Nilsen Plateau, Transantarctic Mountains, Antarctica: an update on the Gondwana stratigraphy and structure

ABSTRACT A revised and updated geological map of the Nilsen Plateau and a new geological map of the nearby Mt. Hassel‐Mt. Bjaaland region are presented. The Gondwana succession, overlying pre‐Devonian basement rocks, consists of Permian glacial beds, post‐glacial shales and siltstones, deltaic sandstones, and coal measures succeeded by Triassic flood plain deposits. Jurassic dolerite sills intrude basement rocks and the Permo‐Triassic beds. High‐angle reverse faults displace Permian strata at the southern end of the range, and post‐Jurassic normal faulting affected the whole range.