Methane-derived carbonate crusts that form at cold seeps are unique archives of past methane emissions. Seepage histories are recorded in the carbonate minerals that sometimes form unexpected visuals such as in the Scream fabric seen here.
For more information on what carbonate crusts can show us, read the recent article from Himmler et al published in Science Advances.
This photo was submitted by researcher Aivo Lepland.
Photo credit: NORCRUST
Project: NGU/CAGE collaboration