Geological Mapping · mapping-4-36
Anticline stereographic analysis
The anticline stereonet can estimate a fold axis from bedding poles only when the dataset samples both limbs adequately and poles define a statistically meaningful girdle. The plate should report the number of attitudes, limb grouping, orientation convention, best-fit great circle, calculated axis and angular confidence or dispersion.
SOURCE-LED TECHNICAL READING
Geological interpretation and evidential boundary
The anticline stereonet can estimate a fold axis from bedding poles only when the dataset samples both limbs adequately and poles define a statistically meaningful girdle. The plate should report the number of attitudes, limb grouping, orientation convention, best-fit great circle, calculated axis and angular confidence or dispersion. Spatial autocorrelation matters: many readings from one exposure do not equal independent regional control. The solution should predict the mapped hinge trace, plunge direction, stratigraphic repetition and cross-section geometry. If the poles form clusters rather than a girdle, a cylindrical fold model may be inappropriate. The figure is therefore a quantitative hypothesis whose strength depends on transparent sampling and map-level validation.
- Source
- Private mapping source vault · geological evidence record
- Location in source
- PDF page 82
- Image quality
- Source scan
- Record ID
- mapping-4-36
