PTBA Internship Report · internship-4-u27
Seam B1 core record
Seam B1 is correlated through RTB 11, RTS 74 and RTS 06 as a comparatively thick, approximately 9–14 m coal body. Clay partings of roughly 0.5–2.5 cm are recorded within the seam and must be carried into any clean-coal thickness or quality calculation.
SOURCE-LED TECHNICAL READING
Geological interpretation and evidential boundary
Seam B1 is correlated through RTB 11, RTS 74 and RTS 06 as a comparatively thick, approximately 9–14 m coal body. Clay partings of roughly 0.5–2.5 cm are recorded within the seam and must be carried into any clean-coal thickness or quality calculation. In the internship report, the core photograph establishes recovered lithology and vertical order; it cannot measure continuity between boreholes. Brightness, dull bands and visible clay partings are valid core-scale descriptions, while peat composition, rank and saleable quality require the linked laboratory results. The three boreholes correlation becomes persuasive where core boundaries and depth-matched gamma–density markers reproduce the same roof–seam–floor succession; incomplete recovery, broken core and depth offsets remain competing explanations for an apparent thickness change. Where the same panel appears in the later thesis, it preserves the source history rather than adding a second independent observation.
- Source
- Private internship source vault · Chapter IV record
- Location in source
- 4.4.4 Seam B1
- Image quality
- Source scan
- Record ID
- internship-4-u27
