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

Geoscience Australia - Client Services
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Spatial representation type
Topic category
  • Geoscientific information

Extent

Extent

N
S
E
W


Maintenance and update frequency
As needed
Keywords (Theme)
  • 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)
  • World

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

Geoscience Australia - Client Services
>

Point of contact

- ()

Type of resource

Resource scope
Dataset

Metadata linkage

Function
Complete Metadata
Metadata linkage
http://portal.auscope.org/geonetwork/srv/api/records/177abe2c-9efe-4fd2-a66e-0f1e099c3047

Date info (Revision)
2022-10-25T02:20:38
Date info (Creation)
2022-11-03T07:07:13

Metadata standard

Title
ISO 19115-3
 
 

Overviews

Spatial extent

N
S
E
W


Keywords

GADDS airborne survey geophsyical survey line data magnetics magnetism marine survey raster data reduced to the pole total magnetic intensity variable reduction to the pole

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