Multilayered chronostratigraphic airborne electromagnetic interpretation workflow

<div>In response to the acquisition of national-scale airborne electromagnetic surveys and the development of a national depth estimates database, a new workflow has been established to interpret airborne electromagnetic conductivity sections. This workflow allows for high quantities of high quality interpretation-specific metadata to be attributed to each interpretation line or point. The conductivity sections are interpreted in 2D space, and are registered in 3D space using code developed at Geoscience Australia. This code also verifies stratigraphic unit information against the national Australian Stratigraphic Units Database, and extracts interpretation geometry and geological data, such as depth estimates compiled in the Estimates of Geological and Geophysical Surfaces database. Interpretations made using this workflow are spatially consistent and contain large amounts of useful stratigraphic unit information. These interpretations are made freely-accessible as 1) text files and 3D objects through an electronic catalogue, 2) as point data through a point database accessible via a data portal, and 3) available for 3D visualisation and interrogation through a 3D data portal. These precompetitive data support the construction of national 3D geological architecture models, including cover and basement surface models, and resource prospectivity models. These models are in turn used to inform academia, industry and governments on decision-making, land use, environmental management, hazard mapping, and resource exploration.</div>

Simple

Identification info

Date (Creation)
2022-09-25T14:00:00
Date (Publication)
2022-11-17T00:27:59
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/147251

Citation identifier
Digital Object Identifier/https://dx.doi.org/10.11636/Record.2022.037

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Commonwealth of Australia (Geoscience Australia)

 Voice
Author

Wong, S.

 Internal Contact
Author

Nicoll, M.

 Internal Contact
Author

Brodie, R.

 Internal Contact
Author

Hope, J.

 Internal Contact
Author

Bonnardot, M.

 Internal Contact
Author

Roach, I.

 Internal Contact
Author

LeyCooper, Y.

 Internal Contact
Name

GA Record

Issue identification

GA Record 2022/37

Purpose

This document describes the main steps in the multilayered airborne electromagnetic interpretation workflow.

Status
Completed
Point of contact
Role Organisation / Individual Name Details
Resource provider

Minerals, Energy and Groundwater Division

 External Contact
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

Wong, S.

 Internal Contact
Spatial representation type
Topic category
  • Geoscientific information

Extent

N
S
E
W


Maintenance and update frequency
As needed

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Project

  • EFTF – Exploring for the Future

Keywords

  • airborne electromagnetics

Keywords

  • AEM

Keywords

  • interpretation

Keywords

  • workflow

Keywords

  • mapping

theme.ANZRC Fields of Research.rdf

  • Stratigraphy (incl. biostratigraphy

  • sequence stratigraphy and basin analysis)

  • Electrical and electromagnetic methods in geophysics

  • Groundwater hydrology

  • Resource geoscience

  • Structural geology and tectonics

  • Database systems

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

https://creativecommons.org/licenses/by/4.0/

Addressee
Role Organisation / Individual Name Details
User

Any
Use constraints
License
Use constraints
Other restrictions
Other constraints

© Commonwealth of Australia (Geoscience Australia) 2022

Resource constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

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

Classification
Unclassified
Classification system

Australian Government Security Classification System

Associated resource

Association Type
Was derived from
Title

Canning Basin AusAEM interpretation: hydrogen storage potential and multilayered mapping

Citation identifier
146376

Citation identifier
968b4ce2-7055-468c-95d4-cdda65cc5cb8

Website

https://pid.geoscience.gov.au/dataset/ga/146376

Link to eCat metadata record landing page

Associated resource

Association Type
Was generated by
Title

AusAEM1 Interpretation Data Package

Citation identifier
145120

Citation identifier
430acf3d-cdf6-4a78-abbc-d2f9eae5bf91

Website

https://pid.geoscience.gov.au/dataset/ga/145120

Link to eCat metadata record landing page

Associated resource

Association Type
Was derived from
Title

Interpretation of the AusAEM1: insights from the world’s largest airborne electromagnetic survey

Citation identifier
134283

Citation identifier
92b3093b-4000-4292-8065-3f146d1baae9

Website

https://pid.geoscience.gov.au/dataset/ga/134283

Link to eCat metadata record landing page

Language
English
Character encoding
UTF8

Distribution Information

Distributor contact
Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

 Voice
OnLine resource

Download Report (pdf) [6.5 MB]

Download Report (pdf) [6.5 MB]

Distribution format

  • pdf

    File decompression technique

    nil

Resource lineage

Statement

<div>The airborne electromagnetic interpretation workflow described in this document shares some similarities to previous work at Geoscience Australia, involving the capture of section based interpretation with commonly available geographic information systems (GIS) software and existing skillsets. This technique has been applied to deep seismic reflection interpretation, magnetotelluric interpretation, geological cross sections and 2D models for forward modelling.&nbsp;</div>

Metadata constraints

Title

Australian Government Security Classification System

Edition date
2018-11-01T00:00:00
Website

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

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/77ad7de5-c591-4f16-aec5-d34cc44be678

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice
Point of contact

Wong, S.

 Internal Contact

Type of resource

Resource scope
Document
Name

GA Record

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/147251

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/77ad7de5-c591-4f16-aec5-d34cc44be678

Date info (Creation)
2022-11-16T21:37:56
Date info (Revision)
2022-11-16T21:37:56

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

Spatial extent

N
S
E
W


Keywords

EFTF – Exploring for the Future
theme.ANZRC Fields of Research.rdf
Database systems Electrical and electromagnetic methods in geophysics Groundwater hydrology Resource geoscience Stratigraphy (incl. biostratigraphy Structural geology and tectonics sequence stratigraphy and basin analysis)

Provided by

Access to the portal

Associated resources

Not available