Abstract
In the Deccan region of western India ferricrete duricrusts, usually described as laterites, cap some basalt summits east of the Western Ghats escarpment, basalts of the low-lying Konkan Plain to its west, as well as some sizeable isolated basalt plateaus rising from the Plain. The duricrusts are iron-cemented saprolite with vermiform hollows, but apart from that have little in common with the common descriptions of laterite. The classical laterite profile is not present. In particular there are no pisolitic concretions, no or minimal development of concretionary crust, and the pallid zone, commonly assumed to be typical of laterites, is absent. A relatively thin, non-indurated saprolite usually lies between the duricrust and fresh basalt. The duricrust resembles the classical laterite of Angadippuram in Kerala (southwestern India), but is much harder. The High Deccan duricrusts capping the basalt summits in the Western Ghats have been interpreted as residuals from a continuous (but now largely destroyed) laterite blanket that represents in situ transformation of the uppermost lavas, and thereby as marking the original top of the lava pile. But the unusual pattern of the duricrusts on the map and other evidence suggest instead that the duricrusts formed along a palaeoriver system, and are now in inverted relief. The two interpretations lead to different tectonic histories. Duricrust formation involved lateral material input besides vertical elemental exchange. We may have reached the stage when the very concepts of laterite and lateritization are hindering progress in regolith research.
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References
Bondre N R, Duraiswami R A and Dole G 2004 Morphology and emplacement of flows from the Deccan volcanic province, India; Bull. Volcanol. 66 29–45.
Borger H and Widdowson M W 2001 Indian laterites, and lateritious residues of southern Germany: A petrographic, mineralogical, and geochemical comparison; Z. Geomorph. 45 177–200.
Bourman R P and Ollier C D 2001 A critique of the Schellmann definition and classification of ‘laterite’; Catena 47 117–131.
Buchanan F 1807 A Journey from Madras through the Countries of Mysore, Kanara and Malabar (3 vols.), East India Co., London.
Chan R A, Ollier C D and Gibson D L 1988 Kalgoorlie 1:1,000,000 Sheet SH-51, Western Australia Regolith Terrain Data; Bur. Min. Res. Geol. Geophys. Rec. 1988/3.
Chorley R J, Schumm S A and Sugden D E 1984 Geomorphology, Methuen, London.
Daly B, Twidale C R and Milnes A R 1974 The age of the lateritized summit surface on Kangaroo Island and adjacent areas of South Australia; J. Geol. Soc. Austr. 21 387–392.
Dubois G B and Jeffrey P G 1955 The composition and origins of the laterites of the Entebbe Peninsula, Uganda Protectorate; Col. Geol. Min. Res. 5 387–408.
Duraiswami R A, Bondre N R and Managave S 2008 Morphology of rubbly pahoehoe (simple) flows from the Deccan volcanic province: Implications for style of emplacement; J. Volcanol. Geotherm. Res., in press.
Elzien S M 1992 Genesis of red beds from the Khanapur Plateau, Maharashtra, India; Ph.D. Dissertation, Univ. Pune, India.
Folster H 1964 Morphogenese der sudsudanesischen Pediplaine; Z. Geomorph. 8 393–423.
Gunnell Y and Radhakrishna B P (eds) 2001 Sahyadri: The great escarpment of the Indian subcontinent: Bangalore; Geol. Soc. India Memoir 47(1–2) 1054 p.
Jutson J T 1914 An outline of the physiographical geology of Western Australia; Bull. West. Aust. Geol. Surv. 61.
Kale V S 2000 Cenozoic geomorphic history of the western Deccan Trap terrain, India; In: Penrose Deccan 2000: Field Excursion Guide to the Western Deccan Basalt Province (eds) Subbarao K V, Bodas M S, Khadri S F R and Beane J E, 57–77. Geol. Soc. Ind. + Geol. Soc. Am.
Kale V S and Shejwalkar N 2007 Western Ghat escarpment evolution in the Deccan basalt province: Geomorphic observations based on DEM analysis; J. Geol. Soc. India 70 459–473.
Kapadia H 2003 Trek the Sahyadris; 5th edn. (New Delhi: Indus Publ. Co.) 176 pp.
Kisakürek B, Widdowson M and James R H 2004 Behaviour of Li isotopes during continental weathering: The Bidar laterite profile, India; Chem. Geol. 212 27–44.
Lamplugh G W 1902 Calcrete; Geol. Mag. 9 575.
MacPhail M K and Stone M S 2004 Age and palaeoenvironmental constraints on the genesis of the Yandi channel iron deposits, Marillana Formation, Pilbara, northwestern Australia; Austr. J. Earth Sci. 51 497–520.
Maignien R 1959 Soil cuirasses in tropical West Africa; Sols Afr. 4 4–21.
Maignien R 1966 Review of Research on Laterites; UNESCO, Paris.
Millot G 1970 Geology of Clays; Masson, Paris.
Mishra S, Deo S and Rajaguru S N 2007 Some observations on laterites developed on Deccan Trap: implications for post-Deccan Trap denudational history; J. Geol. Soc. India 70 521–525.
Ollier C D 1959 A two-cycle theory of tropical pedology; J. Soil Sci. 10 137–148.
Ollier C D 1988 Volcanoes; Blackwell, 228 p.
Ollier C D 1991 Laterite profiles, ferricrete and landscape evolution; Z. Geomorph., N.F. 35 165–173.
Ollier C D 1995 New concepts of laterite formation; In: Quaternary Environments and Geoarchaeology in India: Essays in honour of Professor S N Rajaguru (eds) Wadia S, Korisettar R and Kale V S; Geol. Soc. India Memoir 32 309–323.
Ollier C D 2004 The evolution of mountains on passive continental margins; In: Mountain Geomorphology (eds) Owens P N and Slaymaker O (London: Edward Arnold) pp. 59–88.
Ollier C D and Galloway R W 1990 The laterite profile, ferricrete and unconformity; Catena 17 97–109.
Ollier C D and Pain C F 1996 Regolith, Soils and Landforms (Chichester: John Wiley & Sons) 316 p.
Ollier C D and Pain C F 1997 Equating the basal unconformity with the palaeoplain: A model for passive margins; Geomorphology 19 1–15.
Ollier C D and Powar K B 1985 The Western Ghats and the morphotectonics of peninsular India; Zeit. Geomorph. Suppl. N.F. 54 57–69.
Ollier C D and Rajaguru S N 1989 Laterite of Kerala (India); Geogr. Fis. Din. Quat. 12 27–33.
Pain C F and Ollier C D 1992 Ferricrete in Cape York Peninsula, North Queensland; BMR J. Austr. Geol. Geophys. 13 207–212.
Pain C F and Ollier C D 1995 Inversion of relief — a component of landscape evolution; Geomorphology 12 151–165.
Paton T R and Williams M A J 1972 The concept of laterite; Annal. Assoc. Amer. Geogr. 62 42–56.
Raja Rao C S 1984 The geological controls for formation of laterite in western Maharashtra. In: Proc. Symp. on Deccan Trap and Bauxite (eds) Prasad B and Manjrekar B S, Geol. Surv. India Spec. Publ. 14 262–265.
Rhodenburg H 1969 Slope pedimentation and climatic change as principal factors of planation and scarp development in tropical Africa; Giessener Geogr. Schr. 20 57–152.
Schaetzl R J and Anderson S 2005 Soils: genesis and geomorphology; Cambridge Univ. Press, Cambridge.
Schellmann W 1981 Considerations on the definition and classification of laterites; Proc. Int. Sem. on Lateritisation Processes, Trivandrum, India, 1–10. Balkema, Rotterdam.
Schwarz T 1994 Ferricrete formation and relief inversion: An example from central Sudan; Catena 21 257–268.
Sheth H C 1998 A reappraisal of the coastal Panvel flexure, Deccan Traps, as a listric-fault-controlled reverse drag structure; Tectonophys. 294 143–149.
Sheth H C 2006 The emplacement of pahoehoe lavas on Kilauea and in the Deccan Traps; J. Earth Syst. Sci. 115 615–629.
Sheth H C 2007 Plume-related regional pre-volcanic uplift in the Deccan Traps: Absence of evidence, evidence of absence; In: Plates, Plumes, and Planetary Processes (eds) Foulger G R and Jurdy D M, Geol. Soc. Am. Spec. Pap. 430 785–813.
Taylor G and Eggleton R A 2001 Regolith Geology and Geomorphology (Chichester: John Wiley & Sons) 375p.
Thomas M F 1974 Tropical Geomorphology; MacMillan, London.
Trendall A F 1962 The formation of ‘apparent peneplains’ by a process of combined lateritization and surface wash; Z. Geomorph. 6 183–197.
Twidale C R 2004 River patterns and their meaning; Earth-Sci. Rev. 67 159–218.
Walker G P L 1969 Some observations and interpretations of the Deccan Traps; Unpubl. Report, Univ. Saugar, India; reprinted in: Deccan Volcanic Province (ed.) Subbarao K V, Geol. Soc. India Memoir 43(2) 367–395.
Walther J 1915 Laterit in Westaustralien; Z. dt. Geol. Ges. 67B 113–140.
Widdowson M 1997 Tertiary palaeosurfaces of the SW Deccan, Western India: implication for passive margin uplift. In: Palaeosurfaces: Recognition, Reconstruction and Palaeoenvironmental Interpretation (ed.) Widdowson M, Geol. Soc. Spec. Publ. 120 221–248.
Widdowson M 2004 Ferricrete; In: Encyclopedia of Geomorphology (ed.) Goudie A, Routledge.
Widdowson M and Cox K G 1996 Uplift and erosional history of the Deccan Traps, India: Evidence from laterites and drainage patterns of the Western Ghats and Konkan coast; Earth Planet. Sci. Lett. 137 57–69.
Widdowson M and Gunnell Y 1999 Lateritization, geomorphology and geodynamics of a passive continental margin: The Konkan and Kanara coastal lowlands of western peninsular India; Spec. Publ. Int. Assoc. Sediment. 27 245–274.
Wimpenny J, Gannoun A, Burton K W, Widdowson M, James R H and Gislason S R 2007 Rhenium and osmium isotope and elemental behaviour accompanying laterite formation in the Deccan region of India; Earth Planet. Sci. Lett. 261 239–258.
Woolnough W G 1927 The duricrust of Australia; J. Proc. R. Soc. N. S.W. 61 25–53.
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Ollier, C.D., Sheth, H.C. The High Deccan duricrusts of India and their significance for the ‘laterite’ issue. J Earth Syst Sci 117, 537–551 (2008). https://doi.org/10.1007/s12040-008-0051-9
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DOI: https://doi.org/10.1007/s12040-008-0051-9