The geology overlay

When you are looking at samples or in-situ tests, it is often useful to see the geological description for the depth each record sits at. The geology overlay adds that context inline, without you opening the description table.

When it is available#

The Geology button appears in the toolbar only when the configuration has a description table that Insight recognises, matched to the table you are viewing. If you do not see the button, the current table has no geological descriptions to overlay.

Turning it on#

Click Geology in the toolbar. Insight adds the description columns to the grid, highlighted so they stand out from the table's own columns. Click it again to remove them.

Source codes#

Insight recognises two AGS description sources:

Code	Description
GEOL	Field Geological Descriptions.
DLOG	Driller Geological Description.

When both are present in your data, a selector appears next to the button so you can choose which source to overlay. When only one is present, Insight uses it automatically.

How records are matched#

For each row, Insight works out the depth the record sits at and the location it belongs to, then pulls the description whose depth range contains that depth at that location. In other words, each sample or test shows the stratum it falls within - not every description for the borehole.