REMOTE-SENSING OF FOLDS AND SHEAR ZONES - A CASE-STUDY FROM THE DELHISUPERGROUP AROUND BEAWAR, DISTRICT-AJMER, RAJASTHAN, INDIA

A visual interpretation of satellite images and aerial photographs was carried out to determine the tectonic setting around Beawar, which is a part of the Proterozoic Delhi fold belt of northwestern India. Imag es are used in demarcating regional structural patterns such as lineam ents, folds and faults etc., whereas large scale aerial photographs ha ve been used to locate regional as well as local structures, like fold s and secondary oblique shears in the area. The folded marker bed asso ciated with incompetent pediment rocks and longitudinal shears indicat ed the direction of movement of shears, as right-handed and that of ob lique shears as left-handed. The detailed studies plus remote sensing techniques revealed that the Delhi Supergroup of rocks in this area ha ve undergone a polyphase deformation.