The International Ocean Discovery Program (IODP) is now accepting applications for scientific participants on Expedition 385 Guaymas Basin Tectonics and Biosphere aboard the JOIDES Resolution. IODP Expedition 385 will core and log a series of sites in the Guaymas Basin to investigate the relationship of tectonics, magmatism, sedimentation, carbon cycling, and microbial activity. The primary objectives are to: (1) explore the physical and chemical gradients along active and extinct fluid pathways associated with sill emplacement; (2) investigate subsurface microbial communities that are sustained by alteration products, in order to determine how efficiently they capture carbon-bearing alteration products; and (3) advance our understanding of the conditions that limit life in the deep biosphere. The expedition will occur from 19 September to 19 November 2019. Additional information about this expedition can be found on the Expedition 385 webpage. Opportunities exist for researchers (including graduate students) in all shipboard specialties, including but not limited to sedimentologists, micropaleontologists, paleomagnetists, inorganic/organic geochemists, microbiologists, petrologists, petrophysicists, and borehole geophysicists. U.S.-affiliated scientists interested in participating in this expedition should apply to sail through the U.S. Science Support Program, by visiting http://usoceandiscovery.org/expeditions. The deadline to apply is April 15, 2018.

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