News from the Field: Day 4--White Mountains and Bristlecone Pine Preserve

Another great breakfast at WMRS, and off to begin our exploration of the Long Valley Caldera and the cataclysmic Bishop Tuff eruption--one of the greatest volcanic events of geological history. Connie Millar from the US Forest Service again joined us for the day. We started with a stop at the Bishop pumice quarry for a close-up look at the airborne deposits of the great eruption, and gradually worked our way closer to the center of the caldera. We then explored an unusual set of deformed lake sediments at Chalk Bluffs, followed by a couple of hours exploring the magnificent exposure of the Bishop Tuff along the Owens River gorge. At the end of the day, we drove to our to our new home, the Sierra Nevada Aquatic Research Lab, better known as SNARL--and a magnificent dinner prepared by our chef, Linda Dore. An evening walk in the moonlight and some nice social time around the SNARL dorm living room!



    May 13th
 
John Rupp starts the day off with a discussion of Long Valley volcanism.
Brandy helps the group explore the ash fall deposits at the Bishop Pumice Quarry
Adam and Megan get up close and personal with the Bishop Tuff
Ganesh records notes on the Bishop Tuff
The group gathers to compare observations and interpretations
While Alicia tries to learn from the rock by osmosis...
The group gathers for a photo--but what's that beneath their feet???
John discusses sediment deformation at Chalk Bluffs
Deformation structures in unconsolidated lake sediments at Chalk Bluffs
Alicia shows off a beautiful example of a pair of normal faults at Chalk Bluffs
The spectacular exposure of the Bishop Tuff at Owens Gorge
The Owens River, continuing to slice its way through the Bishop Tuff.
Tabitha photographs the cliffs, with some rosette jointing in the background
The famous cliffs of Owens Gorge, showing two of the eruption's cooling units
And the strange 'hoodoos' of Owens Gorge
Dan tries his hand at bouldering in the Owens Gorge
A beautiful lunch spot in the middle of the Owens River
The gang gathers for a group photo before the long hike back up the gorge...
Daniel and Ganesh, with the Owens gorge in the background
John and Michael, still smiling after a long day with the gang!
Daniel, Dan, and Jack--the hardy ones--cooling off in the river at the end of the hike
John and Michael enjoy a little adventure on the gravel road back to SNARL
The SNARL dorm--our home away from home for the next couple of weeks.
The beautiful view of the White Mountains from the SNARL dorm