Patton Seamount

It was originally created near the coast of Oregon by the Cobb hotspot 33 million years ago and was moved to its present location by tectonic plate movement.

Patton Seamount lies near the northwestern edge of the chain, in the Gulf of Alaska, and is 33 million years of age, among the oldest in the group.

[2] Patton itself is over 10,000 ft (3,000 m) tall and 2 mi (3 km) wide at is base, and originally formed off the coast of Washington 33 million years ago.

[3] Dives indicate that the structure of Patton Seamount is rough near the top, with many boulders, and consists of much broader, finer particulates near the ocean bottom.

[4] Limited-scale fishing operations and scientific investigations were carried around in the 80s and 90s, mostly due to the rough nature of the seamounts, and the difficulty of sampling at such depths.

July 1999 marked the first detailed observations on the seamount, in an expedition based on the RV Atlantis and utilizing the DSV Alvin.

Segmented basalt on Patton Seamount. A small coral and squid can also be seen to the lower right.
A male specimen of large-clawed spider crab ( Macroregonia macrochiera ) collected on Patton Seamount during the 2002 expeditions, at a depth of 3,300 m (10,827 ft). This is the deepest that they have yet been observed. [ 5 ]