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(For now, I have no idea where exactly this pan was taken - it's on an alluvial fan near Salar Grande in the Atacama Desert, N. Chile. More when I can find the GPS logs!)
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Located in the Atacama Desert (n. Chile), this salar ("salt flat", essentially) produces enough mined salt to account for the domestic consumption of Chile plus a few million tons for export. The lower parts of the salar are essentially pure NaCl (rare, geologically speaking - usually there's a lot of other salts mi...
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Near the top of a debris fan deposit. Lots of rocks, a few dry gullies, not much else...
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Heading towards the top of this fan deposit, sampling along the way. Along the left edge of the pan, the debris fan terminates at a fault scarp at the base of the nearby ridge (the fault scarp is several hundred feet high, although that's really not visible here).
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(at least, that's the best guess I can make for the name of these peaks from Google Earth).
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Standing on a ridge made of Jurassic volcanic deposits (lavas, mostly likely) in the Atacama Desert... the white rocks are small salt deposits marking the location of ancient briny springs.
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View of Salar Grande ("big salt flat", basically), from a little ridge lying west of the deposit. This particular salar is extremely pure (99.9% NaCl), which is rather rare for this type of deposit (they're usually 'contaminated' with other salts as well). Mines in the Salar export several million tons of salt per ...
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I wanted to come up with a clever title, but really can't -- rocks, dust, mountains, salt... it's the Atacama.
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Examining volcanic rocks deposited in an alluvial fan. Salar Grande (a large salt deposit) is visible in the distance on the left side of the pan.
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These ridges are Jurassic aged volcanic deposits that represent earlier Andes volcanism (the current Andes are a few hundred km further east). The outcrops of these volcanic rocks are also the source material for the debris fans we're studying in this series of pans (you'll see a few geologist shadows now and then)....
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