1. Having the same angle of inclination or dip; relating to lines or surfaces that make equal angles with a reference plane or direction.
Usage: technical; geology; geophysics

1. A line on a map or chart connecting points of equal magnetic inclination or dip.
Usage: technical; cartography; geophysics

Examples

• Geologists use isoclinal folds to understand the structural history of mountain ranges.
• The isoclinal lines on the magnetic map show where the Earth's magnetic field has the same angle of dip.
• Isoclinal surfaces in rock formations indicate similar stress conditions during deformation.
• Navigation charts often display isoclinal curves to help pilots account for magnetic variation.
• The isoclinal pattern revealed that the rock layers had undergone uniform tilting.