Seams

On the Stratigraphic tab, in the Seams group:

• Click Generate Seam File to extract the intervals that define seams in a more generic (typically lithology) Interval file.

The output to the process is a Seam file. A Seam file is an Interval file which has additional fields that record the status of all logged and inserted seams. The Seam file is used as an input to various Seam Stratigraphic functions.

• Click Interpolate Seams to breakdown existing seams into the detail defined in a stratigraphic sequence.



Using a Seam file and a (compiled) Stratigraphy file, the Interpolate Seams function will check each seam name in the SEAM_LOGGED field of the Seam file.

If a seam has children, records will be inserted to identify this detail. If percentage values have been defined, they will be used to calculate the new FROM and TO values for each record. If percentages are undefined, a seam will be evenly divided into its children. This process will be repeated on the new seam names, until there are no further iterations. These new records will replace the original record.

All new records will have the original seam name in the SEAM_LOGGED field and they will all be marked as INSERTED in the Description field. The Seam field will reflect the detail stratigraphic sequence.

Unless you need to populate the Formation field, there is no need to run this function if none of the seams in the Seam file have children (in other words, all of the seams are leaf nodes and are listed in the Stratigraphy column file).

• click Insert Seams and Interburden to insert interburden between seams and insert zero thickness intervals for missing seams.

• Click Extract Reference Seam to create an Elevation file of the points where the holes intersect the reference seam.

• Click Extrapolate Reference Seam to create an Elevation file of the points where the holes intersect, or are modelled to intersect, the reference seam.