Government of Western AustraliaDepartment of Mines and Petroleum

Geological Survey ofWestern Australia

3D Geoscience at GSWAKlaus Gessner

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

GSWA 3D Geoscience: Who?

Klaus Gessner - GSWA

Ruth Murdie – GSWA

Lucy Brisbout – GSWA

Huaiyu Yuan – Macquarie / CET

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

GSWA 3D Geoscience: What?

Aim • increase the knowledge of Western Australia’s subsurface

through the integration of geophysical, geological and geochemical data in 3D structural models.

Objectives• developing the capability to build, manage, analyse and

store 3D models according to GSWA quality standards and stakeholder needs

• engaging in collaborative research with leading research institutions that complement GSWA’s data collection, analysis and modelling capabilities.

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

• Need for integration of surface and depth data: Effective communication to stakeholders

• ‘The end of the cartoon era’ – increased level of rigor by geometrical constraint (interpreted map, cross section, forward model, 3D model, …)

• Reduced uncertainty and risk• It’s fun (sometimes)

GSWA 3D Geoscience: Why?

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Integration: Focus on Yilgarn and its margins

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

• Collecting / archiving / updating existing models / objects– Integration of existing data– Level of integration (data vs. models: impact on how we handle

our data)– Corporate style (polygons vs volumes, scale increments, …)

• Products to stakeholders– Data vs. models; 2D vs 3D– GA approach (World Wind based viewer?)

• Technical framework– Should be similar between across State surveys, and GA– Longevity

Challenges

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Modelling challenge: Explicit / Implicit

Updateable vs ‘3D sewing’

Henson 2006

Wellmann 2012

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Data Management Challenge

• Variety of input data– Data types / formats– Coordinate systems– Accuracy across scales (‘mantle to vein’)

• Archive and store– ‘z-issue’– Permission management

• Variety of output data– Visualisation / Interface (e.g. GA viewer based on NASA

software)– Data export

• ‘Victorian’solution nvcollaborative project?– Turnkey system ($$$)

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Production challenge

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

GSWA 3D Geoscience: How

Priorities

• Field campaigns: passive seismic arrays• Focus on regional scale 3D Models (internal/external)

– Delivery as digital packages (annually updated)

• Cooperation– CET’s Integrated Exploration Platform– Numerical simulation: Geodynamics (CET) of AFO, Musgraves– Imaging / property modelling

• Gigapixel mosaics• Physical properties / CT scans

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Large Scale …

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Large Scale: CCFS and ANU Collaboration ( via ARC CCFS and Linkage funding)

Passive Array Studies along Yilgarn margins: Capricorn and Albany-Fraser Orogen

Huaiyu YuanCCFS

(CET / Macquarie)

Christian SipplANU RSES

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Slightly less large scale …

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Mesoscale

Outcrop scale:

Gigapixel images

Ivan Zibra

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Microscale

Physical property models based on x-ray tomography; acoustic property measurements (collaboration with Australian Synchrotron, Argonne, UWA, CSIRO)

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Regional Structural Model Package

GSWA• Sandstone GB• Yilgarn Fault Network• Windimurra • AFO …• Capricorn …

External (at own risk)• SX (Nico Thebaud)• Eastern Goldfields (GA)• Musgraves (Alan Aitken, GA)• Kimberley• Tanami• +/- Assorted basin models (WAGCOE, UWA CPR)

Government of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and PetroleumGovernment of Western Australia Department of Mines and Petroleum

Perth: The ‘Munich’ of 3D Geomodelling … ?

Critical mass in Perth - producing 3D models of WA Geology!

Your picture here …