A5006172919- Geological and Geochemical Analysis
- earthquake and tectonic studies
- Geological and Geophysical Studies
- Geology and Paleoclimatology Research
- High-pressure geophysics and materials
- Archaeology and ancient environmental studies
- Geochemistry and Geologic Mapping
- Pleistocene-Era Hominins and Archaeology
- Pacific and Southeast Asian Studies
- Methane Hydrates and Related Phenomena
- Geophysical Methods and Applications
- Paleontology and Stratigraphy of Fossils
- Marine and environmental studies
- Seismic Waves and Analysis
- Plant Pathogenic Bacteria Studies
- Landslides and related hazards
- Maritime and Coastal Archaeology
- Geological Modeling and Analysis
- Herpesvirus Infections and Treatments
- Geological Studies and Exploration
- Mineralogy and Gemology Studies
- Paleopathology and ancient diseases
- Forensic Anthropology and Bioarchaeology Studies
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Genomics and Phylogenetic Studies
Swansea University
2019-2023
Scottish Universities Environmental Research Centre
2017-2018
University of East Anglia
2011-2017
Keele University
2009-2011
Transitions between explosive and effusive activity are commonly observed during dome-forming eruptions may be linked to factors such as magma influx, ascent rate degassing. However, the interplay these is complex resulting eruptive behaviour often unpredictable. This paper focuses on driving forces behind well-documented 2010 eruption of Merapi, volcano's largest since 1872. Time-controlled samples were collected from deposits, stage style activity. These include scoria pumice initial...
The 2010 eruption of Merapi (VEI 4) was the volcano's largest since 1872. In contrast to prolonged and effusive dome-forming eruptions typical Merapi's recent activity, began explosively, before a new dome rapidly emplaced. This subsequently destroyed by explosions, generating pyroclastic density currents (PDCs), predominantly consisting dark coloured, dense blocks basaltic andesite lava. A shift towards open-vent conditions in later stages culminated multiple explosions generation PDCs with...
Research Article| November 09, 2018 Bridging the gap: 40Ar/39Ar dating of volcanic eruptions from 'Age Discovery' Katie Preece; Preece * 1Isotope Geoscience Unit, Scottish Universities Environmental Centre, East Kilbride G75 0QF, UK *E-mail: Katie.Preece@glasgow.ac.uk Search for other works by this author on: GSW Google Scholar Darren F. Mark; Mark UK2Department Earth & Science, University St Andrews, Andrews KY16 9AJ, Jenni Barclay; Barclay 3School Sciences, Anglia, Norwich NR4 7TJ,...
Abstract Magma–carbonate interaction is an increasingly recognized process occurring at active volcanoes worldwide, with implications for the magmatic evolution of host volcanic systems, their eruptive behaviour, CO2 budgets, and economic mineralization. Abundant calc-silicate skarn xenoliths are found Merapi volcano, Indonesia. We identify two distinct xenolith types: xenoliths, which contain evidence formation within magma; exoskarn more likely represent fragments crystalline metamorphosed...
Abstract Interaction between magma and crustal carbonate at active arc volcanoes has recently been proposed as a source of atmospheric CO 2 , in addition to released from the mantle subducted oceanic crust. However, quantitative constraints on efficiency timing these processes are poorly established. Here, we present first situ carbon oxygen isotope data texturally distinct calcite calc-silicate xenoliths volcanics case study Merapi volcano (Indonesia). Textures C-O isotopic provide unique...
Merapi is Indonesia's most dangerous volcano with a history of deadly eruptions. Over the past two centuries, volcanic activity has been dominated by prolonged periods lava dome growth and intermittent gravitational or explosive failures to produce pyroclastic flows every few years. Explosive eruptions, such as in 2010, have occurred occasionally during this period, but were more common pre‐historical time, which collapse western sector at least once. Variations magma supply from depth,...
Abstract Ocean island volcanoes erupt a wide range of magmatic compositions via diverse eruptive styles. Understanding where and how these melts evolve is thus an essential component in the anticipation future volcanic activity. Here we examine role crustal structure flux controlling location, evolution ultimately composition at Ascension Island. Located South Atlantic, Island ocean volcano that has produced continuum from basalt to rhyolite its 1 Myr subaerial history. Volcanic rocks...
The generation of felsic melts (through open or closed system processes) within ocean island volcanoes has been a key area study since their identification. At Ascension Island in the south Atlantic, explosively erupted have, to date, demonstrated marked absence signs magma mixing and crustal assimilation. Here we present first observations fall deposit from recording both macro- micro-scale evidence for mingling. Geochemical analyses mineral glass phases, coupled with volatile...
In November 2017, Bali's ‘great volcano’, Gunung Agung, erupted for the first time since 1963—leading to evacuation of nearly 150 000 people from a preliminary danger zone within radius 9–12 km summit. Since phreatic onset eruption on 21 November, intermittent magmatic (Vulcanian) explosions continued threaten local residents and disrupt air traffic Indonesia's favourite tourist destination. Whereas opening seems have been less energetic than 1963 events, as January 2018, volcanic Alert...