What does lava look like after it has cooled underwater? Well, it looks like this. These pillow lavas were imaged in 2017 (#TBT!) at Vailulu'u Seamount, within National Marine Sanctuary of American Samoa. Scientists think the lava flows are likely less than five years old, meaning they are pretty young (geologically speaking). The lava erupted and was instantly cooled by the chilly seawater — creating a snapshot in time. Learn more here: https://oceanexplorer.noaa.gov/okeanos/explorations/ex1702

Types of Mountains Unit | Worksheets, Sorting Activity & Google Slides | 4th Gr.

What do you call a hill on the seabed? Maybe it’s a volcano, or is it a seamount? How can we know that we’re talking about the same thing? Seabed geomorphology is the study of physical seabed features and the processes that formed them. And because seabed features transcend national boundaries, it’s important we take an international approach to ensure everyone is using the same terminology. We have led an international collaboration with partners at the British Geological Survey, INFOMAR, Marin