A clean cut through rock

20 36

A dyke forced its way through a fine-grained, layered volcanic rock that was eroded by wind, snow and rain at the eastern part of Dyngjufjöll in Iceland. The contact between dyke and host rock is a mm-thick, black, glassy layer while the dykes brown interior is glass altered by heat and water.

Comments

No comments yet. Be the first to share your thoughts.