Brazilian/American thrashers Sepultura have completed recording their new album for a tentative October release via Nuclear Blast Records. The Cd was tracked over a 40-day period at producer Ross Robinson's (Korn, Limp Bizkit, Slipknot) studio in Venice, California and will be mixed and mastered by co-producer Steve Evetts, who previously worked with Sepultura on the "Nation" (2001), "Revolusongs" (2002) and "Roorback" (2003) albums, in addition to having collaborated with Ross on a number of other projects in the past.

The follow-up to 2011's "Kairos" will contain nine songs, including "The Age Of The Atheist", "Tsunami", "The Vatican" and "Trauma Of War", and two bonus tracks (covers of Death's "Zombie Ritual" and a track from the Brazilian group Chico Science E NaÇÃO Zumbi). The Cd will also feature a guest appearance by former Slayer drummer Dave Lombardo.

Sepultura guitarist Andreas Kisser recently stated about the upcoming Cd: "I think this album is one of the heaviest albums we ever did. We want to bring the Sepultura live attitude to the studio and with Ross we achieved that more than any other album, it sounds very alive, the performances are at their best. But we have one specific song that is more dramatic, clean but heavy and dark. The song is called 'Grief', which had the nickname 'Balada'. It is a song that starts with clean guitars in a way that we never attempted before, I think it was our biggest challenge on this album, regarding all the instruments and it came out amazing."

Regarding the contributions of Sepultura's new drummer, Eloy Casagrande, to the new album recording sessions, Kisser said: "Eloy is one of the great drummers of the world. It's amazing to see him playing with such energy and power. He brought a new level of energy and possibilities to our music. I wrote crazy riffs on the guitar that was no problem for him to work something even crazier on drums. Heavy parts with lots of double bass and fast drum fills. We wrote one of the best Sepultura albums together. You all will hear this monster behind the drumsticks. He killed on the recording sessions and it will be awesome to perform these songs live on stage."

Sepultura's upcoming Cd will mark the first time the band will have recorded an album outside Brazil since "Against".

The reunion between Sepultura and Robinson was first suggested by Monte Conner, the former Roadrunner Records A&R chief who is now the head of Nuclear Blast Entertainment, a U.S. partnership with Nuclear Blast owner Markus Staiger.

Robinson produced Sepultura's classic "Roots" album in 1995. Released in February 1996 by Roadrunner, it was the band's last studio album to feature founding member and vocalist Max Cavalera.

"Roots" sold more than 2 million copies worldwide and was certified gold in the United States by the Recording Industry Association Of America (Riaa) for sales in excess of 500,000 units.

Sepultura has spent most of the past two years on tour in support of its 12th studio album, and Nuclear Blast Records debut, "Kairos", which hit stores in July 2011.