 | | Report (chapter) | | quiescent and active extensional tectonics in NE Spain J. JAVIER ÁLVARO1,2* & BRIGITTE VAN VLIET-LANOË2...Ciencias de la Tierra, Universidad de Zaragoza, 50009-Zaragoza, Spain 2 Sciences de la Terre, Université...architectures in the Iberian and Hesperian Chains of NE Spain, as a result of quiescent and active extensional...areas, such as the Iberian and Hesperian Chains (Spain; Carls 1975; Fortuin 1984), Thuringia (Steiner &...instance, in the Iberian and Hesperian Chains (NE Spain). Their marine strata are comparable with other |  | | Journal (article/letter/editorial) | | Article Mineral Formation under the Influence of Mine Waters (The Kizel Coal Basin, Russia) Elena Menshikova...water sources by acid mine waters and runoff from rock dumps is particularly acute. Mine waters are acidic...high sulfur content (15%). Uncontrolled inflow of mine water into rivers (about 22 million m3 annually)...of sand-gravel and silty-clayey sediments. The sandy-gravel grains in the bottom load are mainly composed...of the influence of mine waters. Keywords: AMD-precipitates; AMD-minerals; mine water; waste rock dumps; |  | Courtin-Nomade, Alexandra, Waltzing, Thomas, Evrard, Catherine, Soubrand, Marilyne, Lenain, Jean-François, Ducloux, Emmanuelle, Ghorbel, Sonda, Grosbois, Cécile, Bril, Hubert (2016) Arsenic and lead mobility: From tailing materials to the aqueous compartment. Applied Geochemistry, 64. 10-21 doi:10.1016/j.apgeochem.2015.11.002 | Journal (article/letter/editorial) | | the mineralogy of the tailings of a former AgePb mine (Auzelles district, France) and the contribution...such as Fe and/or Pb and/or Mn oxides (e.g., lepidocrocite, goethite -up to 15 wt% of Pb was measured-...depends on the Fe/Mn oxides (e.g., goethite, lepidocrocite) and carbonates (cerussite) which are the less...They constitute large heaps of more or less coarse sandy material affected by retrogressive erosion due to...bottom left map indicates the location of the waste mine. 2.2.3. EPMA BSE imaging and quantitative analysis |  | | Journal (article/letter/editorial) | | mineralogical properties of goethite and jarosite from a mine drainage environment using chemical extraction techniques...is also identified in one sample. Key Words-Acid Mine Drainage, Goethite, Groundwater, Jarosite, Mossbauer...combined atmospheric oxidation of iron sulfides in mine waste deposits and the infiltration of water into...secondary Fe minerals have been identified in mine deposits and mine drainage systems, ranging in crystallinity...well-crystalline products (such as goethite and lepidocrocite); jarosite is the most commonly identified basic |  | | Book (edition) | | The oxide hydroxides 14 Goethite a-FeOOH 14 Lepidocrocite c-FeOOH 18 Akaganite b-FeOOH and schwertmannite...Cation substitution 39 General 39 Goethite and lepidocrocite 42 Al substitution 42 The Iron Oxides: Structure...character 69 Twinning 71 Effect of additives 73 Lepidocrocite 74 Akaganite and schwertmannite 75 Ferrihydrite...dimensions The iron oxides 101 Goethite 102 Lepidocrocite 103 Akaganite and schwertmannite 104 d-FeOOH...The different iron oxides 123 Goethite 123 Lepidocrocite 124 Akaganite 124 d-FeOOH, feroxyhyte and high |  | | Journal (article/letter/editorial) | | Answer: (a) Commonly the pisoliths incorporate sandy grit material as well as parts of broken pisoliths...Balasubramaniam): What is the thickness of the sandy layer that can overlie the pisolitic laterite? ...H. Leonardos) : (a) How did you distinguish lepidocrocite from goethite? (b) How do you interpret the...you imagine as having taken place? Answer Lepidocrocite does not occur in the materials I described...diffraction will distinguish goethite from lepidocrocite. (b) I did not describe termite channels in |  | | Journal (article/letter/editorial) | | in the coarse clay and fine silt fractions. Lepidocrocite was identified in the Aquent. Chlorite, which...a silty clay at the surface and the other is a sandy clay loam, while the Udifluvents are silt loams...results of the western Amazon soils. Silty clay Sandy clay loam Clay Silt loam Silt loam Particlesize...pyrophyllite. Lepidocrocite in the Aquent is indicated by the peak at 0.631 nm. Lepidocrocite is consistent...the fine clay fractions of any of the soils. Lepidocrocite occurs in the fine clay of soil S3. DISCUSSION |  | Prokopchuk, B. I., Levin, V. I., Metelkina, M. P., Shofman, I. L., Kolesnikova, T. I. (1987) TRACING THE SOURCES OF DIAMOND PLACERS USING NONTRADITIONAL INDICATORS. International Geology Review, 29 (9) 1084-1092 doi:10.1080/00206818709466202 | Journal (article/letter/editorial) | | goethite, there are "palmate" intergrowths of lepidocrocite, forming a microtexture of "frosted glass pattern...associated with its distinct mutual intergrowth with lepidocrocite. On the x-ray pat terns, goethite is readily...amount of gold (0.018-0.024 ppm). oolite-like lepidocrocite-goethite nodules with a minute trace of clay...individual nodules (40-60%) and is present in the sandy matrix of the conglomerates in the form of clasts...Ni corner. The compositions of the hematite-lepidocrocite-goethite pebbles in the Neogene karst-filling |  | Mun, Yulia, Strmić Palinkaš, Sabina, Forwick, Matthias, Junttila, Juho, Pedersen, Kristine Bondo, Sternal, Beata, Neufeld, Kai, Tibljaš, Darko, Kullerud, Kåre (2020) Stability of Cu-Sulfides in Submarine Tailing Disposals: A Case Study from Repparfjorden, Northern Norway. Minerals, 10 (2) 169 doi:10.3390/min10020169 | Journal (article/letter/editorial) | | 13 February 2020 Abstract: Mine tailings that were produced during the exploitation...the mineralogy and geochemistry of the submarine mine tailings and underlying natural marine sediments...Cu concentration is related to the deposition of mine tailings. In contrast, Ni and Cr concentrations...found both in natural marine sediments and in the mine tailings. They are generally well-preserved with...Ulveryggen; Nussir; copper sulfides oxidation; submarine mine tailings Minerals 2020, 10, 169; doi:10.3390/min10020169 |  | | Catalog/List | | SUMMER 8989 iSamp ^effeiuMineraG Mineral Dealer & Mine Agent "Endsleigh'', 50 Daniell Road, Truro, Cornwall...x 50mm x 50mm. £5.00. ANTIMONY. Montril,Granada,Spain. Small rare reference specimen of crystalline native...Babingtonite up to 2mm. £5.00. 22. BARITE on CALCITE. Elk Mine,Meade County,S.Dakota,U-S.A. Beautiful terminated...4J. CHALCEDONY. (Fluorite Pseudomorph). Holmbush Mine,Callington,Cornwall. Interesting creamy array of...25®®• £18.00. 47- CHALCOPYRITE. Hingston Downs Mine,Callington.Cornwall. Attractive deep golden display |  | | Journal (article/letter/editorial) | | where the coastal aquifer consists of permeable sandy sediment. A selective dissolution method was used...Hansel The permeable sediments that characterize sandy beaches, which are often influenced by groundwater...distribution of colored iron (hydr)oxides within the sandy matrix of the samples. For analysis of total uranium...ferrihydrite (64%) with 26% goethite and 10% lepidocrocite. The yellow coating of core 5 contained 65%...significant levels. It had the largest amount of lepidocrocite (19%), and goethite and ferrihydrite represent |  | Gault, Andrew G., Ibrahim, Alexandre, Langley, Sean, Renaud, Robert, Takahashi, Yoshio, Boothman, Christopher, Lloyd, Jonathan R., Clark, Ian D., Ferris, F. Grant, Fortin, Danielle (2011) Microbial and geochemical features suggest iron redox cycling within bacteriogenic iron oxide-rich sediments. Chemical Geology, 281 (1) 41-51 doi:10.1016/j.chemgeo.2010.11.027 | Journal (article/letter/editorial) | | the BIOS mineralogy, with more crystalline lepidocrocite and goethite phases comprising the remainder...phases, including 2-line ferrihydrite, goethite, lepidocrocite, hematite, magnetite, vivianite, siderite, hornblende...indicative of the crystalline iron oxyhydroxides lepidocrocite (CR01, CR02, and CR05) and goethite (CR01 and...2-line ferrihydrite, and to a lesser extent lepidocrocite and goethite, give rise to the broader peaks...mineralogy (Fig. 4, Table 2), while the inclusion of lepidocrocite (22–27%) and goethite (8–12%) further improved |  | | Journal (article/letter/editorial) | | 5 Cretaceous, 6 Fault, 7 Producing or abandoned mine 1. Introduction The northeastern Rhenish Massif...mineralizations occurs: a Cu-Ag mine and a Pb-Zn mineralization near Dexbach, a copper mine in Medebach, gold mines...copper mine in Korbach-Goldhausen and copper mines in Marsberg (Fig. 1). The only producing mine left in...mineralization was drilled in the vicinity of the "Elisabeth" mine. The 190 m long percussion drilling passes through...1 Hg). The 20 m thick greyish shales with some sandy intercalations are overlain by a 28 m thick sequence |  | Kwon, Man Jae, Boyanov, Maxim I., Antonopoulos, Dionysios A., Brulc, Jennifer M., Johnston, Eric R., Skinner, Kelly A., Kemner, Kenneth M., O’Loughlin, Edward J. (2014) Effects of dissimilatory sulfate reduction on FeIII (hydr)oxide reduction and microbial community development. Geochimica et Cosmochimica Acta, 129. 177-190 doi:10.1016/j.gca.2013.09.037 | Journal (article/letter/editorial) | | electron donor, with ferrihydrite, goethite, or lepidocrocite and high (10.2 mM) or low (0.2 mM) sulfate as...FeIII reduction was higher in ferrihydrite or lepidocrocite incubations than in goethite incubations. Propionate...hematite (a-Fe2O3), goethite (a-FeOOH), and lepidocrocite (c-FeOOH), as well as aluminosilicates (e.g...below. Two-line ferrihydrite, goethite, and lepidocrocite were synthesized according to published methods...water and incubated at 70 °C for 60 h. For lepidocrocite synthesis, 11.93 g of FeCl24H2O was dissolved |  | Liu, Jia-Jun, Yang, Long-Bo, Dai, Hong-Zhang, Yuan, Feng, Zhu, Bing-Yu (2014) Discovery and significance of Cu-Zn intermetallic compounds in the Jingxi gold deposit, western Tianshan Mountains, NW China. Geological Journal, 49 (6) 584-598 doi:10.1002/gj.2583 | Journal (article/letter/editorial) | | upper Devonian age consists of quartz sandstone and sandy conglomerate (Zhai et al., 2009). Figure 1. Tectonic...consisting mainly of conglomerates interlayered with sandy conglomerates; (2) acidic tuff Geol. J. 49: 584–598...deposits can be found in the Tulasu Basin, with the Axi mine being the largest (Fig. 2). Similar but larger and...GEOLOGICAL CHARACTERISTICS OF JINGXI GOLD DEPOSIT 3.1. Mine geology The Jingxi gold deposit is the largest gold...interparticle native gold between goethite and lepidocrocite; (I) native gold hosted by quartz–siderite veins |  | | Journal (article/letter/editorial) | | (o'-FeOOH) in association with goethite and lepidocrocite was found as a dominant mineral i? some ~sty...Words-Feroxyhite, Goethite, Infrared spectroscopy, Iron, Lepidocrocite Mossbauer spectroscopy, Synthesis. ' INTRODUCTION...to 5, with its two polymorphs, goethite and lepidocrocite. A H 2 0 2 was added drop wise so that complete...increase in the proportion of goethite and lepidocrocite (Table 2). The synthetic samples were somewhat...with increasing proportion of goethite and lepidocrocite (Table 2). This supports the idea that organic |  | | Journal (article/letter/editorial) | | of malachite also present. "Specimen comes from a mine somewhere in Yuma County, Arizona."—on label. ARKANSAS—In...of Diamonds is an abandoned diamond mine (the only diamond mine in the U.S.) that has been opened up...xls on dark gray limestone. "Found at a coal strip mine about 5 miles southwest of Monroe, Iowa, in Marshall...shall have to wait till I can get to the Winnfield mine (at Winnfield, Winn Parish, La.). I have had so...could surely get it fixed for you to go into the mine."—letter dated May 31, 1956, from Mark W . Mitchell |  | | Journal (article/letter/editorial) | | during goethite formation, whereas the gravelly-sandy sediments in the other lake did not. The compositions...about 6 k m f r o m a pyrite-pyrrhotite-chalcopyrite mine. T h e m a i n rock types are m i c a schists, black...respectively. 4 Gt = goethite; Fh = ferrihydrite; Lp = lepidocrocite; Bn = birnessite; ( ) = traces. RESULTS AND...sediments and soils o f the Lake Eno area than in the sandy-gravelly sediments o f the Lake Murto area. Finally...NaOH-extractable Si in the Lake Murto samples. Lepidocrocite was identified in three depths o f one sampling |  | | Journal (issue) | | Cairncross & C. R. Anhaeusser Minerals of the Linwood mine, Scott County, Iowa ............. 231 by P. L. Garvin...Crawford Famous mineral localities: Hiendelaencina, Spain ............... 241 by M. Calvo & E. Sevillano The...in the still open underground workings of the Gem mine. He encountered an open pocket containing well formed...conglomerate. The stories of these early discoveries and mine developments, some of which were conducted under...,,.•• MINE r •• •• ' ··, . TRANSVAAL e e e \ . |  | | Journal (article/letter/editorial) | | with Fe-reduction and methanogenesis in a shallow sandy aquifer, Rømø, Denmark RASMUS JAKOBSEN1,2,* and...1984; Chapelle and Lovley, 1992), smaller alluvial sandy aquifers (Leuchs, 1988), and river bank infiltration...should extract all of the ferrihydrite and lepidocrocite, most of the goethite and hematite, plus some...and goethite - corresponding to lepidocrocite. Therefore lepidocrocite (FeOOH, DG0f 5 2113 kcal/mol) was...example, for reduction of the Fe(III)-oxide lepidocrocite; 2FeOOH 1 H2 1 4H1 3 2Fe21 1 4H2O (7) The |  | | Journal (article/letter/editorial) | | (hydr)oxides such as goethite, hematite or lepidocrocite were never doubtlessly identified. The Fe(II)-containing...4H2O), goethite (α-FeOOH), hematite (α-Fe2O3), lepidocrocite (γ-FeOOH), sulphates (schwertmannite (Fe16O16(OH)y(SO4)z...following Fe sudoite Goethite Clinochlore Lepidocrocite Chlorite Magnetite 2- Green rust (CO 3 )...matrix. Typical soil Fe oxides such as goethite, lepidocrocite and hematite were never doubtlessly detected...we checked the performance of goethite and lepidocrocite spectra instead of that of ferrihydrite for |  | Maciąg, Łukasz, Rydzewska, Urszula, Skowronek, Artur, Salwa, Sylwester (2019) Mineralogy and Geochemistry of Fluvial-Lacustrine Pisolith Micronodules from the Roztoka Odrzańska, Odra River, NW Poland. Geosciences, 10 (1) 3 doi:10.3390/geosciences10010003 | Journal (article/letter/editorial) | | The material was found in the gyttja and sandy gyttja/sandy sapropel muds, including also the shells...isomorphic substitutions (contaminated) [51]; lepidocrocite [52]; ferrihydrite [53]; traces of native Fe...isomorphic substitutions (contaminated) [51]; 4. lepidocrocite [52]; 5. ferrihydrite [53]; 6. traces of 10...pH—proto-hematite, L—lepidocrocite, Fh—ferrihydrite, G—goethite, H—hematite, L—lepidocrocite, Fh—ferrihydrite...Fe2O3 wüstite FeO proto-hematite Fe1.9H0.06O3 lepidocrocite γ-FeO(OH) ferrihydrite (Fe3+)2O3·0.5H2O native |  | | Journal (article/letter/editorial) | | arsenate coprecipitated with ferrihydrite, lepidocrocite and goethite was studied during reductive dissolution...ferrihydrite and lepidocrocite and from 0 to 0.001 for goethite. For ferrihydrite and lepidocrocite, all the...surface of lepidocrocite. During Fe2+ catalysed transformation of ferrihydrite and lepidocrocite, arsenate...was transformed into lepidocrocite, goethite and magnetite whereas lepidocrocite either remained untransformed...probably the most important adsorbents for arsenic in sandy aquifers because of their great abundance and strong |  | | Journal (article/letter/editorial) | | Kinetics of reductive bulk dissolution of lepidocrocite, ferrihydrite, and goethite OLE LARSEN*,† and...goethite. During one of the reduction experiments, lepidocrocite crystals were subsampled and the change in crystal...transmission electron microscopy results for lepidocrocite showed strong etch-pitting of the crystals parallel...The Netherlands). XRD peak broadening of the lepidocrocite 020 line was used to calculate crystallite size...differing orders, which is not the case for lepidocrocite. But by assuming that strain effects are negligible |  | Chukanov, N. V., Pekov, I. V., Levitskaya, L. A., Zadov, A. E. (2009) Droninoite, Ni3Fe3+Cl(OH)8 · 2H2O, a new hydrotalcite-group mineral species from the weathered Dronino meteorite. Geology of Ore Deposits, 51 (8) 767-773 doi:10.1134/s1075701509080091 | Journal (article/letter/editorial) | | taenite, violarite, troilite, chromite, goethite, lepidocrocite, nickelbischofite, and amorphous Fe3+ hydroxides...fragments of the meteorite recovered from waterlogged sandy interlayers and lenses are highly weathered; they...crystalline goethite, hematite, akaganeite, lepidocrocite, and amorphous Fe3+ oxides and hydroxides. Partially...compact and contains pockets of orange-brown lepidocrocite, brown veinlets of the insufficiently studied...kamacite, under terrestrial conditions: goethite, lepidocrocite, nickelbischofite, and amorphous Fe3+ hydroxides |
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