G.L.I.M.P.S.E. Project Cruise
This cruise utilized multidisciplinary operations conducted west of the East Pacific Rise in the vicinity of the Hotu Matua and Sojourn Ridges during Leg 16 of the Cook Expedition (COOK16MV) aboard R/V Melville.
There were two planned legs of the GLIMPSE (Gravity Lineations, Intraplate Melting, Petrologic and Seismic Expedition) cruise; experiments were designed to investigate the origin of non-hotspot, intraplate volcanic ridges and cross-grain gravity lineations. The group sampled rocks, conducted geophysical surveys, and deployed four separate arrays of ocean-bottom seismometers (OBSs). Together, these measurements provided critical information about crust and upper mantle structure and the conditions of melting in the mantle needed to distinguish between competing models of the origin of the enigmatic volcanic ridges and the accompanying gravity lineations.
Brown faculty collaborators:
Other project collaborators:Spahr Webb, Lamont-Doherty Earth Observatory; Charles Langmuir, Lamont-Doherty Earth Observatory; Robert Duncan, Oregon State University
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