the Indian region; droughts caused by monsoon failures often resulted in famines.
Suvarna Fadnavis   +8 more
doaj   +1 more source

On Volcanic Eruptions [PDF]

open access: yesNature, 1874
A PASSAGE in Nasmyth's work on the “Moon” suggests, as a consequence, an explanation of volcanic eruptions that I have often given in lectures. The point to be explained is, why they are sudden and intermittent. Processes of cooling and expansion are gradual.
openaire   +2 more sources

Research progress and current status of dynamic wave propagation characteristics in rock mass: A review

open access: yesDeep Underground Science and Engineering, EarlyView.
This review elucidates the velocity–dispersion–attenuation coupling mechanisms of wave propagation in rock masses, compares six representative models, and reveals how pressure, temperature, mineral composition, and anisotropy jointly control dynamic responses in complex geological media.
Jiajun Shu   +8 more
wiley   +1 more source

Dampak Erupsi Gunung Merapi Terhadap Nilai Lahan dan Bangunan: Pendekatan Hedonic Price

open access: yesJurnal Sains & Teknologi Lingkungan, 2016
This study aims to conduct economic valuation of volcanic eruption impacts in disaster prone areas of Merapi eruption. Economic valuation of flood disaster impacts were calculated using the hedonic price method.
Endah Saptutyningsih
doaj   +1 more source

Post‐Eruption Tropical Cyclone Genesis Potential Change Over the Western North Pacific Modulated by Initial Oceanic Conditions

open access: yesGeophysical Research Letters
How tropical cyclone (TC) frequency may change following volcanic eruptions remains debated, owing to limited contemporary eruption samples. Using last‐millennium multi‐member simulations with CESM, we show that post‐eruption TC genesis potential over ...
Dubin Huan, Qing Yan, Jinzhe Zhang
doaj   +2 more sources

Early Cretaceous Volcanic Edifice Activity in the Sulu Orogenic Belt: Evidences From Volcanic-Sedimentary Rhythm Characteristics in Lingshan Island, Eastern Shandong Province, China

open access: yesFrontiers in Earth Science, 2022
A rhyolitic tuff-mudstone interbedded rock outcrop with a good rhythm is found in the Yangjiaodong area of Lingshan Island, eastern Shandong Province. The volcanic eruption dynamics process was investigated by using the rhythm of volcanic accumulation ...
Ruiyang Liu   +15 more
doaj   +1 more source

Will subglacial rhyolite eruptions be explosive or intrusive? Some insights from analytical models. [PDF]

open access: yes, 2007
Simple analytical models of subglacial eruptions are presented, which simulate evolving subglacial cavities and volcanic edifices during rhyolitic eruptions beneath temperate glaciers.
Gilbert, Jennie S.   +5 more
core   +1 more source

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