Alaska’s North Slope is also rich in other natural resources: oil, gas, minerals. But one important thing is lacking: rocks.

It has operations in Australia, Papua New Guinea (PNG), Timor-Leste — and in Alaska, where it owns 51% of the Pikka prospect on the western North Slope and is the project’s operator.

Researchers interpreted undulations in this sandstone to be cross-sections of dinosaur tracks. The geology hammer, for scale, is 33 centimeters long. Fiorillo, McCarthy, et al. Geosciences 2024 ...