On The Origin Of Alveolar Disintegration At The Western Shores Of Gelibolu Peninsula
Various specific disintegration types, characterized by alveolar disintegration, were observed in Cape Büyükkemikli, at the northern side of Suvla Bay and western side of Gelibolu Peninsula. Field observations and analytical data indicate that alveolar disintegration, which developed over Oligocene sandstones, is dominant at carbonate-cemented sandstones, with fine to medium texture and rich in biotite and plagioclase. Alveolisation ideally develops over the surfaces of sandstone layers, which are dipping towards the sea with an angle of 33- 40°. Furthermore, it is understood that disintegraton over sandstone is related to micropore and microfracture zones and supported by the biogenic origined formations along the intratidal zone. Salt disintegration is effective within the wave wash zone as a result of evaporation conditions during the periods of May-June. Besides, ellipsoidal disintegration cells and tafoni formations are abundant over frontal walls, which receive the impact of south sector winds with right angle. The edges of polygonal fracture zones, hardened by iron oxide infillings delimits alveolisation
Keywords:
Alveol, salt disintegration, biogenic disintegration, intratidal zone, Gelibolu Peninsula,
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- Andrews, J.E., Brimblecombe, P., Jickells, T.D., Liss, P.S., and Reid, B.J. 2004. An Introduction to Environmental Chemistry. Blackwell Science, Oxford, U.K, 296p.
- Bouchart, J. 1930. Le probleme des "taffoni" de Corse el l'érosion alvéolaire. Revue de Géographie Physique et de Géologie Dynamique, 3, 5-18.
- Bradley V.C., Hutton J.T. and Twidale C.R. 1978. Role of salts in development of granitic tafoni. South Australian Journal of Geology, 86, 647-654.
- Cooke, R.U., Varren, A. and Goudie, A. 1993. Desert Geomorphology. London: University College London Press, 526p.
- Dana, J.D. 1849. Geology. U.S. Exploring Expedition (1838-1842), V. 10, Philadelphia, C. Herman, 529 p.
- Darwin, C.R. 1839. Journal of researches into the na- tural history and geology of the countries visit- ed during the voyage of HMS Beagle round the world: New York, D. Appleton, 450.
- Evans, I.S. 1970. Salt crystallization and rock weather- ing: A review. Revue de Géomorphologie Dynamique, 19, 153-177.
- Folk, R.L., Andrews, P.B. and Lewis, D.W. 1970. Detrital sedimentary rock classification and nomenclature for use in New Zeland. New Zeland Journal of Geology and Geophysics, 13. p. 955.
- Gökçen, L.S. 1967. Keban bölgesinde Eosen-Oligo- sen sedimantasyonu, Güneybatı Türkiye Trak- yası. MTA Bulletin, 69, 1-10.
- Kelletat, D. 1980. Studies on the age of honeycombs and tafoni features. Catena, 7, 317-325.
- Kellog, H.E. 1973. Geology and Petroleum prospects Gulf of Saros and vicinity southwestern Trace: Ashland Oil of Turkey, Inc. Türkiye Petrol Ibleri Genel Müdürlüðü Arbivi, Ankara (unpublished).
- McBride, E.F. and Picard, M.D., 2004, Origin of honey- combs and related weathering forms in Oli- gocene Macigno Sandstone, Tuscan Coasts near Livorno, Italy. Earth Surface Processes and Landforms, 29, 713-735.
- Mc Greevy, J.P. 1985. A preliminary scanning electron microscope study of honeycomb weathering of sandstone in a coastal environment. Earth Sur- face Processes and Landforms, 10, 509-518.
- Mellor, A., Short, J. and Kirkby, S.J. 1997. Tafoni in the El Chorro area, Andalucia, southern Spain. Earth Surface Processes and Landforms, 22, 817-833.
- Mustoe, G.E. 1982. The origin of honeycomb weather- ing. Geological Society of America Bulletin, 93, 108-115.
- Önem, Y. 1974. Gelibolu ve Çanakkale dolaylarının jeolojisi. TPAO Report No: 877, Ankara (unpub- lished).
- Parkhurst, D.L. and Appello, A.A.J. 1999. User's guide to PHREEQC (version 2) - A computer program for speciation, batch action, one dimensional transport and inverse geochemical modeling: U.S. Geol. Survey, Water-resource Invest., pp. 99-4259.
- Rodriguez-Navarro, C., Doehne, E. and Sebastian, E. 1999. Origins of honeycomb weathering: The role of salts and wind. Bull. Geol. Soc. Amer., 111, 1250-1255.
- Rondeau, M.A. 1965. Formes d'érosion superficielles dan les grés de Fountainbleau: Association de Géographes Français Bulletin, 334/335, 58-66.
- Scherber, R. 1927. Erosionswirkungen an der toska- nischen Felsküste. Natur und Museum, 62, 231-234.
- Sümengen, M. and Terlemez, I. 1991. Güneybatı Trakya yöresi Eosen çökellerinin stratigrafisi. MTA Bulletin, 113, 17-30.
- Turkington, A.V. and Phillips, J.D. 2004. Cavernous weathering, dynamical instability and self-organization. Earth Surface Processes and Landforms, 29, 665-675.
- Turkington, A.V. and Paradise, T.R. 2005. Sandstone weathering: a century of research and innova- tion. Geomorphology, 67, 229-253
- ISSN: 0026-4563
- Yayın Aralığı: Yılda 3 Sayı
- Başlangıç: 1950
- Yayıncı: Cahit DÖNMEZ
Sayıdaki Diğer Makaleler
Zehra KARAKAŞ, Baki VAROL, Sonay BOYRAZ
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