Table 2 The proportion of each age group in surface samples from the Mu Us Desert and potential sources
Sample ID | 0–200 Ma (%) | 200–350 Ma (%) | 350–600 Ma (%) | 600–1600 Ma (%) | 1600–2200 Ma (%) | 2200–2800 Ma (%) | 2800–3200 Ma (%) |
|---|---|---|---|---|---|---|---|
Crataceous MU | 0 | 16 | 5 | 4 | 44 | 30 | 0 |
NE MU | 1 | 23 | 9 | 6 | 34 | 27 | 0 |
SW MU | 1 | 27 | 29 | 12 | 22 | 9 | 0 |
CLP | 3 | 24 | 30 | 21 | 15 | 7 | 0 |
NE CLP | 0 | 19 | 5 | 3 | 42 | 31 | 0 |
East Hobq | 1 | 20 | 17 | 4 | 31 | 27 | 0 |
Middle-West Hobq | 0 | 31 | 21 | 11 | 25 | 13 | 0 |
NETP | 2 | 19 | 38 | 23 | 12 | 7 | 0 |
Yellow River | 1 | 22 | 31 | 21 | 17 | 8 | 0 |
NW deserts | 0 | 43 | 25 | 11 | 14 | 7 | 0 |
Gobi | 2 | 48 | 29 | 11 | 9 | 1 | 0 |
Western NCC | 1 | 25 | 11 | 4 | 38 | 21 | 0 |
Tarim Basin | 1 | 13 | 60 | 11 | 9 | 4 | 2 |