Cecile Massiot¹, Iona M McIntosh², Kannikha Parameswari Kolandaivelu³, Aida Farough⁴, Agnes G Reyes¹, Cornel E J de Ronde¹, Susan E Humphris⁵ and Tobias Walter Höfig⁶, (1)GNS Science, Lower Hutt, New Zealand, (2)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (3)Virginia Polytechnic Institute and State University, Blacksburg, VA, United States, (4)Virginia Polytechnic Institute and State University, Geosciences, Blacksburg, KS, United States, (5)WHOI, Woods Hole, MA, United States, (6)Texas A&M University, International Ocean Discovery Program, College Station, TX, United States