Researchers at North Carolina State University have developed nano-volcanoes that can store precise amounts of materials and control the release of drugs. The structures are created by shining light through a nanoscale 'crystal ball', allowing for precise control over their shape and size.
A new article in Proceedings of the National Academy of Sciences refutes a theory that modern humans settled in southern Asia before the Mount Toba eruption. The research uses mitochondrial DNA evidence and other data to conclude that modern humans arrived in India no earlier than 60,000 years ago.
A new method of sourcing artefacts in high definition improves our understanding of past human behaviour. By matching artefacts to specific quarries at volcanoes, researchers can reconstruct spatial resolution and gain a deeper insight into cultural significance.
Research reveals sulfur dioxide from volcanoes affects stratospheric aerosol concentration, cooling the climate. The study uses MIPAS data to analyze sulfur budget in the stratosphere and excludes anthropogenic sources.
Researchers have developed a mathematical model that uses game theory to disrupt the flow of information in terrorist networks. The model, inspired by a two-player outdoor game called Seepage, can identify the most effective points for disrupting messages in hierarchical social networks.
The Landsat thermal sensor has successfully imaged the heat emanating from Paluweh volcano in Indonesia, capturing a hot spot at the top of the volcanic island. The sensor's ability to distinguish between the hot lava and cooler ash is crucial for scientists studying volcanic activity.
Detailed mapping of the Kima'Kho tuya in northern British Columbia shows that the ancient regional ice sheet through which it erupted was twice as thick as previously estimated. This discovery could provide new constraints on paleoclimate models, advancing our understanding of glaciovolcanic eruptions and their impact.
Researchers analyzed pre-eruption seismic activity before the 2009 Redoubt volcano eruption, which deviated from common patterns. Advanced analysis revealed a protracted period of slow magma ascent followed by rapidly increasing pressure, enabling improved forecasting techniques.
Researchers investigate how surface-derived fluids can penetrate deep levels in Earth's crust, a challenge to widely accepted notions. They also explore the kill mechanism for a mass extinction event and the formation of hydrothermal base metal ore deposits. Additional studies focus on polar reversals, earthquakes, and archeological fi...
A team of international researchers led by University of Rhode Island Professor Christopher Kincaid found that severely deformed and defunct pieces of a former mantle plume caused volcanism in the Yellowstone area. The study suggests that circulation currents driven by tectonic plate movement at subduction zones affected the plume, pro...
Randall White, a renowned volcano seismologist, has been recognized by the Seismological Society of America (SSA) for his dedication to public service and seismic forecasting. He has saved countless lives through his work in predicting volcanic eruptions, sharing his techniques with international partners.
Scientists found a systematic eastward offset between observed and predicted volcano locations on Io, suggesting a faster rotation or internal structure. A global subsurface magma ocean scenario is also possible to explain the anomaly, with potential implications for life in icy moons like Europa and Enceladus.
Researchers at Scripps Institution of Oceanography have captured a unique image of a site deep in the earth where magma is generated. The cross-section area of the melting region rivals the size of San Diego County, providing insights into the fundamental processes of plate tectonics.
Researchers study terrestrial water storage data to predict fire activity in the Amazon region months in advance. They find that during high fire years, water storage is below average before the fire season, while in low fire years, it is above average before the dry season.
Researchers uncover analogous cratering patterns at the Ries Impact Crater and Mars, while also analyzing camelopard-like camouflage in trilobites. The study of Hydrate Ridge and the Sahara Desert reveals insights into volcanic unrest and paleoweather conditions.
A Mars research project led by American Association for the Advancement of Science (AAAS) has won the Science Prize for Inquiry-Based Instruction. Middle-school students from a small rural town in northern California used a camera orbiting Mars to conduct their own experiment and discover a new cave on the flanks of a Martian volcano.
This study investigates the sedimentary fingerprint of the 2011 Mississippi River flood across the Louisiana coast, identifying key indicators of sediment provenance. Chemostratigraphy also reveals a complete Late Permian to Early Triassic sequence in western Utah, shedding light on the Permian-Triassic mass extinction event.
A new study led by Rice University suggests that episodic flare-ups of volcanoes at key locations could be driving Earth's repeated flip-flopping between greenhouse and icehouse states. The researchers found that these continental-arc volcanoes release enormous amounts of carbon dioxide, which drives the climate cycles.
The article discusses various geological topics, including the flatness of Earth, chemical weathering, and the distribution of radiogenic lead in zircons. The findings show that mountains do not play a significant role in 'carbon drawdown' effect and challenge previous studies.
Researchers describe a previously undocumented type of eruption in underwater volcanoes, characterized by a unique bubble structure that defies explosive or effusive categories. The study proposes a new eruptive style, named Tangaroan, which occurs when magma forms a buoyant foam that rises to the seafloor and detaches from the volcano.
The LaMEVE database offers rapid searchability of information on large volcanic events with a quantitative data quality score. It focuses on magnitude 4 or greater eruptions, which are typically responsible for the most loss of life in historical periods.
Climate change is projected to place the endemic Haleakalā silversword species at risk of extinction due to increasing water stress and lethal conditions. The plant's recovery from early threats has stalled, with annual population growth rates linked to precipitation patterns and warmer-drier climate trends.
GEOMAR researchers have found evidence that climate change can trigger volcanic eruptions on a global scale. They discovered a pattern where periods of high volcanic activity followed rapid global temperature increases and associated ice melting. This discovery could provide new insights into the Earth's natural climate cycles.
A recent study published in Applied and Environmental Microbiology reveals that transpacific dust plumes carry thousands of unique microbial species to North America. The researchers detected archaea at high altitudes, which has potential applications in biotechnology and medicine.
Researchers detect volcanic carbon monoxide emissions via satellite sensors, estimating a global emission of approximately 5.5 teragrams per year. Antarctic sea ice thickness affects algae populations, with varying seasonal patterns and relationships between surface, interior, and underside layers.
A National Science Foundation-funded research team has discovered the remains of a camp used by explorers of the 'Heroic Age' of Antarctic exploration, dating back to 1912. The site was found using a combination of written accounts and historic images, matching an archival photograph from the Terra Nova expedition.
A six-year observation by ESA's Venus Express reveals significant changes in the planet's atmosphere, suggesting recent volcanic eruptions. The thick atmosphere contains over a million times more sulphur dioxide than Earth's, which is mostly generated by volcanic activity.
A University at Buffalo study examines maar craters, finding that their shape and ejecting distance are more accurate measures of an eruption's force. The findings could help scientists estimate the size of future volcano eruptions.
The Geological Society of America's GEOLOGY journal has posted 35 new studies online, covering various disciplines such as volcanology and paleoclimatology. These studies explore topics like super-eruptions, vegetation change, and geochemical asymmetry in hotspot volcanoes.
A new study explains the connection between Kilauea and Mauna Loa by proposing an upper-mantle link that can account for their competition over a deep magma supply. The research suggests that increased pressure in the upper mantle is transmitted through a partially molten region, causing simultaneous inflation at both volcanoes.
Scientists have discovered a complete geomagnetic field reversal 41,000 years ago in Black Sea sediments, which was associated with rapid climate changes and a massive volcanic eruption. The reversal lasted only 440 years and led to a significant increase in radiation exposure due to a weaker magnetic field.
Researchers found that initial bubble growth determines eruption size, with rapid changes in gas flux and composition crucial for prediction. The study provides a key to understanding volcanic eruptions and could lead to better predictions of their scale.
Researchers found that pre-eruptive mixing within magma chambers, triggered by older cooler magma mixing with younger hotter magma, is the common event before catastrophic eruptions. This discovery could prove invaluable in future hazard and risk assessment on islands prone to volcanic activity.
Scientists have used satellite data to reveal a geological oddity in the Altiplano-Puna plateau, where magma is forming a large blob that pushes up the earth's surface across an area 100km wide. This 'sombrero uplift' could provide insights into massive magmatic events leading to super volcano formation.
A new model provides insight into the brief but violent lives of monogenetic volcanoes, shedding light on their explosive mechanisms. The research proposes that explosions occur simultaneously over a range of depths, contradicting previous theories.
New research reveals Mercury's surface composition is dominated by minerals high in magnesium and sulfur, differing from other planets. In contrast, African dust forms red soils in Bermuda through a complex interplay of local and global climate processes. The origin of these unique features remains a topic of ongoing scientific study.
Researchers used satellite radar images and GPS receivers to detect the 8-14 centimeter rise in the island's surface. The team calculated that the amount of molten rock beneath Santorini has grown by 10-20 years' worth, but this does not necessarily indicate an imminent eruption.
Researchers at the University of Sheffield have uncovered the origins and trading routes of ancient obsidian tools in Syria. The study reveals that exotic obsidian artefacts originated from a volcano three times farther away than expected, providing new insights into changing Bronze-Age economics and geopolitics.
A new study found that people living close to Eyjafjallajökull volcano experienced worse respiratory symptoms after the 2010 eruption. The researchers reported increased symptoms such as phlegm, eye irritation, and cough, highlighting the importance of healthcare professionals being aware of potential risks.
Scientists study Mercury's surface chemistry and geological history, finding distinctive mineral patterns dominated by magnesium and sulfur. Meanwhile, researchers in Bermuda investigate the origin of red soils, discovering that African dust may be a key factor in their formation.
A third of Earth's organisms live in rocks and sediments, yet their lives and ecology are unknown. Researchers at UMass Amherst study methane-exhaling microbes in undersea volcanoes, establishing the first environmental hydrogen threshold for hyperthermophilic methanogens.
Recent eruptions demonstrate the vulnerability to ash dispersal, which can disrupt aviation and cause billions of dollars in economic loss. Scientists now understand that particle size is determined by post-eruption collisions, not just initial fragmentation.
Scientists used C-14 dating and soil analysis to determine the age of Croscat Volcano's last eruption. The study reveals that the region experienced mild temperatures and increased rainfall around 13,270 years ago before the volcanic activity began.
Researchers will study Axial Seamount to understand subseafloor microbial processes, carbon cycle, and virus-microbe interactions. They aim to 'break open the black box' of deep-sea microbiology.
Scientists recreated extreme conditions at Earth's core-mantle boundary using X-rays, showing that partially molten rock is buoyant and should segregate towards the surface. This evidence supports the theory that volcanic hotspots like the Hawaiian Islands originate from mantle plumes generated at the Earth's core-mantle boundary.
Geologist Dr Scott Bryan's research found plants and tiny animals including corals latched onto pumice as it traveled over 5000km from Tonga to north-eastern Australia. This journey provided concrete proof that pumice rafting is a significant factor in dispersing marine life.
Geologists and researchers use LiDAR, geochronology, and stratigraphy to uncover the history of earthquakes, volcanism, and tectonic processes in regions like Alaska and Nevada. These findings shed light on Earth's surface evolution and help understand plate tectonics.
A team of researchers led by the University of Saskatchewan discovered that small volcanic eruptions can inject aerosols into the stratosphere, cooling the Earth's surface. The study used data from the Canadian Space Agency's OSIRIS instrument to analyze the effects of a 2011 eruption in Eritrea.
A £3 million project will focus on six volcanoes in Latin America and the Caribbean, integrating community experience with scientific approaches to reduce risk. The study aims to develop novel risk analyses and models to mitigate the impact of volcanic activity on people and assets.
Researchers study tectonic tilting in the Bahamas and its implications for hydrocarbon reservoirs. A new study demonstrates interhemispheric climate asynchrony during the Holocene era.
Red Whittaker, a pioneer in mobile autonomous robotics, has been awarded the 2012 IEEE Simon Ramo Medal. He has developed over 60 robots that can work in challenging environments, including contaminated nuclear plants, abandoned mines, and active volcanoes.
A modern recurrence of a 'flood lava' eruption in Iceland could inject large quantities of hazardous gases into North Atlantic and European flight corridors. The emissions could exceed WHO chronic exposure guidelines and pose significant health risks to air travelers, particularly if the event were to occur during late spring or summer.
Researchers at Oregon State University used data from underwater hydrophones and seismic analysis to detect an abrupt spike in energy about 2.6 hours before the eruption, suggesting a new method for predicting undersea volcanic activity. The study also revealed insights into the link between magma intrusion and seafloor deformation.
Scientists analyzed magma chamber crystals and correlated them with seismic signals from Mount St. Helens' 1980 eruption, revealing a clear connection between crystal growth and volcanic activity. This study could improve eruption forecasting by providing insights into the timing of magma input and pulses of seismicity.
Researchers at the University of Bristol used forensic-style chemical analysis to directly link seismic observations to crystal growth in a magma chamber. The study found correlations between peak crystal growth and increased seismicity prior to the 1980 Mount St. Helens eruption.
Researchers have made groundbreaking discoveries about ancient geological events. Green rust formations were found in Indonesia, while historical sulfide concentrations were reconstructed in the Black Sea using molybdenum isotopes, providing new insights into past environmental conditions.
A materials scientist at Michigan Technological University has discovered an exothermic reaction that converts carbon dioxide into solid carbon nitride and lithium cyanamide, a precursor to fertilizers. The process releases significant energy, potentially mitigating climate change by utilizing CO2 instead of fossil fuels.
Researchers used LIDAR technology to track the volcanic ash cloud's movement and composition, revealing a mix of fine and thick particles. The study aimed to improve air navigation safety and provide valuable data for crisis management.
Researchers have reevaluated the Yellowstone volcano's history, finding that its biggest eruption was actually two separate events 6,000 years apart. This new understanding may lead to a revised likelihood of another large eruption in the future.
A NASA animated video shows a week's worth of ash and gas clouds emitted from Mexico's Popocatepetl Volcano, with most debris blowing to the southeast. The volcano's alert level remains at 'Yellow Phase Three' due to potential explosive activity.