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Location: 96 km W from Bandar Lampung, Indonesia
Hutan Way LinggoBandar Negeri Semuong, Tanggamus Regency, LampungIndonesia35686
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During the 2023 financial year, Kingsrose Mining Limited completed the sale of its interest in the Way Linggo gold project to Capwill Global Limited by announcement on 16 December 2022.
Way LinggoThe Way Linggo deposit is an epithermal gold / silver deposit. Epithermal gold-silver-quartz vein mineralisation has been identified at Way Linggo. Economic mineralisation is predominantly restricted to the major vein structures, with the majority of gold and silver contained in main-stage banded quartz veins and quartz vein breccia.Way Linggo located on western margin of older Miocene volcanic rocks (Tomh) surrounded by younger tuffaceous rocks (Qhv). A prominent pull-apart basin occurs to the west of Way Linggo.Intrusions are localized by the intersection of NW-, NE- and N-trending lineaments and pre-date the emplacement of the epithermal veins in both areas.Clay-pyrite (argillic) alteration (yellow), pervasive silicification (pink) and quartz veins (red) coincide with NW- and N-trends (argillic alteration, silicification and quartz veins) and NE-trends(silicification) locally. The vein systems and related hydrothermal alteration are localized in zones of lineament intersection and nearby dacite intrusions.The vein systems and related hydrothermal alteration are localized in zones of lineament intersection and nearby dacite intrusions. Both prospects are inferred to lie in the same 3 km by 1.5 km hydrothermal cell that is defined by NW- and N-trending fault- and fracture-zones.The surface quartz veins south of the Semung river predominantly strike NW and dip moderately to steeply towardsthe NE. In contrast, the surface quartz veins north of the river (89 measurements) indicate NW-, NNW- and N strikes and dip steeply towardsthe NE or E.The surface quartz veins measured at Semung Kecil (82 measurements) show a slightly more northerly strike than the majority of the quartz veins at way Linggo and commonly dip steeply towardsthe southwest.Pervasive silica-pyrite altered sedimentary rock in the South vein area of Way Linggo. This siltstone is inferred to have been deposited in a NE-trending fault-controlled basin (sag pond) during a volcanic hiatus; Pervasive silicification and minor quartz veins trend N30 – 40oE and dip steeply NW (outcrop and sub-crop samples in Way Sapta contain up to 2.2 g/t Au, 18 g/t Ag, 467 ppm As).Quarry vein showing convoluted colloform banding in chalcedony and quartz: Interpreted to indicate the upper levels of a productive epithermalsystem (rock channel samples indicate up to 2.5 g/t Au and 89 g/t Ag).Vein B underground mine: High-grade Au-Ag localized within fine-grained sulphidic (dark grey) bandsin colloform banded quartz vein 26.4 g/t Au and 339 g/t Ag.The Talang Santo deposit is an epithermal gold / silver deposit. Mineralisation is hosted within a vein system of brecciated parallel quartz veins with a dominantly clay supported matrix which also contains clay altered volcanic fragments.The geology of the Talang Santo project area consists predominantly of mid-Miocene volcanic units, comprising andesitic volcanic breccia and andesite lava grading upwards into andesitic tuff with parallel lamination sediment structures. These rocks are intruded by both plagioclase andesite porphyry and hornblende andesite porphyry.A dextral, strike-slip fault which hosts the gold-bearing vein epithermal veins at Talang Santo trends west-northwest, whilst the north-northeast structures observed in the mine area have resulted from the intrusion of the andesitic porphyry. Low-angle quartz veins dipping to north-northeast are potentially the result of hydrothermal fluid flow following fractures related to a dilatational compressive event. It is anticipated that gold / silver precipitation occurred when the regional tectonic field was in compressive relaxation.Talang SantoThe Talang Santo gold / silver deposit is centred on an extensive epithermal quartz vein system (and associated wall rock alteration), which has been identified over a strike of approximately fourteen hundred metres.Drilling has identified a semi-regular, parallel quartz vein system, dipping at approximately fifty degrees to the eastnortheast, with several parallel mineralised structures and sub-parallel mineralised splays also observed. The mineralised veins vary in width from sub-one metre to five metres with an average width of approximately one and a half metres. The system effectively remains open in all directions.The Talang Santo vein system: Mawi VeinThe main mineralised entity, the Mawi vein is brecciated parallel quartz veins with a dominantly clay supported matrix which also contains clay altered volcanic fragment. The veins outcrops and are typically banded and brecciated.Splay veinThe splay vein is a lower-grade gold bearing vein, which sees an increase in tenor at its intersection with the Mawi vein where it also results in a deflection of the Mawi vein strike.Silver VeinThe Silver vein outcrops to the south from Mawi vein, and joins with it at West Santo. Drilling has indicted that commercial grades are attainted where the Silver Vein merges with the Mawi vein.Mineralisation.Epithermal gold-silver quartz vein mineralisation has been identified at Talang Santo over a strike length of fourteen hundred metres and to an explored depth of approximately four hundred metres below surface.High-grade gold and silver was detected in the Mawi vein in layers of banded quartz veins and in brecciated quartzaltered wall rock. Massive white quartz and chalcedony is generally low in gold and silver content.Propylitic alteration prominently occurs at the periphery of the veins. With clay and silica alteration displayed close to the veins structures.
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