Hydrogeochemical Evolution and Control Mechanism of Underground Multiaquifer System in Coal Mine Area

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left" rowspan="2">Parameters</td><td class="align_center" colspan="2">Principal factor</td></tr><tr class="thead"><td class="align_center">1</td><td class="align_center">2</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">Na<sup>+</sup></td><td class="align_center">0.323</td><td class="align_center">0.16</td></tr><tr><td class="align_left">Ca<sup>2+</sup></td><td class="align_center">-0.081</td><td class="align_center">-0.278</td></tr><tr><td class="align_left">Mg<sup>2+</sup></td><td class="align_center">0.075</td><td class="align_center">-0.379</td></tr><tr><td class="align_left">Cl<sup>−</sup></td><td class="align_center">0.342</td><td class="align_center">-0.059</td></tr><tr><td class="align_left">SO<sub>4</sub><sup>2−</sup></td><td class="align_center">0.514</td><td class="align_center">-0.215</td></tr><tr><td class="align_left">HCO<sub>3</sub><sup>−</sup></td><td class="align_center">-0.208</td><td class="align_center">0.511</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Principal factor score coefficients.</div>

Geofluids

tab4

Table 4

Table 4: Hydrogeochemical Evolution and Control Mechanism of Underground Multiaquifer System in Coal Mine Area 