CSA Global is proud to be sponsoring and presenting at the RIU Explorers Conference between 16-18 February, 2021 at the Esplanade Hotel, Fremantle, Western Australia.
Senior Consultant, Dr Robert Holm will present at 11.15am on Wednesday 17 February on ‘The Stavely Project – Integrating structural geology for improved mineral systems analysis.’
The RIU Explorers Conference has grown over the years to be a full three day event. Now, in its 20th year, it is again attracting an overwhelming response from the junior and mid cap resources industry, keen to communicate their latest exploration and production successes along with updates on their technical and corporate performances.
The Stavely Cu-Au-Ag Project (Stavely Minerals, ASX:SVY) lies within the Cambrian Stavely Arc – part of the Grampians-Stavely Zone of Victoria – which was deformed during the Late Cambrian Delamerian Orogeny, and again during the Silurian-Devonian Bindian Orogeny. Informative outcrops of the Stavely Arc are rare due to limited outcrop, and poor exposure with most of the geology obscured beneath the younger cover. A high level of uncertainty in the wider geological knowledge of the Stavely Arc constrains our understanding of the regional mineral systems and our ability to apply predictive mineral exploration models.
This study presents workflows to illustrate how we can integrate structural information into a mineral systems model, utilising the Stavely Project as a case study. A bottom-up approach is informed by structural observations and exploration activity from the Stavely Project. This data-orientated approach utilises measured structures and assay results from exploration drilling to interpret structural pathways for migration and deposition of mineralising fluids.
Faults and shear zones at the Stavely Project variably host elevated Cu-Au-As±Ag±Ni±Co dependant on orientation; however, veins do not appear to host substantial metal anomalism. An overall NW-SE compressive stress field is interpreted at the time of mineralisation. This structural regime is consistent with the previously interpreted collision of VanDieland, which is therefore implicated in disruption to subduction zone processes and triggering the mineralising event. This case study provides an example where integrating structural geology into a mineral systems model can help understand the prospectivity of a terrane and target future exploration activities.
About our Presenter
Dr Rob Holm
Robert is an expert geologist with an extensive and diverse background encompassing both the minerals and oil and gas sectors. He specialises in structural geology, drawing on experience ranging from Archean Gold systems to recent and actively forming analogues across the SW Pacific, to investigate mineral systems across multiple spatial and temporal scales. Robert also has expertise in unravelling the metallogenesis and prospectivity of complex tectonic settings through multidisciplinary methods that include, but are not limited to, structural geology and geodynamics, geophysical interpretation, petrology, geochemistry and isotope systematics, and geochronology. He uses these skills coupled with strong analytical and problem-solving skills to deliver integrated geological solutions in project generation and deposit targeting. Robert also draws from experience exceeding 10 years in geoscience training and education that has gained recognition and multiple awards to offer workshops and training programs that can be developed to cater for the specific needs of a client.