Looks like some kind of intrusion of magma (the pale rock) into the darker rock. you can see how all the veins seem to originate from the pale rock, also the broken-of dark part in the pale rock seems to indicate it, could be part of the original rock, that surrounded the magma, before breaking of.
Some actual geologist might want to give their opinion though. I only had like two years of geology at university before shifting my studies toward crystallography and crystal growth.
WTF is helix?
And according to the meme Format One Piece will still oblitterate Sesame Str.
Hey. I will have you know that this magnificent beard is a sign of martial prowess and masculinity. I could easily cut you in half with any of my katanas but would find it easiest with the bat’leth, with which I have trained extensively for some time. Of course I would not have to wield the blade myself, as I can simply use my programming skills on my arch setup to program a robot to do so.
I did not need that mental picture. Thanks a lot.
Yeah. I got the theory, but I have almost no practical experience. In total something like 4 weeks of field trips. But nice to see that I still get the basics.