Comments on: New at Rosetta Stones: Rainbow Fault Cake!

By: aspidoscelis

aspidoscelis — Sun, 14 Jul 2013 01:52:19 +0000

Trebuchet – Funny, I posted the same thing in the Rosetta Stones comment section. :-) So far as I can tell, yeah, drag folding should be bending the cake layers up rather than down, as illustrated in the about.com article Dana linked:

http://geology.about.com/library/bl/images/bldragfold.htm

In the photo there, we have the same relative movement of the two chunks of rockage–left side up, right side down, and the stuff on the right side is bent upwards along the fault…

By: lpetrich

lpetrich — Thu, 11 Jul 2013 19:33:33 +0000

One can also illustrate various principles of stratigraphy with layer cakes. Like superposition, inclusion, and cross-cutting.

By: Trebuchet

Trebuchet — Thu, 11 Jul 2013 14:48:26 +0000

Lovely! Unfortunately the second photo with the captions is getting clipped what should read “Hanging Wall” just reads “Hanging”.

And speaking of hanging walls, I’m puzzled by the downward curvature. It seems like that end should get dragged upwards, somehow. Any help for a non-geologist? (I get it in the cake, where it’s been dragged down by the knife.)

By: rq

rq — Thu, 11 Jul 2013 08:42:59 +0000

Wow, the similarity between the cake and the rock formation was uncanny (unpackagey?), to say the least. But what a great colourful idea for a children’s cake! I’ll have to file it away for our next non-gluten-free birthday party (Eldest has a friend who, unfortunately, cannot partake of packaged cake mixes for medical reasons).