Geology & Rocks
Shale
Shale is formed from clay, mud or gyttja (a high content of decayed animal and plant remains). The colour varies with organic content from grey, green and black.
Created: March 10, 2022 10:38 AM Tags: Sedimentære
Shale is formed from clay, mud or gyttja (a high content of decayed animal and plant remains). The colour varies with organic content from grey, green and black.
Shale. Photo: Der_Messer, CC BY 3.0, via Wikimedia Commons
