Skip to main content
U.S. flag

An official website of the United States government

Bed of manganese nodules

Detailed Description

A bed of manganese nodules from deep offshore of the Cook Islands. Each color bar in the staff represents 10 centimeters.


Public Domain.

Critical metals in manganese nodules from the Cook Islands EEZ, abundances and distributions
Article by Hein, et al., 2015, Ore Geology Reviews; photo taken during a research cruise in 2000.