ROV Dive S0475 - Auka Vent Field

Join ROV SuBastian from the RV Falkor for the fourteenth dive of the Interdisciplinary Investigation of the Pescadero Basin expedition. This is the sixth dive of the third leg, primarily focused on the biological component. The Auka Vent Field in the South Pescadero Basin consists of three large mounds - actively venting, steep-sided edifices 12–25 m high, with base diameters of 15–50 m. One of the largest, is a high-temperature vent (~207 °C) named P Vent. This dive has four primary objectives: (1) survey P vent (last visited in 2015), (2) collect rocks, animals, and, if possible, push cores from P vent (3) obtain combined ti-major and gas tight vent fluid samples from P vent, then (4) travel to a bacterial mat site NW of Z vent sampled on dive S0471 to collect additional push cores and corresponding temperature profiles.. #PescaderoVentDiving2