Page
%P
-
Article
Open AccessReported ultra-low lava viscosities from the 2021 La Palma eruption are potentially biased
-
Article
Open AccessWater in clinopyroxene from the 2021 Geldingadalir eruption of the Fagradalsfjall Fires, SW-Iceland
Water content plays a significant role in magma genesis, ascent rate, and, ultimately, in the style and intensity of volcanic eruptions, due to its control on the density, viscosity and melting behaviour of si...
-
Book Series
-
Book
-
Chapter
Merapi: Evolving Knowledge and Future Challenges
Despite the significant progress in our understanding of Merapi and its activity, as demonstrated by the contributions in this book, fundamental scientific questions about the volcano have remained unanswered ...
-
Chapter
The Magma Plumbing System of Merapi: The Petrological Perspective
Merapi volcano in Central Java is one of the most active volcanoes in the Sunda arc and poses a continuous threat to the local population. Basaltic-andesites from Merapi carry a voluminous crystal cargo and va...
-
Chapter
The Scientific Discovery of Merapi: From Ancient Javanese Sources to the 21st Century
Merapi is Indonesia’s most active volcano and one of the most iconic volcanoes worldwide. Renowned for its almost continuous eruptive activity and its magnificent summit dome as well as the frequent occurrence...
-
Chapter
Magma-Carbonate Interaction at Merapi Volcano, Indonesia
Merapi volcano, Indonesia, is a highly active arc volcano built upon a crustal succession that includes thick carbonate sequences. Calc-silicate (skarn) xenoliths are frequently found in Merapi’s erupted produ...
-
Article
Open AccessIron isotopes constrain sub-seafloor hydrothermal processes at the Trans-Atlantic Geotraverse (TAG) active sulfide mound
Sub-seafloor hydrothermal processes along volcanically active plate boundaries are integral to the formation of seafloor massive sulfide deposits and to oceanic iron cycling, yet the nature of their relationsh...
-
Article
Whole-rock oxygen isotope ratios as a proxy for the strength and stiffness of hydrothermally altered volcanic rocks
Hydrothermal alteration is considered to increase the likelihood of dome or flank collapse by compromising stability. Understanding how such alteration influences rock properties, and providing independent met...
-
Article
Open AccessAbsence of hydrothermal oxygen isotope variations in host rocks supports magmatic origin of the giant Grängesberg iron oxide–apatite (IOA) deposit, Central Sweden
The origin of Kiruna-type iron oxide–apatite ores is controversial, and debate presently centres on a ‘magmatic’ versus a ‘hydrothermal’ mode of formation. To complement recent investigations on the Grängesber...
-
Article
Open AccessHidden mechanical weaknesses within lava domes provided by buried high-porosity hydrothermal alteration zones
Catastrophic lava dome collapse is considered an unpredictable volcanic hazard because the physical properties, stress conditions, and internal structure of lava domes are not well understood and can change ra...
-
Article
Open AccessSunda arc mantle source δ18O value revealed by intracrystal isotope analysis
Magma plumbing systems underlying subduction zone volcanoes extend from the mantle through the overlying crust and facilitate protracted fractional crystallisation, assimilation, and mixing, which frequently o...
-
Article
Open AccessPetrogenesis of the Loch Bà ring-dyke and Centre 3 granites, Isle of Mull, Scotland
The Loch Bà ring-dyke and the associated Centre 3 granites represent the main events of the final phase of activity at the Palaeogene Mull igneous complex. The Loch Bà ring-dyke is one of the best exposed ring...
-
Article
Employing geochemistry and geochronology to unravel genesis and tectonic setting of iron oxide-apatite deposits of the Bafq-Saghand metallogenic belt, Central Iran
The Bafq-Saghand metallogenic belt is located in the central part of the Kerman–Kashmar tectonic zone and contains 39 individual occurrences of iron oxide-apatite ± REE mineralizations. These mineral concentra...
-
Article
Open AccessConstraining the sub-arc, parental magma composition for the giant Altiplano-Puna Volcanic Complex, northern Chile
The Andean continental arc is built upon the thickest crust on Earth, whose eruption products reflect varying degrees of crustal assimilation. In order to robustly model magma evolution and assimilation at sub...
-
Article
Open AccessHydrothermal alteration of andesitic lava domes can lead to explosive volcanic behaviour
Dome-forming volcanoes are among the most hazardous volcanoes on Earth. Magmatic outgassing can be hindered if the permeability of a lava dome is reduced, promoting pore pressure augmentation and explosive beh...
-
Article
In situ LA–ICP–MS trace element analyses of magnetite: genetic implications for the Zhonggu orefield, Ningwu volcanic basin, Anhui Province, China
The Zhonggu orefield is located within the southern Ningwu volcanic basin and is one of the largest iron ore districts within the Middle–Lower Yangtze River Metallogenic Belt (MLYRMB) of eastern China. The are...
-
Article
Open AccessInteraction between high-temperature magmatic fluids and limestone explains ‘Bastnäs-type’ REE deposits in central Sweden
The presently increasing demand for rare earth elements (REE), particularly in high-tech and “green energy” applications, has led to global interest in the distribution, origins and formation conditions of REE...
-
Article
Open AccessComplex hazard cascade culminating in the Anak Krakatau sector collapse
Flank instability and sector collapses, which pose major threats, are common on volcanic islands. On 22 Dec 2018, a sector collapse event occurred at Anak Krakatau volcano in the Sunda Strait, triggering a dea...
