To my knowledge there are following damage types:
* Physical
* Fire
* Cold
* Shock
* Magic
* Poison
* Disease
Questions:
* Does weapon elemental enchantment get mitigated by Spell Resistance?
* Does poison/disease damage get mitigated by Spell Resistance? If not, what mitigates it?
* Each elemental enchantment has special effect when it procs, does magic damage one have anything special? (
http://forums.elderscrollsonline.com/discussion/71731/elemental-damage-types)