pl23_expl1161.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23expl1161jpgDescription
Galapagos 2005 Expedition. The calcium carbonate shells of tiny sea creaturesliving at the sea surface fall to the seafloor as light-colored sediment when these organisms die. As time passes, this sediment accumulates on thesurfaces of the volcanic rocks far below.
Credit
Image courtesy of UCSB, Univ. S. Carolina, NOAA, WHOI.
Collection
Voyage to Inner Space
Keywords
Ocean Exploration