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Charles Rowland Twidale
Department of Geology and Geophysics, School of Physical and Earth Sciences, University of Adelaide
Juan Ramón Vidal Romaní
Instituto Universitario de Xeoloxía, Universidade da Coruña. ESCI, Campus de Elviña. 15071, A Coruña, Spain
Vol. 42 (2020), Articles, pages 29-52
Submitted: Dec 15, 2020 Accepted: Dec 17, 2020 Published: Dec 28, 2020
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Many of the so-called corestones have been developed from rocky blocks that have been apparently affected by subsurface physicochemical weathering that results in lamination, granulation, and eventually a puggy or stiff clay. The truth is that weathering takes advantage of a previous deformation structure and does not create it by weathering.

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Ackermann, E. 1962. Bussersteine- Zeugen vorzeitlicher Grundwasserschwankungen. Zeitschrift für Geomorphologie 6, 148-182.

Allen, S.R., Simpson, C.J., Mcphie, J., Daly, S.J. 2003. Stratigraphy, distribution and geochemistry of widespread felsic volcanic units in the Mesoproterozoic Gawler Range Volcanics, South Australia. Australian Journal of Earth Sciences 50, 97-112.

Beche H.T. de la 1839. Report on the Geology of Cornwall, Devon and West Somerset (Geological Survey of England and Wales). Longman, Orme, Brown, Green and Longmans, London, 648 pp.

Beche, H.T. de la. 1853. The Geological Observer. Longmans, Brown, Green and Longmans, London, 846 pp.

Belperio, A.P. 1995. Quaternary. Introduction. In: Drexel, J.F., Preiss, W.V. (Eds.), The geology of South Australia. Volume 2. The Phanerozoic. Geological Survey of South Australia Bulletin 54, 222-224.

Birot P. 1950. Notes sur le probleme de la désagrégation d es roches cristallines. Revue de Géomorphologie Dynamique 1, 271-276.

Büdel, J. 1957. Die "doppelten Einebnungsflachen" in den feuchten Tropen. Zeitschrift für Geomorphologie 1 , 201-208.

Cook, P.J., Colwell, J.B., Firman, J.B., Lindsay, J.M., Schwebel, D.A., Von Der Borch, C.C. 1977. The late Cainozoic sequence of southeast South Australia and Pleistocene sea­ level changes. Bureau of Mineral Resources Journal of Australian Geology & Geophysics 2, 81-88.

Duffaut, P. 1957. Sur la genese des 'boules' de certains granites. Comptes Rendus et Sommaire. Bulletin. Societe Géologique de France 7, 139-141.

Eggler D.H., Larsen E.E., Bradley W.C. 1969. Granites, grusses and the Sherman erosion surface, southern Laramie Range, Colorado-Wyoming. American Journal of Science 267, 510-522.

Hassenfratz, J-H. 1791. Sur l'arrangement de plusieurs gros blocs de différentes pierres que l'on observe dans les montagnes. Annales de Chimie 11, 95-107.

Hutton, J. 1788. Theory of the Earth; or an investigation of the laws observable in the composition, dissolution and restoration of land upon the globe. Transactions of the Royal Society of Edinburgh 1, 209-304.

Hutton, J.T., Lindsay D.S., Twidale C.R. 1977. The weathering of norite at Black Hill, South Australia. Journal of the Geological Society of Australia 24, 37-50.

Jones, T.R. 1859. Notes on sorne granite tors. The Geologist, 2, 301-312.

Kingsmill, T.W. 1862. Notes on the geology of the east coast of China. Journal of the Royal Geological Society of Ireland 10, 1-6.

Larsen ES. 1948. Batholith and associated rocks of Corona, Elsinore and San Luis Rey quadrangles, southern California. Geological Society of America Memoir 29, 113-119.

Leith K., Moore J.R., Amann F., Loew S. 2014. In situ stress control on microcrack generation and macroscopic fracture in exhuming bedrock. Journal of Geophysical Research: solid Earth 119, 12-22.

Logan J.R. 1849. The rocks of Pulo Ubin, with sorne remarks on the formation and structure of hypogene rocks and on the metamorphic theory. Verhandlungen Genootschap van Kunsten en Wetenschappen (Batavia) 22, 3-43.

Logan, J.R. 1851. Notes on the geology of the straits of Singapore. Quarterly Journal of the Geological Society of London 7, 310-344.

Loughnan, F.C. 1969. Chemical Weathering of the Silicate Minerals. Elsevier, New York, 154 pp.

Mabbutt, J.A. 1961. 'Basal surface' or 'weathering front'. Proceedings of the Geologists' Association of London 72, 357-358.

Macculloch, J. 1814. On the granite tors of Cornwall. Transactions of the Geological Society 2, 66-78.

Milnes A.R., Ludbrook N.H. 1986. Provenance of microfossils in aeolian calcarenites and calcretes in southern South Australia. Australian Journal of Earth Sciences 33, 145-159.

Nabarro, F.R.N. 1967. Theory of Crystal Dislocations. Clarendon Press, Oxford, 821 pp.

Russell, G.A. 1935. Crystal growth and solution under local stress. American Mineralogist 20, 733-737.

Scrivenor, J.B. 1913. Geology of Malaya. Quarterly Journal of the Geological Society of London 69, 343-369.

Turner, F.J., Verhoogen, J. 1960. Igneous and Metamorphic Petrology. McGraw-Hill, New York, 694 pp.

Twidale, C.R. 1971. Structural Landforms. Australian National University Press, Canberra, 247 pp.

Twidale, C.R. 1986. Granite landform evolution: factors and :mplications. Geologische Rundschau 75, 769-779.

Twidale, C.R. 1993. The research frontier and beyond: granitic terrains, pp. 187-223, in J.D. Vitek & J.R. Giardino, (editors) Special Issue, Geomorphology: The Research Frontier and Beyond 7 (1-3). Proceedings of the 24th Binghamton Symposium in Geomorphology, 25 August 1993. Elsevier, Amsterdam, 265 pp.

Twidale, C.R., Bourne, J.A. 1976. The shaping and interpretation oflarge residual granite boulders. Journal of the Geological Society of Australia 23, 371-381.

Twidale C.R., Campbell E.M. 1984. Murphy Haystacks, Eyre Peninsula, South Australia. Transactions of the Royal Society of South Australia 108 (3), 175-183.

Twidale C.R., Campbell E.M., Bourne J.A. 2020. Evolution of an ancient cratonic upland, the Gawler Ranges of inland South Australia, Géomorphologie: relief, processus, environnement, 26 (1), 35-54.

Wilson, C.C. 1991. Geology of the Quaternary Bridgewater Formation of southwest and central South Australia [Ph.D. thesis]: Adelaide, Flinders University of South Australia. 341 pp.