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
Role Organisation Electronic mail address
Point of contact

Geoscience Australia
Spatial representation type
Vector
Topic category
  • Geoscientific information

Extent

Extent

Maintenance and update frequency
As needed
Keywords

  • 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

Place

  • World

Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research

  • Earth Sciences

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

Metadata

Metadata identifier
urn:uuid/5b542a1f8a1e1f2226876fe733fb5cfabb07f256

Language
English
Character encoding
anyValidURI
Contact
Role Organisation Electronic mail address
Point of contact

Geoscience Australia
Point of contact

Type of resource

Resource type
Dataset

Metadata linkage

Function
Complete Metadata
Metadata linkage

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

Date info (Revision)
2023-08-18T07:56:01
Date info (Creation)
2026-04-03T00:00:06

Metadata standard

Title

ISO 19115-3

 
 

Spatial extent

Keywords

Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research

Earth Sciences


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