Flag definitions for lithology and hydrostratigraphy
| Flag | Description |
|---|---|
| flag_missing | Missing lithologic interval |
| flag_no_depths | All lithologic intervals have depths of 0 ('from' and 'to') |
| flag_zero_zero | Any lithologic interval that has a depth of 0 to 0 (only marks a single interval) |
| flag_overruns | Any lithologic interval has both depths of 0 ('from' and 'to'). Possibly a second entry for a single interval, 'overrun' interval (marks all intervals for a well) |
| flag_bottom_unit | All 'from' depths are 0, end depths are not (except possibly the first).Problem: The original log shows only the bottom of a unit (fix in GWELLS) |
| flag_bedrock | Interval where Bedrock occurs with any other primary term |
| flag_bedrock_position | A non-bedrock category occurs *below* a bedrock category |
| flag_boulders | Interval where Boulders occur with any other primary term |
| flag_missing_cats | No categories were extracted from the cleaned lithologic interval |
| flag_yield | Lithology where there are both depths and yields, but the number of yield measures do not match up with the number of depth measures (thus `yield` and `depths` are NA). Problem: there is a problem in the original log (i.e. missing a depth, or the depth is a range)or there is a problem with the extract algorithm. This only applies to Hydrostratigraphy. |
| flag_extra_digits | Lithology with extra digits which were not converted to a yield or depth. This only applies to Hydrostratigraphy. |