This is an olivine grain that has typical Kīlauea summit eruption compositions. When magma cools prior to eruption, crystals grow and develop chemical zones that record changes in the ...

Olivine crystals analyzed from the first episode ... cores and rims that could suggest magmatic transfer from multiple magma storage regions beneath the summit. These differences in crystal ...

Long-quiet volcanoes in the Cascades region of the Pacific Northwest are still underpinned by large reservoirs of magma, new research finds. The findings have implications for monitoring volcanoes ...

The Krafla Magma Testbed (KMT) in Iceland is one of the first to attempt to drill into a magma chamber. This endeavour is planned for 2027 and would establish an underground magma chamber of about 2.1 ...

Magma is on the move beneath Yellowstone National Park’s Upper Geyser Basin in Wyoming and throughout the caldera but is unlikely to contribute to an eruption. Credit: Jim Peaco/NPS Magma deep ...

In the asthenosphere, molten olivine moves with a convection current ... formed when crystals of silicon cool out of the magma that makes up our planet's interior. Peridot forms in the presence ...

The rest of the magma then crystallized to create Mercury’s middle mantle and outer crust ... The new experiments showed that minerals like olivine probably formed in Mercury’s mantle, which aligns ...

Near-daily sampling of volcanic ash during a three-month eruption reveals shifts in mantle-derived liquid magma (melt) composition, highlighting its potential as a monitoring and forecasting tool.

This week's contribution is from Scott K. Johnson, Science Communication Associate at EarthScope Consortium. A number of studies have given us fascinating images showing Yellowstone’s magma reservoirs ...

This helps explain how magma forms within the mantle and how ... As the seawater hits the minerals, the olivine and pyroxene within the periodite turn into serpentine minerals and produce ...