The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

The R502 series of maps has been replaced by the National Topographic Map Series (NTMS). The R502 series consists of 542 map sheets and covers Australia at a scale of 1:250,000. It was compiled from aerial photography, but only about one quarter of the series was contoured. The standard sheet size is 1 degree of latitude by 1.5 degrees of longitude. Transverse Mercator map projection and Clark 1858 datum were used. Coverage of the country was completed in 1968.

These documents have been scanned by the GA Library. Please refer to the document for contents.

This report gives a brief review of the different types of continental phosphate deposits; particular examples are described and their associated rocks noted as an as an aid.to the recognition of similar deposits which may exist in Australia

This Record describes the operation of the magnetic and seismic observatories at Wilkes, Antarctica, during 1960. Some of the problems met are discussed and some recommendations are made. Tabulated results of the scientific work will be published later in separate reports.

Chemical investigations at the geological laboratory during the year 1959.

There is an aggregate outcrop of 12,000 square miles of Permian-Triassic acid igneous rocks inland from Cairns and Townsville, North Queensland. The rocks consist of ignimbrite and rhyolite, which are structurally and magmatically related to three high-level intrusions the Herbert River, Esmeralda, and Elizabeth Creek Granites. This report describes the emplacement of the acid magma in the epizone, and the relationship with the ignimbrites.

Ironstone occurs at a particular horizon within the Lower Proterozoic sediments in the Brooks Creek area of the Northern Territory. East of the Cosmopolitan Howley Mine, preliminary investigation of the ironstone, to assess its value as a source of iron ore, showed a possible reserve of 1000 tons of hematitic material per vertical foot over a length of 1500 feet.