substrate composition
-
Representative image using: iron oxide -
Representative image using: hydrothermal sediment and bacterial floc mixture -
Representative image using: hydrothermal alteration -
Representative image using: cobble -
Representative image using: spatter -
Representative image using: pumice -
Representative image using: manganese crust -
Representative image using: Monterey formation -
Representative image using: hydrothermal crust -
Representative image using: ponded sediment -
Representative image using: dropstone -
Representative image using: ash
