Research Article
Study on Layered-Backfill-Based Water Protection Technology of Thick Coal Seam in the Ecologically Fragile Mining Area in Western China
Table 2
Proportion of mine water sourced from the surrounding operating coal mines.
| | Coal mine | Isotopic characteristics | Proportion of shallow water (%) | | Name | Overburden combination | Depth (m) | δ18O | δD |
| | Jin Jitan | | 229.6~262.1 | -10.8 | -81.5 | 7.0~25.0 | | Caojiatan | | 255~338 | -10.8 | -81.9 | 7.0~25.0 | | Xiaobaodang no.1 | | 296.7~367.73 | -10.8 | -81.2 | 7.0~25.0 |
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