This is what a dirty #speleothem looks like: pollen concentration ranging from 1000-20,000 pollen grains/gram of calcite. More or less useless to the stable isotope paleoclimatologists! A challenge for the U-Th folk! But the perfect specimen for the speleothem #palynologist pic.twitter.com/CFxSUARCTG
— Kale Sniderman (@kalesniderman) August 28, 2019
via Twitter https://twitter.com/kalesniderman
August 28, 2019 at 04:43PM
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