Mineralogy of Complex Co-Ni-Bi Vein Mineralization, Bieber Deposit
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Washington State Minerals Checklist
Division of Geology and Earth Resources MS 47007; Olympia, WA 98504-7007 Washington State 360-902-1450; 360-902-1785 fax E-mail: [email protected] Website: http://www.dnr.wa.gov/geology Minerals Checklist Note: Mineral names in parentheses are the preferred species names. Compiled by Raymond Lasmanis o Acanthite o Arsenopalladinite o Bustamite o Clinohumite o Enstatite o Harmotome o Actinolite o Arsenopyrite o Bytownite o Clinoptilolite o Epidesmine (Stilbite) o Hastingsite o Adularia o Arsenosulvanite (Plagioclase) o Clinozoisite o Epidote o Hausmannite (Orthoclase) o Arsenpolybasite o Cairngorm (Quartz) o Cobaltite o Epistilbite o Hedenbergite o Aegirine o Astrophyllite o Calamine o Cochromite o Epsomite o Hedleyite o Aenigmatite o Atacamite (Hemimorphite) o Coffinite o Erionite o Hematite o Aeschynite o Atokite o Calaverite o Columbite o Erythrite o Hemimorphite o Agardite-Y o Augite o Calciohilairite (Ferrocolumbite) o Euchroite o Hercynite o Agate (Quartz) o Aurostibite o Calcite, see also o Conichalcite o Euxenite o Hessite o Aguilarite o Austinite Manganocalcite o Connellite o Euxenite-Y o Heulandite o Aktashite o Onyx o Copiapite o o Autunite o Fairchildite Hexahydrite o Alabandite o Caledonite o Copper o o Awaruite o Famatinite Hibschite o Albite o Cancrinite o Copper-zinc o o Axinite group o Fayalite Hillebrandite o Algodonite o Carnelian (Quartz) o Coquandite o o Azurite o Feldspar group Hisingerite o Allanite o Cassiterite o Cordierite o o Barite o Ferberite Hongshiite o Allanite-Ce o Catapleiite o Corrensite o o Bastnäsite -
Nickeline Nias C 2001-2005 Mineral Data Publishing, Version 1
Nickeline NiAs c 2001-2005 Mineral Data Publishing, version 1 Crystal Data: Hexagonal. Point Group: 6/m 2/m 2/m. Commonly in granular aggregates, reniform masses with radial structure, and reticulated and arborescent growths. Rarely as distorted, horizontally striated, {1011} terminated crystals, to 1.5 cm. Twinning: On {1011} producing fourlings; possibly on {3141}. Physical Properties: Fracture: Conchoidal. Tenacity: Brittle. Hardness = 5–5.5 VHN = n.d. D(meas.) = 7.784 D(calc.) = 7.834 Optical Properties: Opaque. Color: Pale copper-red, tarnishes gray to blackish; white with strong yellowish pink hue in reflected light. Streak: Pale brownish black. Luster: Metallic. Pleochroism: Strong; whitish, yellow-pink to pale brownish pink. Anisotropism: Very strong, pale greenish yellow to slate-gray in air. R1–R2: (400) 39.2–45.4, (420) 38.0–44.2, (440) 36.8–43.5, (460) 36.2–43.2, (480) 37.2–44.3, (500) 39.6–46.4, (520) 42.3–48.6, (540) 45.3–50.7, (560) 48.2–52.8, (580) 51.0–54.8, (600) 53.7–56.7, (620) 55.9–58.4, (640) 57.8–59.9, (660) 59.4–61.3, (680) 61.0–62.5, (700) 62.2–63.6 Cell Data: Space Group: P 63/mmc. a = 3.621(1) c = 5.042(1) Z = 2 X-ray Powder Pattern: Unknown locality. 2.66 (100), 1.961 (90), 1.811 (80), 1.071 (40), 1.328 (30), 1.033 (30), 0.821 (30) Chemistry: (1) (2) Ni 43.2 43.93 Co 0.4 Fe 0.2 As 55.9 56.07 Sb 0.1 S 0.1 Total 99.9 100.00 (1) J´achymov, Czech Republic; by electron microprobe, corresponds to (Ni0.98Co0.01 Fe0.01)Σ=1.00As1.00. -
ICOMOS Advisory Process Was
Background A nomination under the title “Mining Cultural Landscape Erzgebirge/Krušnohoří Erzgebirge/Krušnohoří” was submitted by the States (Germany/Czechia) Parties in January 2014 for evaluation as a cultural landscape under criteria (i), (ii), (iii) and (iv). The No 1478 nomination dossier was withdrawn by the States Parties following the receipt of the interim report. At the request of the States Parties, an ICOMOS Advisory process was carried out in May-September 2016. Official name as proposed by the States Parties The previous nomination dossier consisted of a serial Erzgebirge/Krušnohoří Mining Region property of 85 components. ICOMOS noticed the different approaches used by both States Parties to identify the Location components and to determine their boundaries; in some Germany (DE), Free State of Saxony; Parts of the cases, an extreme atomization of heritage assets was administrative districts of Mittelsachsen, Erzgebirgskreis, noticed. This is a new, revised nomination that takes into Meißen, Sächsische Schweiz-Osterzgebirgeand Zwickau account the ICOMOS Advisory process recommendations. Czechia (CZ); Parts of the regions of Karlovy Vary (Karlovarskýkraj) and Ústí (Ústeckýkraj), districts of Consultations and technical evaluation mission Karlovy Vary, Teplice and Chomutov Desk reviews have been provided by ICOMOS International Scientific Committees, members and Brief description independent experts. Erzgebirge/Krušnohoří (Ore Mountains) is a mining region located in southeastern Germany (Saxony) and An ICOMOS technical evaluation mission visited the northwestern Czechia. The area, some 95 km long and property in June 2018. 45 km wide, is rich in a variety of metals, which gave place to mining practices from the Middle Ages onwards. In Additional information received by ICOMOS relation to those activities, mining towns were established, A letter was sent to the States Parties on 17 October 2018 together with water management systems, training requesting further information about development projects academies, factories and other structures. -
2.14 Mean Annual Climatic Water Balance
2.14 Mean Annual Climatic Water Balance The climatic water balance (CWB) is defined as the difference between precipitation depth Baltic Sea. The whole lowland regions of Mecklenburg-Vorpommern (Mecklenburg-Western and the depth of potential evapotranspiration at a given site during a certain time period. Pomerania), Brandenburg, Sachsen-Anhalt (Saxony-Anhalt), and Sachsen (Saxony) have negative summer half-year balances, with average values sometimes drastically below In general climatology, climate classifications are usually based on the weather elements “air - 100 mm. The highest deficits in the summer half-year show values below -300 mm. In sum- temperature” and “precipitation depth”, from which e. g. the description of the aridity of the mers with abundant rainfall, positive half-year balances may be recorded too, what was the climate is derived, the so-called aridity index. However, in the context of water-resources case in about one third of the years in the series 1961–1990. management and hydrology, the climatic water balance is better suitable for the hydroclimatic characterisation of sites, areas or periods, because the (hydro-)climatic conditions are The period with mean negative monthly balances in the inland lowlands lasts from April to described directly by means of the water-balance effective elements “precipitation” or “poten- September/October. The highest monthly balance deficits below -100 mm are recorded in the tial evapotranspiration” in the dimension “mm”. Dependent on whether precipitation depth or months from May to July. Negative monthly balances may occur throughout the year, potential evapotranspiration depth prevails in the considered period, the climatic water provided dry weather prevails. -
Cobalt Mineral Ecology
American Mineralogist, Volume 102, pages 108–116, 2017 Cobalt mineral ecology ROBERT M. HAZEN1,*, GRETHE HYSTAD2, JOSHUA J. GOLDEN3, DANIEL R. HUMMER1, CHAO LIU1, ROBERT T. DOWNS3, SHAUNNA M. MORRISON3, JOLYON RALPH4, AND EDWARD S. GREW5 1Geophysical Laboratory, Carnegie Institution, 5251 Broad Branch Road NW, Washington, D.C. 20015, U.S.A. 2Department of Mathematics, Computer Science, and Statistics, Purdue University Northwest, Hammond, Indiana 46323, U.S.A. 3Department of Geosciences, University of Arizona, 1040 East 4th Street, Tucson, Arizona 85721-0077, U.S.A. 4Mindat.org, 128 Mullards Close, Mitcham, Surrey CR4 4FD, U.K. 5School of Earth and Climate Sciences, University of Maine, Orono, Maine 04469, U.S.A. ABSTRACT Minerals containing cobalt as an essential element display systematic trends in their diversity and distribution. We employ data for 66 approved Co mineral species (as tabulated by the official mineral list of the International Mineralogical Association, http://rruff.info/ima, as of 1 March 2016), represent- ing 3554 mineral species-locality pairs (www.mindat.org and other sources, as of 1 March 2016). We find that cobalt-containing mineral species, for which 20% are known at only one locality and more than half are known from five or fewer localities, conform to a Large Number of Rare Events (LNRE) distribution. Our model predicts that at least 81 Co minerals exist in Earth’s crust today, indicating that at least 15 species have yet to be discovered—a minimum estimate because it assumes that new minerals will be found only using the same methods as in the past. Numerous additional cobalt miner- als likely await discovery using micro-analytical methods. -
Article Is Available On- Bearing Mineralising Event Is Not Possible Because of the Line At
Eur. J. Mineral., 33, 175–187, 2021 https://doi.org/10.5194/ejm-33-175-2021 © Author(s) 2021. This work is distributed under the Creative Commons Attribution 4.0 License. Grimmite, NiCo2S4, a new thiospinel from Príbram,ˇ Czech Republic Pavel Škácha1,2, Jiríˇ Sejkora1, Jakub Plášil3, Zdenekˇ Dolnícekˇ 1, and Jana Ulmanová1 1Department of Mineralogy and Petrology, National Museum, Cirkusová 1740, 193 00 Prague 9 – Horní Pocernice,ˇ Czech Republic 2Mining Museum Príbram,ˇ Hynka Klickyˇ place 293, 261 01 Príbramˇ VI, Czech Republic 3Institute of Physics ASCR, v.v.i., Na Slovance 1999/2, 182 21 Prague 8, Czech Republic Correspondence: Pavel Škácha ([email protected]) Received: 25 December 2020 – Revised: 2 March 2021 – Accepted: 8 March 2021 – Published: 19 April 2021 Abstract. The new mineral grimmite, NiCo2S4, was found in siderite–sphalerite gangue at the dump of shaft no. 9, one of the mines in the abandoned Príbramˇ uranium and base-metal district, central Bohemia, Czech Republic. The new mineral occurs as rare idiomorphic to hypidiomorphic grains up to 200 µm × 70 µm in size or veinlet aggregates. In reflected light, grimmite is creamy grey with a pinkish tint. Pleochroism, polarising colours and internal reflections were not observed. Reflectance values of grimmite in the air (R %) are 42.5 at 470 nm, 45.9 at 546 nm, 47.7 at 589 nm and 50.2 at 650 nm). The empirical formula for grimmite, based on electron-microprobe analyses (n D 13), is Ni1:01(Co1:99Fe0:06Pb0:01Bi0:01/62:07S3:92. The ideal formula is NiCo2S4; requires Ni 19.26, Co 38.67, and S 42.07; and totals 100.00 wt %. -
Benefits of Biodiversity Enrichment Due to Forest Conversion: Evidence from Two Choice Experiments in Germany
Benefits of Biodiversity Enrichment due to Forest Conversion: Evidence from two Choice Experiments in Germany Jürgen Meyerhoffa, Ulf Liebeb, Volkmar Hartje a a Institute for Landscape and Environmental Planning, Technische Universität Berlin b Universität Leipzig, Institute of Sociology Corresponding author: Jürgen Meyerhoff, Institute for Landscape and Environmental Planning, Technische Universität Berlin, EB 4-2, Strasse des 17. Juni 145, D – 10623 Berlin, Germany, [email protected] Abstract Forest biodiversity has recently received increasing attention because forest ecosystems are critically important habitats in terms of biological diversity. However, although many non-marketed non-timber products provided by forest ecosystems have been subject to non-market valuation studies, little is known about the economic value of forest biodiversity at present apart from the value of genetic information. This applies to both tropical and temperate forests. In order to determine the benefits from enriched forest biodiversity, we employed choice experiments in two regions in Lower Saxony, Germany. As they are attribute based, we expected to obtain more information about how people value changes in biodiversity compared to the contingent valuation but the choice experiments only provided limited information about this since we found no significant differences between several implicit prices. Calculating the welfare measures shows that including the alternative specific constant or not switches the measure from negative to positive and vice-versa. This is also the case when we exclude all the respondents who always chose the status quo option. JEL Classification: Q23; Q51; Q57 Keywords: Alternative specific constant, choice experiment, forest biodiversity, forest conversion, implicit price, welfare measure 1 Introduction Among the non-marketed non-timber products forests provide, biodiversity has recently received increasing attention. -
Late Cretaceous to Paleogene Exhumation in Central Europe – Localized Inversion Vs
https://doi.org/10.5194/se-2020-183 Preprint. Discussion started: 11 November 2020 c Author(s) 2020. CC BY 4.0 License. Late Cretaceous to Paleogene exhumation in Central Europe – localized inversion vs. large-scale domal uplift Hilmar von Eynatten1, Jonas Kley2, István Dunkl1, Veit-Enno Hoffmann1, Annemarie Simon1 1University of Göttingen, Geoscience Center, Department of Sedimentology and Environmental Geology, 5 Goldschmidtstrasse 3, 37077 Göttingen, Germany 2University of Göttingen, Geoscience Center, Department of Structural Geology and Geodynamics, Goldschmidtstrasse 3, 37077 Göttingen, Germany Correspondence to: Hilmar von Eynatten ([email protected]) Abstract. Large parts of Central Europe have experienced exhumation in Late Cretaceous to Paleogene time. Previous 10 studies mainly focused on thrusted basement uplifts to unravel magnitude, processes and timing of exhumation. This study provides, for the first time, a comprehensive thermochronological dataset from mostly Permo-Triassic strata exposed adjacent to and between the basement uplifts in central Germany, comprising an area of at least some 250-300 km across. Results of apatite fission track and (U-Th)/He analyses on >100 new samples reveal that (i) km-scale exhumation affected the entire region, (ii) thrusting of basement blocks like the Harz Mountains and the Thuringian Forest focused in the Late 15 Cretaceous (about 90-70 Ma) while superimposed domal uplift of central Germany is slightly younger (about 75-55 Ma), and (iii) large parts of the domal uplift experienced removal of 3 to 4 km of Mesozoic strata. Using spatial extent, magnitude and timing as constraints suggests that thrusting and crustal thickening alone can account for no more than half of the domal uplift. -
Causes and Potential Solutions for Conflicts Between Protected Area Management and Local People in Germany
Causes and Potential Solutions for Conflicts between Protected Area Management and Local People in Germany Eick von Ruschkowski, Department of Environmental Planning, Leibniz University Han- nover, Herrenhäuser Strasse 2, 30419, Hannover, Germany; [email protected] hannover.de Introduction The designation of protected areas (e.g. national parks) often leads to conflicts between local communities and the area’s administration. This phenomenon exists worldwide (Pretty and Pimbert 1995) and is probably as old as the national park idea itself. These conflicts often affect both the protected areas and the local communities as strained relations bear the dan- ger of gridlock on park planning, conservation objectives or regional economic development. As national parks and surrounding communities are highly dependent on each other (Jarvis 2000), the task of managing stakeholder interests and potential use conflicts should be of high priority for park managers. National parks in Germany (as much of Central Europe’s protected areas) are often very vulnerable to such conflicts for a number of reasons. Their history is quite recent, with the oldest park having been established less than 40 years ago. On the other hand, the German landscape has been altered throughout many centuries, hence creating cultural landscapes, rather than unimpaired wilderness. Thus, the designation of national parks has caused con- flicts in the past, mainly along the lines of the continuation of traditional uses vs. future (non- )development, often additionally fuelled by management issues (local vs. state vs. federal). Additionally,a high population density puts protected areas more likely close to urban areas. Against this background, the management of stakeholder issues in order to increase support among local communities remains one of the most important sociological challenges for Ger- man park managers. -
54 SKUTTERUDITE FROX{ COBALT. ONTARIOI on Some Specimens
54 THE AMENICAN M]NENALOGIST SKUTTERUDITE FROX{ COBALT. ONTARIOI T. I/. WALKER Uruiuersily oJ Torontn On somespecimens recently obtained from the Temiskaming mine, Cobalt, Ontario, small brilliant crystals resembling smal- tite were observed,imbedded in fragments of soft chloritic or micaceouscountry rock includedin the vein. As is well known, smaltite and chloanthite closelyresemble one another and are commonlyintergrown in the samecrystal. It was with a view to determiningthe relative purity of the supposedsmaltite that this examinationwas undertaken. The principal ore in the vein is smaltite,usually massive, but occasionallyforming rough crystalsup to b or 6 millimeters in diameter. The rest of the vein matter is either calcite or lrag- ments of country rock. The small crystals under investigation seemto representthe latest mineral to form;they are tirr white, and verSzlustrous. The specific gravity, determined on 0.62 gram of carefully selectedcrystals, is 6.29,which is closerto the value usually given for skutterudite (CoAss) than to that for smaltite (CoAsz). The crystals, which seldom exceed a millimeter in diameter, were measured on a Goldschmidt goniometer. The fol- lowing forms were obseryed on each crystal: a(IOO), o(111), d(110), and n(211). The relative development of the forms is shown in figure 1. Nothing observed suggests that the crystals are Frc.1. hemihedral-the faces of the last two formswere not alwayspresent in full, but the omissionsappeared to be quite irregular. These four forms have all been observed on both smaltite and skutterudite. An analysis made on the powdered mineral is shown in I. l Presented at the firrt annual meeting of the Mineralogical Society of America, December 28, 1920. -
The Iron-Ore Resources of Europe
DEPARTMENT OF THE INTERIOR ALBERT B. FALL, Secretary UNITED STATES GEOLOGICAL SURVEY GEORGE OTIS SMITH, Director Bulletin 706 THE IRON-ORE RESOURCES OF EUROPE BY MAX ROESLER WASHINGTON GOVERNMENT PRINTING OFFICE 1921 CONTENTS. Page. Preface, by J. B. Umpleby................................................. 9 Introduction.............................................................. 11 Object and scope of report............................................. 11 Limitations of the work............................................... 11 Definitions.........................:................................. 12 Geology of iron-ore deposits............................................ 13 The utilization of iron ores............................................ 15 Acknowledgments...................................................... 16 Summary................................................................ 17 Geographic distribution of iron-ore deposits within the countries of new E urope............................................................. 17 Geologic distribution................................................... 22 Production and consumption.......................................... 25 Comparison of continents.............................................. 29 Spain..................................................................... 31 Distribution, character, and extent of the deposits....................... 31 Cantabrian Cordillera............................................. 31 The Pyrenees.................................................... -
Fluid Evolution and Ore Deposition in the Harz Mountains
VU Research Portal Isotope analysis of fluid inclusions de Graaf, S. 2018 document version Publisher's PDF, also known as Version of record Link to publication in VU Research Portal citation for published version (APA) de Graaf, S. (2018). Isotope analysis of fluid inclusions: Into subsurface fluid flow and coral calcification. General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. • Users may download and print one copy of any publication from the public portal for the purpose of private study or research. • You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policy If you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. E-mail address: [email protected] Download date: 01. Oct. 2021 Chapter Fluid evolution and ore deposition in the 4 Harz Mountains ydrothermal fluid flow in the Harz Mountains caused widespread formation of economic vein-type Pb-Zn ore and Ba-F deposits during the Mesozoic. This chapter presents a reconstruction of the fluid flow system responsible Hfor the formation of these deposits using isotope ratios (δ2H and δ18O) and anion and cation contents of fluid inclusions in ore and gangue minerals.