Feature Type

Feature Type Name




A tabular body of intrustive igneous rock that cuts across the layering or structural fabric of the host rock. Dykes may be fine, medium or or course-grained, depending on their composition and the combination of their size and the length of their cooling period. They vary in size from a few centimetres to kilometres.


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
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 Optional character(100)     Types
1150 Q_Info An unique identifier pointing to additional data quality information not included in the metadata record. Mandatory number(5)     Types