A cross-section of a hydrothermal plume over Magic Mountain, which is at the shallowest point of the Southern Explorer Ridge. The plume was mapped using the CTD. Red NTU values indicate a high amount of particulates in the water column, which are a signature of hydrothermal plumes. The black lines are the CTD tow yo track as it is being towed up and down through the water column. The bathymetric profile was derived from the recently-collected EM300 data. Image courtesy of Submarine Ring of Fire 2002, NOAA/OER.
