.
Location: 225 km E from Geraldton, Western Australia, Australia
Level 2, 1100 Hay StreetPerthWestern Australia, Australia6005
Stay on top of the latest gold discoveries. Examine the latest updates on drilling outcomes spanning various commodities.
Mining scale, mining and mill throughput capaciites.Full profiles of select mines and projects.
Shaft depth, mining scale, backfill type and mill throughput data.Full profiles of select mines and projects.
Equipment type, model, size and quantity.Full profiles of select mines and projects.
Camp size, mine location and contacts.Full profiles of select mines and projects.
The formation that hosts the Golden Grove deposits, known as the Golden Grove Formation, lies along the northeast flank of the Warriedar Fold Belt (‘WFB’), a sequence of intermediate to felsic volcaniclastic sediments, lavas and associated autoclastic breccias. The WFB is located in the Murchison Province of the Archaean Yilgarn Block within the Yalgoo Greenstone Belt. All economically significant mineralisation intersected at Golden Grove to-date has been within the Golden Grove Formation which is a sequence of re-sedimented juvenile tuffaceous debris of rhyolite to andesite composition, minor sedimentary rocks and volcanics ranging from andesite to rhyodacite. The current interpretation of the structure places the Golden Grove Formation on the eastern limb of a syncline. The stratigraphy is west facing and dips steeply west. The Golden Grove domain has been metamorphosed to greenschist facies, after the deposition of the sulphides. Copper mineralisation at Golden Grove is predominantly in the form of chalcopyrite. Zinc mineralisation at Golden Grove is predominantly in the form of sphalerite. A significant amount of magnetite is hosted in the footwall unit at Gossan Hill and has been locally replaced by pyrite and chalcopyrite.Gossan ValleyGossan Valley is hosted in the Golden Grove Formation. Similar to Gossan Hill mineralisation, the mineralisation at the Gossan Valley deposit has locally replaced sub-massive to massive magnetite in what is traditionally seen as a chalcopyrite-dominant footwall for the Gossan Hill deposit. However, at Gossan Valley the mineralisation is a combination of sphalerite and chalcopyrite. At Gossan Valley, stringer chalcopyrite and pyrite also occur further in footwall sediments, and small lenses of sphalerite and chalcopyrite occur in the hangingwall to the main mineralised position.A number of post mineralisation dolerite intrusives crosscut the stratigraphy and mineralisation at the Gossan Valley Deposits in several generations and orientations. In turn, the dolerites are crosscut by later small rhyolite intrusions. The Gossan Valley Deposits are made up of multiple lenses within a 3.4km portion of prospective stratigraphy, extending from Grassi in the south to Conteville in the north. Some of the lenses that make up the Gossan Valley and Grassi deposits are open down plunge. The Conteville deposit remains open down plunge. Within the Project Envelope defined in the GV Studies, mineralisation in the Gossan Valley deposit ranges in thickness from 1-25m with an average thickness of 4m. Grassi deposit thickness ranges from 2-20m with an average thickness of 6m.DimensionsGossan Valley mineralisation is hosted in Golden Grove Member 4 (GG4) of the Golden Grove Formation. The nature of mineralisation is considered to be strata bound. The style of mineralisation at Gossan Valley is similar in nature to that of Gossan Hill and comprises multiple steeply dipping zones. Each zone varies from 50m to 450m along strike, 40m to 400m down-dip and 3m to 10m in thickness.
- subscription is required.
