Abstract
A procedure for analyzing digitized linear features was developed and applied to an area lying within 13–16°N and 74–78°E comprising the greenstone-granite terrain of South India. The digital procedure maps the spatial distribution of lineament length for any orientation interval using a grid cell approach. In addition, lineament intersection density, and cooccurrence of lineaments with specified orientations can be mapped. Several plots were made for the study area indicating the presence of three prominent directional wedges in 310–325°, 40–55°, and 60–75° azimuthal intervals and spatial concentrations of lineament-segments and intersection of lineaments-segments in Dharwar greenstone belts. The spatial plot showing the cooccurrence of lineaments from the prominent directional wedges indicated probable paleostructural signatures. The study demonstrates the utility of developing a spatially georeferenced digital lineament database and applying the associated analytical procedures.
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