Polymetallic nodule, also called manganese nodule, rock concretion sea bottom for concentric layers of iron and manganese, metal
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RMID:Image ID:G6PJB6
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John Cancalosi / Alamy Stock PhotoImage ID:
G6PJB6File size:
144 MB (4.6 MB Compressed download)Releases:
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8688 x 5792 px | 73.6 x 49 cm | 29 x 19.3 inches | 300dpiDate taken:
28 April 2016More information:
Polymetallic nodule, also called manganese nodule, rock concretion on the sea bottom formed of concentric layers of iron and manganese hydroxides around a core. The core may be microscopically small and is sometimes completely transformed into manganese minerals by crystallization Blake Plateau, Atlantic ocean, collected in 1970's