Table T3. Alteration codes used in the alteration log.
| Code | Definition |
|---|---|
| Alteration mineral abundance: | |
| 1 | <1% |
| 2 | <10% |
| 3 | 10%–50% |
| 4 | 50%–90% |
| 5 | >90% |
| ? | Tentative identification |
| Alteration assemblage: | |
| 1 | Serpentine |
| 2 | Talc/Tremolite/Chlorite |
| 3 | Greenshist facies mafic |
| 4 | Amphibolite facies mafic |
| 5 | Rodingite |
| 6 | Talc alteration |
| 7 | Low-grade alteration (clays, zeolites, etc.) |
| 9 | Other (described as comment) |
Notes: Alteration mineral abundance is used in columns W to AI of the alteration log (see “Supplementary material”). Alteration assemblage is used in column L of the alteration log. See also % confidence column; a high degree of confidence normally indicates thin section observation.
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