Board Thread:Theories and Speculation/@comment-1512913-20161115123051/@comment-1251315-20161116175136

Elveonora wrote: I remember that Omnibender had an entire page of his own dedicated to nature combinations theories and I recall to him Fire + Lightning = Explosion also made more sense.

All we know is that Deidara's clay is either made with Earth Release or the clay is infused with Earth Release chakra, but that doesn't mean Earth has to be part of Explosion. The page you refer still exists: User:Omnibender/Elemental recomposition table. He's just chosen not to post a prominent link to it on his userpage (where he could put a lot more information...)