Extensive Volcanism Associated with the Separation of Australia and Antarctica

• Published in: Science
• Main Authors: Jones, J. B., Fitzgerald, M. J.
• Format: Article in Journal/Newspaper
• Language: English
• Published: American Association for the Advancement of Science (AAAS) 1984
• Subjects: Blanche; Blanche Point; Gull Rock; New Zealand; Antarc*; Antarctica
• Online Access: http://dx.doi.org/10.1126/science.226.4672.346; https://www.science.org/doi/pdf/10.1126/science.226.4672.346

Alternating hard and soft layers characterize the Gull Rock and Tuit Members of the late Eocene Blanche Point Formation, South Australia. Originally the formation was mainly a mixture of volcanic ash, sponge spicules, and calcareous fossil remains, with hard layers produced later by selective silici...