3rd age Balrog vs Ancalagon the Black

Has anyone been struck by the similar descriptions of death between
Ancalagon (slain by Eärendil) and the 3rd age Balrog (slain by Gandalf):

both were slain on or over a mountain - and both broke the respective
mountain in their deaths ...

i wonder of Tolkien was conscious of one when he wrote the other ...?

Chris Hoelscher wrote:
> Has anyone been struck by the similar descriptions of death between
> Ancalagon (slain by Eärendil) and the 3rd age Balrog (slain by
> Gandalf):
> both were slain on or over a mountain - and both broke the respective
> mountain in their deaths ...
>
> i wonder of Tolkien was conscious of one when he wrote the other ...?

Not to mention the Balrog Glorindel slew -- a fight on a high place, a fall
into an abyss. No mention of any broken mountains in that fight, though.

--
Bill
"Wise fool."
Gandalf _The Two Towers_
(The Wise will remove 'se' to reach me. The Foolish will not!)