...actually, most volcanoes too are the result of plate collision/plate tectonics. But that’s really another subject.
Also metamorphic rocks can have their mineralogical ‘clocks’ ‘reset’ by later periods of plate tectonic activity/mountain building, and so can appear to be younger than they actually are. However, as far as I know, none can be made to appear older than they actually are. And so one with a date of, say, 3.2 billion years, is at least that old. Make sense?
Subduction of water, granitic volcanics, a little time and you’ve got plate margin volcanos. You’ve got it!! As well with the blue schist, etc.