 | | Journal (article/letter/editorial) | | Minerals (1984) 19, 709-735 THE SOIL CLAYS OF GREAT SCOTLAND M . J. W I L S O N , D. C. BAIN BRITAIN: II...revised 13 June 1984) A B S TR A C T: The soils of Scotland are relatively young, being developed mainly on...INTRODUCTION The mineralogy of the soil clays of Scotland was last reviewed by Mitchell (1955) and by Mackenzie...information on the major soil associations in Scotland. It should be noted, however, that this paper...clays. Scottish soils In general, the soils of Scotland are relatively young, having developed since the |  | | Journal (article/letter/editorial) | | Vol. 27. No.4. pp. 297-300. 1979. EVIDENCE FOR IMOGOLITE IN CANADIAN SOILS Key Words---Canadian soils,... Electron micrographs, Fibers, Imogolite, Soils. Imogolite, a fibrous alumino silicate with a characteristic...and Harward, 1974; Wada, 1977). Occasionally, imogolite has been found in soils derived from parent materials...1966; Jaritz, 1967; Tait et al., 1978). Thus, imogolite is not unique to volcanic ash soils and Tait et...distributed than is at present recognized. Hitherto, imogolite has not been positively identified in Canadian |  | | Journal (article/letter/editorial) | | in Great Britain IMOGOLITE FROM NEW GUINEA (Received 29 December 1973) Imogolite is a hydrous aluminium...product of pyroclastic materials in many locali- imogolite and the vermicular gibbsite could be identified...untreated soil-despite the tion to the fact that imogolite occurs in gels derived from fact that there was...by the large amount of organic debris present. Imogolite has thus been found in all the soils listed in...present note is to describe the identification of imogolite in some very young volcanic ash soils from New |  | | Journal (article/letter/editorial) | | 51, P P . 327 8 Mineral nomenclature: imogolite IMOGOLITE was originally inadequately described by...Mineralogical Association (CNMMN) rejected the name imogolite (Hey, 1967). Fleischer (1983) has given irnogolite...Internationale pour l'Etude des Argiles (AIPEA) approved imogolite as a species (Bailey, 1980). In 1986, the C N...original decision and approved that imogolite is a valid species. Imogolite has a chemical formula of AlzSiO3(OH)~...0SIO2, 2.5 3.0H20 for allophane (Wada, 1977). Imogolite has a two dimensional tabular structure with b |  | | Journal (article/letter/editorial) | | adsorption of copper complexes on montmoriilonite and imogolite B. A. GOODMAN, H. L. GREEN and D. B. MCPHAIL...Soil Research. Craigiebuckler, Aberdeen AB9 2QJ Scotland, U.K. (Received October 15. 1982: accep@d in revised...similar to that from copper humate. but with imogolite the spectra from the Cu(ll>humic acid system wzrc...with the uncompkxcd Cu(I1) ion. indicating that imogolite is able to extract copper from huniic acid. INTRODUCTION...obtained for comparison. Montmorillonite and imogolite were used as minerals having widely different |  | | Journal (article/letter/editorial) | | Soil Research, Craigiebuckler, Aberdeen, AB9 2QJ. Scotland (Received 20 October 1978) ABSTRACT:Fromequi...hence the heat and free energy of formation of imogolite: AH~ (298.15 K)= -3189.6 _+4.1, AG~ (298.15 K)...indicating that imogolite, halloysite and gibbsite can co-exist in soils, but that imogolite is metastable...widening range of silica concentrations in which imogolite is more stable than halloysite, although both...for the f o r m a t i o n and persistence o f imogolite in soils and sediments are not yet well understood |  | Goodman, B. A., Russell, J. D., Montez, B., Oldfield, Eric, Kirkpatrick, R. J. (1985) Structural studies of imogolite and allophanes by aluminum-27 and silicon-29 nuclear magnetic resonance spectroscopy. Physics and Chemistry of Minerals, 12 (6) 342-346 doi:10.1007/bf00654344 | Journal (article/letter/editorial) | | © Springer-Verlag1985 Structural Studies of Imogolite and Allophanes by Aluminum-27 and Silicon-29 Nuclear...Soil Research, Craigiebuckler, Aberdeen AB9 2QJ, Scotland z School of Chemical Sciences, University of Illinois...sample-spinning (MASS) techniques indicate that the imogolite and protoimogolite components of allophanes are...1981, 1982) that imogolite and imogolite-like allophane (designated proto-imogolite allophane) are produced...presence of a non-polymerized silicate anion in the imogolite structure, and subsequent work by Cradwick et |  | | Journal (article/letter/editorial) | | spherules is made up of imogolite structural units similar to "proto-imogolite." X-ray fluorescence gave...structure, or bonded on the inside surface of an imogolite-like structure. Allophanes with AIISi ratios between...and 2.0 appear to be mixtures of the " proto-imogolite" structure and the allophane (AIISi = 1.0) structure...Words-Allophane, Deuterium exchange, Halloysite , Imogolite, Infrared spectroscopy. INTRODUCTION Allophane...composed of distorted imogolite structures that can be descr,bed as "proto-imogolite allophane" (Y. C. Farmer |  | | Journal (article/letter/editorial) | | of 4-coordinated AI in the heated materials. 'Imogolite structures' were decomposed progressively at higher...allophanes appears to be related to the content of 'imogolite structures' and to the polymerization status of...of the silica component. Key Words--Allophane, Imogolite, Infrared spectroscopy, Silica/alumina ratio,...severely weathered but contains no gel films of imogolite, in contrast with those from Kitakami (Wada and...samples were typical allophanes. Less than 0.5% imogolite tubes could be seen by TEM. The composition and |  | | Journal (article/letter/editorial) | | AUSi ratios close to 2.0 should be called "proto-imogolite" allophane . Two soil allophanes had a similar...did not have the imogolite structure. Key Words--Allophane, Crystal structure, Imogolite, Infrared spectroscopy...(Hemni and Wada, 1976; Wada and Wada, 1977). Imogolite is also present in ma ny volcanic ash soils and...gives an ideal composition of (OH)3Alz03SiOH. Imogolite is used here as a model in the determination of...and the samples stored as dilute suspensions. Imogolite (sample Ky G) was separated from gel which filled |  | | Report (chapter) | | amorphous alumino-silicate complex called proto-imogolite allophane, which may well be the predominant form...possible mechanism for the formation of proto-imogolite is that aluminium is complexed by a simple chelating...hydroxyaluminium orthosilicate complex (proto-imogolite) in podzolization. In: Migrations organo-min~rales...RUSSELL, J. D. & BERROW, M. L. 1980. Imogolite and proto-imogolite allophane in spodic horizons. Evidence...Soil Research, Craigiebuckler, Aberdeen AB9 2Q J, Scotland. D. JONES, Department of Microbiology, The Macaulay |  | | Journal (article/letter/editorial) | | Research Institute, Craigiebuckler, Aberdeen, Scotland AB9 2QJ, UK. Weathering has been studied in an upland...upland catchment in the Cairngorm Mountains in Scotland receiving an intermediate level of acidic deposition...varying amounts of polymeric hydroxyaluminium. Imogolite/allophanic material occurs in some B horizons...and significance o f gibbsitic montane soils in Scotland, U.K. Arctic and Alpine Research 21,417-424. |  | | Journal (article/letter/editorial) | | mineral formation.These minerals include allophane,imogolite,opaline silica and some halloysites,and have distinctive...also to particular minerals such as allophane, imogolite and opaline silica. These minerals contribute...difference infrared spectroscopy. 2.2. Imogolite Imogolite was discovered by Yoshinaga and Aomine (1962)..."Imogo" volcanic ash in Kyushu, Japan ( Table I). Imogolite appears as smooth and curved threads with diameters...and 2.0 nm, respectively. An ideal formula of imogolite derived from its structure analysis is: SiO~-A120:~ |  | | Journal (article/letter/editorial) | | Terrace, Weathering. INTRODUCTI ON Allophane and imogolite, amorphous to very poorly crystalline aluminosilicates...observed coatings and infillings of allophane and imogolite in Andisols. A number of raised marine terraces...3 , SiO 2 and H 2 O, suggesting allophane or imogolite. Previous works show that the Al/Si atomic ratio...of allophane varies between 1 and 2.5, while imogolite is close to 2.0 (Newman and Brown, 1987; Wada...allophane of high Al/Si ratio, close to 2.0, has an imogolite-like structure called protoTable 2. Electron microprobe |  | Uzarowicz, Ćukasz, Skiba, Stefan, Skiba, MichaĆ, Ć egviÄ, Branimir (2011) Clay-mineral Formation in Soils Developed in the Weathering Zone of Pyrite-Bearing Schists: A Case Study from the Abandoned Pyrite Mine in WieĆciszowice, Lower Silesia, SW Poland. Clays and Clay Minerals, 59 (6) 581-594 doi:10.1346/ccmn.2011.0590604 | Journal (article/letter/editorial) | | crystalline Al and Si phases, e.g. allophane and imogolite (Farmer et al., 1980; Gustafsson et al., 1999)...ferruginous chlorite in a podzol from Argyllshire, Scotland. Geoderma, 17, 193 208. Bain, D.C. and Russell...basalt and its weathering products from Morvern, Scotland: II. Swelling chlorite. Clay Minerals, 16, 203...in 593 acid soils from upland catchments in Scotland. Clay Minerals, 25, 467 475. Balcerzak, E., DobrzynÌski...Russell, J.D., and Berrow, M.L. (1980) Imogolite and proto-imogolite allophane in spodic horizons: evidence |  | | Journal (article/letter/editorial) | | the minerals kaolin (kaolinite and halloysite), imogolite, and AI(OH)3 (gibbsite and amorphous) and to limited...values from the literature [15,34, 35,38,39]. Imogolite is included in the analysis since the mineral...log K(aA? Ă· / a 3H + ) Kaolinite Halloysite Imogolite Gibbsite Amorphous AI(OH)3 Source reference 6...A1203Si(OH)4 + 6H + ~ 2A13+ + SiO 2 + 5 H z O for imogolite gives apparent solubility relationships close...interlayered vermiculite feldspars, allophane or imogolite are far more likely to be the source of most aluminium |  | | Journal (article/letter/editorial) | | same trends with altitude could be observed. Imogolite-type materials (ITM) are generally of minor importance...clay. âImogolite-type materialâ (ITM), henceforth meaning the sum of imogolite and proto-imogolite allophane...Parfitt and Henmi (1982), i.e. as allophane + imogolite% = Si(oxalate)%67.1. The main mineralogy of the...extractable fraction oxalate extractable fraction ITM: imogolite-type material exceeded. Allophanic precipitates...to be translocated into the B horizon as proto-imogolite sol. Incongruent weathering within the B horizons |  | | Report (chapter) | | Liverpool L69 3BX, UK 2 Centre for Volcanic Studies, University o f Luton, Luton LU1 3JU, UK Abstract: Whereas...primarily the hydrous aluminosilicates, allophane and imogolite; the iron hydroxide, ferrihydrite and opaline...favoured by different soil conditions: allophane, imogolite and ferrihydrite occur in soils of pH >5, whereas...amounts of Al-humus complexes, allophane and imogolite form, and appreciable amounts of halloysite (a...likelihood of transformation of allophane and imogolite to halloysite, kaolinite, gibbsite and 2 : 1 type |  | | Journal (article/letter/editorial) | | mica (McDaniels et al., 1995). Allophane and imogolite formation in podzols was described in detail by...ferruginous chlorite in a podzol from Argyllshire, Scotland. Geoderma, 17, 193 208. Bain, D.C. and Fraser...product in acid soils from upland catchments in Scotland. Clay Minerals, 25, 467 475. Bednarek, R., CharzynÌski...Russell, J.D. and Berrow, M.L. (1980) Imogolite and proto-imogolite allophane in spodic horizons: evidence...Podzolisation mechanism and the synthesis of imogolite in northern Scandinavia. Geoderma, 66, 167 184 |  | | Book | | Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, UK 50 Hampshire Street, 5th Floor, Cambridge, MA 02139...financial support of his PhD work. Germanium imogolite nanotubes were elaborated at LIONS/CEA, under...minerals, such as chrysotile, halloysite and imogolite (Bates et al., 1950a,b; Cradwick et al., 1972)...80% of the research papers on halloysite and imogolite applications have been published in the past 5...extend their practical applications. Halloysite, imogolite and chrysotile are typical examples of naturally |  | Egli, M., Mirabella, A., Sartori, G., Giaccai, D., Zanelli, R., Plötze, M. (2007) Effect of slope aspect on transformation of clay minerals in Alpine soils. Clay Minerals, 42 (3) 373-398 doi:10.1180/claymin.2007.042.3.09 | Journal (article/letter/editorial) | | fraction. âImogolite-type materialâ (ITM), which henceforth refers to the sum of imogolite and proto-imogolite...proto-imogolite allophane, was estimated (assuming that the Al/Si molar ratio to be close to 2.0) according...to Parfitt & Henmi (1982), i.e. as allophane + imogolite% = Si(oxalate)%67.1. Its presence was furthermore...south-facing S6, S7 and S8 soil profiles. The amount of imogolite-type material was furthermore quite low in all...all soil profiles (Table 3). Small amounts of imogolite-type materials (ITM) were observed in the lower |  | | Journal (article/letter/editorial) | | collected from a small upland catchment in northeast Scotland, Peatfold, Glenbuchat. The cores were subjected...for unfertilised upland catchments of north-east Scotland is that for ammonium- and nitrate-nitrogen. Low...typical upland or moorland catchment of north-east Scotland. Increased flow through or over surface organic...the Natural Environment Research Council and the UK Department of the Environment for financial support...geochemistry of a small upland catchment in N.E. Scotland, unpublished PhD Thesis, University of Aberdeen |  | Cuadros, Javier, Cesarano, Mara, Dubbin, William, Smith, Stuart W., Davey, Alexandra, Spiro, Baruch, Burton, Rodney G.O., Jungblut, Anne D. (2018) Slow weathering of a sandstone-derived Podzol (Falkland Islands) resulting in high content of a non-crystalline silicate. American Mineralogist, 103 (1) 109-124 doi:10.2138/am-2018-6230 | Journal (article/letter/editorial) | | smectite. The amorphous phase is not allophane or imogolite by any of the analyses carried out. The amorphous...in young volcanic soils, mainly as allophane, imogolite, and their precursors, where the abundant original...short-range ordered silicate phases (e.g., allophane, imogolite) (Wada 1989), Fe3+ oxides and oxy-hydroxides (e...have a significant component of allophane or imogolite, both of which are dissolved with the AO method...using Glentworth and Muir 1963) of a Podzol in Scotland, where the only apparent secondary phase was goethite |  | Joussein, E., Petit, S., Churchman, J., Theng, B., Righi, D., Delvaux, B. (2005) Halloysite clay minerals â a review. Clay Minerals, 40 (4) 383-426 doi:10.1180/0009855054040180 | Journal (article/letter/editorial) | | with rolling edge Weathered granite/gabbros, (Scotland) 48 Crumpled lamellar Weathered pumices (Japan)...near-IR reflectance presence of allophane and imogolite often asso- spectroscopy can differentiate between...Pain, 1984; Quantin, 1988; of both Al-rich (imogolite-like) allophane and SiĂ) rich (halloysite-like)...Ăż3. materials are dominated by allophane and imogolite (Parfitt et al., 1984; Parfitt & Wilson, 1985;...kaolinite via Fig. 8, indicates that halloysite and imogolite are dehydrated halloysite (de Souza Santos unstable |  | | Book | | 114 127 130 136 143 . Chapter 4 Allophane and Imogolite 4.1. Chemical Composition ......................It is considered that this material might be imogolite. Further, Shioiri began work on the electrokinetic...interesting shapes are observed in the case of imogolite and spherulitic halloysite (allophane-halloysite...poorly crystalline clay minerals. Allophane, imogolite, hisingerite, penwithite CLAYS AND CLAY MINERALS...Springfield (Faust and Murata, 1953). 7) Saponite from Scotland (Mackenzie, 1957). *At 300âC. 12.00 10.32 98 |
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