Airborne magnetic data of the Osborne Mine and Lightning Creek sill complex, Australia

Last update: Jan 21, 2022

Related tags

Overview

Osborne Mine, Australia - Airborne total-field magnetic anomaly

This is a section of a survey acquired in 1990 by the Queensland Government, Australia. The data are good quality with approximately 80 m terrain clearance and 200 m line spacing. The anomalies are very visible and present interesting processing and modelling challenges, as well as plenty of literature about their geology.

	Summary
File	`osborne-magnetic.csv.xz`
Size	2.2 Mb
Version	v1
DOI	https://doi.org/10.5281/zenodo.5882209
License	CC-BY
MD5	`md5:b26777bdde2f1ecb97dda655c8b1cf71`
SHA256	`sha256:12d4fc2c98c71a71ab5bbe5d9a82dd263bdbf30643ccf7832cbfec6249d40ded`
Source	Geophysical Acquisition & Processing Section 2019. MIM Data from Mt Isa Inlier, QLD (P1029), magnetic line data, AWAGS levelled. Geoscience Australia, Canberra. http://pid.geoscience.gov.au/dataset/ga/142419
Original license	CC-BY
Processing code	`prepare.ipynb`

Changes made

These are the changes made to the original dataset.

Change the horizontal datum from GDA94 to WGS84.
Convert terrain clearance to flight height using an SRTM grid.
Keep only the coordinates, AWAGS leveled magnetic anomaly, and flight line ID.
Cut to a smaller region containing only the 2 anomalies of interest.

Useful references

For prior interpretations and geological context:

About this repository

This is a place to format and prepare the original dataset for use in our tutorials and documentation.

We include the source code that prepares the datasets for redistribution by filtering, standardizing, converting coordinates, compressing, etc. The goal is to make loading the data as easy as possible (e.g., a single call to pandas.read_csv or xarray.load_dataset). Whenever possible, the code also downloads the original data (otherwise the original data are included in this repository).

💡 Tip: The easiest way to download this dataset is using Pooch, particularly to download straight from the DOI of a release.

Contributing

See our Contributing Guidelines for information on proposing new datasets and making changes to this repository.

License

All Python source code is made available under the BSD 3-clause license. You can freely use and modify the code, without warranty, so long as you provide attribution to the authors.

Unless otherwise specified, all data files and figures created by the code are available under the Creative Commons Attribution 4.0 License (CC-BY).

See LICENSE.txt for the full text of each license.

The license for the original data is specified in this README.md file.

Releases(v1)

v1(Jan 20, 2022)
Date: 2022/01/20

DOI: https://doi.org/10.5281/zenodo.5882209

Note: This is a processed and formatted version of the source dataset below. It's meant for use in documentation and tutorials of the Fatiando a Terra project. Please cite the original authors when using this dataset.

Data source: Geophysical Acquisition & Processing Section 2019. MIM Data from Mt Isa Inlier, QLD (P1029), magnetic line data, AWAGS levelled. Geoscience Australia, Canberra. http://pid.geoscience.gov.au/dataset/ga/142419

Changes:

🎉 First release of the curated version of the Osborne Mine aeromagnetic data.

| | Checksums | |--:|:--| | MD5 | md5:b26777bdde2f1ecb97dda655c8b1cf71 | | SHA256 | sha256:12d4fc2c98c71a71ab5bbe5d9a82dd263bdbf30643ccf7832cbfec6249d40ded |
Source code(tar.gz)
Source code(zip)
osborne-magnetic.csv.xz(2.11 MB)

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Airborne magnetic data of the Osborne Mine and Lightning Creek sill complex, Australia

Related tags

Overview

Osborne Mine, Australia - Airborne total-field magnetic anomaly

Changes made

Useful references

About this repository

Contributing

License

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