Hi John, I will be slabbing this. I can cut 69 inches so this is a baby. I don't that it's spalt. I will get a pic of leave. That should tell story. I only counted thirty rings, I don't think a tree that big non coniferous can grow that fast? Wide rings but rings within maybe? Need to cut chunk off split it, sand it to see a few things.
I think the center is mineral stained? Brown and black. The bark is weird, maybe half inch thick only. The leaves were shaped a little like alder but more spade like , not jagged either along edge.
Like to see pics of table.