Adriana Ocampo has led six research expeditions to study what geological formation that is more than 180 km in diameter and 20 km in depth
Chicxulub crater The Chicxulub crater ( ; ] ) is an impact crater buried underneath the Yucatán Peninsula in Mexico. Its center is located near the town of Chicxulub, after which the crater is named. It was formed by a large asteroid or comet about 10 to 15 kilometres (6 to 9 miles) in diameter, the Chicxulub impactor, striking the Earth. The date of the impact coincides precisely with the Cretaceous–Paleogene boundary (K–Pg boundary), slightly less than 66 million years ago, and a widely accepted theory is that worldwide climate disruption from the event was the cause of the Cretaceous–Paleogene extinction event, a mass extinction in which 75% of plant and animal species on Earth suddenly became extinct, including all non-avian dinosaurs. The crater is more than 180 km in diameter and 20 km in depth, well into the continental crust of the region of about 10–30 km depth. It makes the feature the third of the largest confirmed impact structures on Earth.
Olstad Glacier Olstad Glacier ( ) is a heavily crevassed glacier descending to the west coast of Peter I Island about 2 nautical miles (3.7 km) south of Tofte Glacier. Peter I Island was circumnavigated by the Norwegian whale catcher "Odd I" in January 1927 and was explored from the "Norvegia" in February 1929. The glacier is named for Ola Olstad, Norwegian zoologist who, transported by various whaling ships, conducted research in South Georgia, South Shetland Islands and Palmer Archipelago in 1927-28.