Shoestring oasis of wild palms, fiery red in this infrared photograph, boreders the fault north of t
Shoestring oasis of wild palms, fiery red in this infrared photograph, boreders the fault north of the Imperial Valley. Movement of the plates has ground the boundary rock into a fine clay known as “gouge,” which forms a subterranean dam. Groundwater trapped on the uphill side produces the striking line of vegetation- a fragile manifestation of the titanic forces constantly reshaping the restless earth. National Geographic, January 1973 -- source link
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