thrustcontrolled gold mineralisation at the elandshoogte

Millrock Seeks to Expand Historical Gold Resource at the

Jun 23, 2008VANCOUVER, BRITISH COLUMBIA, June 23, 2008 - Millrock Resources Inc. (MRO - TSX:V) (Millrock or the Company) announces that it will proceed with an 1,800 meter core drilling program at the Bluff prospect, Alaska. The program, which will consist of approximately 10 holes, is designed to confirm prior drill intersections and to expand the historical gold resource that was Get price

REPORT on the GEOLOGY and MINERAL POTENTIAL

By this rationale arsenic, gold, silver, copper and zinc are deemed to be 'anomalous'. Maximum values obtained are As 200 parts per million (ppm), Cu 200 ppm, Ag 0.3 ppm, and Zn 500 ppm. Gold values are generally between 50 and 1000 parts per billion (ppb) but rare samples with parts per million values have been collected, one having 18.9 ppm. Get price

Mining News

The results have proven that there is widespread gold mineralisation associated with structural corridors within the metamorphic basement rocks. The style of mineralization is consistent with that of an orogenic gold system. Going forward our programs will focus on testing and delineating additional targets across the property. Figure 1. Get price

Fluid

Research paper Fluid-rock interaction in retrograde granulites of the Southern Marginal Zone, Limpopo high grade terrain, South Africa Jan Marten Huizengaa,b,*, Dirk van Reenenc, Jacques L.R. Touretd aUnit of Environmental Sciences and Management, North-West University, Private Bag X6001, 2520, South Africa b Economic Geology Research Institute (EGRU), School of Earth and Environmental Get price

PorterGeo Database

Mineralisation - Three main ore zones have been delineated. The larger Mutanda East orebody plunges towards the southeast, and has a strike length of ~1400 m, with two stacked bodies (as defined by the 0.4% Cu contour) that dip at between 0 and 30S (steepening down dip to the south). The upper body is up to 50 m thick near surface, but varies from 0 to 150 m, thickening down dip over an Get price

Minerals

Although emerald deposits are relatively rare, they can be formed in several different, but specific geologic settings and the classification systems and models currently used to describe emerald precipitation and predict its occurrence are too restrictive, leading to confusion as to the exact mode of formation for some emerald deposits. Generally speaking, emerald is beryl with sufficient Get price

REPORT on the GEOLOGY and MINERAL POTENTIAL

By this rationale arsenic, gold, silver, copper and zinc are deemed to be 'anomalous'. Maximum values obtained are As 200 parts per million (ppm), Cu 200 ppm, Ag 0.3 ppm, and Zn 500 ppm. Gold values are generally between 50 and 1000 parts per billion (ppb) but rare samples with parts per million values have been collected, one having 18.9 ppm. Get price

Research Publications

Bhattacharya, S., Panigrahi, M.K., Sachan, H.K., Kharya, A. 2014. Oxygen isotope ratio of quartz veins from the auriferous Ramagiri-Penakacherla schist belt and surrounding granitoids in the Eastern Dharwarcraton: A case for a possible link between gold mineralization and granite magmatism. Ore Geology Reviews, 63, 201-208. Get price

Priority Exploration Targets Gordons Dam Gold Prospect

ASX Announcement 15 August 2019 Page 5 Figure 4 – Gordons Dam gold prospect lithology interpretation based on MMC and TFEM data with exploration targets (G1-G8), newly interpreted structures and drill collars with maximum value of gold projected to the collar. Get price

Timescale of Forming a Giant Porphyry Copper

We investigated the duration of formation of the giant Ok Tedi porphyry copper-gold deposit in Papua New Guinea using zircon SHRIMP U-Pb dating. The intrusions that host the Cu-Au mineralisation have a maximum age of 1.43 0.22 Ma. Since previously published K-Ar dates on the same intrusion constrain the last thermal event Get price

Geology, Mineralization, Alteration, and Geochemistry of

Beal Mt Gold deposit (Wilkie, 1996) as replacement of clay balls. Petrography- all minerals confirmed with SEM -EDAX. Calcite. Actinolite. Hydrothermal Titanite ( Sphene) 200 long grains-amenable to in situ SIMS (Ion Micro-Probe) U/Pb age date using a 10-40beam diameter Get price

Mineralogy and stabk isotope geochemistry of the

gold mineralisation in the area. East of the River Tamar The River Tamar valley is a graben controlled by faults with a northwest strike. To the east, the Mathinna Group forms the basement of northeast Tasmania, where it consists locaJly of argillaceous lutites of Ordovician age which are, unlike Get price

Aton Reports New And Updated Intersections Including 65.3m

Field mapping and sampling has indicated the presence of ancient mine workings and extensive gold mineralisation over an area of at least 700m x 400m at surface. Abundant visible gold has been identified in hand specimens from surface outcrops, and ancient dumps and underground workings, with individual selective grab samples assaying up to 321 Get price

gold mine in nelspruit

The Elandshoogte Gold Mine is located in Mpumalanga Province, South Africa, in the Nelspruit district in the close proximity of the Sudwala Caves in the Houtbosloop Vallet. The venture was reopened by Transvaal Gold Mining Ltd in September 1987 and ceased underground operations in the late eighties. Get price

Konkoutou Gold Project

Jun 22, 2016• Gold mineralisation encountered in 9 of the 13 holes drilled • Drilling results confirm the continuity of the gold mineralised structures over a strike length of 450 metres with strong intersections as previously reported in ASX announcements of 12 January 2012, 7 May 2012 and 8 April 2016 Get price

Gold Mineralization at the Golden Trail Project

Gold mineralization overprints zones of early, locally variable, calcsilicate skarn and hydrothermally altered limestone. Late precious metal veins, replacement zones, and mineralized breccias host the highest gold values. Host rock lithostratigraphy includes near horizontal bedded shallow marine sediments of the Middle Permian Pe- Get price

Proterozoic Lode Gold and (Iron)

The Homestake gold mine is the largest example of a Proterozoic lode gold deposit (Fig. 1; Table 1) and has the largest production of any single gold deposit outside South Africa (Caddey et al., 1991). It has operated continuously since its discovery in 1876 and production including reserves total more than 57 Get price

PorterGeo Database

The gold-bearing disseminated pyrite occurs as 0.1 to 2 mm crystalline pyritohedrons. Arsenopyrite crystals, which are the most important of the sulphide hosting gold mineralisation are 0.05 to 6 mm long acicular needles distributed in apparent random orientations, although some may aligned with cleavage (Roberts et al., 2003). Fluid inclusions Get price

Thrust

Mar 01, 1992Detailed examination of the Elandshoogte Mine shows that gold deposition occurred in two stages, both linked to bedding-parallel thrust faulting within the sedimentary pile. Deformation being concentrated within incompetent shale beds, interlayered within more competent units. Get price

USGS Open

The depth of deposition ranges from 4 to 12 km (Bhlke, 1999). The gold is transported by the reduced sulfur complex AuHS(H2S)3 (Loucks and Mavrogenes, 1999). The Processes of Thickening the Crust Required to Generate the Metamorphic Reactions to Form the Large Volume of Aqueous Fluid Associated With Low-Sulfide Quartz Gold Deposits Get price

CiteSeerX — Turbiditc

CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): The Dolaucothi gold deposit occurs in thin bedded turbidites of Upper Ordovician to basal Silurian age deposited near the southern margin of the lower Paleozoic Welsh basin. The host rocks were deformed during the Caledonian orogeny (390-410 Ma) into a series of inclined asymmetrical, commonly overturned, tight Get price

gold mines pilgrims rest

Thrust-controlled gold mineralisation at the Elandshoogte Mine in the Sabie-Pilgrim's Rest goldfield, eastern Transvaal These deposits have produced about 180 . Home - Theta Gold Mines. Theta Gold Mines Limited is reawakening a giant goldfield in South Africa's Eastern Goldfields, where South Africa's gold mining industry began almost 130 Get price

Mineralogy and stabk isotope geochemistry of the

gold mineralisation in the area. East of the River Tamar The River Tamar valley is a graben controlled by faults with a northwest strike. To the east, the Mathinna Group forms the basement of northeast Tasmania, where it consists locaJly of argillaceous lutites of Ordovician age which are, unlike Get price

The Archean Chalice gold deposit: a record of complex

and two stages of gold mineralisation are recognised, controlled by the progressive D 2 event. Main Stage gold mineralisation (95% of the resource), which is demonstrably later than all granitic bodies except second generation and subsequent monzogranite dikes, is controlled by localised D 2 asymmetric folds developed in the mafic amphibolite. Get price