Relationship of petrographic and mineralogical characteristics with mechanical strength properties of granitic rocks: a case study from the Biga Peninsula, NW Turkey

This study was carried out on granitic rocks from the Biga Peninsula in order to investigate petrographic, and mineralogical properties comparison with mechanical strength properties. conducted four different locations where outcrop north south Peninsula: Lapseki (Şevketiye granite), Ezine (Kestanbol Bayramiç (Yassıbağ Edremit (Eybek granite). Field observations detailed petrographic studies of representative samples indicate that they are quartz monzodiorite Yassıbağ), monzonite (Kestanbol), granodiorite (Eybek) composition. All have similar mineral composition, comprising mainly feldspar (plagioclase-alkali feldspar), quartz, mafic minerals (biotite amphibole), accessory (sphene, zircon, opaque minerals), secondary (sericite, epidote, chlorite) differences percentage modal mineralogy, textural details, weathering. Physical were also defined this study, these include water absorption, porosity, uniaxial compressive (UCS), tensile (TS), Schmidt hardness tests (SHT), Los Angeles test (LA), frost resistance (FRT) sodium sulfate (Na2SO4). The results show Şevketiye granite had lowest values highest for abrasion, resistance, porosity. Eybek exhibited value strength, A all studied their respective strengths degree alteration, texture influence rocks. Additionally, an increasing propensity UCS TS found SHT values. LA abrasion FRT increase decreasing tested samples. could help application as row material.