Published: Jan 1, 2007
aggregates quantitative petrography dolentes troctolites
P. Pomonis
I. Rigopoulos
B. Tsikouras
K. Hatzipanagiotou

The relationships between pétrographie and physicomechanical properties of basic igneous rocks· from the Pindos ophiolitic complex, northwestern Greece, were investigated. The mineralogical composition was quantified from one polished thin section per sample with a polarizing microscope, by using the point count method. Textural description was also carried out by using both polarizing and scanning electron microscope. The same samples were also tested to determine moisture content, water absorption, specific gravity, total porosity, void ratio, uniaxial compressive strength, Los Angeles, micro-Deval, PSV and Sand Equivalent values. The relationships between these properties and the pétrographie characteristics are described by simple regression analyses. The results indicate that plagioclase, chlorite, quartz and actinolite contents of the studied rock-types significantly influence their physicomechanical properties. Additionally, some textural parameters such as the mean grain size and the complexity of grain boundaries influence their mechanical strength.

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  • Mineralogy-Petrology-Geochemistry-Economic Geology
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Âkesson, U., Stigh, J., Lindqvist, J.E., and Göransson, M., 2003. The influence of foliation on the fragility of granitic rocks, image analysis and quantitative microscopy, Eng. Geol, 68, 23-28.
Al-Oraimi, S.K., Taha, R., and Hassan, H.F., 2006. The effect of the mineralogy of coarse aggregate on the mechanical properties of high-strength concrete, Construction and Building Materials, 20, 499-503.
Bohloli, B., 2001. Mechanics of Rock Fragmentation, PhD thesis, Department of Geology, Chalmers University of Technology A95.
Brattli, B., 1992. The influence of geological factors on the mechanical properties of basic igneous rocks used as road surface aggregates, Eng. Geol, 33, 31-44.
Gunsallus, K.L., and Kulhawy, F.H., 1984. A comparative evaluation of rock strength measures, Int. J. Rock Mech., Min. Sci. Geomech. Abstr., 21(5), 233-248.
Haney, M.G., and Shakoor, Α., 1994. The relationship between tensile and compressive strengths for selected sandstones as influenced by index properties and pétrographie characteristics, Proc. 7th Int. IAEG Cong., Lisbon, Portugal, IV, 3013-3021.
Haraldsson, H., 1984. Relation between petrography and the aggregate properties of Icelandic rocks, Bull. Int. Assoc. Eng. Geol., 30, 73-76.
Hey, M.H., 1954. A new review on the chlorites, Mineral. Mag., 224, 277-298.
Irfan, T.Y., and Dearman, W.R., 1978. The engineering petrography of weathered granite in Corn wall, England, Quart. J. Eng. Geol, 11, 233-244.
Jones, G., and Robertson, A.H.F., 1991. Tectono-stratigraphy and evolution of the Mesozoic Pindos ophiolite and related units, northwestern Greece, J. Geol. Soc. London, 148, 267-288.
Kostopoulos, D., 1989. Geochemistry, petrogenesis and tectonic setting of the Pindos ophiolite, NW Greece, Ph. D. Thesis, Univ. Newcastle, 468pp.
Leake, B.E., Wooley, A.R., Arps, C.E.S., Birch, W.D., Gilbert, M.C., Grice, J.D., Hawthorne, F.C., Kato, Α., Kisch, H.J., Krivovichev, V.G., Linthout, K., Laird, J., Mandarino, J., Maresch, W.V., Nickel, E.H., Rock, N.M.S., Schumacher, J.C., Smith, D.C., Stephenson, N.C.N., Ungaretti, L., Whittaker, E.J.W., and Youzhi, G., 1997. Nomenclature of amphiboles; report of the Subcommittee on amphiboles of the International Mineralogical Association Commission on New Minerals and Mineral Names, Eur. J. Mineral, 9, 623-651.
Miskovsky, K., Taborda Duarte, M., Kou, S.Q., and Lindqvist, P.-A., 2004. Influence of the mineralogical composition and textural properties on the quality of coarse aggregates, Journal of Materials Engineering and Performance, 13(2), 144-150.
Morimoto, N., Fabries, J., Ferguson, A.K., Ginzburg, I.V., Ross, M., Seifert, F.A., Zussman, J., Aoki, K., and Gottardi, G., 1988. Nomenclature of pyroxenes, Am. Mineral, 73, 1123-1133.
Olsson, W.A., 1974. Grain size dependence of yield stress in marble, J. Geophys. Res., 79(32), 4859-4862.
Räisänen, M., 2004. Relationships between texture and mechanical properties of hybrid rocks from the Jaala - Iitti complex, southeastern Finland, Eng. Geol, 74, 197-211.
Rigopoulos, I., Pomonis, P., Tsikouras, B., and Hatzipanagiotou, K., 2006. Comparative evaluation of dolerites from the Pindos and Vourinos ophiolitic rocks for their use as aggregates, Tech. Chron. (in press)
Schön, J.H., 1996. Physical properties of rocks: fundamentals and principles of petrophysics, In K. Helbig and S. Treitel (eds), Handbook of Geophysical Seismic Exploration, vol. 18. Pergamon, Trowbridge, UK, 133-319pp.
Shakoor, Α., and Bonelli, R.E., 1991. Relationship between pétrographie characteristics, engineering index properties, and mechanical properties of selected sandstones, Bull. Int. Assoc, of Eng. Geol, XXVIII (1), 55-71.
Shea, W.T., and Kronenberg, A.K., 1993. Strength and anisotropy of foliated rocks with varied mica contents, Journal of Structural Geology, 15, 1097-1121.
Smith, M.R., and Collis, L., 2001. Aggregates: Sand Gravel and Crushed Rock aggregates for Construction Purposes, Geological Society, London Eng. Geol, Sp. Pubi. 17.
Spray, J.G., Bébien, J., Rex, D.C., and Roddick, J.C., 1984. Age constraints on the igneous and metamorphic evolution of the Hellenic-Dinaric ophiolites, In J.E. Dixon and A.H.F.
Robertson (eds), The geological evolution of the eastern Mediterranean, Geol. Soc. (London), Spec. Pubi, 17, 619-627.
Tsikouras, B., Pomonis, P., Rigopoulos, I., and Hatzipanagiotou, K., 2005. Investigation for the suitability of basic ophiolitic rocks from the Mikroklissoura Grevena area as anti-skid aggregate material and railroad ballast, Proc. of the 2nd Conference of the Committee of Economical Geology, Mineralogy and Geochemistry, 347-356.
Tugrul, Α., and Zarif, I.H., 1999. Correlation of mineralogical and textural characteristics with engineering properties of selected granitic rocks from Turkey, Eng. Geol, 51, 303-317.
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