 | | Journal (article/letter/editorial) | | Swaziland (Fig. 1), as described below. 2.1. Londozi The Londozi deposit is located in the southeastern part...layered pyrite, sphalerite and to a lesser extent chalcopyrite and galena (Reimer, 1980). Samples were collected...the barite horizon. An age of 3.55 Ga for the Londozi barite implies that this is the oldest sulfate...Hofmann (2005). Barite deposits indicated: (a) Londozi barite, 3.55 Ga Theespruit Formation, lower Onverwacht...30°39′ 39″E), 4 km south of the Stolzburg asbestos mine. Barite occurs in a narrow chert band that likely |  | | Journal (article/letter/editorial) | | thus be about 3350 Ma. LOWER ONVERWACHTBARYTES Londozi baryte The lowermost of the baryte deposits of...Barberton Mountain Land occurs in the valley of the Londozi River in the northwestern part of Swaziland close...The sequence as developed around the Londozi River baryte mine can be described as follows. The volcanic..." "~/ ~ ~..':.~ / / 1002~300~.OOm ~ "~"0~ LONDOZI BARYTE / / tquartz-senc,te Schists ! ton,iL...along strike decreasing in thickness away from the mine area. An extension is known on the farms Houtbosch |  | Roerdink, Desiree L., Mason, Paul R.D., Whitehouse, Martin J., Brouwer, Fraukje M. (2016) Reworking of atmospheric sulfur in a Paleoarchean hydrothermal system at Londozi, Barberton Greenstone Belt, Swaziland. Precambrian Research, 280. 195-204 doi:10.1016/j.precamres.2016.05.007 | Journal (article/letter/editorial) | | sulfur in a Paleoarchean hydrothermal system at Londozi, Barberton Greenstone Belt, Swaziland Desiree L...D36S-values in a 3.52 Ga hydrothermal barite deposit at Londozi, Barberton Greenstone Belt, Swaziland. In situ...between abiotic and biological processes in the Londozi hydrothermal system complicate the interpretation...analysis of pyrite from the 3.52 Ga Paleoarchean Londozi barite deposit in the Theespruit Formation of the...involvement of older crustal material in the magma source region (Kröner et al., 2013; Kröner et al., 1996; Van |  | Agangi, Andrea, Hofmann, Axel, Eickmann, Benjamin, Marin-Carbonne, Johanna, Reddy, Steven M. (2016) An atmospheric source of S in Mesoarchaean structurally-controlled gold mineralisation of the Barberton Greenstone Belt. Precambrian Research, 285. 10-20 doi:10.1016/j.precamres.2016.09.004 | Journal (article/letter/editorial) | | igneous sources, or a combination of these (Hutti mine, India; Rogers et al., 2013; Western Australia,...responsible for the formation of deposits in a single region over a range of depths and temperatures (from <200...predominant pyrite and arsenopyrite, with minor chalcopyrite, Ni–As sulfide and sphalerite. Most gold is...1995). In contrast, mineralisation at New Consort mine is hosted in medium metamorphic grade rocks, and...thrust faults. This may not apply to New Consort mine, where mineralisation is hosted in medium metamorphic |  | Selvaraja, Vikraman, Fiorentini, Marco. L., Jeon, Heejin, Savard, Dany D., LaFlamme, Crystal K., Guagliardo, Paul, Caruso, Stefano, Bui, Thi-Hao (2017) Evidence of local sourcing of sulfur and gold in an Archaean sediment-hosted gold deposit. Ore Geology Reviews, 89. 909-930 doi:10.1016/j.oregeorev.2017.07.021 | Journal (article/letter/editorial) | | have been outlined for the purposes of near- 148 mine exploration (Fig. 4). These local members are the...tectonic events in the 2.5 billion year history of the region (Fig. 158 4). 159 Most of the Wyloo Dome, as...detection of five ion species from the same analysis region. Secondary ion 249 images were obtained by rastering...Pyrite 358 These thumb shaped massive pyrite-chalcopyrite nodules (Fig. 9b, d) are typically composed...cube-shaped 360 aggregates and inclusions of blebby chalcopyrite. In the study of pyrite rich sedimentary 361 |  | LaFlamme, Crystal, Jamieson, John W., Fiorentini, Marco L., Thébaud, Nicolas, Caruso, Stefano, Selvaraja, Vikraman (2018) Investigating sulfur pathways through the lithosphere by tracing mass independent fractionation of sulfur to the Lady Bountiful orogenic gold deposit, Yilgarn Craton. Gondwana Research, 58. 27-38 doi:10.1016/j.gr.2018.02.005 | Journal (article/letter/editorial) | | 1993. Gold mineralisation at the Lady Bountiful Mine, Western Australia: an example of a granitoid-hosted...analysis by SIMS of pyrrhotite, pentlandite and chalcopyrite to refine magmatic ore genetic models. Chemical...sulfur in a Paleoarchean hydrothermal system at Londozi, Barberton Greenstone Belt, Swaziland. Precambrian |  | Galić, Aleksandra, Mason, Paul R.D., Mogollón, José M., Wolthers, Mariëtte, Vroon, Pieter Z., Whitehouse, Martin J. (2017) Pyrite in a sulfate-poor Paleoarchean basin was derived predominantly from elemental sulfur: Evidence from 3.2 Ga sediments in the Barberton Greenstone Belt, Kaapvaal Craton. Chemical Geology, 449. 135-146 doi:10.1016/j.chemgeo.2016.12.006 | Journal (article/letter/editorial) | | 27 where occasional grains of Ni-sulfide and chalcopyrite were also found. The vein in sample BARB4_349...sulfides were also observed in the vein including chalcopyrite and galena. Two samples were taken from different...sulfur in a Paleoarchean hydrothermal system at Londozi, PT Barberton Greenstone Belt, Swaziland. Precambrian |  | | Journal (article/letter/editorial) | | Brazil (Fig. 1). It is the largest underground gold mine in the country, containing 150 t Au. As of 2015...the Nova Lima Group. The world-class Morro Velho Mine started production in 1834, and has produced more...brevity. The lithostratigraphic succession at the mine area, first defined by Vial (1980), includes volcanic...is pyrite-pyrrhotite-arsenopyrite with minor chalcopyrite and sphalerite, and gold in equilibrium. Gold...Cuiabá fold, contains the richest gold ore of the mine. The orebody shows a reasonably constant thickness |  | A. Marques, Ana Filipa, Roerdink, Desiree L., Baumberger, Tamara, de Ronde, Cornel E. J., Ditchburn, Robert G., Denny, Alden, Thorseth, Ingunn H., Okland, Ingeborg, Lilley, Marvin D., Whitehouse, Martin J., Pedersen, Rolf B. (2020) The Seven Sisters Hydrothermal System: First Record of Shallow Hybrid Mineralization Hosted in Mafic Volcaniclasts on the Arctic Mid-Ocean Ridge. Minerals, 10 (5) 439 doi:10.3390/min10050439 | Journal (article/letter/editorial) | | characterized by the occurrence of sphalerite, chalcopyrite, galena, and Ag-sulfosalts (Figure 5C–I). These...sphalerite grains, commonly associated with chalcopyrite, are anhedral when rimming pyrite and barite...rimmed by chalcopyrite sphalerite (dark grey), and galena (light grains rimmed by grains chalcopyrite (yellow)...Bidispersive peaks identified in the sphalerite, chalcopyrite, withchalcopyrite, Tl and Bi peaks identified...of galena-chalcopyrite photomicrographs of galena-chalcopyrite andgrains galena-chalcopyrite-sphalerite |  | | Book | | systematically present the geology of each country, region and continent on Earth. Each book aims to provide...Amphibolite-Facies Gold Deposits—The New Consort Mine . . . . . . . . . . . . . . . . . . . . . . . ...gneissic and granitoid terrain to the south in the region around the town of Piet Retief (now Mkhondo; Fig...development of the Pongola Supergroup (Central Region), South Africa. Precambr Res 224:268–286 Murphy...characteristics of late granite plutons in the Barberton Region and Swaziland with emphasis on the Dalmein Pluton–a |  | | Journal (issue) | | Rupununi. The major part, too, of the Maya Mountains region in British Honduras has been traversed, and a reconnaissance...north of Palapye. Drilling on the old Bushman copper mine was sufficient to arouse keen interest on the pa1"t...have been examined. Swaziland: Drilling into the Londozi barytes deposit has indicated probable and potential...which small qua11tities of zinc-blende, galena, chalcopyrite and other minerals are also present. Other promising...while an old lead-zinc mine has been re-examined; prospects of re-opening this mine are said to be not unfavourable |  | | Journal (article/letter/editorial) | | mulriple arc-basin systems of northwestern Pacific region. This dual arc-basin systems collapsed and closed...only rocks at the terrestrial planet formation region (Hayashi 1981). However, it is widely accepted...are located north-west of Yazd province and this region is included in Cenozoic magmatic belt of Central...Central Iran. The widespread rocks in this region are Eocene age volcanic with granitoid intrusives. The Cretaceous...Geological Survey, Denver, (iridley@usgs.gov) The 9°N region of the East Pacific Rise (EPR) has been densely |
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