#zircon is useful for fission-track cooling ages too -it's closure temperature is ~220°C (the temperature when the fission tracks are annealed away). John Garver's group at Union college (@geo_garver
) used ziron fission tracks to show that the same Adirondack rocks have been cooling since the late-Precambrian/Cambrian rifting of Rodinia.
#MinCup23 #zircon #Adirondack #UnionCollege

@larsibacken @classicalmusic @galantmusic

Saw #EnsembleJupiter earlier this month at #UnionCollege 🥰