Cross posted at Highly Allochthonous The Yellowstone caldera is home to thousands of geothermal springs and 75% of the world’s geysers, with kilometers-deep groundwater flow systems that tap magmatic heat sources. As that hot groundwater rises toward the surface, it interacts with shallower, cooler groundwater to produce multi-phase mixing, boiling, …
The eruption of Eyjafjallajokull (which means Island Mountain Glacier in Icelandic) started out in March as a relatively quiet and tourist-friendly Hawaiian style eruption. That petered out and then a few days later, the magma reemerged subglacially, producing the spectacular ash-producing phreato-magmatic eruption that has transfixed the world and stranded …
This post is cross-posted at Highly Allochthonous. Please look over there for any comments. Like many North American geobloggers, I’ve recently returned from the Geological Society of America meeting in Portland, Oregon. It was a bittersweet trip for me, as it was a return to my spiritual homeland, where I …
The Watershed Hydrogeology Lab is going to be busy at this year’s Geological Society of America annual meeting in Portland, Oregon in October. We’ve submitted four abstracts for the meeting, I am co-convening a session, and I’ll be helping lead a pre-meeting field trip. I’ll be an invited speaker in …
Though born and raised in the craton of North America, my PhD field work looked at the interplay between volcanism, hydrology, and geomorphology in the Oregon Cascades. I’ll admit that I’ve become a bit of a volcano geek, and the last few weeks have provided some really spectacular eruptions to …