5 weeks 2 days
I'm a Professor of Geology in the School of Geosciences at the University of South Florida in Tampa, FL. I've worked on the igneous and metamorphic geochemistry of convergent plate boundaries my whole career, which mostly means I work on land, as that's where most of those rocks tend to be. However, the Izu-Bonin subduction system is unique in giving us opportunities answer questions about how these kinds of plate boundaries get formed, and how the volcanic arcs that typify them develop. So, I'm now out here on my second IODP research cruise! I sailed on Expedition 352 in 2014, and now I'm participating in Expedition 366. I'll report in as the work schedule here permits on life on an international research cruise, the science we're doing (which is both similar to, and different from what we were doing two years ago!), what they have us doing on the ship and in the labs, and interesting events of the day.
Jeff Ryan's blog
Submitted by Jeff Ryan on Sun, 01/15/2017 - 19:34
Submitted by Jeff Ryan on Tue, 01/10/2017 - 20:19
Submitted by Jeff Ryan on Thu, 01/05/2017 - 22:13
It's been a busy number of days here on the JR since my last post!
Submitted by Jeff Ryan on Tue, 12/27/2016 - 18:35
It's been a rather quiet couple days here on the JR, as the drillers have been diligently drilling what will ultimately become a 200 m cased drill hole with an ROV landing pad on top, for future instrumentation and use as a venue for real-time measurements of the unusual upwelling fluids we encountered at Yinazao Seamount.
Submitted by Jeff Ryan on Fri, 12/23/2016 - 20:22
Submitted by Jeff Ryan on Mon, 12/19/2016 - 14:43
OK - several blogs ago I promised to explain why this was THE Expedition I always wanted to be on, with the teaser that it had a lot to do with Serpentinite.
Serpentinite, formally defined, is a rock made mostly of Serpentine, Serpentine is a common mineral formed during the metamorphism of olivine-rich rocks.
Submitted by Jeff Ryan on Sat, 12/17/2016 - 14:26
Well, it took more than a day to get core on deck!
Submitted by Jeff Ryan on Wed, 12/14/2016 - 18:51
Currently, we're sailing for Yinazao (formerly Blue Moon) Seamount after a partly successful endeavor to un-CORK (i.e. remove a CORK-type fluid flow and analysis instrument package) from Site 1200 on the South Chamorro Seamount, that had been there for 15+ years since it was installed on ODP Leg 195.
Submitted by Jeff Ryan on Mon, 12/12/2016 - 22:28
At 5 AM local time the JR un-moored from our harbor in Guam, the tug pulled it away from the dock, and we set out for our first site, ODP Leg 195 Site 1200, to un-CORK that instrumented hole and prepare it for newer/better instrumentation.
Submitted by Jeff Ryan on Sat, 12/10/2016 - 23:59
And... two years and 10 weeks later; I'm back on the JR