EARTHSC 1G03 Final: Topic 6
15 Sep 2016
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E luent: streams fed by surrounding groundwater i. e. gaining water. Influent: streams above the water table arid regions i. e. losing water. Recharge area: areas where water table is gaining water. Discharge area: areas where water table is losing water. Aquitard: fine-grained sediments / rock with low permability, such as clay, preventing flow of contaminants into groundwater. Pollution pollution is best placed on aquitards some of it floats / sinks salt meets fresh leads to sulfate smells vitds safe, thoughw. Algal bloom (cid:471). fungi, bacteria eat up algae, requiring oxygen (cid:472). Pore space collapses causes ground to lower more flood-prone because pores have collapsed. Water table can form caves or karst when water table disappears and only limestone remains stalactite: top stalagmite: bottom creates sinkhole when collapses. Rock slide: bedrock loses cohesion with rock below it. Weak layers, such as shale, supporting heavy loads groundwater high from lots of rain erosion.
