a whole big pile of it? And she was able to snap the rope that tethered the balloon (with super strength!) because why, precisely? Listen, I'm not trying to be a jerk about this (although it does come naturally to me) but would it have killed them to at least honor the continuity within their own story?
Also, the belt is a rare artifact from a now-extinct and possibly extraterrestrial civilization but Professor Lang the archaeologist (who discovered the damn thing) thinks it should be destroyed. He's probably gonna head back down there right now and blow up the giant chia pet, Taliban-style!