Data

Australian National Magnetic Data Collection

Geoscience Australia
Commonwealth of Australia (Geoscience Australia)
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/144635&rft.title=Australian National Magnetic Data Collection&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/144635&rft.description=This data collection are comprised of magnetic surveys acquired across Australia by Commonwealth, State and Northern Territory governments and the private sector with project management and quality control undertaken by Geoscience Australia. Magnetic surveying is a geophysical method for measuring the intensity (or strength) of the Earth's magnetic field, which includes the fields associated with the Earth's core and the magnetism of rocks in the Earth's crust. Measuring the magnetism of rocks, in particular, provides a means for the direct detection of several different types of mineral deposits and for geological mapping. The magnetism of rocks depends on the volume, orientation and distribution of their constituent magnetic minerals (namely magnetite, monoclinic pyrrhotite, maghaemite and ilmenite). The instrument used in magnetic surveys is a magnetometer, which can measure the intensity of the magnetic field in nanoteslas (nT). Magnetic surveys in this collection have been acquired using aircraft or ship-mounted magnetometers and are a non-invasive method for investigating subsurface geology.Maintenance and Update Frequency: annuallyStatement: Source: The data in this collection date back to 1951 when the Bureau of Mineral Resources (BMR) began acquiring airborne magnetic data over onshore Australia. Form: The data are point-located (line) or gridded and include metadata and supporting documentation such as operations and processing reports.&rft.creator=Commonwealth of Australia (Geoscience Australia) &rft.date=2021&rft.coverage=westlimit=112.92; southlimit=-54.75; eastlimit=159.11; northlimit=-9.2402&rft.coverage=westlimit=112.92; southlimit=-54.75; eastlimit=159.11; northlimit=-9.2402&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=GEOPHYSICS&rft_subject=HVC_144635&rft_subject=HVC - High Value Collection&rft_subject=magnetism&rft_subject=geomagnetism&rft_subject=magnetics&rft_subject=total magnetic intensity (TMI)&rft_subject=magnetic anomaly&rft_subject=magnetic field&rft_subject=potential field&rft_subject=point located data&rft_subject=line data&rft_subject=gridded data&rft_subject=airborne&rft_subject=ship-borne&rft_subject=Australia-wide Airborne Geophysical Survey (AWAGS)&rft_subject=Geophysics&rft_subject=HVC&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/by/4.0

Creative Commons Attribution 4.0 International Licence

CC-BY

4.0

http://creativecommons.org/licenses/

Australian Government Security ClassificationSystem

https://www.protectivesecurity.gov.au/Pages/default.aspx

WWW:LINK-1.0-http--link

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Brief description

This data collection are comprised of magnetic surveys acquired across Australia by Commonwealth, State and Northern Territory governments and the private sector with project management and quality control undertaken by Geoscience Australia. Magnetic surveying is a geophysical method for measuring the intensity (or strength) of the Earth's magnetic field, which includes the fields associated with the Earth's core and the magnetism of rocks in the Earth's crust. Measuring the magnetism of rocks, in particular, provides a means for the direct detection of several different types of mineral deposits and for geological mapping. The magnetism of rocks depends on the volume, orientation and distribution of their constituent magnetic minerals (namely magnetite, monoclinic pyrrhotite, maghaemite and ilmenite). The instrument used in magnetic surveys is a magnetometer, which can measure the intensity of the magnetic field in nanoteslas (nT). Magnetic surveys in this collection have been acquired using aircraft or ship-mounted magnetometers and are a non-invasive method for investigating subsurface geology.

Lineage

Maintenance and Update Frequency: annually
Statement: Source: The data in this collection date back to 1951 when the Bureau of Mineral Resources (BMR) began acquiring airborne magnetic data over onshore Australia.

Form: The data are point-located (line) or gridded and include metadata and supporting documentation such as operations and processing reports.

Notes

Purpose
Magnetic data are primarily used for interpreting the geologic structure of the subsurface and the assessment of groundwater, energy and mineral resource potential.

Issued: 28 09 2022

This dataset is part of a larger collection

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159.11,-9.2402 159.11,-54.75 112.92,-54.75 112.92,-9.2402 159.11,-9.2402

136.015,-31.9951

text: westlimit=112.92; southlimit=-54.75; eastlimit=159.11; northlimit=-9.2402

Subjects
Australia-wide Airborne Geophysical Survey (AWAGS) | GEOPHYSICS | Geophysics | HVC | HVC - High Value Collection | HVC_144635 | Published_External | airborne | geomagnetism | geoscientificInformation | gridded data | line data | magnetic anomaly | magnetic field | magnetics | magnetism | point located data | potential field | ship-borne | total magnetic intensity (TMI) |

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Other Information
Geophysical Archive Data Delivery System (GADDS)

uri : https://portal.ga.gov.au/persona/gadds

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