AUS GA 2500k GUPoly Lithostratigraphy

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

以岩石地层分类（lithostratigraphic classification）为表征依据的地表地质单元（涵盖露头或近露头基岩与表层风化壳（surficial regolith）单元），按1:250万比例尺编制。该图层仅可在小于1:150万的比例尺下显示。