We've all seen photos of trees with spectacular root systems, but this one had an interesting comment:
They have found lithium deposits by testing desert plants they know have deep root systems like this (phreatophytes). So if you are a aspiring exploration geologist it can pay to know which plants have the deep root systems and which don’t. If a plant tests high for lithium or other indicators they can better target their drilling program. Probably useful for finding other minerals too i.e. arsenic or gold etc but I’ve only heard of it being used for lithium.
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