I just got back from a 4 day field trip to the Long Valley Caldera in eastern California, so I’m a little behind on posting. The field trip was great and I had a chance to see a lot of pumice, a lot of welded tuff (in the form of the Bishop Tuff, the large ignimbrite that erupted from the Long Valley Caldera ~760,000 years ago) and got to lead the part that looked at the Mono domes (too bad snow covered the Inyo Domes). Pictured above some puffed obsidian – the layers are obsidian and vesicle-rich obsidian – that were erupted, cooled, expanded and cracked (known as “breadcrusting“). This is part of Panum Crater, the youngest of the Mono domes that comes in at ~600-650 years old.
It’s the very closest stars to us that hold the key to unlocking the possibilities for life in star systems all throughout the Universe.
People living in non-industrialized societies don’t get pimples.