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Sample information used in this study_
| No. | Drainage | Sample name | Sample type | Latitude (°N) | Longitude (°E) | Rock age and dating method used |
|---|---|---|---|---|---|---|
| 1 | Mian’ning River | MN05 | modern river sediments | 28°31′30″ | 102°03′42″ | 134 Ma (kb) |
| 2 | MN06 | bedrocks | 28°31′30″ | 102°03′42″ | 134 Ma (kb) | |
| 3 | Kang’ding River | KD05 | bedrocks | 29°54′34″ | 101°57′24″ | 227 Ma (kb) |
| 4 | KD06 | modern river sediments | 29°59′42″ | 101°56′50″ | 227 Ma (kb) | |
| 5 | Pan’zhihua River | PZH01 | bedrocks | 26°25′21″ | 101°44′00″ | 783 Ma (uz) |
| 6 | PZH03 | modern river sediments | 26°25′28″ | 101°44′48″ | 783 Ma (uz) | |
| 7 | Diao’tengzi River | DTZG03 | historical sediments | 29°16′01″ | 102°18′26″ | 821 Ma (kw) |
| 8 | DTZG04 | modern river sediments | 29°16′01″ | 102°18′26″ | 821 Ma (kw) |
Difference of quartz heat-treated E1’ signal intensity between sediment and its source rock_
| drainage | heating temperature (°C) | heat-treated E1′ signal intensity | |(A-B)| | (A+B)/2 | difference value (%) | |
|---|---|---|---|---|---|---|
| sediment | source rock | |||||
| Mian’ning River | 300 | 1.06 | 1.22 | 0.16 | 1.14 | 14 |
| 330 | 1.06 | 1.21 | 0.15 | 1.135 | 13 | |
| Kang’ding River | 300 | 2.60 | 2.36 | 0.24 | 2.48 | 10 |
| 330 | 2.61 | 2.36 | 0.25 | 2.49 | 10 | |
| Pan’zhi’hua River | 300 | 6.75 | 6.31 | 0.44 | 6.53 | 7 |
| 330 | 6.74 | 6.30 | 0.44 | 6.52 | 7 | |
| Diao’teng’zi River | 300 | 8.82 | 9.64 | 0.82 | 9.23 | 9 |
| 330 | 11.92 | 10.58 | 1.34 | 11.25 | 12 | |