A5051881502- Geological and Geochemical Analysis
- earthquake and tectonic studies
- High-pressure geophysics and materials
- Geological and Geophysical Studies
- Geochemistry and Geologic Mapping
- Methane Hydrates and Related Phenomena
- Geology and Paleoclimatology Research
- Geological Studies and Exploration
- Calcium Carbonate Crystallization and Inhibition
- Marine Bivalve and Aquaculture Studies
- Geochemistry and Elemental Analysis
- Paleontology and Stratigraphy of Fossils
- Geological and Tectonic Studies in Latin America
- Pleistocene-Era Hominins and Archaeology
- Geotourism and Geoheritage Conservation
- Geological formations and processes
- Ocean Acidification Effects and Responses
- Island Studies and Pacific Affairs
- Coral and Marine Ecosystems Studies
- Climate variability and models
- Geophysics and Gravity Measurements
- HER2/EGFR in Cancer Research
- Radiomics and Machine Learning in Medical Imaging
- Botany and Geology in Latin America and Caribbean
- Advanced Condensed Matter Physics
Cardiff University
2016-2025
University Hospitals Bristol and Weston NHS Foundation Trust
2021
Bristol Royal Infirmary
2021
University of Bristol
2011-2018
Uppsala University
2014-2016
Abstract Twenty-six new 40 Ar/ 39 Ar plateau ages for 23 lavas and domes from the Uturuncu volcano in Altiplano of SW Bolivia reveal a protracted eruptive history 1050±5 to 250±5 ka. Eruptions have been exclusively effusive, producing some 50 km 3 high-K dacites silicic andesites. Bimodal mineral compositions, complex textures, presence andesitic magmatic enclaves within linear chemical trends on binary element plots all indicate that magma mixing is an important petrogenetic process at...
Abstract About four billion years ago, Earth’s outer layer is thought to have been composed mostly of a 25- 50-km-thick basaltic crust that differentiated form the oldest stable continental crust. However, tectonic processes responsible for formation this material remain controversial. Suggested explanations include convergent plate boundary akin subduction operating today and variety relatively shallow (<50 km) non-plate-tectonic intracrustal mechanisms. Here we perform...
The Central Andes is a key global location to study the enigmatic relation between volcanism and plutonism because it has been site of large ignimbrite-forming eruptions during past several million years currently hosts world’s largest zone silicic partial melt in form Altiplano-Puna Magma (or Mush) Body (APMB) Southern Puna (SPMB). In this themed issue, results from recently completed PLUTONS project are synthesized. This focused an interdisciplinary on two regions large-scale surface...
Legacy iron (Fe) and steel wastes have been identified as a significant source of silicate minerals, which can undergo carbonation reactions thus sequester carbon dioxide (CO2). In reactor experiments, i.e., at elevated temperatures, pressures, or CO2 concentrations, these high to carbonate conversion rates. However, what is less understood whether more "passive" approach work, traditional slag emplacement method (heaped then buried) promotes hinders sequestration. this paper, the results...
Cerro Uturuncu is a long-dormant, compositionally monotonous, effusive dacitic volcano in the Altiplano–Puna Volcanic Complex (APVC) of SW Bolivia. The recently gained attention following discovery an ∼70 km diameter Interferometric Synthetic Aperture Radar (InSAR) anomaly roughly centred on its edifice. dacites, erupted over past ∼1 Myr, invariably have phase assemblage plagioclase–orthopyroxene–biotite–ilmenite–magnetite–apatite–zircon and rhyolite glass. To better constrain storage...
Abstract Increasing evidence suggests that nearshore turbid coral reefs may mitigate bleaching of reef building calcifiers and play a critical role in the future marine biodiversity coastal areas. However, biomineralization processes on are relatively understudied compared to clear water counterparts most published work focuses corals. Here, we investigate how mixotrophic giant clam Tridacna squamosa , bivalve with ecological, cultural economic significance, grows across mosaic less Coral...
Abstract The Merensky Reef of the Bushveld Complex represents a magmatic unconformity that some researchers attribute to chamber replenishment by relatively primitive magma. It is propounded cumulate rocks in this reacted with replenishing melt, as part process ultimately produced chromitite stringers and reef-style platinum-group element mineralization. This study investigates whether contributed formation its underlying anorthosite at Rustenburg Platinum Mine western lobe Complex. At...
Abstract Marine calcifying organisms on coral reefs face significant threats from various anthropogenic stressors. To better understand how these will respond to a rapidly changing ocean, it is crucial investigate their biomineralization across different reef environments. Despite resilience and potential as conservation hotspots, turbid reefs—projected expand throughout the 21st century—remain understudied, including limited knowledge of processes within Herein, for first time, we assess...
Volcanic evolution in ocean island settings is often controlled by variations the chemistry and volumetric flux of magma from an underlying mantle plume. In locations such as Hawaiʻi or Réunion, this results predictable chemistry, rate volcanic activity, depth storage with age and/or distance center plume upwelling. These systems, however, represent outliers global volcanism due to their high buoyancy flux, frequent eruptions, large any plate boundary. Most plumes display clear interaction...
Abstract Volcanic evolution in ocean island settings is often controlled by variations the chemistry and volumetric flux of magma from an underlying mantle plume. In locations such as Hawaiʻi or Réunion, this results predictable chemistry, rate volcanic activity, depth storage with age and/or distance center plume upwelling. These systems, however, represent outliers global volcanism due to their high buoyancy flux, frequent eruptions, large any plate boundary. Most plumes display clear...
Abstract Magma reservoirs underneath volcanoes grow through episodic emplacement of magma batches. These pulsed injections can substantially alter the physical state resident by changing its temperature, pressure, composition, and volatile content. Here we examine plagioclase phenocrysts in pumice from 2014 Plinian eruption Kelud (Indonesia) that record progressive capture small melt inclusions within concentric growth zones during crystallization inside a reservoir. High-spatial-resolution...
Research Article| April 01, 2011 Subvolcanic plumbing systems imaged through crystal size distributions Oleg E. Melnik; Melnik 1Institute of Mechanics, Moscow State University, 1-Michurinskii prospect, 119192, Russia2Department Earth Sciences, University Bristol, Wills Memorial Building, Bristol BS8 1RJ, UK Search for other works by this author on: GSW Google Scholar Jonathan D. Blundy; Blundy 2Department Alison C. Rust; Rust Duncan Muir Author and Article Information Publisher: Geological...
Abstract Bushveld anorthosites commonly contain the so-called “mottles” comprising irregular, typically centimetric domains of oikocrystic pyroxene or olivine enclosing small, embayed plagioclase grains. The mottles were traditionally interpreted to result from solidification trapped intercumulus liquid via in situ crystallisation at top crystal mush. Here, we present microtextural and compositional data a mottle place further constraints on formation anorthosite layers. Element maps...
Efficacious anticancer therapies for targeting plasma membrane receptors with antibody based therapeutics are often contingent on sufficient endocytic delivery of receptor and conjugate to lysosomes.This results in downregulation activity and, the case antibody-drug conjugates (ADCs), intracellular release a drug payload.The oncogenic HER2 is priority therapeutic target breast cancer.Known as an "endocytosis resistant" receptor, thwarts downregulating efficiency frontline treatment...
This article provides novel data on the microstructure and crystallographic texture of modern giant clam shells (Tridacna squamosa Hippopus hippopus) from Coral Triangle region northeast Borneo. Giant clams have two aragonitic shell layers—the inner outer layer. dataset focuses layer as this is well preserved not affected by diagenetic alteration. To prepare samples for analysis, were cut longitudinally at axis maximum growth mounted onto thin sections. Data collection involved scanning...
Base metal sulphide (BMS) inclusions in diamonds provide a unique insight into the chalcophile and highly siderophile element composition of mantle. Entombed within their diamond hosts, these more robust (closed system) sample, from which to determine trace element, Re-Os S-isotopic compositions mantle than xenoliths or orogenic peridotites, as they are shielded alteration during ascent Earth's crust subsequent surface weathering. However, at temperatures below 1100 °C some BMS undergo...
In the mammalian retina, rods and a specialised rod-driven signalling pathway mediate visual responses under scotopic (dim light) conditions. As primarily signal to rod bipolar cells (RBCs) scoptic conditions, disorders that affect or RBC function are often associated with impaired night vision. To identify novel genes expressed by RBCs and, therefore, likely be involved in vision, we took advantage of adult Bhlhe23-/- mouse retina (that lacks RBCs) derive transcriptome. We found mainly...
Low-gradeplatinum-group element mineralisation in the Volspruit Sulphide Zone is sulphide-poor (<5 vol. %), distributed over a ~60 m-thick horizon lowermost cumulates of northern limb Bushveld Complex. Unlike any other platinum-group (PGE) deposit Complex, hosted exclusively within harzburgitic and dunitic Lower Rustenburg Layered Suite. Here, we present petrological investigation on distribution PGEs chalcophile metals mineralised pyroxenite from Zone, to determine origin PGE ultramafic...