Slices and array appending

[cal]

Just want to make sure I understand this properly:

I have a large dynamic array (whose elements are immutable) which 
only ever grows. I also have a whole lot of small slices into 
this array, the slices never change, and they don't span the 
entire contents of the array (they are just pieces).

Now if I append to the large array, and the runtime needs to 
re-allocate to accommodate the change in size, none of the pieces 
of the original array which are referred to by the slices can be 
freed, right? So I end up basically with two copies of the 
original large array, however the first version will now have 
little pieces missing from it (wherever the slices don't refer).

Is that correct?