Ferndale Gold in Orange, New South Wales | Local business
Ferndale Gold
Locality: Orange, New South Wales
Phone: +61 491 627 871
Address: Laurel Avenue 2800 Orange, NSW, Australia
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25.01.2022 Porphyry Cu-Au deposits, especially the Alkalic systems that occur in eastern Australia form in simple ways. The basic ingredients include a fertile magma that has stalled in the upper crust and an effective structural control allowing ascent of the apical zones of the cooling magma chamber to ascend to near-surface. When the rupture occurs a huge volume of volatiles and metals stream upward like any hot water or steam and use the conduit of the ascending magma that is really quite viscous crystal mush rather than a red hot lava. The image highlights the fluid streaming abilities of the crystal mush in this case a reddened monzonite.
25.01.2022 An old photo from my Peel Mining stint during honours working at Sandy Creek south of Gilgunnia. The RAB rig drilled 900 metres per day. Bulk bags were checked with the Niton and the holes either deepened or the drill grid tightened up to chase anomalies. Very aggressive exploration. (photo Peel Mining)
25.01.2022 I was able to acquire this recently and is an example of intensely stockwork quartz-chalcopyrite-magnetite-actinolite veined monzonite porphyry. This complies with the inter mineral classification of Wilson or the P2 classification of a later author. This sample was probably mined from very close to the apical portion of one of the mineralised intrusions at the Ridgeway deposit......one of the most spectacular porphyry Cu-Au deposits that has been discovered.
23.01.2022 Mineralised basalt from the Ridgeway mine NSW Australia. The porphyry Au-Cu mineralisation is associated with 3 mineralised porphyritic stocks and a few stages of mineralised quartz veins. In this image there are 4 stages of mineralised quartz veins with clear paragenetic sequence. Early B vein, cut by laminated magnetite-bornite vein and then cut by another 2 stages of B veins. There is probably an early thin magnetite vein stage and also a later calcite vein, so 6 vein stages all up in this one sample.
22.01.2022 One of the more impressive photos from the Cadia East Mine NSW showing a sheeted-veined monzonite and the contact with the Forest Reefs Volcanics that is also cut by sheeted veins and later calcite-epidote-sulphide veins. This image shows the vertical orientation of the large monzonite dykes and associated sheeted mineralied veins at this alkalic porphyry Au-Cu-Mo deposit and mine. A great example of the permeable fluid pathways that the monzonite dykes represent, however some of the dykes at Cadia East carry mineralisation in the ir own right as seen with strongly mineralised and altered apical zones.
22.01.2022 Photos of a 46 kilo specimen of malachite from Kolwezi - Congo.
21.01.2022 Mineralised monzonite porphyry from the Yeoval Cu-Au Mo deposit NSW. Mineralisation includes disseminated bornite-chalcopyrite and quartz veins with chalcopyrite-bornite-molybdenite.
20.01.2022 Reference chip trays written up in a new way. Peel Mining exposed me to this style of chip tray with large, clean and well presented drill chips, depth in metres written along the tray and collar number above the numbers. Just about anything can then we written inside the chip tray from QA/QC, important intervals, contacts , XRF selected geochem and later assay results. This supersedes the old from-to written vertically with no room for anything else and often in illegible writing. The new way preserves important information on the inside of the chip tray where it cannot be rubbed off over time.
20.01.2022 Reference boards for logging are the way to go with projects and are helpful with a wide variety of tasks from rock chip sampling to drill core logging. While the example here is very detailed, simple logging boards with slabbed hand samples from outcrop are a great way to start.
19.01.2022 1s DEM overlay of ESRI Basemaps imagery of the Skardon River area showing a range of tenements (public domain).
10.01.2022 Cobalt minerals in a goethitic laterite developed over an Alaskan-style intrusive complex from NSW. Rarely seen.
09.01.2022 Some images from the early years of Cadia. Courtesy of Geoff Derrick and RME.
09.01.2022 The passion for exploration and discovery and understanding drives many of us in this great industry.
08.01.2022 Drilling one of our laterite discoveries in central NSW.
06.01.2022 Calc-potassic altered ?monzonite clasts in a quartz-marnetite-bornite-chalcopyrite vein (partly laminated style vein). Ridgeway Mine NSW. This rock type was generally found in the very high grade zones of the deposit close to the apical zones of multiple porphyry stocks ( early and inter mineral intrusions).
04.01.2022 Superb calc-potassic altered, brecciated and mineralised volcanic conglomerate from the Ridgeway Mine NSW Australia. This 18 kilo sample came from the first cross cut developed across the Ridgeway ore body. Spectacular porphyry B-style veining with chalcopyrite-bornite (grade estimates of 2% Copper and 4ppm gold). The rock has been cut by a later quartz-carbonate-epidote-chalcopyrite cemented breccia that may also upgrade the estimated gold grade.
02.01.2022 Soil sampling in gold country using the Fiskars ergonomic post hole shovel. This shovel is uniquely designed for ease of digging nice clean holes through tough ground. Also good for breaking up your target horizon and extracting sample from the hole cleanly.
02.01.2022 Thick porphyry quartz vein with chalcopyrite-bornite-magnetite from some of the earliest ore mined from the Ridgeway Deposit NSW Australia. The host lithology is likely calc-potassic altered Forest Reefs Volcanics. Veins like this are scarce but this found its way into aggregate that was taken off the mine lease.
02.01.2022 Ore and vein textures Ridgeway, E26 North Parkes and Cadia Hill (clockwise from top left). Similar stockwork vein style textures between Ridgeway and North Parkes but more mafic intrusive rocks at Ridgeway. Cadia Hill is a sheeted vein wallrock-style porphyry Cu-Au deposit. A closer look at the intrusive textures at Cadia Hill (from 10 years of collecting samples) suggests that the Cadia Hill monzonite has been intruded by a number of dyke-like intrusive porphyries with Cu-Au mineralisation.
