Dip and strike are fundamental structural geology measurements that describe the orientation of planar rock formations within the Earth's subsurface. Strike defines the compass direction of a horizontal line along an inclined rock layer, while dip quantifies the maximum angle and direction at which that layer descends from horizontal. Together, these measurements provide critical spatial data for understanding subsurface geological architecture.

In GIS workflows, dip and strike data are integrated into geospatial platforms to generate three-dimensional structural models, interpolate subsurface formations across survey areas, and produce accurate geological maps. Specialized GIS tools and extensions enable analysts to visualize field-collected orientation measurements as symbolic map overlays, perform spatial analysis on formation continuity, and cross-reference structural data with borehole logs, seismic surveys, and topographic datasets. Spatial interpolation techniques such as kriging and inverse distance weighting are commonly applied to extrapolate measurements across unmapped regions.

The practical benefits include improved resource exploration accuracy in oil, gas, and mining industries, enhanced geotechnical hazard assessment for infrastructure planning, and more reliable geological mapping outputs. Leveraging GIS technology for dip and strike analysis transforms raw field measurements into actionable, spatially referenced intelligence that supports informed subsurface decision-making.