Current Magma News and Events

Current Magma News and Events, Magma News Articles.
Sort By: Most Relevant | Most Viewed
Page 1 of 16 | 611 Results
Wet and wild: There's lots of water in the world's most explosive volcano
Conditions inside the Shiveluch volcano include roughly 10%-14% water by weight (wt%), according to research from Washington University in St. Louis. Most volcanoes have less than 1% water. For subduction zone volcanoes, the average is usually 4%, rarely exceeding 8 wt%, which is considered superhydrous. (2021-01-22)

Research finds tiny bubbles tell tales of big volcanic eruptions
Microscopic bubbles can tell stories about Earth's biggest volcanic eruptions and geoscientists from Rice University and the University of Texas at Austin have discovered some of those stories are written in nanoparticles. (2021-01-19)

Understanding origins of Arizona's Sunset Crater eruption of 1,000 years ago
ASU School of Earth and Space Exploration scientist Amanda Clarke and her team have been working to solve the mysterious root cause of the Sunset Crater eruption and any lessons learned to better understand the threats similar volcanoes may pose around the world today. But as to why it erupted, that has remained a mystery, until now. Clarke's group is among the first to show the importance of carbon dioxide in volcanic eruptions. (2021-01-11)

Reawakened geyser does not foretell Yellowstone volcanic eruptions, study shows
Geyser eruptions, like volcanic eruptions, are a mystery, so the reactivation of Steamboat Geyser in Yellowstone in 2018 provided an opportunity to explore why geysers turn off and on, and what determines their periodicity. A team led by UC Berkeley researchers found little evidence of magma moving below the geyser, meaning no sign of imminent hydrothermal eruptions, but did discover a relationship between the height of the column and the depth of the water reservoir. (2021-01-04)

Crystals may help reveal hidden Kilauea Volcano behavior
Stanford researchers used millimeter-sized crystals from the 1959 eruption of Hawaii's Kilauea Volcano to test models that offer insights about flow conditions prior to and during an eruption. (2020-12-04)

Almost like on Venus
A team of international scientists led by ETH researcher Paolo Sossi has gained new insights into Earth's atmosphere of 4.5 billion years ago. Their results have implications for the possible origins of life on Earth. (2020-11-25)

Cascading events led to 2018 Kīlauea volcanic eruption, providing clues for forecasting
The 2018 eruption of Kīlauea Volcano was one of the largest volcanic events in Hawai'i in 200 years. This eruption was triggered by a relatively small and rapid change at the volcano after a decade-long build-up of pressure in the upper parts of the volcano, according to a recent study published in Nature Communications by earth scientists from the University of Hawai'i at Mānoa and U.S. Geological Survey. (2020-11-23)

Piecing together the Alaska coastline's fractured volcanic activity
Among seismologists, the geology of Alaska's earthquake- and volcano-rich coast from the Aleutian Islands to the southeast is fascinating, but not well understood. Now, with more sophisticated tools than before, a University of Massachusetts Amherst team reports unexpected new details about the area's tectonic plates and their relationships to volcanoes. (2020-11-17)

Large volcanic eruption caused the largest mass extinction
Researchers in Japan, the US and China say they have found more concrete evidence of the volcanic cause of the largest mass extinction of life. Their research looked at two discrete eruption events: one that was previously unknown to researchers, and the other that resulted in large swaths of terrestrial and marine life going extinct. (2020-11-10)

Crystals reveal the danger of sleeping volcanoes
Most active volcanoes on Earth are dormant and are normally not considered hazardous. A team of volcanologists from the University of Geneva has devised a technique that can predict their devastating potential. The scientists used zircon, a tiny crystal contained in volcanic rocks, to estimate the volume of magma that could be erupted once Nevado de Toluca volcano (Mexico) will wake up from its dormancy. Up to 350 km3 of magma are currently lying below. (2020-11-05)

Supersonic winds, rocky rains forecasted on lava planet
Among the most extreme planets discovered beyond the edges of our solar system are lava planets: fiery hot worlds that circle so close to their host star that some regions are likely oceans of molten lava. According to scientists, the atmosphere and weather cycle of at least one such exoplanet is even stranger, featuring the evaporation and precipitation of rocks, supersonic winds that rage over 5000 km/hr, and a magma ocean 100 km deep. (2020-11-03)

Magma 'conveyor belt' fuelled world's longest erupting supervolcanoes
International research led by geologists from Curtin University has found that a volcanic province in the Indian Ocean was the world's most continuously active -- erupting for 30 million years -- fuelled by a constantly moving 'conveyor belt' of magma. (2020-11-03)

Deep magma facilitates the movement of tectonic plates
A small amount of molten rock located under tectonic plates encourages them to move. This is what scientists from the LGL-TPE (CNRS/ENS de Lyon/UCBL1) have recently discovered. Their new model takes into account not only the velocity of seismic waves but also the way in which they are attenuated by the medium they pass through. The velocity of tectonic plates near the surface is thus directly correlated with the quantity of magma present. (2020-10-21)

Deep learning artificial intelligence keeps an eye on volcano movements
RADAR satellites can collect massive amounts of remote sensing data that can detect ground movements -- surface deformations -- at volcanoes in near real time. These ground movements could signal impending volcanic activity and unrest; however, clouds and other atmospheric and instrumental disturbances can introduce significant errors in those ground movement measurements. Now, Penn State researchers have used artificial intelligence (AI) to clear up that noise, drastically facilitating and improving near real-time observation of volcanic movements and the detection of volcanic activity and unrest. (2020-10-15)

Stressed out volcanoes more likely to collapse and erupt, study finds
An international study led by Monash scientists has discovered how volcanoes experience stress. The study, published in Scientific Reports, has implications for how the world might be better protected against future volcano collapses. (2020-10-15)

Earth grows fine gems in minutes
Some of Earth's finest gemstones grew in a matter of minutes. Rice University geologists made that discovery while investigating mineral formations that are rich in lithium and rare metals. The research appears this week in Nature Communications. (2020-10-06)

Nanocrystals make volcanoes explode
Tiny crystals, ten thousand times thinner than a human hair, can cause explosive volcanic eruptions. This surprising connection has recently been discovered by a German-British research team led by Dr. Danilo Di Genova from the Bavarian Research Institute of Experimental Geochemistry & Geophysics (BGI) at the University of Bayreuth. (2020-09-24)

Uncovering new understanding of Earth's carbon cycle
A new study led by a University of Alberta PhD student--and published in Nature--is examining the Earth's carbon cycle in new depth, using diamonds as breadcrumbs of insight into some of Earth's deepest geologic mechanisms. (2020-09-23)

UAlberta researchers pinpoint how iron deposits form
University of Alberta scientists have uncovered the formation mechanism behind a class of mineral deposits that have been hotly contested until now. The findings shed new light on how iron deposits, among others, form--and this new understanding can aid geologists in the hunt for more ore. (2020-09-23)

Bristol scientists shine light on tiny crystals behind unexpected violent eruptions
In a new study of volcanic processes, Bristol scientists have demonstrated the role nanolites play in the creation of violent eruptions at otherwise 'calm' and predictable volcanoes. The study, published in Science Advances, describes how nano-sized crystals (nanolites), 10,000 times smaller than the width of a human hair, can have a significant impact of the viscosity of erupting magma, resulting in previously unexplained and explosive eruptions. (2020-09-23)

OBS deep seismic survey uncovered crustal structure mystery of NW sub-basin of the SCS
The formation and evolution history of Northwestern sub-basin has many different opinions due to its own short-period spreading and strong volcanic activities. This research has provided the evidences from deep velocity structures in the Northwestern sub-basin. (2020-09-15)

Rebirth of a volcano
Continued volcanic activity after the collapse of a volcano has not been documented in detail so far. Now and for the first time, researchers from the German Research Center for Geosciences GFZ and Russian volcanologists are presenting the results of a photogrammetric data series spanning seven decades for the Bezymianny volcano, Kamchatka, in the journal ''Nature Communications Earth and Environment''. (2020-09-10)

Pumice arrives delivering "vitamin boost" to the reef
The giant pumice raft created by an underwater volcanic eruption last August in Tonga has begun arriving on the Australian eastern seaboard, delivering millions of reef-building organisms that researchers say could be a ''vitamin boost'' for the Great Barrier Reef. (2020-08-19)

Oregon study rewrites the recent history of productive Cascade Arc volcanoes
Volcanic eruptions in the Cascade Range of the Pacific Northwest over the last 2.6 million years are more numerous and closely connected to subsurface signatures of currently active magma than commonly thought, according to newly publish research. (2020-08-14)

Scientists reveal an explosive secret hidden beneath seemingly trustworthy volcanoes
An international team of volcanologists working on remote islands in the Galápagos Archipelago has found that volcanoes which reliably produce small basaltic lava eruptions hide chemically diverse magmas in their underground plumbing systems - including some with the potential to generate explosive activity. These volcanoes might undergo unexpected changes to sudden such activity in the future. (2020-07-28)

Photos may improve understanding of volcanic processes
The shape of volcanoes and their craters provide critical information on their formation and eruptive history. Techniques applied to photographs -- photogrammetry -- show promise and utility in correlating shape change to volcanic background and eruption activity. (2020-07-20)

Uplifting of Columbia River basalts opens window on how region was sculpted
Information drawn from analyses of oxygen and hydrogen isotopes of materials from exposed Columbia River basalts has provided insights about how magma from volcanic eruptions millions of years ago shaped the region and why those eruptions did not trigger a global extinction event. (2020-07-17)

How volcanoes explode in the deep sea
Explosive volcanic eruptions are possible deep down in the sea -- although the water masses exert enormous pressure there. An international team now reports how this can happen. (2020-06-29)

3D magnetotelluric imaging reveals magma recharging beneath Weishan volcano
Researches have succeeded in obtaining a high-resolution 3D resistivity model of approximately 20 km depth beneath the Weishan volcano in the Wudalianchi volcanic field (WVF) for the first time. The study evealed the image of potential magma chambers and the estimated melt fractions. (2020-06-28)

New research reveals how water in the deep Earth triggers earthquakes and tsunamis
In a new study, published in the journal Nature, an international team of scientists provide the first conclusive evidence directly linking deep Earth's water cycle and its expressions with magmatic productivity and earthquake activity. (2020-06-24)

The Kerguelen oceanic plateau sheds light on the formation of continents
How did the continents form? Although to a certain extent this remains an open question, the oceanic plateau of the Kerguelen Islands may well provide part of the answer, according to a French-Australian team led by the Géosciences Environnement Toulouse laboratory (CNRS/Université Toulouse III-Paul Sabatier/IRD/CNES). (2020-06-19)

Scientists review the metallogenesis and challenges of porphyry copper systems above subduction zone
Porphyry copper ± molybdenum ± gold deposits (PCDs) are the most economically important magmatic-hydrothermal metallogenic system above subduction zones, which have supplied nearly 3/4 of the world's copper, 1/2 of the molybdenum and 1/5 of the gold, as well as large amounts of silver, zinc, tin and tungsten, with however their metallogenesis remaining controversial. Now researchers in Guangzhou have reviewed the recent progress in understanding the metallogenesis and remaining challenges of PCDs. (2020-06-15)

New hints of volcanism under the heart of northern Europe
Scientists have discovered new evidence for active volcanism next door to some of the most densely populated areas of Europe. The study 'crowd-sourced' GPS monitoring data from antennae across western Europe to track subtle movements in the Earth's surface, thought to be caused by a rising subsurface mantle plume. The work is published in Geophysical Journal International. (2020-06-09)

Study proves that magma chambers can be totally molten
The paper shows that basaltic magma chambers may develop as large bodies of crystal-free melts in the Earth's crust. This study challenges a recently-emerged paradigm that magma chambers are huge masses of crystal-rich mush - in other words, crystals with just a very small amount of melt. (2020-06-09)

Chance of finding young Earth-like planets higher than previously thought
Research from the University of Sheffield has found that the chance of finding Earth-like planets in their early stages of formation is much higher than previously thought. (2020-06-05)

Study shows diamonds aren't forever
Two Tulane researchers were among a team of international experts who co-authored a paper that was published in the journal Nature on June 3. (2020-06-04)

Researchers reveal largest and hottest shield volcano on Earth
Researchers from the University of Hawai'i at Mānoa revealed the largest and hottest shield volcano on Earth--Pūhāhonu, a volcano within the Papahānaumokuākea Marine National Monument. (2020-05-14)

A tale of two kinds of volcanoes
At an idyllic island in the Mediterranean Sea, ocean covers up the site of a vast volcanic explosion from 3200 years ago. A few hundred kilometers north-west, three other islands still have their volcanic histories from a few million years ago mostly intact. No explosions there. So why the differences between the Santorini caldera and the Aegina, Methana and Poros lava domes? Researchers used volcanic ''fingerprints' and plate tectonics research to find out why. (2020-05-09)

Research reveals possibly active tectonic system on the Moon
Strange spots scattered across the Moon's nearside where bedrock is conspicuously exposed are evidence of seismic activity set in motion 4.3 billion years ago that could be ongoing today, the researchers say. (2020-04-30)

New study takes the pulse of a sleeping supervolcano
Under the volcanoes in the Andes where Chile, Argentina and Bolivia meet, there is a gigantic reservoir of molten magma. For several million years, it has been there without fully solidifying or causing a supervolcanic eruption. Geologists have long wondered how this is possible. Researchers from Uppsala University, among others, have now discovered that the secret may be hidden tributaries of hot magma from inside the Earth. (2020-04-23)

Page 1 of 16 | 611 Results
   First   Previous   Next      Last   
Brightsurf.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com.