美国卡林型金矿定年史的启示
Total Visits ： 2450
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Area visits Ranking
| Top Country Views | Visits |
| China | 419 |
| United States | 57 |
| 未知 | 16 |
| Japan | 6 |
| Canada | 2 |
| South Korea | 2 |
| Moldova | 2 |
| Mexico | 2 |
| Austria | 1 |
| Cuba | 1 |
| Top City Views | Visits |
| Beijing | 71 |
| Shanghai | 54 |
| Hefei | 39 |
| Jinan | 39 |
| Zhengzhou | 36 |
| Chongqing | 29 |
| Changchun | 22 |
| Chengdu | 18 |
| Nanchang | 17 |
| 未知 | 16 |