Magma
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World
Exact mechanisms of magma origin in volcanic processes explained
(ORDO NEWS) — Scientists from the Imperial College London have explained the exact mechanisms of the origin of magma in volcanic processes using the example of tectonic shifts in the eastern Caribbean. The findings of the observations, described in the journal Science Advances, help to understand the type and speed of volcanic eruptions, the composition of erupted magma, and other mechanisms of volcanic activity. It is known that due to…
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Colossal discovery on Mars could lead to raging magma below the surface
(ORDO NEWS) — Scientists may have just identified the culprit behind signs of recent active volcanism on Mars. Beneath a wide plain called Elysium Planitia, a colossal convection plume 4,000 kilometers (roughly 2,500 miles) wide in the Martian mantle can lift molten magma as far as the surface. This could explain the numerous evidence pointing to Mars of volcanic origin. “Our results indicate that the interior of Mars is geodynamic…
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Yellowstone magma suspected of accumulation at shallow depths
(ORDO NEWS) — Using seismic tomographic modeling, scientists have refined the phase composition and pattern of the distribution of matter in the magma reservoir under the Yellowstone caldera. It turned out that the substance with a larger proportion of the melt is concentrated 3–8 kilometers from the surface. The content of the liquid phase in this magma turned out to be higher than previously thought, and amounted to 16–20 percent.…
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Molten magma discovered on Mars
(ORDO NEWS) — An international team of scientists has discovered signs of recent volcanic activity on Mars. Beneath the surface of the planet, in the region of the Cerberus Fossae faults, there is probably a clot of molten lava that causes marsquakes recorded by the seismometer installed on the InSight spacecraft. Since 2018, when NASA‘s InSight mission deployed the SEIS seismometer, more than 1,300 marsquakes have been recorded. Their epicenters…
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Scientists have discovered an unusual change in the magma of an Icelandic volcano
(ORDO NEWS) — Scientists at the University of California at Santa Barbara have discovered an unusual phenomenon associated with volcanic activity. The results of the corresponding study were published on September 14 in the journal Nature. It is reported that experts analyzed the magma of the Fagradalsfjall volcano in Iceland, which erupted in March 2021. According to the results of the study, the rate of change in key chemical parameters…
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Magma movement detected under São Jorge, Azores
(ORDO NEWS) — The seismic volcanic crisis in the Manadas volcanic fissure system on the island of São Jorge, Azores, Portugal, has been ongoing since March 19, 2022. A noticeable change was recorded on April 6, when volcanic-tectonic earthquakes were detected, indicating the movement of magma at depth. Volcanic alert remains at 4 out of 6. The last eruption of this volcano was in 1808 (VEI 1). On April 6,…
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Role Of Magma In The Birth Of The Atlantic Ocean
(ORDO NEWS) — The Atlantic Ocean was born roughly 200 million years ago when the supercontinent Pangea began to break apart. As continental crust stretched and fractured, oceanic crust took its place. To investigate this rifting process, scientists can analyze the structure of the present-day eastern North American margin, where North America and the Atlantic Ocean meet. The composition of the crust and upper mantle provides clues about geological processes…