Board Thread:Wiki Discussions/@comment-3238846-20140422105553/@comment-3279282-20140423195924

It says "A special Ninjutsu the Yonbi's Jinchuriki Roshi manipulates. A technique combined from Fire Release and Earth Release, that produces "lava" which completely melts all things."

ShounenSuki's translation's the same: http://naruto.wikia.com/wiki/Talk:Lava_Release#Is_corrosion_style_really_lava.3F.3F.3F