Macquarie Island geophysical observatory, annual report 1971. Home> Scientific research> Publications> Other> Macquarie Island geophysical observatory, annual report 1971. Summary Authors:McDowell M. Published in: 1973 Category 3: Article Program area: Geosciences McDowell M. (1973) Macquarie Island geophysical observatory, annual report 1971, Bureau of Mineral Resources, Geology and Geophysics Record 1973/150. This content was last updated 8 months ago on 20 February 2026.