 | | Journal (article/letter/editorial) | | at 07:53 01 January 2015 Bournonite Yaogangxian Mine, Chenzhou, Hunan Province, China T here are certain...clearly the most prolific being the Yaogangxian mine, Hunan Province. (Additional locality information...from such disparate localities as the Black Hawk mine, Blue Hill, Maine; New York City, New York; an unspecified...several centimeters across and associated with siderite and sphalerite were recovered from several mines...King. It has also been reported from the Albion mine in the Little Cottonwood district, Salt Lake County |  | Burisch, Mathias, Walter, Benjamin F., Gerdes, Axel, Lanz, Maximilian, Markl, Gregor (2018) Late-stage anhydrite-gypsum-siderite-dolomite-calcite assemblages record the transition from a deep to a shallow hydrothermal system in the Schwarzwald mining district, SW Germany. Geochimica et Cosmochimica Acta, 223. 259-278 doi:10.1016/j.gca.2017.12.002 | Journal (article/letter/editorial) | | Accepted Manuscript Late-stage anhydrite-gypsum-siderite-dolomite-calcite assemblages record the transition...system in the Schwarzwald mining district, SW Germany Mathias Burisch, Benjamin F. Walter, Axel Gerdes...system in the Schwarzwald mining district, SW Germany, Geochimica et Cosmochimica Acta (2017), doi: https://doi...journal pertain. Late-stage anhydrite-gypsum-siderite-dolomite-calcite assemblages record the transition...system in the Schwarzwald mining district, SW Germany Mathias Burisch*1, Benjamin F. Walter2, Axel Gerdes3 |  | Sal’nikova, E. B., Yakovleva, S. Z., Nikiforov, A. V., Kotov, A. B., Yarmolyuk, V. V., Anisimova, I. V., Sugorakova, A. M., Plotkina, Yu. V. (2010) Bastnaesite: a promising U-Pb geochronological tool. Doklady Earth Sciences, 430 (1) 134-136 doi:10.1134/s1028334x10010290 | Journal (article/letter/editorial) | | field are represented by ankerite–calcite and siderite vari eties [2]. They are localized in fault zones...100–300 m thick. Bastnaesite commonly occurs in siderite carbon atites, which represent fine to mediumgrained...rockforming minerals of these carbonatites are siderite (35–40%), fluorite (10–15%), and sulfates of Ba...uraninite and molybdenite. Along linear zones, the siderite carbonatites are often subjected to intense hematitization...hematitization. Bastnaesite is a typomorphic mineral of siderite carbonatites. It accounts for on average 1–1.5% |  | | Journal (article/letter/editorial) | | mineralisation in the Rheinisches Schiefergebirge, NW Germany: evidence for stibnite precipitation by drastic...UniversitaÈt WuÈrzburg, Am Hubland, 97074 WuÈrzburg, Germany e-mail: thomas.wagner@mail.uni-wuerzburg.de N....Trondheim, Norway sul®de assemblages within earlier siderite-(Cu)-Pb-Zn veins. This has led to replacement...the vein systems. In contrast with the earlier siderite-(Cu)-Pb-Zn veins, neither the quartz-stibnite-sulfosalt...mineralisation in the Rheinisches Schiefergebirge, NW Germany. The data enable an assignment of this metallogenic |  | Walter, Benjamin F., Gerdes, Axel, Kleinhanns, Ilka C., Dunkl, István, von Eynatten, Hilmar, Kreissl, Stefan, Markl, Gregor (2018) The connection between hydrothermal fluids, mineralization, tectonics and magmatism in a continental rift setting: Fluorite Sm-Nd and hematite and carbonates U-Pb geochronology from the Rhinegraben in SW Germany. Geochimica et Cosmochimica Acta, 240. 11-42 doi:10.1016/j.gca.2018.08.012 | Journal (article/letter/editorial) | | U-Pb geochronology from the Rhinegraben in SW Germany Benjamin F. Walter, Axel Gerdes, Ilka C. Kleinhanns...U-Pb geochronology from the Rhinegraben in SW Germany, Geochimica et Cosmochimica Acta (2018), doi: https://doi...U-Pb geochronology from the Rhinegraben in SW Germany. Benjamin F. Walter*1, Axel Gerdes2, Ilka C. Kleinhanns1...Geoscience, Wilhelmstraße 56, 72074 Tübingen, Germany 2 Goethe University Frankfurt, Insitute of Geosciences...Altenhoeferallee 1, D-60438 Frankfurt am Main, Germany 3 University of Göttingen, Geoscience Center, |  | Su, Hui-Min, Jiang, Shao-Yong, Cao, Ming-Yu, Luo, Ping (2020) Rare-metal mineralization potential and petrogenesis of Early Cretaceous I-type granitic rocks in the Lizikeng volcanic basin of Jiangxi Province, South China: evidence from mineralogy, geochemistry, and geochronology. Mineralium Deposita, 55 (3) 453-468 doi:10.1007/s00126-019-00894-4 | Journal (article/letter/editorial) | | / Accepted: 6 May 2019 # Springer-Verlag GmbH Germany, part of Springer Nature 2019 A P P R O V...replaced by an alteration assemblage of muscovite, siderite, opaque minerals, and/or quartz (Fig. 4g–i). Fluorite...mineral assemblage of Si-rich muscovite, quartz, siderite, and opaque minerals in the monzogranite; (i)...fluorite; Si-rich Ms, Si-rich muscovite; Sid, siderite of 0.710246 ± 0.000005 (2σ) and for the JNdi-1...performed by ICPMSDataCal (Liu et al. 2008). The U–Pb concordia plots and weighted mean age calculations were |  | | Journal (article/letter/editorial) | | Modelling; Catchment; Granite ŽProbst, A. Ž170. 203. Acid mine drainage; Pyrite; Sulfide dissolution; Microorganisms...Ž169. 265. Metal immobilization; Precipitation; Siderite; Strontium ŽParmar, N. Ž169. 281. Biomineralisation;...Chlorite; Free energy ŽKudrat, M. Ž168. 225. Concordia; Geochronology; U–Pb; Decay constants; Errors...B.S. Ž165. 1. Decay constants; Geochronology; Concordia; U–Pb; Errors ŽLudwig, K.R. Ž166. 315. Deep subduction;...TIMS ŽThirlwall, M.F. Ž163. 299. Geochronology; Concordia; U–Pb; Decay constants ŽLudwig, K.R. Ž166. 315 |  | Oberthur, T., Melcher, F., Henjes-Kunst, F., Gerdes, A., Stein, H., Zimmerman, A., El Ghorfi, M. (2009) HERCYNIAN AGE OF THE COBALT-NICKEL-ARSENIDE-(GOLD) ORES, BOU AZZER, ANTI-ATLAS, MOROCCO: Re-Os, Sm-Nd, AND U-Pb AGE DETERMINATIONS. Economic Geology, 104 (7) 1065-1079 doi:10.2113/econgeo.104.7.1065 | Journal (article/letter/editorial) | | und Rohstoffe, Stilleweg 2, D-30655 Hannover, Germany Universität Frankfurt, Institut für Geowissenschaften...Geochemie, Altenhöferallee 1, D-60438 Frankfurt, Germany 3 AIRIE Program, Department of Geosciences, Colorado...rock types (e.g., diorites at Filon 7, Bou Azzer mine). Mineralization has been traced locally for ~1...0361-0128/98/000/000-00 $6.00 (Tarouni, Bou Azzer mine, Bou Azzer East). Further, sulfur isotope compositions...ppb BA mine Filon 7 BA mine Filon 7 BA mine Filon 7 BA mine Filon 7 BA mine Filon 7 BA mine Filon 7 |  | | Journal (article/letter/editorial) | | the surrounding slates. On the north is the Araca Mine, long known for the beautiful cassiteritecrystalsthere...depositsof Quimsa Cruz have been described. The Concordia Mine, at Vela Cruz, has been investigatedby Rumbold;x...Caracoles. Armas4 alsomentions the mines of Araca, Concordia, and Monte Blanco. In all thesedepositssilveris...containquartz, orthoclase,chlorite, sericite,tourmaline, siderite, and apatite. Under the microscopean inherited...Determinationson well-crystallizedchlorite from the Argentine Mine--really part of the Caracolesdistrict--show that |  | | Journal (article/letter/editorial) | | 2011; Fig. 1). In the case of Baja California, Concordia-Paredones Amarillos deposits are interpreted as...northwestern and westernmost Mexico. The nearby Concordia-Paredones Amarillos orogenic gold deposit displays...Orogenic Gold belt Area, NW Sonora, México. Area Mine Method Mineral Age Estación Llano Quitovac-La...Total gas 2004, 2009). Carbonation halos, or siderite–ankerite associations, are observable up to 1...caliche. Quartz, carbonates (calcite, ankerite and siderite), white mica, pyrite, galena, sphalerite, scheelite |  | Trocki, Linda K., Curtis, David B., Gancarz, Alexander J., Banar, Joseph C. (1984) Ages of major uranium mineralization and lead loss in the Key Lake uranium deposit, northern Saskatchewan, Canada. Economic Geology, 79 (6) 1378-1386 doi:10.2113/gsecongeo.79.6.1378 | Journal (article/letter/editorial) | | +1 +l Sphaleriteand siderite are associatedwith coffinite. Calcite and siderite form veins in the massive...(tl), the time definedby the upperintercept with concordia;a later event, defined by the lower intercept...chemicallyclosedsystems from 300 m.y. until today. • 0.06- CONCORDIA • 0.05i- / //_ __7&_ __- o,scoRo,A \ ----...40 50 258u/2O6p b" FIG.2. Tera-Wasserburg concordia diagramshowing datafrom samplesthat do not fall...samplewastakenand the The four samplesthat are linear in the concordia degreeof discordance. Five of the nine whole-rocksamplesand |  | | Journal (article/letter/editorial) | | Geowissenschaften, Wilhelmstr. 56, D-72074 Tübingen, Germany *Corresponding author, e-mail: markl@uni-tuebingen...Geoforschungszentrum Potsdam, Telegrafenberg, D-14473 Potsdam, Germany Abstract: This study deals with the use of new...of southwest Germany. In detail, we present new U-Pb age data of ferberite (from Clara Mine), chalcedony...chalcedony (from Silberbrünnle Mine), agate (Geisberg), carneol (‘‘Markgräfler Land’’), and confirm earlier...chalcedony. 1. Introduction The Schwarzwald in SW Germany is part of the midEuropean Variscan orogen and |  | | Journal (article/letter/editorial) | | textural studies. Though originally designed for use on mine sites and mining applications, SEM-MLA can provide...in this material with a high Z values, such as siderite (Z = 16.5), ilmenite (Z = 19.0) and magnetite...Chlorit-Fe 1.15 0.04 1.14 0.07 0.86 0.11 Siderite 0.85 0.03 0.61 0.04 0.50 0.03 Illite 0...were reduced using Iolite 2.5 software [15]. A Concordia diagram (Figure 3) was produced from the Isoplot/Ex3...mounting method. Figure 3. 3. U-Pb U-Pb Concordia Concordia diagram diagram for for zircon zircon grains |  | | Journal (article/letter/editorial) | | portions of the host matrix by precipitation of siderite concretions impeded pore fluid replenishment;...Standing Rock Hadrosaur Site (SRHS), formerly the Concordia Hadrosaur Site of Colson et al. (2004), is located...students from Drexel University (Philadelphia, PA), Concordia College (Moorhead, MN), and the Standing Rock...collected from shallow marine sediments of Poland and Germany exhibit ∑REE averaging 17 2700–3800 ppm (Kowal-Linka...concretions within the bonebed horizon (altered from siderite; Ullmann et al., 2019). Though oxidation has clearly |  | | Journal (article/letter/editorial) | | Some ore deposits, as for example the Copper King Mine in Larimer County, are not spatially associated...(7) (8) (9) Wood Mine, Gilpin Co. Wood Mine, Gilpin Co. Wood Mine, Gilpin Co. Iron Mine, Gilpin Co. Richards...Richards Mine, Gilpin Co. German Mine, Gilpin Co. Gilpin Co. Copper King Mine, Larimer Co. Copper King...King Mine Pb206 TJ238 35 55 63 65 56 51 59 55 71 ±1 ±1 ±1 ±1 ±1 ±1 ±1 ±2 ±4 Pb207 TJ235 42 56 64 70 62...the Wood Mine, Gilpin County (Central City District), and two are from the Copper King Mine, Larimer |  | | Journal (article/letter/editorial) | | age containing large deposits of magne site and siderite. The characteristics of this complex are given...9 3.1 3.3 207Pb/235U Fig. 2. Diagram with concordia for zircons from rocks of the Medvedevskii massif...of 1035.1–1115.9 Ma, but they do not plot on concordia. These zircons are enriched in U, Th, and Pb....all three groups lie on the same line and cross concordia with age values of 1385 ± 24 and 551 ± 59 Ma....Kusinsko–Kopanskii Complex, as well as to deter mine the total age range (30–40 Ma) of their formation |  | | Journal (article/letter/editorial) | | high-pressure mineral inclusions of kyanite, staurolite, siderite, and rutile, none of which are observed in the...contain high-density CO2 inclusions, yield a concordia age of 257 ± 8 Ma. These observations suggest...inclusion isochore, phase diagram, and densities, the concordia age can be regarded as recording a prograde stage...conducted in NU this study (over 2 days), a concordia age of 1102 ± 7 Ma (95% confidence interval, n...Inclusions of corundum, ilmenite, rutile, staurolite, siderite, and kyanite were found in the garnet of granulite |  | | Journal (article/letter/editorial) | | deposits. These include the worldclass Serra Grande mine, in the Crixás greenstone belt (≤7 Moz Au; AngloGold...processed with IsoPlot v. 3.71 [35]. The U-Pb concordia diagrams, weighted average, and probability plots...can also result in trends sub-parallel to the concordia over millions of years (e.g., [36]), concordance...Cathodoluminescence images of representative zircon grains and concordia diagrams are provided in Supplementary Figures...isotopic disturbance, e.g., Pb loss and lower concordia intercepts at approximately 600 Ma in zircon U-Pb |  | | Journal (article/letter/editorial) | | Klippen Belt, Quebec G. P. Sassano and E. Proeyshyn Concordia University, Montreal, Quebec H4B 1R6 Abstract...MALACHITE " ~ F} 0 0 ' ~ r] 0 0 ' AZURITE ' SIDERITE " F e - OXIDES ' CALCITE ' ~ IN MICRO-GABBRC...Quartz (Q) is also visible, d Fine-grained type-A siderite (SidA) associated with type-G pyrite (Py G) set...G) is found associated with fine-grained type-A siderite interstitial to plagioclase microlites belonging...the laboratories of the INRS-Gdoressources and Concordia University. The authors wish to thank Drs. M. |  | Sarma, D. Srinivasa, Fletcher, Ian R., Rasmussen, Birger, McNaughton, Neal J., Mohan, M. Ram, Groves, David I. (2011) Archaean gold mineralization synchronous with late cratonization of the Western Dharwar Craton, India: 2.52 Ga U–Pb ages of hydrothermal monazite and xenotime in gold deposits. Mineralium Deposita, 46 (3) 273-288 doi:10.1007/s00126-010-0326-3 | Journal (article/letter/editorial) | | auriferous zones. Ajjanahalli The Ajjanahalli gold mine, once operated by the stateowned Hutti Gold Mines...sequences along with bands of oxideand carbonate (siderite)-facies banded iron formation (BIF). The BIF forms...Ajjanahalli is restricted to an oxideand carbonate (siderite)-facies BIF unit in the hinge region of an upright...Primary minerals, such as quartz, magnetite, and siderite are, to varying degrees, replaced by carbonates...System), sample GBH-13 and GBH-19 are from the Sangli mine area (Central Lode System). In all samples, the |  | Cherry, A. R., Kamenetsky, V. S., McPhie, J., Thompson, J. M., Ehrig, K., Meffre, S., Kamenetsky, M. B., Krneta, S. (2018) Tectonothermal events in the Olympic IOCG Province constrained by apatite and REE-phosphate geochronology. Australian Journal of Earth Sciences, 65 (5) 643-659 doi:10.1080/08120099.2018.1465473 | Journal (article/letter/editorial) | | hematite) associated with apatite, chlorite, quartz, siderite, K-feldspar, sericite, barite, fluorite, uraninite...MC-ICPMS U–Pb concordia 1596.7 § 7.1 OD306a 40 Ar–39Ar 31.44 § 0.18 Durangob c ID-TIMS U–Pb concordia 377.5 §...§ 3.5 Kovdor n U–Pb concordia 207 Pb corr. 206Pb/238U U–Pb concordia 10 5 3 (1 excluded) 5 3 (1 excluded)...MC-ICPMS U–Pb 530.3 § 1.5 206 ID MC-ICPMS U–Pb concordia 909.0 § 2.0 206 SHRIMP 207Pb/206Pb ID-TIMS...Bananeirag Xenotime Brazil Xenotimeh a U–Pb concordia U–Pb concordia Pb/238U Pb/238U Pb/206Pb Pb/238U 206 |  | Redin, Yury O., Redina, Anna A., Mokrushnikov, Viktor P., Malyutina, Alexandra V., Dultsev, Vladislav F. (2021) The Kultuma Au–Cu–Fe-Skarn Deposit (Eastern Transbaikalia): Magmatism, Zircon Geochemistry, Mineralogy, Age, Formation Conditions and Isotope Geochemical Data. Minerals, 12 (1) 12 doi:10.3390/min12010012 | Journal (article/letter/editorial) | | Japan) and LEO 1430VP (Carl Zeiss, Oberkochen, Germany), equipped with energy dispersive spectrometers...a 1σ level. Ages were calculated according to concordia diagrams using the IsoplotR software [25]. The...calculate U–Pb ages on the 206 Pb/238 U–207 Pb/235 U concordia diagram. Trace-element content was analyzed using...mass spectrometer (Finnigan MAT (Thermo, Bremen, Germany) Delta dual inlet mode) at the Analytical Center...skarn) or is observed together with chlorite, siderite and other carbonates (hydrosilicate (propylitic) |  | Yudovskaya, M. A., Distler, V. V., Rodionov, N. V., Mokhov, A. V., Antonov, A. V., Sergeev, S. A. (2011) Relationship between metamorphism and ore formation at the Sukhoi Log gold deposit hosted in black slates from the data of U-Th-Pb isotopic SHRIMP-dating of accessory minerals. Geology of Ore Deposits, 53 (1) 27-57 doi:10.1134/s1075701511010077 | Journal (article/letter/editorial) | | completed by measurement of standards: the Thompson Mine mon azite (Canada) with accepted U content of 2100...aggregates are consisted largely of Cafree magnesian siderite (wt %): 10.54–24.84 MgO, 29.18– 44.86 FeO, 0.17–0...relict phases are also com posed of magnesian siderite. The iron content either Fig. 4. Structural control...were mobile in ore bearing fluids. Quartz and siderite differ in REE patterns, which reflect their deposition...gold (Au) grain in quartz–carbonate veinlet (Sid, siderite). GEOLOGY OF ORE DEPOSITS Vol. 53 No. 1 2011 |  | Tomek, Filip, Opluštil, Stanislav, Svojtka, Martin, Špillar, Václav, Rapprich, Vladislav, Míková, Jitka (2022) Altenberg–Teplice Caldera sourced Westphalian fall tuffs in the central and western Bohemian Carboniferous basins (eastern Variscan belt) International Geology Review, 64 (4) 441-468 doi:10.1080/00206814.2020.1858357 | Journal (article/letter/editorial) | | DB27: coordinates recalculated based on underground mine mapping: N50.73911°, 13.76468°. All coordinates...to the west and northwest of the ATC in Saxony (Germany). The max imum volcanic activity is encountered...provided by the authors (Vranovice, Ovčín, Kladno mine) INTERNATIONAL GEOLOGY REVIEW The Bělka tuff...frag ments are sanidine, quartz, and diagenetic siderite grains that are 0.01 mm in diameter. Lamination...Radnice Basin 40–45 Locality Mine Týnec Kamenný Újezd Mine Maria Mine Concordia Borehole Co-23 ID 1 2 3 |  | Legault, Marc, Gauthier, Michel, Jébrak, Michel, Davis, Don W., Baillargeon, François (2002) Evolution of the subaqueous to near-emergent Joutel volcanic complex, Northern Volcanic Zone, Abitibi Subprovince, Quebec, Canada. Precambrian Research, 115 (1) 187-221 doi:10.1016/s0301-9268(02)00010-4 | Journal (article/letter/editorial) | | 1995), ‘Coniagas’ (Doucet et al., 1994) and ‘Hunter Mine’ (Mueller et al., 1997), were also formed by submarine...Pluton; Ma, Marest Pluton; ES, Estrades Mine; GD, Géant Dormant Mine; CLLF, Cadillac-Larder Lake Fault; DPMF...is the ore horizon and is composed of massive siderite. Unit 2 represents a sequence of highly carbonatized...thick cuts the phase five succession within the mine. Above the sill, an assemblage of volcaniclastic...Felsic volcanic with minor volcaniclastic and siderite Angularity of fragments Size of fragments Fragment |
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