Portal:Earth sciences/DYK/12

Columnar basalt at Cape Stolbchaty, Russia

... that more than 90 percent of all volcanic rock on Earth is basalt (example pictured)?
... that the almost 50-million-year-old fossil leaves of Comptonia columbiana (example pictured) preserve evidence of moth feeding?
... that Brown Lake is of cultural and spiritual significance to the Quandamooka people?
... that the fictional battle Operation Yashima, displayed in the Neon Genesis Evangelion episode "Rei II", inspired a real unofficial campaign in Japan to conserve electricity after the 2011 Tōhoku earthquake and tsunami?
... that more than 400 millimetres (16 in) of rain was recorded in northern Turkey on 11 August 2021, causing catastrophic flooding?
... that the oldest rock in the Eastern Block of the North China Craton is a 3.8- to 3.6-billion-year-old trondhjemitic piece of gneiss?