Watch the Rock Daddy - Rhythm online guitar lesson by Jeff Scheetz from Rock Solid
This rhythm has a real chunky eighth note feel. You will want to use a lot of distortion on this one, along with right hand palm muting. That is how you get the big sound - well, that and turning up really loud!
Lots of heavy bands have used this feel including Ozzy, Dokken, Ratt, and on back to Judas Priest and Black Sabbath. It is based around our E minor, so we have a lot of constant thumping on the open E string.