Expeditions
n through fast-spreading oceanic crust. 2012: MSM 20/5: North Pond © Universität Bremen Map section of the survey area of the Merian expedition MSM20/5 © Universität Bremen Schematic and image of a CORK [...] and biological samples at hydrothermal vents on the Mid-Atlantic Ridge between 29 ° 10' 'N and 38 ° 20' 'N . The springs in this area are characterized by very different geological settings, and the fluids [...] important for cooling of the lithosphere, chemical exchange between crust and ocean, and marine ecosystems. This circulation requires basement outcrops that form pathways through impermeable