c/pics · by hexual@lemmy.world · 1yJust one of many fantastical rocks along this stretch of coast [OC] Cheswick Sands, Northumberland, UK. 112 points · 2 comments · view on lemmy.world
2 Comments
NocturnalMorning@lemmy.world · 3 pts · 1y
Looks like hardened lava flow. Is that what this is?
hexual@lemmy.world · 6 pts · 1y
Nope. Cross-stratification in sandstones. Each curved layer represents an ancient dune or ripple that migrated across a river channel or shallow sea floor.