Image Archive

Ash (glass shards) rest atop a leveling component on the bottom pressure tilt instrument at the Central Caldera site. Credit: UW/NSF-OOI/CSSF. V15

The ROCLS cable drum a few meters above the seafloor as it is being lowered by the R/V Thompson's trawl wire. The drum contains >15,000 feet of extension cable. Photo credit: NSF-OOI/UW/CSSF; Dive 1727; V14.

ROCLS with 4.7 km of extension cable, which was laid on Axial, from Primary Node PN3B to the Central Caldera.  Photo credit: Christina Ramirez, University of Washington, V14.

The broadband seismometer (left) and low frequency hydrophone (right) are installed on the floor of Axial Seamount at the Central Caldera Site. The 7-function manipulator of ROPOS is connecting the extension cable to the medium powered junction box. The white bags inssulate the broadband from acoustic "noise" associated with curents flowing over the instrument.

A broadband seismometer and a low-frequency hydrophone placed on a flat basaltic plateau at the Axial Seamount Central Caldera Site, awaiting connection to medium power J-Box MJ03F. On a follow-on dive a 4.6-km cable will be installed. This area is of particular interest because the caldera floor is rapidly being uplifted, suggesting that melt is migrating into the magma chamber below. Credit: UW/NSF-OOI//CSSF; ROPOS Dive R1725; V14.

A marker deployed on ROPOS Dive R 1725 marks the installation location for the broadband seismometer and low frequency hydrophone at the Central Caldera Site. Photo credit: NSF-OOI/UW/CSSF; Dive R1725; V14.

During ROPOS Dive R1724, the junction Box MJ03F was deployed at the Central Caldera Site. It will host a broadband seismometer, a low-frequency hydrophone, and a bottom pressure-tilt instrument suite. Photo credit: NSF-OOI/UW/CSSF; Dive R1726; V14.