 | | Report (chapter) | | proposed in this paper. These Fe-oxide/hydroxide, berthierine/chlorite and siderite dominated groups are further...growth, replacement of carbonates by berthierine or primary berthierine precipitation) in the generation...KAOLINITE SIDERITE *--CALCITE tAPATITE = PYRITE BERTHIERINE/CHLORITE - KAOLINITE LATERITIC MICRONODULE GROWTH...commonest ooid minerals (Table 2: Fe chlorite/berthierine, kaolinite, siderite, calcite, apatite and silica)...(bright)>hematite>geothite>side rite>francolite>berthierine>calcite>silica>kaolinite (dark). same backscatter |  | | Journal (article/letter/editorial) | | Broadford Beds (Lower Jurassic), Skye, north-west Scotland ALISON SEARL School of Earth Sciences, University...of Birmingham, Edgbaston, Birmingham, B 15 2 TT, UK The Broadford Beds comprise a basal carbonate-dominated...lithologies and the sandstones include pisolitic berthierine ironstones and abundant phosphate nodules. The...Parasequences Early diagenesis Carbonate cements Berthierine Phosphate Skye 1. INTRODUCTION Morton (1989)...Broadford section are characterized by abundant berthierine/haematite replacement of bioclasts (Figure 6) |  | | Journal (article/letter/editorial) | | Clay Minerals, Vol. 30, No. 4, 264-274, 1982. BERTHIERINE AND CHAMOSITE IN COAL MEASURES OF JAPAN AZUMA...University of Tokyo 7-3-1 Hongo, Tokyo 113, Japan Berthierine (formerly chamosite) occurs as concretions, lenses...Textural relations in thin sections of the Triassic berthierine rocks and a siderite-kaolinite-berthierinequartz...assemblage in Paleogene rocks indicate that the berthierine formed by reaction of siderite with kaolinite...transformation of siderite and kaolinite to berthierine and quartz occurs progressively under reducing |  | | Journal (article/letter/editorial) | | erals, Vol. 45, No. 4, 564-579, 1997. AN Fe-BERTHIERINE FROM A CRETACEOUS LATERITE: PART I. CHARACTERIZATION...West Lafayette, Indiana 47907 Abstract-An Fe-berthierine occurs in a buried laterite from the Late Cretaceous...differences suggest 2 separate conditions of Fe-berthierine formation . Early forms of Fe-berthierin.e include...characterization. This 1st reported occurrence of Mg-free berthierine has a structural formula close to an idealized...evidence includes siderites collected from the berthierine-bearing horizon having stable isotope values |  | | Report (chapter) | | Liverpool, 4 Brownlow Street, Liverpool L69 3GP, UK 2 Geological Survey of Finland, Espoo, 02151 Finland...7LN, UK 4 Present address: BP Upstream Technology, Chertsey Road, Sunbury, Middlesex TW16 7LN, UK R...chlorite, and other Fe-rich clay minerals such as berthierine and odinite, have been reported to be primarily...but with different crystal structures, such as berthierine. We show that this innovative technique has numerous...another distinct type of Fe-rich clay, such as berthierine. XRD can also be used to determine the mineralogy |  | | Journal (article/letter/editorial) | | Minerals. Vol. 31. No. 3, 173-182. 1983. ORIGIN OF BERTHIERINE IN IRONSTONES DEBA P. BHATTACHARYYA Earth...Missouri 63130 Abstract-To test the hypothesis that berthierine in oolitic irons tones formed by diagenetic transformation...the development of additional characteristic berthierine reflections with time. These data suggest progressive...transformation of kaolinite to berthierine. Microprobe analyses of natural berthierine in oolitic ironstones also...Key Words--Berthierine, Diagenesis, Ironstone, Kaolinite, Synthesis. INTRODUCTION Berthierine (formerly |  | | Journal (article/letter/editorial) | | COMPARISON OF EVOLUTION OF TRIOCTAHEDRAL CHLORITEI BERTHIERINE/SMECTITE IN COEVAL METABASITES AND METAPELITES...type of interstratification in chlorite, with berthierine in metapelites, and smectite (saponite) in metabasites...determined by the Ostwald step rule. Key Words.-AEM, Berthierine, Biikk Mountains, Chlorite, Low-grade Metamorphism...T6th, 1990; A.rkai and Sadek Ghabrial, 1997). Berthierine has been inferred to be a precursor of chlorite...chlorite in diagenetic rocks. Although mixtures of berthierine with chlorite at very fine scales may easily |  | | Report (chapter) | | in a major, oolitic, berthierine-chamosite-siderite iron ore field, Cleveland, UK PAUL L. Y O U N G E...University o f Newcastle Newcastle upon Tyne NE1 7RU, UK (e-mail: p. l.younger@ncl.ac.uk) Abstract: The Cleveland...the principal ore minerals are iron silicates (berthierine, chamosite) and carbonates (siderite). The siderite...limestone-hosted haematite ore bodies of west Cumbria (UK) (author's own unpublished data). Nevertheless, it...Between 1850 and 1912, Cleveland effectively dominated UK iron ore production (Whitehead et al. 1952), with |  | | Journal (article/letter/editorial) | | Beryl, bertrandite, willemite, genthelvite,and berthierine are present,but beryl and genthelvitedo not coexist...coexist. Analyses of genthelvite and berthierine indicate for the first time that intermediate solid...[Zn"(BeSiOo),S]and helvite [Mn,(BeSiOo)rS]and between berthierine [(Si,-.Al-)(Fe]1-Fel*)O5(OH4)l and fraipontite...(Fig. l). An intermediate composition between berthierine (Sir_-,{1.)(Fel1,Fel+)Or(OH)ol and fraipontite...quartz, genthelvite,galena,sphalerite,and zincian berthierine, (l l) syenitecontaining galena,willemite, and |  | | Report (chapter) | | diagenetic sequence Calcite fringe cement (Fig. la), berthierine grain coatings (Fig. l b) and slight development...cements (Fig. lb) are identified as berthierine (XRD). Berthierine also occurs as large flakes which appear...appear to be replacing detrital micas. Berthierine is a common trace component of storm layers in the...from where berthierine was reworked under high-energy conditions. The occurrence of berthierine implies...environments, As a group, the green iron silicates (berthierine, celadonite and glaucony (Odin & Matter 1981) |  | | Report (chapter) | | being the main components of red deposits and berthierine and siderite predominating in green deposits...post-depositional processes. It is demonstrated that berthierine can be synthesized from iron hydroxides in solution...of silicic and carbonic acid controls whether berthierine or siderite is formed. In red deposits the concentration...goethite and m i n o r a m o u n t s of magnetite; berthierine (7A) and chamosite (14A) are the main iron silicates...goethites and hematites in solid solution; berthierine m a y contain appreciable a m o u n t s of a |  | | Journal (article/letter/editorial) | | succession at Castle Hill, Scarborough, North Yorkshire, UK John H. Powell* & James B. Riding British Geological...Environmental Science Centre, Keyworth, Nottingham NG12 5GG, UK * Correspondence: jhp@bgs.ac.uk Abstract: Site investigation...Lower Callovian Cornbrash Formation, rich in berthierine ooids and abundant shelly fossils, and the attenuated...extensively bioturbated, silty sandstone with abundant berthierine–pyrite ooids in the lower part. It was deposited...British Geological Survey, Keyworth, Nottingham, UK, in March 2014. His doctoral research and publications |  | | Journal (article/letter/editorial) | | University of St. Andrews, St. Andrews, KY16 9AL Scotland, UK c State Key Laboratory of Palaeobiology and...factors controlling the moretane/hopane ratios. Berthierine, a clay that requires reducing conditions for...the berthierine is authigenic or detrital, but future determination of the origin of berthierine at Meishan...including illite, chlorite, smectite, kaolinite, berthierine, and mixed layer illite/smectite (Table 3). The...through some intervals of the assemblage. Notably, berthierine, which is usually formed under reducing conditions |  | | Journal (article/letter/editorial) | | other reaction microstructures in the chlorite-berthierine series Received: 25 April 1995yAccepted 5 April...nonperiodically interstratified structures composed of berthierine and chlorite layers in low-temperature “chlorite”...transformation products formed by reaction from berthierine (serpentine structure) to chlorite. Periodically...of chlorite (C) and serpentine-like (S) (or berthierine) layers include (CS), (CCS), (CCCS), (CCCCS)...solid-state transformation). The reaction from berthierine to chlorite is crystallographically much like |  | | Journal (article/letter/editorial) | | 583–592, 2007. CRYSTALLIZATION OF ‘POCKET’ BERTHIERINE FROM THE PULSIFER GRANITIC PEGMATITE, POLAND...of berthierine has been found in the Pulsifer granitic pegmatite, near Auburn, Maine. Berthierine was...fine-grained anhedral flakes with muscovite. Berthierine samples from all associations are depleted in...enrichment in Mn. The textural relationships of the berthierine assemblage indicate that its formation is probably...direct contrast to the typical formation of berthierine in granitic pegmatites that is generally related |  | Bourdelle, Franck, Dubois, Michel, Lloret, Emily, Durand, Cyril, Addad, Ahmed, Bounoua, Schéhérazade, Ventalon, Sandra, Recourt, Philippe (2021) Kaolinite-to-Chlorite Conversion from Si,Al-Rich Fluid-Origin Veins/Fe-Rich Carboniferous Shale Interaction. Minerals, 11 (8) 804 doi:10.3390/min11080804 | Journal (article/letter/editorial) | | conversion via berthierine as intermediate phase or direct formation of berthierine/chlorite mix, either...contains some 7Å isochemical layers, as relict of berthierine. Therefore, we advance that the conversion takes...precipitation of berthierine following by a second step involving solid state berthierine-chlorite conversion...the direct precipitation of a chlorite-rich/berthierine-poor mix driven by the Fe/(Fe + Mg) ratio, at...chlorite; kaolinite-to-chlorite conversion; berthierine; Carboniferous shale Publisher’s Note: MDPI |  | | Journal (article/letter/editorial) | | Harrison Building, North Park Road, Exeter EX4 4QF, UK 3 (ex officio, Editor-in-Chief, Clays and Clay Minerals)...Institute, Craigiebuckler, Aberdeen AB15 8QH, Scotland, UK 4 Centre de Recherche de la Matière Divisée...Talc-pyrophyllite Trioctahedral Dioctahedral Lizardite, berthierine, amesite, cronstedtite Kaolinite, dickite, nacrite |  | | Report (volume) | | Enterprise Centre Bras~mill Lane BaLh .A., on BA I 3J UK (Orders: Tel. 0225 445046) Firs t pub Iished I 989...nework VELDE, B. Phyllosilicalc fo rn1ation in berthierine peloicls and iron oolites 3 HARDER, H . l\l...ironstones. For exa 111plc, iron ore production in the UK reached a peak of 20.2m tonnes in 1942, when i1nportc...deposits contr ibuted about 3.63m tonnes of the total UK production ol 3.74m ton nes (Bowie et al. 1978)....Department or Geology, UNCC, PO Box 914, Cardiff CF ! 3YE, UK \·V. E. G. TAYLOR. Facu lty of Appl ied Sciences |  | | Journal (article/letter/editorial) | | sample ZF-0, epidote is the major mineral and berthierine (instead of chlorite) is a major phase in sample...can be found. In sample ZF-3, frequent 7 Å berthierine intercalations within the 14 Å chlorite can...disparity between the two techniques (mostly berthierine in XRD vs. mostly chlorite in HRTEM) is easily... x x i x i i Quartz Albite Mica Chlorite Berthierine Calcite Epidote Hematite x: major minerals i:...image and SAED (inset) of sample ZF-3 showing berthierine layers interleaved with chlorite. useful mineral |  | | Journal (article/letter/editorial) | | Neoproterozoic–Cambrian Dalradian Supergroup of Scotland and Ireland: Implications for Neoproterozoic stratigraphy...Earth Sciences, University of Durham, Durham DH1 3LE, UK Department of Geology, Trinity College Dublin, Dublin...Ballachulish Slate Formation of the Dalradian Supergroup, Scotland yields a depositional age of 659.6 ± 9.6 Ma. This...(kaolinite, muscovite and a serpentine group mineral, berthierine), that the Re–Os systematics have been disturbed...al., 1994; Soper, 1994; Cawood et al., 2007). Scotland occupied a unique position within the Rodinia |  | | Journal (article/letter/editorial) | | Clay Min erals. Vo!. 44. No. 1. \-2\. 1996. BERTHIERINE FROM THE LOWER CRETACEOUS CLEARWATER FORMATION...Ontario, London, Ontario, Canada N6A 5B7 Abstract-Berthierine occurs as pore-linings of well crystallized laths...equal amounts of monoclinic and olthohexagonal berthierine. Minor, but variable, quantities of inseparable...Fe-rich smectitic clays. Clearwater Formation berthierine has a range of chemical compositions that differ...Clearwater Formation berthierine fall between values normally reported for berthierine and odinite. The average |  | | Book | | Hyman Ltd 15/17 Broadwick Street, London WIV IFP, UK Unwin Hyman Inc., 8 Winchester Place, Winchester...Tertiary volcanic sequences of Northern Ireland and Scotland. Soil-forming processes Climate always exerts...cavities in a Lower Carboniferous caliche profile, Scotland. Each zone represents one episode of growth of...Cathodoluminescence. Figure 2.2 Caliche, Carboniferous, Scotland. Concretionary calcareous nodular structure emphasized...~ (;'O • Figure 2.4 Fireclay, Carboniferous, Scotland. An aggregate (clear) of aluminium oxides and |  | | Book (edition) | | Hyman Ltd 15/17 Broadwick Street, London W1V 1FP, UK Unwin Hyman Inc., 8 Winchester Place, Winchester...Tertiary volcanic sequences of Northern Ireland and Scotland. Soil-forming processes Climate always exerts...cavities in a Lower Carboniferous caliche profile, Scotland. Each zone represents one episode of growth of...Cathodoluminescence. Caliche, Carboniferous, Scotland. Concretionary calcareous nodular structure emphasized... 12 SOILS Figure 2.4 Fireclay, Carboniferous, Scotland. An aggregate (clear) of aluminium oxides and |  | | Journal (article/letter/editorial) | | Mineralogist, Volume 87, pages 1607–1615, 2002 Berthierine/chamosite, corrensite, and discrete chlorite...rosette-like pore fillings of interstratified berthierine/chamosite (B-C) and honeycomb-like pore linings...chlorites with randomly interstratified 7 Å berthierine-like layers (Hornibrook and Longstaffe 1996;...structural changes that include transformation of 7 Å berthierine-like layers to 14 Å chamosite-like layers via...assess relationships between interstratified berthierine-chamosite (B-C) rosettes, which are nearly ubiquitous |  | | Journal (article/letter/editorial) | | to apply an authigenic iron silicate such as berthierine rather than a mineral in the post-burial metamorphic...calculations including the reduced iron silicate berthierine, which is present in the ∼2.2 Ga Waterval Onder...greenalite is the wrong reduced iron silicate. Berthierine (thermodynamic data from Fritz and Toth, 1997)... (1) can be written for equilibrium between berthierine and siderite and kaolinite as follows: Fe2 Al2...present day values (Fig. 1). Furthermore, the berthierine at Waterval Onder is not a pure end member, thus |
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