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Comparison between IEA and SPA endmembers
| Rock_type | IEA endmember | SPA endmember |
|---|---|---|
| Felsic (Granite/varnish) | IEA_3 | SPA_3 |
| Marble | IEA_7, IEA_22 (Similar but differ in amplitude) | SPA_6, SPA_23 (Similar but differs in amplitude) |
| Peridotite | IEA_14 | *SPA_11, SPA_30 |
| Fe-metasediment | IEA_19 | SPA_12 |
| Clay-metasediment | IEA_13 | SPA_16 |
| Metasediment | IEA_28 | Missing |
| Quartzite | IEA_30 | SPA_22, SPA_28 (Similar but differs in amplitude) |
This endmember is labeled as peridotite based on Figure 8.
