Collaborative Research: A Piggy-Back Near Bottom Geophysical Survey at 17 deg 24' - 18 deg 37' S using ABE

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9730971 Bradley A night field program using the Autonomous Benthic Explorer (ABE) to survey the seafloor on a previously-funded cruise to 17oS on the East Pacific Rise is proposed. The previously-funded cruise will include ALVIN dives, DSL-120 side-looking sonar, wax coring, and dredging operations to determine the petrological, geochemical, and volcanological aspects of this mid-ocean ridge environment. The use of the ABE should allow the better identification of lavas flows, their morphology, dimensions, and along axis continuity. A magnetometer has been added to the ABE for the purpose of identifying recent, highly magnetized feeder dikes and, potentially, non-magnetized feeder dikes.