PTBA Internship Report · internship-4-u30
A2 interburden and marker interval
The A2 interburden panel records fine heterolithic clastics together with the Suban marker used in the source correlation. The marker is operationally useful because it provides a recognisable level between seam packages, but visual similarity alone does not make it an isochron.
SOURCE-LED TECHNICAL READING
Geological interpretation and evidential boundary
The A2 interburden panel records fine heterolithic clastics together with the Suban marker used in the source correlation. The marker is operationally useful because it provides a recognisable level between seam packages, but visual similarity alone does not make it an isochron. Mineralogy, geochemistry or regionally consistent stratigraphic position would be needed to demonstrate one event bed. Until then, the record is a local correlation aid whose continuity is tested by core order and log response.
- Source
- Private internship source vault · Chapter IV record
- Location in source
- 4.4.5 Seam A2
- Image quality
- Source scan
- Record ID
- internship-4-u30
