21 мар. 2023 г. · Confined aquifers are overlain by impermeable rock or clay. Unconfined aquifers are closer to the surface. |
A confined aquifer is bounded by a layer of solid rock or very thick clay that does not easily let water through. It is impermeable. In contrast, an unconfined ... |
An aquifer which is not overlain by any confining layer but has a confining layer at its bottom is called unconfined aquifer. It is normally exposed to the ... |
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