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StupidizeMe t1_iyoxzoj wrote

I'm curious what the black streak streak on the blue iceberg is. Any idea?

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ApresEverything t1_iyp8dxo wrote

I was just there in October. It's likely dirt. We hiked up and into the glacier and the top of it is incredibly dirty. Just earth debris, sand, etc. Much of the sand in Iceland is volcanic, black.

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captainInjury t1_iyrjz4c wrote

My guide told me ash. But apparently the dirt is so ashy there’s really no difference.

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armitage2112 t1_iypa3jb wrote

volcanic ash. If you imagine back when it was freezing there would still be debri flying around and getting stuck within the ice.

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