Marine geology or geological oceanography is the study of the history and structure of the ocean floor. It involves geophysical, geochemical, sedimentological and paleontological investigations of the ocean floor and coastal zone. From Wikipedia
The 1,200-tonne Maka Lahi boulder was carried 200 meters inland by a 50-meter-high tsunami 7,000 years ago, providing critical insights into prehistoric wave dynamics and coastal hazard modeling.
