What is "jacketing"

Usage examples of "jacketing".

Matt Lamanna worked at both sites, and Josh Smith and Jason Poole oversaw the difficult and ultimately dangerous job of excavating, chemically stabilizing, jacketing, and moving the enormous bones that were emerging from the sauropod quarry.

What the team was doing—partly because of the sheer size of the individual bone specimens and partly because in some cases the bones could not be safely separated in the field—was excavating and jacketing huge blocks of rock and bone, some of them weighing in excess of eight hundred pounds.