This layer contains lines that complement the geology data, but are not classified as geological features (eg, coastline and other water boundaries, limits of mapping or available data), compiled at 1:1M scale. This layer is limited to display only at scales greater than 1:1,500,000.

Lines that represent contacts between geologic units(eg, depositional, intrusive and faulted contacts), compiled for use at or around 1:2.5M scale. This layer is limited to display only at scales between 1:1,500,000 and 1:20,000,000.

This data set is a classification of the Australian continent into 2-dimensional surface regions (Shaw et al, 1998). A geological region is a relatively large geographical area with a cohesive, albeit in some cases complex, geological assemblage (Bain and Draper 1997, AGSO Bulletin 240); significantly different in overall geology from the adjoining regions, and differs from a geological province in that it does not include depth or time dimensions.

Lines that represent contacts between geological units (eg, depositional, intrusive and faulted contacts), compiled for use around 1:1M scale. This layer is limited to display only at scales greater than 1:1,500,000.

This layer contains lines that complement the geology data, but are not classified as geological features (eg, coastline and other water boundaries, limits of mapping or available data), compiled for use at or around 1:2.5M scale. This layer is limited to display only at scales less than 1:1,500,000.

Surface geological units (outcrop or near-outcrop bedrock and surficial regolith units) symbolised by age, compiled for use around 1:1M scale. This layer is limited to display only at scales greater than 1:1,500,000.

Surface geological units (outcrop or near-outcrop bedrock and surficial regolith units) symbolised by age, compiled at 1:2.5M scale. This layer is limited to display only at scales less than 1:1,500,000.

Fault and shear structures, represented as lines, compiled for use at or around 1:2.5M scale. This layer is limited to display only at scales between 1:1,500,000 and 1:20,000,000.

Fault and shear structures, represented as lines, compiled for use around 1:1M scale. This layer is limited to display only at scales greater than 1:1,500,000.

This digital data set was created from a 1:5,000,000 scale map published in 1983, that depicts the distribution of metamorphic facies in Australia. The original map was compiled between 1972 and 1983 by T.G. Vallance, G.W. DAddario, A.J. Stewart, J.E. Mitchell, J.F. Stirzaker, and A.S.Mikolajczak using data supplied by BMR, State and Territory Geological Surveys, Universities and the Geological Society of Australia