Tag Archives: concretions

“Blueberries” could date when Meridiani rocks were last wet

Posted on June 20, 2012 by rburnham

The relative amount of three chemical elements contained in Martian “blueberries” might offer scientists a way to date when these spherules were last inundated with water, according to recent research. Rich in the iron mineral hematite, blueberries are small concretions, … Continue reading →

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