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Scientific American

2020-09-05, 12:23
Red Stalagmites Reveal Glimpses of the Past


In a cave in northern Spain, stalagmites rich in organic matter are environmental record keepers



-- Read more on ScientificAmerican.com


https://www.scientificamerican.com/artic...-the-past/
www.chinaphonearena.com > Off The Wall > Tech & Science > [Sci-Am] Red Stalagmites Reveal Glimpses of the Past