STRUCTURAL AND GEOMORPHOLOGICAL ASPECTS OF THE CATAK LANDSLIDE, NE TURKEY


GENC S.

QUARTERLY JOURNAL OF ENGINEERING GEOLOGY, vol.26, no.2, pp.99-108, 1993 (SCI-Expanded) identifier identifier

Abstract

The bedrock of the Catak area comprises Upper Cretaceous marls, shales, tuffites, limestone and basalts. This is overlain by younger colluvium essentially loose material detached from the bedrock masses by chemical, mechanical and/or tectonic processes where older rocks crop out. The bedrock is slightly folded but highly fractured. The geological and the geomorphological field investigations have shown that jointing and faulting in combination with pervasive weathering, steep topography, water incision, heavy rainfall and road cuts have all played a significant role in the occurrence of the landslide.