Expedition 345: Call for Scientists
Hess Deep Plutonic Crust
December 2012 - February 2013
Application Deadline: December 15, 2011
Scientific Aims: Based on IODP Proposals 551-Full and 551-Add, this expedition aims to understand the nature of gabbroic rocks that formed at the fast-spreading East Pacific Rise (EPR) and test competing hypotheses of magmatic accretion and hydrothermal processes in the lower ocean crust.
(1) the architecture of the oceanic crust inferred from ophiolites and geophysical observations along modern fast-spreading ridges;
(2) the extent and nature of heat and mass fluxes between the asthenosphere, lithosphere, and hydrosphere reservoirs;
(3) how is the lower ocean crust accreted at fast-spreading ridges, and how does this relate to the differentiation of mid-ocean ridge basalts;
(4) where, when, and at what temperature do hydrothermal fluids penetrate into the lower oceanic crust, and what effect do these have on the heat and chemical budgets near the ridge axis; and
(5) how quickly does the lower oceanic crust cool, what is the thermal structure at the ridge axis, and how do the magmatic and hydrothermal systems interact to determine the thermal regime.
Application Process: Scientists interested in participating please consult the
Required documents (PDF only) are:
1) a CV
2) a letter of interest including your specific expertise, previous involvement in DSDP/ODP/IODP expeditions, research interest
3) a publication list
Young researchers must additionally provide a letter of support from their host institution including information on the post-cruise science support: How to achieve the proposed scientific objectives in the future (funding scheme and support from host institution).
Please send a copy of your application documents to the IODP-Canada office ().