What Nourin reads in the sheet
- The borehole intervals and their depths;
- The recovery rate and RQD of each run;
- The lithological descriptions written by the operator;
What Nourin does with it
- Rates rock quality according to Deere (1964), an RQD below 25% indicating very poor quality;
- Checks the lithological vocabulary against a bilingual French-English geotechnical lexicon;
- Corrects safe typing errors — spaces, case, punctuation — and flags the rest without changing it;
- Writes the borehole summary;
Substantive corrections are never applied automatically: they are suggested, with a safeguard against false positives.
References
NF P94-500RQD, Deere (1964)