Pit N Thesis · thesis-4-42
Structure contour and distribution — Seam A1
The A1 structure-contour and surface pair is built from three boreholes, an interpreted thickness range of about 3–10 m, and a source-reported attitude of N310°E/18° NE. Contours summarize the interpolated roof or floor elevation; they are not additional measurements between boreholes.

SOURCE-LED TECHNICAL READING
Geological interpretation and evidential boundary
The A1 structure-contour and surface pair is built from three boreholes, an interpreted thickness range of about 3–10 m, and a source-reported attitude of N310°E/18° NE. Contours summarize the interpolated roof or floor elevation; they are not additional measurements between boreholes. The surface is most defensible inside the control polygon and progressively less certain toward model edges, where algorithm choice can dominate apparent curvature and thickness. Quality control should test the surface against every seam intersection, topographic clearance, stratigraphic order and leave-one-well-out alternatives. The figure demonstrates a coherent working geometry, not a reserve estimate or proof that dip and thickness remain constant outside the drilled area.
- Source
- Private thesis source vault · Chapter IV record
- Location in source
- PDF page 177
- Image quality
- Source scan
- Record ID
- thesis-4-42



