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Geophysical Survey Datasets - Magnetic
Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. Once processed and enhanced, magnetic data can be used to locate structural features such as dykes and faults. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose
Simple
Identification info
- Status
Point of contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Extent
))
- Maintenance and update frequency
- As needed
- Keywords (Theme)
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- magnetism
- magnetics
- geophsyical survey
- airborne survey
- marine survey
- total magnetic intensity
- reduced to the pole
- variable reduction to the pole
- line data
- raster data
- GADDS
- Keywords (Place)
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- Earth Science
- Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
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- Earth Sciences
Resource constraints
- Access constraints
- Other restrictions
- Other constraints
- © Commonwealth of Australia (Geoscience Australia) 2019. This product is released under the Creative Commons Attribution 4.0 International Licence
Resource constraints
- Use limitation
- https://creativecommons.org/licenses/by/4.0
- Access constraints
- Licence Unrestricted
- Use constraints
- Licence Unrestricted
- Language
- English
- Character encoding
- UTF8
Distribution Information
- OnLine resource
-
gadds:geophysical_datasets_magnetic
Geophysical Survey Datasets - Magnetic
Resource lineage
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG:4326
Reference System Information
- Reference system identifier
- CRS:84
Metadata
- Metadata identifier
- urn:uuid/c07f45a1004aa751a5280f27d0a6a706607b820d
- Language
- English
- Character encoding
- anyValidURI
Point of contact
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
- https://portal.auscope.org.au/geonetwork/srv/eng/catalog.search#/metadata/c07f45a1004aa751a5280f27d0a6a706607b820d
- Date info (Revision)
- 2023-08-18T07:39:09
- Date info (Creation)
- 2022-12-16T01:52:32
Metadata standard
- Title
- ISO 19115-3
Overviews
Spatial extent
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