 | | Journal (article/letter/editorial) | | during gold mineralization in carbonate-bearing metasediments: the Navachab gold deposit, Namibia A. Dziggel...Springer-Verlag 2009 Abstract The Navachab gold deposit in the Damara belt of central Namibia is hosted by a near-vertical...chalcopyrite, sphalerite, and arsenopyrite, native bismuth, gold, bismuthinite, and bismuth tellurides. Mass balance...Keywords Navachab gold deposit . Fluid–rock interaction . Rare earth element mobility . Orogenic gold mineralization...Introduction The Navachab gold deposit is situated in the Damara belt in central Namibia (Fig. 1). The mine was discovered |  | | Journal (article/letter/editorial) | | insights from 3D implicit modelling of the Navachab gold deposit, Namibia Stefan A. Vollgger, Alexander R. Cruden...insights from 3D implicit modelling of the Navachab gold deposit, Namibia, Ore Geology Reviews (2015), doi: 10...3D implicit modelling of the Navachab gold deposit, SC R IP T Namibia Stefan A. Vollgger 1,*, Alexander...early Palaeozoic Navachab gold deposit which is located in the Damara orogenic belt, Namibia. Compared to...datasets. In our 3D implicit NU model of the Navachab gold deposit, distinctive high-grade mineralisation |  | | Journal (article/letter/editorial) | | minerals Review Case Histories of Orogenic Gold Deposits Franz Michael Meyer Institute of Applied Mineralogy...review compares genetic parameters of 12 orogenic gold deposits. The set of examples is considered to represent...represent largely the variability of orogenic gold deposit (OGD) characteristics. The data are presented...formation and proposed origin of ore fluids aa well as gold reserves, production, and grades. This allows comparison...discussed before the background of the orogenic gold system and the crustal metamorphic models that provide |  | | Book | | REPUBLIC OF NAMIBIA - MINISTRY OF MINES AND ENERGY GEOLOGICAL SURVEY THE MINERAL RESOURCES OF NAMIBIA FIRST...ENERGY Of the several hundred minerals present in Namibia, around sixty have been exploited. some, such as...base metals and industrial minerals have helped Namibia rank amongst the top five mining countries in Africa...terms of production and reserves. In this context, Namibia is a major producer of copper, lead, zinc, cadmium...unpublished. It is evident that mineral exploration in Namibia, as elsewhere. has changed from serendipitous discoveries |  | Xiao, Xin, Zhou, Tao-fa, White, Noel C., Zhang, Le-jun, Fan, Yu, Wang, Fang-yue, Chen, Xue-feng (2018) The formation and trace elements of garnet in the skarn zone from the Xinqiao Cu-S-Fe-Au deposit, Tongling ore district, Anhui Province, Eastern China. Lithos, 302. 467-479 doi:10.1016/j.lithos.2018.01.023 | Journal (article/letter/editorial) | | Australia Abstract ： Xinqiao is a large copper-gold deposit and consists of two major D mineralization...2008; Smith et al., 2004). Xinqiao is a large copper-gold-sulfur-iron deposit in the Middle-Lower Yangtze...Mesozoic igneous rocks are widespread in PT E D the region, including more than 70 intrusions, and are dominated...composite AC stocks, dikes and sills in this region (Wu et al., 2008; Xie et al., 2012; Xu et al.,... Ore deposit geology Xinqiao is a large copper-gold-sulfur-iron deposit in the MLYB; its resources include |  | Zhang, Shitao, Chen, Huayong, Shu, Qihai, Zhang, Yu, Chu, Gaobin, Cheng, Jiamin, Tian, Jing (2019) Unveiling growth histories of multi-generational garnet in a single skarn deposit via newly-developed LA-ICP-MS U Pb dating of grandite. Gondwana Research, 73. 65-76 doi:10.1016/j.gr.2019.04.003 | Journal (article/letter/editorial) | | alteration (stage I, dominated by garnet, PT diopside, K-feldspar and wollastonite), retrograde alteration...simultaneous Grt1-exo usually presents as garnet-diopside or garnet skarn (Figs. 2c, 2d). The colors of...veins cutting massive magnetite ores with residual diopside also have been found (Figs. 2j, 2k). The Grt3...homogeneous with some CE previous magnetite and diopside inclusions (Fig. 2l). Although the precedence...and chalcopyrite-quartz vein replacing garnet-diopside skarn (Fig. 2c) and calcite replacing Grt2 (Figs |  | Wang, Minfang, Shang, Xiaoyu, Zhang, Fucheng, Wei, Ketao, Wang, Wei (2019) In-situ major and trace element chemistry of melanite from Tieshan Fe–Cu skarn deposit, Hubei Province, Eastern China: Implications for hydrothermal fluid evolution. Ore Geology Reviews, 111. 102996 doi:10.1016/j.oregeorev.2019.102996 | Journal (article/letter/editorial) | | North China Craton and the Dabie Orogenic Belt. The region is bounded by the Xiangfan–Guangji Fault (XGF)...Many ore deposits have been discovered in this region, including porphyry and porphyry–related skarn...siderite, and major gangue minerals including diopside, garnet, scapolite, phlogopite, actinolite, chlorite...chlorite, albite, tremolite and epidote. Native gold or electrum is present as inclusions mainly in pyrite...of anhydrous silicate minerals, such as garnet, diopside, albite and minor scapolite (Fig. 4a). Skarns |  | Bell, Robin-Marie, Kolb, Jochen, Waight, Tod Earle, Bagas, Leon, Thomsen, Tonny B. (2017) A Palaeoproterozoic multi-stage hydrothermal alteration system at Nalunaq gold deposit, South Greenland. Mineralium Deposita, 52 (3) 383-404 doi:10.1007/s00126-016-0667-7 | Journal (article/letter/editorial) | | multi-stage hydrothermal alteration system at Nalunaq gold deposit, South Greenland Robin-Marie Bell 1,2 &...Heidelberg 2016 Abstract Nalunaq is an orogenic, high gold grade deposit situated on the Nanortalik Peninsula...operating metalliferous mine until its closure in 2014, having produced 10.67 t of gold. This study uses a...metamorphism and prior to gold-quartz vein formation. The ca. 1783–1762-Ma gold-quartz veins are hosted...exceptionally high gold grades. Aplite dykes dated to ca. 1762 Ma cross-cut the gold-quartz veins, providing |  | | Report (chapter) | | invoked as a source for various deposits, especially gold deposits. Metamorphic fluid compositions reflect...reactions owing to pressure drop. Some orogenic lode gold deposits fit well with a purely metamorphic origin...hydrothermal gold reflect the effect of salt on gas solubility, not the origin of the fluid. Gold Open Access:...deposits are also discussed with an emphasis on gold mineralization, because this is the type of mineralization...low salinity CO2-bearing fluids from the Brusson gold-bearing quartz veins by Yardley et al. (1993), and |  | | Journal (article/letter/editorial) | | association between gold and bismuth seen in many ore deposits, and involves the scavenging of gold from hydrothermal...whether the liquid bismuth collector model can explain gold accumulation at this prospect. The calc-silicate...metasomatism involved temperatures >400° to 500°C. Visible gold is associated with native bismuth, bismuthinite...Stormont and textural relationships suggest that gold was scavenged from hydrothermal fluids by liquid...contributed to dissolution and reprecipitation of gold, thus facilitating an ore zone refining process |  | | Book | | systematically present the geology of each country, region and continent on Earth. Each book aims to provide...(Gariep Belt) cropping out in the western borders of Namibia and South Africa. They were split up in the Mesozoic...concerning the tectonic and geodynamic evolution of this region during the Precambrian. Major tectonometamorphic...tectonostratigraphic domains and structures of the region are presented, together with implications for the... They emphasize the enormous potential of this region in terms of base (Cu, Pb, Zn, Co, Ni), precious |  | | Journal (article/letter/editorial) | | protolith formation and metamorphism, the Nuuk region has been subdivided into several distinct terranes...assemblages in mafic supracrustal rocks include diopside + orthopyroxene + plagioclase + hornblende ± garnet...typical mineral assemblage of orthopyroxene + diopside + plagioclase + hornblende ± quartz. The metagabbro...granulites contain garnet coronas that separate diopside and orthopyroxene from plagioclase grains. These...rmilik Nuuk region North Atlantic 63º30 Craton Fig. 1. Geological map of the Nuuk region, including |  | Grandjean da Costa, Felipe, Luiz Klein, Evandro, Harris, Chris, Roopnarain, Sherissa (2019) Fluid inclusion and stable isotope (O, H, C) constraints on the genesis of the Pedra Branca gold deposit, Troia Massif, Borborema Province, NE Brazil: An example of hypozonal orogenic gold mineralization. Ore Geology Reviews, 107. 476-500 doi:10.1016/j.oregeorev.2019.03.007 | Journal (article/letter/editorial) | | C) constraints on the genesis of the Pedra Branca gold deposit, Troia Massif, Borborema Province, NE Brazil:...Brazil: an example of hypozonal orogenic gold mineralization Felipe Grandjean da Costa, Evandro Luiz Klein...C) constraints on the genesis of the Pedra Branca gold deposit, Troia Massif, Borborema Province, NE Brazil:...Brazil: an example of hypozonal orogenic gold mineralization, Ore Geology Reviews (2019), doi: https://doi...C) constraints on the genesis of the Pedra Branca gold deposit, Troia Massif, Borborema Province, NE Brazil: |  | Fan, Xiejun, Wang, Xiangdong, Lü, Xinbiao, Wei, Wei, Chen, Wei (2019) Garnet composition as an indicator of skarn formation: LA-ICP-MS and EPMA studies on oscillatory zoned garnets from the Haobugao skarn deposit, Inner Mongolia, China. Geological Journal, 54 (4) 1976-1992 doi:10.1002/gj.3273 | Journal (article/letter/editorial) | | 2018M630890 and 2015M582300; Inner Mongolia Autonomous Region Geological Prospecting Fund Management Center,...compositional features, were matic activities across the region (Han et al., 2011; Jian et al., 2008; distinguished... cate minerals, which is characterized by the diopside‐garnet skarn in of 500 m, with an assemblage...deposit; the other calc‐silicate minerals include diopside, amphi- the distal to the proximal zone in zk2511...2008). cate assemblages, dominated by garnet, diopside, and wollastonite; (2) the retrograde stage, which |  | Tan, Fucheng, Kong, Hua, Liu, Biao, Wu, Qianhong, Chen, Shefa (2023) In Situ U—Pb Dating and Trace Element Analysis of Garnet in the Tongshanling Cu Polymetallic Deposit, South China. Minerals, 13 (2) 187 doi:10.3390/min13020187 | Journal (article/letter/editorial) | | Hunan district in the Qin-Hang and the Nanling Region, modified from [16,17]. (c) Geologic map of Nanling...Nanling metallogenic belt, modBelt the[11]. Nanling Region, modified from [16,17]. (c) Geologic map of Nanling...[17]. The Nanling Ore belt, located in the central region of South China (Figure 1b,c), with massive magmatic...stagecontains contains anhydrous silica minerals (e.g., diopside,wollastonite, wollastonite, and and garnet) mineralization...mineralization (Figure 4a–c). TheThe (e.g., diopside, garnet)but butno noobvious obvious mineralization |  | | Book | | papers and 19 geological maps in Western Australia, Namibia and Greenland. Throughout his career, which has...4.3.9 The Brandberg West Greisen Vein Systems, Namibia . . 4.3.10 The Kalguta Mo-W-Be-Bi Greisen System.... . . . . . . . . . . . . 4.4 Intrusion-Related Gold, Polymetallic and Uraniferous Vein Systems and Breccia...Complexes. . . . . . . . . . . . 4.6 Iron Oxide-Copper-Gold-Rare Earth Elements-Uranium Mineral Systems . ..... . . . . . . . . . . . . . . . . . . . . . 6.5 Gold Skarns . . . . . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | metallogenic belt, Northeast China (Figure 1a). The region recorded the evolution of the Paleo-Asian Ocean...prograde skarn stage (I), dradite, grossular, diopside, anda hedenbergite [28]. Existing Replacements...texture. (h) Grt IV of sample intergrown with diopside. abbreviations: Hd, hedenbergite; Ves, vesuvianite;...garnet (Grt IV).Cc, (g)calcite; Grt IV quartz; Di, diopside. showing obvious core–rim texture. (h) Grt IV...IV of sample HG12-28 intergrown with diopside. Mineral abbreviations: Grt, garnet; Hd, hedenbergite; Ves |  | Wang, Xinyu, Wang, Shulai, Zhang, Huiqiong, Wang, Yuwang, Zhu, Xinyou, Yang, Xing (2022) Geochemical Characteristics of the Mineral Assemblages from the Niukutou Pb-Zn Skarn Deposit, East Kunlun Mountains, and Their Metallogenic Implications. Minerals, 13 (1) 18 doi:10.3390/min13010018 | Journal (article/letter/editorial) | | deposits and mines are scattered throughout the region, a fact that has attracted the attention of many...deposits and mines are scattered throughout the region, a fact that has attracted the attention of many...mineralization mechanisms in thein region. skarn mineralization mechanisms the region. Figure1.1.Tectonic Tectonicframework...experienced metamormetamorphism. phism. Faults this region regiongenerally generally strike in the NWW directions...components calculated by the johannsenite–hedenbergite–diopside end members [26], Px1 (Di5-65Hd32-80Jo3-15) was |  | Zhou, Zhenhua, Mao, Jingwen, Che, Hewei, Ouyang, Hegen, Ma, Xinghua (2017) Metallogeny of the Handagai skarn Fe–Cu deposit, northern Great Xing'an Range, NE China: Constraints on fluid inclusions and skarn genesis. Ore Geology Reviews, 80. 623-644 doi:10.1016/j.oregeorev.2016.08.012 | Journal (article/letter/editorial) | | calcic skarn that is dominated by an andradite–diopside–epidote–actinolite assemblage. The mineralogy...the exploration for other skarn deposits in this region. SC R 2. Geological setting The GXR is located..., 2011). The Hercynian intrusive rocks in this region are granites, granodiorites, and quartz diorites...volcanic rocks in this area are exposed over a region of ca. 100,000 km2 in area and have a cumulative...prospective for MA future exploration. TE 3.1 Mine geology D 3. Ore deposit geology CE P The Handagai |  | Sun, Zhiyuan, Wang, Jingbin, Wang, Yuwang, Long, Lingli (2019) Geochemical Characteristics of Mineral Assemblages from the Yamansu Iron Deposit, NW China, and Their Metallogenic Implications. Minerals, 10 (1) 39 doi:10.3390/min10010039 | Journal (article/letter/editorial) | | Turpan–Hami basin (copper belt), the Kangguer belt (gold belt), and the Aqishan–Yamansu belt (iron-copper-silver...abundant K-feldspar and garnet with subordinate diopside, which occur mainly surrounding the Fe1 orebody...analysis conditions. Fe2 O3 (Fe), MnTiO3 (Mn, Ti), diopside Minerals 2020, 10, 39 7 of 23 (Mg, Si), Cr2...and tourmaline coupled with the near absence of diopside in the early stage Minerals 2020, 10, 39 18...LA-ICP-MS study of garnets from the Crown Jewel gold deposit. Geochim. Cosmochim. Acta 2008, 72, 185–205 |  | Sepidbar, Fatemeh, Mirnejad, Hassan, Li, Jian-Wei, Wei, Chunjing, George, Luke L., Burlinson, Kingsley (2017) Mineral geochemistry of the Sangan skarn deposit, NE Iran: Implication for the evolution of hydrothermal fluid. Geochemistry, 77 (3) 399-419 doi:10.1016/j.chemer.2017.07.008 | Journal (article/letter/editorial) | | (a) Map of Iran and geological map of the Sangan region including location of the Sangan deposit and the...skarn associated with A’ orebody shows a binary diopside-hedenbergite composition, ranging from Hd29 to...the field of skarn deposits on the johanssonite-diopside-hedenbergite ternary diagram (Fig. 6). Like with...Symbols as in Fig. 4. Fig. 6. Johannsenite (Jo) – Diopside (Di) – Hedernbergite (Hd) ternary diagram (Meinert...the Sangan skarn are andradite-grossularite, and diopside-hedenbergite, respectively. Due to their similar |  | | Thesis/Dissertation | | Engineering ii ABSTRACT The Kansanshi Cu-(Au) mine exploits a structurally controlled deposit hosted...southern Africa. It is currently the largest active Cu mine in Africa, with a total endowment of nearly 12 Mt...Kansanshi antiform. The deposit occurs within the Domes region of the Central African Copperbelt, where amphibolite...Domain is separated from the overlying Kansanshi Mine domain by the Evaporitic Sequence, a >300 m thick...of vanished evaporites. The base of the Kansanshi Mine domain is represented by the Dolomitic Sequence |  | | Journal (article/letter/editorial) | | northern margin transferred into an active convergent region associated with the southward subduction of the...intermediate–felsic magmatic complexes were emplaced in this region (e.g. Tian et al. 2007; Zhao et al. 2007, Zhang...Schematic map showing (a) regional setting of study region and (b) distribution of ultramafic–mafic complex...elemental analyses for diopside, amphibole, and garnet are orthoclase for K, diopside for Ca, rutile for...1. Xiahabaqin complex 4.1.1. HBQ-1 An abandoned mine near Tiema village exposes coarse grained clinopyroxenite |  | Tian, Zhen-Dong, Leng, Cheng-Biao, Zhang, Xing-Chun, Zafar, Tehseen, Zhang, Le-Jun, Hong, Wei, Lai, Chun-Kit (2019) Chemical composition, genesis and exploration implication of garnet from the Hongshan Cu-Mo skarn deposit, SW China. Ore Geology Reviews, 112. 103016 doi:10.1016/j.oregeorev.2019.103016 | Journal (article/letter/editorial) | | 216 Ma) (Wu et al., 2017). Extrusive rocks in the region comprise mainly bimodal volcanic rocks that host...z-andalusite) and calc-silicate skarn (garnet-diopside-wollastonite- vesuvianite), respectively. Skarns...porphyry, with a mineral assemblage of garnet, diopside, and vesuvianite. The latter is widely developed...area, and has a mineral assemblage of garnet, diopside, and wollastonite. Stage II is characterized with...earlier anhydrous skarn minerals (e.g., garnet, diopside) by hydrous minerals (e.g., actinolite, epidote |  | | Journal (article/letter/editorial) | | associated with sulfide stage (stage III, the main copper-gold mineralization stage) is different from other types...deposit prefers to be an IOCG-like (iron oxide-copper-gold) deposit rather than a typical skarn deposit. Attribution...and stable isotopic analyses, an iron-oxide copper gold (IOCG)-like type with skarn alteration was proposed...Erqis fault (Figure 1b). Major structures in the region comprise mainly NW-trending and NNW-trending fault...hematite, while gangue minerals include garnet, diopside, epidote, chlorite, hornblende, actinolite, plagioclase |
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