Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Kenneth Befus, assistant ...

Magma reservoir dynamics at Toba caldera, Indonesia, recorded by oxygen isotope zoning in quartz. Scientific Reports , 2017; 7: 40624 DOI: 10.1038/srep40624 Cite This Page : ...

In the quartz sample that they studied, for example, the researchers found that two crystal faces growing from the same fluid at the same time actually formed at rates that differed by a factor of 10.

But these magma cauldrons exist among us and they are very much alive. ... However a new study suggests that tiny quartz crystals hiding amidst volcanic ash and rock might hold the answer to this ...

That is the conclusion of a new microscopic analysis of quartz crystals in pumice taken from the Bishop Tuff in eastern California, which is the site of the super-eruption that formed the Long ...

David Budd, one of the study authors, explained: "Quartz crystals that grow in the magma register chemical and thermodynamical changes in the magmatic system prior to eruption, ...

It starts out as pools granitic magma — molten rock that contains the necessary ingredients for quartz crystals. The magma pushes out towards the surface of the earth, because it is less dense ...