sometimes called neo-thrash metal, post-thrash and power groove, is a term sometimes used to describe a derivative of thrash metal, which took influence from hardcore punk and traditional metal. The sub genre took its current form during the early 1990s
Albums such as Exhorder's Slaughter in the Vatican (1990), Pantera's Cowboys from Hell (1990),] and Sepultura's Arise (1991) first incorporated groove-based rhythms into thrash metal.
However, it wasn't until later albums like Exhorder's The Law (1992), Pantera's Vulgar Display of Power (1992), Sepultura's Chaos A.D. (1993), White Zombie's La Sexorcisto: Devil Music, Vol. 1 (1992), Overkill's I Hear Black (1993) and Machine Head's Burn My Eyes (1994) that groove metal took its pure form.