%0 Journal Article %T Forecasting weathering and rock erosion through rock surface hardness: A case study on the Av£¿a Island granite formations %A H¨¹seyin TURO£¿LU %J - %D 2018 %X Rock erosion and its severity are directly proportional to the severity weathering. Erosion develops rapidly and effectively in rocks where the weathering is severe. The variations in the rock surface hardness values are indication of the weathering level of rocks. Rock surface hardness values tend to decrease on the weathered rocks. Rock surface hardness itself can be measured and classified easily using a Schmidt hammer. The purpose of this study is to asses and analyse the rock hardness across Av£¿a Island (in the Marmara Sea, Turkey) using the Schmidt hammer methodology. Rock surface hardness measurements were made on Av£¿a Island granites at 100 different locations using the Schmidt hammer. A statistical analysis of the measurement data was carried out followed by field controls of the new data obtained from the analysis. The results were used to create a rock surface hardness classification for Av£¿a Island, and were also assessed as indicators of weathering rate and erosion potential. This new classification indicates that Av£¿a Island's Granite rocks can be segmented into 3 basic groups. 40% of the granites are "Hard", without serious weathering and resistant to erosion. The second group, represents 10% of the of Av£¿a Island's granite and is classified as "Medium to Weak". The remaining 50% Group 3 granites in the Av£¿a Island fall into the "Very weak" class. Group 3 granites are rocks deformed by weathering, and have high erosion potential %K Kaya y¨¹zey sertli£¿i %K Kaya erozyonu %K Schmidt £¿ekici %K Granit ayr£¿£¿mas£¿ %U http://dergipark.org.tr/jader/issue/43138/523009