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Ancient Maya reservoirs contained toxic pollution（图）
Ancient Maya reservoirs contained toxic pollution
2020/7/17
Findings from research conducted by a University of Cincinnati team suggest that droughts in the ninth century along with pollution of reservoirs likely contributed to the depopulation and e...
A history of snowfall on Greenland,hidden in ancient leaf waxes
history of snowfall Greenland ancient leaf waxes
2016/5/31
The history of Greenland’s snowfall is chronicled in an unlikely place: the remains of aquatic plants that died long ago, collecting at the bottom of lakes in horizontal layers that document the passi...
Litorina Sea sediments of ancient Vääna Lagoon,northwestern Estonia
Litorina Sea transgression diatoms pollen radiocarbon dating Vä ä na Lagoon
2009/10/21
Vääna Lagoon (59°22′30″N, 24°25′00″E) is located 25 km west of Tallinn in ancient Vääna Klint Bay at a 22 m Litorina Sea isobase. Lagoonal deposits were reinvestigated and new resu...