Feature Type

Feature Type Name




Glacially transported stones and boulders. Erratics may be embedded in till or occur on the ground surface. They range in size from pebbles to huge boulders weighing thousands of tons. Their transport range from less than 1 km to more than 800 km. Erratics composed of distinctive rock types can be traced to their point of origin and serve as indicators of glacial flow direction.


Australia adopts the Geoscience Australia "Geoscience Data Dictionary" for geological feature classes located on the web at: http://www.agso.gov.au/general/technotes/20011112_53.jsp

Table Name


Australia's Implementation Table Names


The following have been used in the definition of this feature type

  • Lapidus, D.F. and Winstanley, I., COLLINS Dictionary of Geology, HarperCollins Publishers, 1990, UK.

The following have been used in categorising this feature type

  • Geology
Code Name Definition   Data type Values UoM Used by these Feature Types
1005 Age   Mandatory number(10)   years Types
1042 Dataset_Id An unique identifier of the dataset the feature belongs to Mandatory number(4)     Types
1054 Description Describing, verbal portrait, of a person, object, or event Mandatory character(100)     Types
1055 Diameter Straight line passing from side to side of any body of figure through centre, traverse measurement, width, thickness Mandatory number(4)   millimetres Types
1082 Foreign Situated outside, coming from another district, society, etc. Mandatory character(50)
label Definition
Foreign Situated outside, coming from another district, society, etc.
1150 Q_Info An unique identifier pointing to additional data quality information not included in the metadata record. Mandatory number(5)     Types