I don't think that's a split planchet. The weight is still fairly normal. If it was a split planchet, the weight of your coin would be reduced by a ton. Just severe road rash here, PSD (Post Strike Damage). Not an error coin. It's a spender.
Not a Doubled Die Obverse. Just glare from your lighting.
It's time to do your own research on your own. We like answering your questions, but you really need to do your part too. I'll include some very helpful links.
For error coins: www.error-ref.com
For Doubled Dies: www.doubleddie.com www.coppercoins.com www.varietyvista.com