出典:Wikipedia
出典:『Wikipedia』 (2010/11/08 22:11 UTC 版)
The Heers Formation (Dutch: Formatie van Heers; French: Formation de Heers; abbreviation: Hs) is a geologic formation in the subsurface of Belgium. The formation consists of sand and marl and was deposited in the shallow sea that covered Belgium during the middle to late Selandian age of the Paleocene epoch.