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Sea-Floor Sunday #5: Submarine volcanoes in the Kermadec Arc

November 25, 2007

I don’t have a lot of information on today’s installment of Sea-Floor Sunday. I simply was searching around on the internet for interesting images.

I found these from a great site that summarizes a recent set of research cruises called the New Zealand American Submarine Ring of Fire 2005 (NZASRoF’05) Expedition. NOAA’s Ocean Explorer website about these cruises and associated submersible dives can be found here.

Here’s a blurb from the NZASRoF’05 site:

The submersibles will be used to explore the geology, biology and chemistry of submarine volcanoes along the largely unexplored Kermadec Arc that extends N-NE of New Zealand’s North Island. These volcanoes and the adjacent Kermadec Ridge lie westward of the 800 mile-long Kermadec Trench, where the western edge of the vast Pacific plate descends beneath the Australasian plate to the west

The images below are of two submarine volcanoes along the Kermadec Arc, northeast of New Zealand. Click on them for a bigger version.

sss5_subvolc1.jpg

The 3D perspective image below is from the same data and looking to the northeast. The distance between the center of the two cones is about 5 km.

sss5_subvolc2.jpg

This page from the NOAA webpage discusses these images a little more.

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