Results from E/V Nautilus Expedition NA128 “Cascadia Margin Seep Exploration”: Cascadia Margin Mapping, High-Resolution ROV Multibeam, and Gas/Fluid Sampling

Jeffrey W Beeson1,2, Tamara Baumberger1,2, Susan G. Merle1,2, Anson MacKenzie Antriasian1,2, David A Butterfield3,4, Nathaniel J Buck3,4, Guang-Sin Lu3,4, Kevin K Roe3,4 and Scientific Team of E/V Nautilus Expedition NA128, (1)Oregon State University, Cooperative Institute for Marine Ecosystem and Resource Studies, Newport, United States, (2)NOAA Pacific Marine Environmental Laboratory, Newport, United States, (3)University of Washington, Cooperative Institute for Climate, Ocean & Ecosystem Studies, Seattle, United States, (4)NOAA Pacific Marine Environmental Laboratory, Seattle, United States