Less than 2 µm, oriented mount XRD data showing clay composition and I/S ordering
| Sample name | Proportion of the clay minerals in <2 µm fraction | Ordering and composition of I/S | Non-clay minerals | ||||
|---|---|---|---|---|---|---|---|
| illite | smectite | I/S | kaolinite | chlorite | |||
| BC1 | — | — | — | — | — | — | — |
| BC2 | 51 | — | 31 | 19 | 6 | R0 60%S | — |
| BC3 | — | — | — | — | — | — | — |
| SM1 | 19 | — | 66 | 16 | — | na | qtz |
| BC4 | 40 | — | 28 | 28 | 5 | R0 60%S | qtz |
| BC5 | 37 | 0 | 30 | 29 | 4 | R0 60%S | qtz |
| 36 | — | 32 | 28 | 5 | R0 60%S | qtz | |
| ES1 | 45 | 0 | 29 | 22 | 4 | R0 60%S | qtz |
| 47 | nd | 28 | 22 | 3 | R0 60%S | qtz | |
| SM2 | 3 | 88 | 0 | 9 | 0 | — | — |
| SM3 | 5 | 86 | nd | 9 | nd | — | qtz |
| SM4 | 37 | 54 | 0 | 9 | 0 | — | — |
| SM5 | 5 | 89 | nd | 6 | nd | — | qtz |
| SM6 | 25 | 65 | nd | 10 | nd | — | qtz |
| Sample name | Proportion of the clay minerals in <2 µm fraction | Ordering and composition of I/S | Non-clay minerals | ||||
|---|---|---|---|---|---|---|---|
| BC1 | — | — | — | — | — | — | — |
| BC2 | 51 | — | 31 | 19 | 6 | R0 60%S | — |
| BC3 | — | — | — | — | — | — | — |
| SM1 | 19 | — | 66 | 16 | — | na | qtz |
| BC4 | 40 | — | 28 | 28 | 5 | R0 60%S | qtz |
| BC5 | 37 | 0 | 30 | 29 | 4 | R0 60%S | qtz |
| 36 | — | 32 | 28 | 5 | R0 60%S | qtz | |
| ES1 | 45 | 0 | 29 | 22 | 4 | R0 60%S | qtz |
| 47 | nd | 28 | 22 | 3 | R0 60%S | qtz | |
| SM2 | 3 | 88 | 0 | 9 | 0 | — | — |
| SM3 | 5 | 86 | nd | 9 | nd | — | qtz |
| SM4 | 37 | 54 | 0 | 9 | 0 | — | — |
| SM5 | 5 | 89 | nd | 6 | nd | — | qtz |
| SM6 | 25 | 65 | nd | 10 | nd | — | qtz |
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