3D Geological Model of the Grampians-Stavely Zone, western Victoria (poster)  

Authors / CoAuthors

Goodwin, J.A. | McAlpine, S.

Abstract

The Stavely Project is a collaborative project between Geoscience Australia and the Geological Survey of Victoria, which aims to provide a framework for exploration and discovery in the Grampians-Stavely Zone of western Victoria, through the acquisition of pre-competitive geoscientific data. This includes the completion of fourteen stratigraphic drill holes which tested regional geological interpretations and recovered material for detailed geoscientific analysis (Schofield et al., 2015). The new information derived from these stratigraphic drill holes has been incorporated into a 3D geological model which covers a volume of 62 km (E-W) × 94 km (N-S) × 8 km (depth) across the Grampians-Stavely Zone. The focus of this 3D geological model is on the geological units considered to be cover sequences that overly prospective rocks of the Mount Stavely Volcanic Complex. The Mount Stavely Volcanic Complex is considered to be prospective for porphyry Cu-Au and volcanic-hosted massive sulphide mineral systems. Within the volume of interest the units being modelled as cover sequences include the Murray Basin sediments, Grampians Group sediments, Rocklands Volcanic Group and the Newer Volcanic Group basalts. GeoModeller 2014 software was used to create the 3D geological model. GeoModeller utilises an interpolator method for creating 3D geology that is based on potential field theory (Chilès et al., 2004; McInerny et al. 2005). The 3D geological model provides a space where interpretations from multiple datasets can be represented together. Information used to constrain this model includes surface geology (1:50k mapping), stratigraphic drill-holes (VIMP and Stavely), and interpretations from seismic reflection, gravity and magnetic data.

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nonGeographicDataset

eCat Id

83893

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• GA PublicationPoster/Image

• Victoria

Australian and New Zealand Standard Research Classification (ANZSRC)

• Earth Sciences

• Published_Internal

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2015-01-01T00:00:00

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geoscientificInformation

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