Some minerals in lava could suggest water is nearby.
An enhydro is a hollow nodule that contains water, most often made up of chalcedony – a form of silica that consists of ...
Throughflow - Water flows downhill within the soil. Groundwater flow - Water flowing slowly through rocks towards the sea. Percolation - The downward movement of water from the soil into the rock ...
An enhydro is a hollow nodule that contains water, most often made up of chalcedony ... They develop when groundwater rich in silica flows through rock and begins building up layers of quartz.
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