"carved off from" is correct and usable in written English.
You can use it to signify that something has become separated or detached from something else. For example: "The building was carved off from the main complex."
One large chunk of the region's transport was carved off from the MTA with the creation in 1989 of the Foothill Transit zone, covering much of the eastern part of the city.
The Land and Property Information unit, which runs the registry, already had been carved off from the Finance, Services and Innovation departmental "cluster", and for months the place has had the slide rule run over it by KPMG and Boston Consulting, with instructions from the NSW government to plump the registry for sale.
New York's NBC station reported last night that the peninsula including Brick, Normandy Beach and Seaside Heights (the kinda-awful, but kinda-fun, place where "Jersey Shore" was filmed) had been carved off from the mainland by Sandy's surge.
Free-wheelers carved off private plots from communes, sowed non-staple crops that were highly profitable in a growing black market, and returned to sidelines (animal rearing, handicrafts) that had been condemned as "capitalist" since the mid-50s.
Your duck is roasted rare, then, tableside, Otto carves off the breasts and legs.
Each party viewed the problem from a different perspective, and carved off a different piece of the puzzle.
The thigh meat can just be carved off the bone, or cut into chunks.
Myners maintained his view while he was a minister that there is no need to carve off investment banks from retail banks.
This high-speed railway opened in late 2011, cutting the journey from Paris to Zurich by 30 minutes – a similar amount of time that HS2 would carve off the commute from London to Birmingham.
One might think of mental processes as transpiring in fairly narrow regions of the brain (their core realization), and yet, Shoemaker suggests, it's not as though we could simply carve off those regions from all others and still have the mental state in question.
I stood in front of the open freezer door, a butter knife in my hand, carving off ice chips from a frozen block and crunching them between my teeth.
