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Nature, genesis and industrial properties of the kaolin from Masirah Island, Oman

Published online by Cambridge University Press:  02 January 2018

Bernhard Pracejus ,
Iftikhar Ahmed Abbasi ,
Salah Al-Khirbash  and
Mohammad Al-Aamri
Bernhard Pracejus
Affiliation:
Earth Science Department, College of Science, Sultan Qaboos University, Muscat, Oman
Iftikhar Ahmed Abbasi*
Affiliation:
Earth Science Department, College of Science, Sultan Qaboos University, Muscat, Oman
Salah Al-Khirbash
Affiliation:
Earth Science Department, College of Science, Sultan Qaboos University, Muscat, Oman
Mohammad Al-Aamri
Affiliation:
Public Authority for Craft Industry, Muscat, Oman
*
*E-mail: iftikhar@squ.edu.om
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Abstract

Kaolin deposits >10 m thick overlie unconformably a Mesozoic ophiolite sequence at Jabal Humr, Masirah Island, Oman. The clay's mineralogical and chemical composition, plasticity and moisture content were measured to determine its genesis and suitability for commercial usage. The clay-rich raw material contains 76–94% kaolinite and varying amounts of quartz (micro sheets coating kaolinite) and calcite as well as secondary sulfates. The mode of occurrence, an associated shallow-marine iron oolite/pisolite unit, various secondary minerals which can only form in a gossan environment (oxidation zone of a much older sulfide deposit), and minerals such as gypsum that are highly unstable within a laterite, have led to the conclusion that the Jabal Humr kaolinite deposit cannot have the lateritic origin that has been suggested previously. Rather, it must have formed in a coastal marine environment with a subsequent strong geochemical overprint from the underlying gossan environment, after being enveloped by Tertiary carbonates. A high plasticity and its light colour after firing indicate that this material is suitable for industrial use, especially in pottery. Occasional high contents of up to ∼25% extremely fine-grained quartz (sheet-like, <50 nm thick) reduce the need for quartz addition during the processing for ceramic materials; such natural kaolinite-quartz mixtures already produce a suitable blend of materials. The possible occurrence of spalling during or after firing, caused by the sporadic presence of accessory calcite, can be avoided by by further addition of quartz which leads to the formation of calcium silicate.

Keywords

kaoliniteclayophioliteMasirah IslandOman
Type
Research Article
Information
Clay Minerals , Volume 52 , Issue 3 , September 2017 , pp. 275 - 297
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 2017

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References

Abbotts, I.L. (1978) High-potassium granites in the Masirah ophiolite of Oman. Geological Magazine, 115, 415–425.CrossRefGoogle Scholar
Ahmed, I., Al-Khirbash, S., Pracejus, B., El-Shafey, S., Al-Busaidi, A., Al-Aamri, M., Al-Hinai, R. & Cork, L. (2014) Exploration and prospection of white clay (kaolinite) deposits in the Sultanate of Oman and its potential for industrial use for the Bahla pottery factory. Final report to the Public Authority for Craft Industry and the Industrial Innovation Center, Sultan Qaboos University, Muscat. 106 pp.Google Scholar
Al-Mahrouqi, K., Al-Kindi, O. & Pracejus, B. (2015) Gossan alteration products – key to environmentally friendly mine remediation? Pp. 88–90 in: Proceedings of the The Seventh Environmental Symposium of German-Arab Scientific Forum for Environmental Studies. Sultan Qaboos University, Muscat, Oman, Sultan Qaboos University.Google Scholar
Allegretta, I., Eramo, G., Pinto, D. & Kilikoglou, V. (2015) Strength of kaolinite-based ceramics: Comparison between limestone- and quartz-tempered bodies. Applied Clay Science, 116–117, 220–230.CrossRefGoogle Scholar
Amajor, L.C. (1987) Major and trace elements geochemistry of Albian and Turonian shales from the southern Benue Trough, Nigeria. Journal of African Earth Science, 6, 633–461.Google Scholar
Aparicio, P. & Galán, E. (1999) Mineralogical interference on kaolinite crystallinity index measurements. Clays and Clay Minerals, 47, 12–27.CrossRefGoogle Scholar
Bąbel, M. & Schreiber, B.C. (2014) Geochemistry of evaporites and evolution of seawater. Treatise on Geochemistry (2nd Edition): Sediments. Diagenesis and Sedimentary Rocks, 9, 483–560.Google Scholar
Bain, J.A. & Highley, D.E. (1979) Regional appraisal of clay resources – a challenge to the clay mineralogist. Developments in Sedimentology, 27, 437–446.CrossRefGoogle Scholar
Balan, E., Fritsch, E., Allard, T. & Calas, G. (2007) Inheritance vs. neoformation of kaolinite during lateritic soil formation: A case study in the middle Amazon basin. Clays and Clay Minerals, 55, 253–259.CrossRefGoogle Scholar
Béchennec, F., De Métour, J., Platel, J.P. & Roger, J. (1993) Geological Map of the Sultanate of Oman (GIS Version, 1:250,000). Ministry of Petroleum and Minerals, Directorate General of Minerals, Muscat.Google Scholar
Bourman, R.P. & Ollier, C.D. (2002) A critique of the Schellmann definition and classification of laterite. Catena, 47, 117–131.CrossRefGoogle Scholar
Chavéz, W.X. Jr (2000) Supergene oxidation of copper deposits: Zoning and distribution copper oxide minerals. SEG Newsletter, 41, 9–21.Google Scholar
Elsass, F., Środoń, J. & Robert, M. (1997) Illite-smectite alteration and accompanying reactions in a Pennsylvanian underclay studied by TEM. Clays and Clay Minerals, 45, 390–403.CrossRefGoogle Scholar
Essalhi, M., Sizaret, S., Barbanson, L., Chen, Y., Lagroix, F., Demory, F., Nieto, J.M., Sáez, R. & Capitán, M.A. (2011) A case study of the internal structures of gossans and weathering processes in the Iberian pyrite belt using magnetic fabrics and paleomagnetic dating. Mineralium Deposita, 46, 981–999.CrossRefGoogle Scholar
Evans, A.M. (1993) Ore Geology and Industrial Minerals - an Introduction. 3rd Edition. Blackwell Science Ltd, Oxford, UK, 389 pp.Google Scholar
Fatahi, B., Khabbaz, H. & Basack, S. (2011) Effects of salinity and sand content on liquid limit and hydraulic conductivity. Australian Geomechanics, 46, 67–76.Google Scholar
Galley, A.G., Hannington, M.D. & Jonasson, I.R. (2007) Volcanogenic massive sulphide deposits. Pp. 141–161 in: Mineral Deposits of Canada: A Synthesis of Major Deposit Types, District Metallogeny, the Evolution of Geological Provinces, and Exploration Methods, vol. 5 (Goodfellow, W. D., editor). Geological Association of Canada, Mineral Deposits Devision, Special publication St. Johns, Canada.Google Scholar
Gaudin, A., Dehouck, E. & Mangold, N. (2011) Evidence for weathering on early Mars from a comparison with terrestrial weathering profiles. Icarus, 216, 257–268.CrossRefGoogle Scholar
Gnos, E. & Perrin, M. (1996) Formation and evolution of the Masirah ophiolite constrained by paleomagnetic study of volcanic rocks. Tectonophysics, 253, 53–64.CrossRefGoogle Scholar
Greenberger, R.N., Mustard, J.F., Kumar, P.S., Dyar, M.D., Breves, E.A. & Sklute, E.C. (2012) Low temperature aqueous alteration of basalt: Mineral assemblages of deccan basalts and implications for Mars. Journal of Geophysical Research, 117, 21.CrossRefGoogle Scholar
Gunnarsson, I. & Arnórsson, S. (2000) Amorphous silica solubility and the thermodynamic properties of H4SiO°4 in the range of 0° to 350°C at Psat . Geochimica et Cosmochimica Acta, 64, 2295–2307.CrossRefGoogle Scholar
Hannington, M.D., Galley, A.G., Herzig, P.M. & Petersen, S. (1998) Comparison of the TAG mound and stockwork complex with Cyprus-type massive sulfide deposits. Proceedings of the Ocean Drilling Program, Scientific Results, Leg 158, 389–415.Google Scholar
Harnois, L. (1988) The CIW index: A new chemical index of weathering. Sedimentary Geology, 55, 319–322.CrossRefGoogle Scholar
Hill, I.G., Worden, R.H. & Meighan, I.G. (2000) Geochemical evolution of a palaeolaterite: The interbasaltic formation, Northern Ireland. Chemical Geology, 166, 65–84.CrossRefGoogle Scholar
Hinckley, D.N. (1963) Variability in “crystallinity” values among the kaolin deposits of the coastal plain of Georgia and South Carolina. Clays and Clay Minerals, 11, 229–235.CrossRefGoogle Scholar
Immenhauser, A. (1996) Cretaceous sedimentary rocks on the Masirah ophiolite (Sultanate of Oman): Evidence for an unusual bathymetric history. Journal of the Geological Society London, 153, 539–551.CrossRefGoogle Scholar
Joussein, E., Petit, S., Churchman, J., Theng, B., Righi, D. & Delvaux, B. (2005) Halloysite clay minerals – a review. Clay Minerals, 40, 383–426.CrossRefGoogle Scholar
Keller, W.D. (1978) Kaolinization of feldspar as displayed in scanning electron micrographs. Geology, 6, 184–188.2.0.CO;2>CrossRefGoogle Scholar
Kilikoglou, V. & Vekinis, G. (1998) Finite element analysis for failure prediction of archaeological pottery. In: Proceedings of the 31st International Symposium on Archaeometry, Budapest, Hungary.Google Scholar
Kilikoglou, V., Vekinis, G. & Maniatis, Y. (1995) Toughening of ceramic earthenwares by quartz inclusions: An ancient art revisited. Acta Metallurgica et Materialia, 43, 59–65.CrossRefGoogle Scholar
Loucks, R.R. & Ballard, J.R. (2003) Petrochemical characteristics, petrogenesis and tectonic habits of gold-ore-forming arc magmas. Unpublished report for industry-sponsored research project: Predictive Guides to Copper and Gold Mineralization at Circum-Pacific Convergent Plate Margins, 69 pp.Google Scholar
Lynne, B.Y. & Campbell, K.A. (2004) Morphologic and mineralogic transitions from opal-A to opal-CT in low-temperature siliceous sinter diagenesis, Taupo volcanic zone, New Zealand. Journal of Sedimentary Research, 74, 561–579.CrossRefGoogle Scholar
Malengreau, N. & Sposito, G. (1997) Short-time dissolution mechanisms of kaolinite tropical soils. Geochimica et Cosmochimica Acta, 61, 4297–4307.CrossRefGoogle Scholar
Marquer, D., Peter, T.J. & Gnos, E. (1995) A new structural interpretation for the emplacement of the Masirah ophiolites (Oman): A main Paleocene intra-oceanic thrust. Geodinamica Acta, 8, 13–19.CrossRefGoogle Scholar
Marquer, D., Mercolli, I. & Peters, T. (1998) Early cretaceous intra-oceanic rifting in the proto-Indian ocean recorded in the Masirah ophiolite, Sultanate of Oman. Tectonophysics, 292, 1–16.CrossRefGoogle Scholar
McAdam, A.C., Zolotov, M.Y., Mironenko, M.V. & Sharp, T.G. (2008) Formation of silica by low-temperature acid alteration of Martian rocks: Physical-chemical constraints. Journal of Geophysical Research, Planets, 113, 8.Google Scholar
McCollom, T.M., Robbins, M., Moskowitz, B., Berquó, T.S., Jöns, N. & Hynek, B.M. (2013) Experimental study of acid-sulfate alteration of basalt and implications for sulfate deposits on Mars. Journal of Geophysical Research: Planets, 118, 577–614.Google Scholar
McFarlane, M.J. & Bowden, D.J. (1992) Mobilization of aluminium in the weathering profiles of the African surface in Malawi. Earth Surface Processes and Landforms, 17, 789–805.CrossRefGoogle Scholar
Menkveld-Gfeller, U. & Decrouez, D. (2004) The Paleogene of Masirah island (Sultanate of Oman). Neues Jahrbuch der Geologie Paläontologie, 234, 311–333.CrossRefGoogle Scholar
Michailidis, K., Tsirambides, A., & Tsamantouridis, P. (1993) Kaolin weathering crusts on gabbroic rocks at Griva, Macedonia, Greece. Applied Clay Science, 8, 19–36.CrossRefGoogle Scholar
Montes, C.R., Melfi, A.J., Carvalho, A., Vieira-Coelho, A.C. & Formoso, M.L.L. (2002) Genesis, mineralogy and geochemistry of kaolin deposits of the Jari river, Amapá state, Brazil. Clays and Clay Minerals, 50, 494–503.CrossRefGoogle Scholar
Moore, F. (1965) Rheology of Ceramic Systems. Pp. 51–57. McLaren and Sons, London.Google Scholar
Nesbitt, H.W. & Wilson, R.E. (1992) Recent chemical weathering of basalts. American Journal of Science, 292, 740–777.CrossRefGoogle Scholar
Orton, C. (2009) Four pots good, two pots bad: Exploring the limits of quantification in the study of archaeological ceramics. Pp. 65–73 in: Proceedings of the New Perspectives on Ancient Pottery. University of Amsterdam, The Netherlands.Google Scholar
Panteleyev, A. & Koyanagi, V.M. (1993) Advanced argillic alteration in bonanza volcanic rocks, northern Vancouver Island – Transitions between porphyry copper and epithermal environments. Geological Fieldwork (1992), 1, 287–293.Google Scholar
Parker, A. (1970) An index of weathering for silicate rocks. Geological Magazine, 107, 501–504.CrossRefGoogle Scholar
Peters, T.J. & Mercolli, I. (1998) Extremely thin oceanic crust in the proto-Indian ocean: Evidence from the Masirah ophiolite, Sultanate of Oman. Journal of Geophysical Research, 103, 677–689.CrossRefGoogle Scholar
Peters, T.J., Immenhauser, A., Mercolli, I. & Meyer, J. (1995) Geological map of Masirah North and Masirah South with Explanatory Notes. Sheet K768, Directorate General of Minerals, Oman Ministry of Petroleum and Minerals.Google Scholar
Pracejus, B. (1990) Groote Eylandt manganese norm – New application of mineral normalization techniques on supergene alteration products. Pp. 3–16 in: Sediment-hosted Mineral Deposits, Special Publications of the International Association of Sedimentology, vol. 11 (Parnell, J., Lianjun, & Changming, C., editors). Blackwell, Oxford, London, Edinburgh, Boston.Google Scholar
Pracejus, B., Bolton, B.R. & Frakes, L.A. (1988) Nature and development of supergene manganese deposits, Groote Eylandt, Northern Territory, Australia. Ore Geology Reviews, 4, 71–99.CrossRefGoogle Scholar
Prasad, M.S., Reid, K.J. & Murray, H.H. (1991) Kaolin: Processing, properties and applications. Applied Clay Science, 6, 87–119.CrossRefGoogle Scholar
Price, J.R. & Velbel, M.A. (2003) Chemical weathering indices applied to weathering profiles developed on heterogeneous felsic metamorphic parent rocks. Chemical Geology, 202, 397–416.CrossRefGoogle Scholar
Rice, P.M. (1987) Pottery Analysis. 2nd Edition. University of Chicago Press, Chicago, Illinois, USA, 592 pp.Google Scholar
Robertson, I.D. & Eggleton, R.A. (1991) Weathering of granitic muscovite to kaolinite and halloysite and of plagioclase-derived kaolinite to halloysite. Clays and Clay Minerals, 39, 113–126.CrossRefGoogle Scholar
Rye, O.S. (1976) Keeping your temper under control: Materials and the manufacture of Papuan pottery. Archaeology and Physical Anthropology in Oceania, 11, 106–137.Google Scholar
Sass, B.M., Rosenberg, P.E. & Kittrick, J.A. (1987) The stability of illite/smectite during diagenesis: An experimental study. Geochimica et Cosmochimica Acta, 51, 2103–2115.CrossRefGoogle Scholar
Schellmann, W. (1986) A new definition of laterite. Geological Survey of India Memoirs, 120.Google Scholar
Sequeira Braga, M.A., Paquet, H. & Begonha, A. (2002) Weathering of granites in a temperate climate (NW Portugal): Granitic saprolites and arenization. Catena, 49, 41–56.CrossRefGoogle Scholar
Siddiqui, M.A., Ahmed, Z. & Saleemi, A.A. (2005) Evaluation of Swat kaolin deposits of Pakistan for industrial uses. Applied Clay Science, 29, 55–72.CrossRefGoogle Scholar
Smewing, J.D., Abbotts, I.L., Dunne, L.A. & Rex, D.C. (1991) Formation and emplacement ages of the Masirah ophiolite, Sultanate of Oman. Geology, 19, 453–456.2.3.CO;2>CrossRefGoogle Scholar
Taylor, S.R. & McLennan, S.M. (1985) The Continental Crust: Its Composition and Evolution. Blackwell, Malden, Massachusetts, USA, 132 pp.Google Scholar
Taylor, G., Eggleton, R.A., Holzhauer, C.C., Maconachie, L.A., Gordon, M., Brown, M.C. & McQueen, K.G. (1992) Cool climate lateritic and bauxitic weathering. Journal of Geology, 100, 669–677.CrossRefGoogle Scholar