In the mid 2000s, I worked a lot in the Tien Shan of Kyrgyzstan with numerous colleagues and friends including Andrey Korjenkov, Ernes Mamyrov, Irina Povolotskaya, Chris Crosby, and Benny Guralnik. These were great times. Benny had joined my team for a summer and we worked together in California and in central Asia. He was a great member of our group: so friendly and also so smart and motivated. He also is a very generous person.
Benny went on to do his Ph.D. at the Department of Earth Sciences, ETH, Zürich, Switzerland. He has completed his work and now has a new paper out in Earth and Planetary Science Letters :
Some like it hot http://www.sciencedirect.com/science/article/pii/S0012821X15002812 - new method enables to reconstruct underground temperatures on timescales of human activity (10,000-100,000 years) and could potentially contribute to better use of geothermal energy, or to safety assurance of nuclear waste disposal. Article OSL-thermochronometry of feldspar from the KTB borehole, Germany.