Pit N Thesis · thesis-4-24
Core photographs — A2–B1 interburden
The A2–B1 package contains heterolithic fine-grained clastics and the Suban marker used in the source correlation. Its value lies in the conjunction of lithology, marker position and log response; none of those components should be treated as an independent chronostratigraphic datum without regional calibration.
SOURCE-LED TECHNICAL READING
Geological interpretation and evidential boundary
The A2–B1 package contains heterolithic fine-grained clastics and the Suban marker used in the source correlation. Its value lies in the conjunction of lithology, marker position and log response; none of those components should be treated as an independent chronostratigraphic datum without regional calibration. In the thesis, the core is treated as a vertical succession: contacts, grain-size changes, structures and missing recovery are retained rather than averaged into one lithology name. Correlation gains weight when adjacent boreholes reproduce that ordered facies transition together with the log marker; an isolated look-alike bed is not a chronostratigraphic datum. The matching internship panel documents provenance continuity and is not counted as a second sample.
- Source
- Private thesis source vault · Chapter IV record
- Location in source
- PDF page 116
- Image quality
- Source scan
- Record ID
- thesis-4-24
