Abstract
The Batu Feringgi area (N coast, Penang Island), with a high concentration of beach hotels, is critical to the tourist economy of Malaysia. Three large imbricated granite boulders were discovered on the NE end of the beach, at 5°28′51.77″N, 100°15′72″E. These boulders, dipping 45°–70° seaward, are shaped as tabular parallelepipeds with rounded corners, with maximum masses of 1.1–2.4 t, based on a density of 2.71 g/cm3. The boulder shapes were dictated by the presence of joints in the coastal outcrops, which represent an uplifted and exhumed tropically-weathered granite-tor landscape.
In order to produce imbrication of several boulders, the mode of transport has to be rolling/overturning, rather than by sliding or saltation. The hydrodynamic equations for the initiation of boulder transport used in this study are the modified Nott equations, from Nandasena et al. (Marine Geology 281:70–84, 2011). Calculations were made using slopes of 2°and 5°.
The results of the calculations indicate that the minimum velocities required to transport the boulders under free-rolling transport modes were 6.07 and 6.12 m/s for 2° and 5° slopes respectively. For joint-bounded boulders, the minimum velocities are 9.39 and 9.53 m/s for 2° and 5° slopes respectively. These velocities are higher than the maximum velocities experienced at this particular locality during the great 26 December 2004 Indian Ocean tsunami, the largest known tsunami in recorded history. Because this tsunami flooded the area but did not result in appreciable damage to infrastructure, it is concluded that the imbricated boulders on Batu Feringgi beach are the result of tropical storm activity in the past, rather than from recent or past tsunamis. The N coast of Penang is thus regarded as safe from the hazard of damaging tsunamis resulting from mega-earthquakes in the Sumatra-Andaman subduction zone, but the area is prone to tropical storm damage (with a return frequency of about 1 in 400 years), with wave velocities exceeding 6–9.5 m/s.
Keywords
- Imbricated boulders
- Penang island
- Malaysia
- Hydrodynamic calculations
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References
Ahmad F, Yahaya AS, Farooqi MA (2006) Characterization and geotechnical properties of Penang residual soils with emphasis on landslides. Am J Environ Sci 2(4):121–128
Anon (2011) Penang- landforms. http://www.geoscience-environment.com/es771/penang.htm
Azman AG (2000) The western belt granite of Peninsular Malaysia: some emergent problems on granite classification and its implication. Geosci J 4(4):283–293
Bignell JD, Snelling NJ (1977) Geochronology of Malayan granites. Overseas geology and mineral resources, vol 47. IGS, London
Bryant EA, Young RW, Price DM (1992) Evidence of tsunami sedimentation on the southeastern coast of Australia. J Geol 100:753–765
Chang CP, Liu C-H, Kuo H-C (2003) Typhoon Vamei: an equatorial tropical cyclone formation. Geophys Res Lett 30:1150. doi:10.1029/2002GL016365, 4 pp
Coch NK (1994) Geologic effects of hurricanes. Geomorphology 10:37–63
Colbourne FW (2005).Tsunami impact on the West Coast of Penang Island, Malaysia. Research Project Report, M.S. in Physical Sciences, Emporia State University, Emporia, Kansas, USA
Costa PJM, Andrade C, Freitas MC, Oliveira MA, da Silva CM, Omira R, Taborda R, Baptista MA, Dawson AG (2011) Boulder deposition during major tsunami events. Earth Surf Proc Land 36:2054–2068
Cox R, Zentner DB, Kirchner BJ, Cook MS (2012) Boulder ridges on the Aran Islands (Ireland): recent movements caused by storm waves, not tsunamis. J Geol 120:249–272
Eble M, Mungov G, Rabinovich A, Harris E ,Titov V (2012) Spatial and temporal characterization of the 11 March 2011 tsunami. Abstracts, AOGS-AGU (WPGM) Joint Assembly, 13–17 Aug 2012, Singapore, Abstract No. OS07-17-A029 (CD-ROM)
Etienne S, Paris R (2010) Boulder accumulations related to storms on the south coast of the Reykjanes Peninsula, Iceland. Geomorphology 114:55–70
Fadzli MN (2007) Development of design response spectra for Penang Island. M.Sc. thesis (unpublished), Universiti Sains Malaysia, Penang, Malaysia
Flather RA (2003) Storm surges. In: Holton JR et al (eds) Encyclopedia of atmospheric sciences. Academic, New York, pp 109–117
GDS (2011) ASTER GDS Web Site, Earth Remote Sensing Data Analysis Center. http://gds.aster.ersdac.jspacesystems.or.jp/gds_www2002/ index_e.html
Geological Survey of Malaysia (1992) Quaternary geological map of Penang, Seberang Prai and Kuala Kurau
Goto K, Okada K, Imamura F (2010a) Numerical analysis of boulder transport by the 2004 Indian Ocean tsunami at Pakarang Cape, Thailand. Mar Geol 268:97–105
Goto K, Kawana T, Imamura F (2010b) Historical and geological evidence of boulders deposited by tsunamis, southern Ryukyu Islands, Japan. Earth-Sci Rev 102:77–99
Hutchison CS (1977) Granite emplacement and tectonic subdivisions of Peninsular Malaysia. Geol Soc Malaysia Bull 9:187–207
Imamura F, Goto K, Ohkubo S (2008) A numerical model for the transport of a boulder by tsunami. J Geophys Res 113, C01008. doi:10.1029/2007JC004170
Jahromi BI (2009) Design of a tsunami barrier to the north of Penang Island. M. Eng. (Civil-Hydraulics and Hydrology) dissertation, Faculty of Civil Engineering, Universiti Teknologi Malaysia, 86 pp
Kennedy DM, Tannock KL, Crozier MJ, Rieser U (2007) Boulders of MIS 5 age deposited by a tsunami on the coast of Otago, New Zealand. Sediment Geol 200:222–231
Kwan TS, Krähenbühl R, Jager E (1992) Rb-Sr, K-Ar and fission track ages for granites from Penang Island, West Malaysia: an interpretation model for Rb-Sr whole-rock and for actual and experimental mica data. Contrib Mineral Petrol 111(4):527–542
Lateh H, Khan MMA, Jefriza (2011) Monitoring of shallow landslide in Tun Sardon 3.9 km, Pinang Island, Malaysia. Int J Phys Sci 6(12):2989–2999
Lau AYA, Etienne S, Terry J, Lee YS, Switzer S (2012) Preliminary findings on recent and ancient large-wave signatures in coastal reef-platform boulder fields from Makemo Atoll, French Polynesia. Abstracts, AOGS-AGU (WPGM) Joint Assembly, 13–17 Aug 2012, Singapore, Abstract No. OS14-A001 (CD-ROM)
Lay T, Kanamori H, Ammon CJ, Nettles M, Ward SN, Aster RC, Beck SL, Bilek SL, Brudzinski MR, Butler R, DeShon HR, Ekström G, Satake K, Sipkin S (2005) The Great Sumatra-Andaman earthquake of 26 December 2004. Science 308:1127–1133
Lee S, Pradhan B (2006) Probabilistic landslide hazards and risk mapping on Penang Island, Malaysia. J Earth Syst Sci 115(6):661–672
Liew TC, McCulloch MT (1985) Genesis of granitoid batholiths of Peninsular Malaysia and implications for models of crustal evolution: evidence from a Nd-Sr isotopic and U-Pb zircon study. Geochim Cosmochim Acta 49:587–600
Master S (2011) Transported megaboulders and the recognition of palaeotsunamites at Clifton Beach and surrounding areas, Cape Town, South Africa. Abstract Book, GeoSynthesis 2011 Conference and Exhibition, Integrating the Earth Sciences, 30 August–1 September 2011, Cape Town, pp 188–189
Mastronuzzi G, Sansò P (2000) Boulders transport by catastrophic waves along the Ionian coast of Apulia (Southern Italy). Mar Geol 170:93–103
McBride JL (1995) Tropical cyclone formation. In: Elsberry RL (ed) Global perspectives on tropical cyclones, World Meteorological Organization, Geneva, Report No. TCP-38. http://derecho. math.uwm.edu/classes/TropMet/GPTC/tcclimo.pdf
McCaffrey M (2008) Global frequency of magnitude 9 earthquakes. Geology 36(3):253–266
Mohammed A, Tkalich P, Vinod Kumar K, Vethamony P (2012) Hindcasting of wind waves generated by typhoon Vamei. Abstracts, AOGS-AGU (WPGM) Joint Assembly, 13–17 Aug 2012, Singapore, Abstract No. OS011-16-A006 (CD-ROM)
Nadim F, Kvalstad T, Guttormsen T (2005) Quantification of risks associated with seabed instability at Ormen Lange. Mar Pet Geol 22:311–318
Nanayama F, Shigeno K (2006) Inflow and outflow facies from the 1993 tsunami in southwest Hokkaido. Sed Geol 187:139–158
Nandasena NAK, Paris R, Tanaka N (2011) Reassessment of hydrodynamic equations: minimum flow velocities to initiate boulder transport by high energy events (storms, tsunamis). Mar Geol 281:70–84
Neetu S, Suresh I, Shankar R, Shankar D, Shenoi SSC, Shetye SR, Sundar D, Nagarajan B (2005) Comment on “The Great Sumatra-Andaman earthquake of 26 December 2004”. Science, 310, 1431, doi:10.1126/science.1118950
Nilfanion (2006) Global tropical cyclone tracks. http://en.wikipedia.org/wiki/File:Global_tropical_cyclone_tracks-edit2.jpg
Noormets R, Crook KAW, Felton EA (2004) Sedimentology of rocky shorelines: 3. Hydrodynamics of megaclast emplacement and transport on a shore platform, Oahu, Hawaii. Sedim Geol 172:41–65
Nott J (1997) Extremely high wave deposits inside the Great Barrier Reef, Australia: determining the cause- tsunami or tropical cyclone. Mar Geol 141:193–207
Nott J (2003) Waves, coastal boulders, and the importance of the pre-transport setting. Earth Planet Sci Lett 210:269–276
Okal EA (1988) Seismic parameters controlling far-field tsunami amplitudes: a review. Nat Hazards 1:67–96
Ong WS (1993) The geology and engineering geology of Pulau Pinang. Geological survey of Malaysia, Map report 7
Pradhan B, Saro L (2010) Delineation of landslide hazard areas on Penang Island, Malaysia, by using frequency ratio, logistic regression and artificial neural network models. Env Earth Sci 60(5):1037–1054
Regnauld H, Pirazzoli PA, Morvan G, Ruz M (2004) Impacts of storms and evolution of the coastline in western France. Mar Geol 210:325–337
Roy GD, Ismail AIM (2006) Numerical modelling of tsunami along the coastal belt of Penang using a polar coordinate shallow water model. Far East J Appl Math 23(3):241–261
Roy GD, Karim MF, Ismail AIM (2007) A nonlinear polar coordinate shallow water model for tsunami computation along North Sumatra and Penang Island. Cont Shelf Res 27:245–257
Scicchitano G, Monaco C, Torcorici L (2007) Large boulder deposits by tsunami waves along the Ionian coast of south-eastern Sicily (Italy). Mar Geol 238:75–91
Searle MP, Whitehouse MJ, Robb LJ, Ghani AA, Hutchison CS, Sone M, Ng SW-P, Roselee MH, Chung S-L, Oliver GJH (2012) Tectonic evolution of the Sibumasu-Indochina terrane collision zone in Thailand and Malaysia: constraints from new U-Pb zircon chronology of SE Asian tin granitoids. J Geol Soc, London 169(4):489–500
Seshachalam S, Karthikeyan A, Switzer A, Gouramanis C (2012) Sedimentological characteristics of tsunami and storm deposits: a modern analog from Southeast Indian coast. Abstracts, AOGS-AGU (WPGM) Joint Assembly, 13–17 Aug 2012, Singapore, Abstract No. OS14-A013 (CD-ROM)
Switzer AD, Burston JM (2010) Competing mechanisms for boulder deposition on the southeast Australian coast. Geomorphology 114:42–54
Tate RB, Tan DK, Ng TF (2008) Geological map of Peninsular Malaysia. In: Hutchison CS, Tan NK (eds) Geology of Peninsular Malaysia. Geological Society of Malaysia, Kuala Lumpur, 479 p
Voropayev SI, Testik FY, Fernando HJS, Boyer DL (2003) Morphodynamics and cobbles behaviour in and near the surf zone. Ocean Eng 30:1741–1764
Video 1. Tsunami 2004 at Tanjung Bungah Penang. http://www.youtube.com/watch?feature=player_detailpage&v=lkPw0WSgWqc
Video 2. Raw tsunami video Penang Beach Malaysia 2004. Uploaded by PubDom on 14 February 2007. http://www.youtube.com/watch?feature=player_detailpage&v=wJlDvzdB-zg
Video 3. Penang Tsunami. Uploaded by Adda58 (Jeff Addinsall) on 27 May 2008, shot at 2 PM, 26 December 2004. http://www.youtube.com/watch?feature=player_detailpage&v=NCWd21ortdk
Ward S (2001) Landslide tsunami. J Geophys Res 106(6):11201–11215
Williams DM, Hall AM (2004) Cliff-top mega-clast deposits of Ireland, a record of extreme waves in the North Atlantic- storms or tsunamis? Mar Geol 206:101–117
Young RW, Bryant EA, Price DM (1996) Catastrophic wave (tsunami?) transport of boulders in southern New South Wales, Australia. Zeitschrift für Geomorphologie 40(2):191–207
Acknowledgements
I am grateful to Vicente Santiago-Fandiño and Yevgeniy Kontar for their comments. I also thank Grahame Oliver and An Yi Lau (National University of Singapore) and Ray Durrheim (CSIR/University of the Witwatersrand) for discussions. I am indebted to two anonymous reviewers who helped to improve the paper. Financial support from the South African National Research Foundation to attend the AOGS-AGU Joint Assembly in Singapore (August, 2012) is gratefully acknowledged.
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Master, S. (2014). A Note on Imbricated Granite Boulders on NW Penang Island, Malaysia: Tsunami or Storm Origin?. In: Kontar, Y., Santiago-Fandiño, V., Takahashi, T. (eds) Tsunami Events and Lessons Learned. Advances in Natural and Technological Hazards Research, vol 35. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-7269-4_12
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