The Department of Earth & Environmental Science at the University of Pennsylvania is currently accepting applications for a synthesis postdoctoral investigator. The synthesis postdoc would act as the nucleus of a research team at Penn examining various aspects of fine sediment (and associated carbon and nutrient) transport in the Luquillo Critical Zone Observatory. Potential projects would examine the provenance, age, mineralogy, organic matter content and composition of fine sediment transported and exported from tropical mountain watersheds in Puerto Rico. The postdoc will work alongside Drs. Doug Jerolmack, Alain Plante and Jane Willenbring as well as many other researchers from the broader LCZO community (http://criticalzone.org/luquillo/). Support (competitive salary and benefits) is available for one year, with the possibility of renewal for a second year. Applications will be reviewed until the position is filled, and the expected start date is June 1st, 2014. Interested candidates should send a covering email, CV and names of two references to apla...@sas.upenn.edu.