octave chords?

I notice there's quite of use of "[octave chords]"

like in "Song 2" by blur for example:
The entire verse riff is nothing but chords composed of octaves.

Is there a name for that... beyond "octave chords"..?

I thought maybe they'd be "Double Stop Octaves; or Octave Double Stops"...
but they're not even 2 pitches from a chord.
They're just root plus octave (root + 8? is that what the formula would be written as?)

I was just curious because I'm making a chart of all chord formulas; and I was wondering what to call it; as compared to "Major" "minor;" "augmented;" etc

Originally Posted by: Whune
I was just curious because I'm making a chart of all chord formulas; and I was wondering what to call it; as compared to "Major" "minor;" "augmented;" etc

http://www.smithfowler.org/music/Chord_Formulas.htm
http://www.riddleworks.com/chords.html
http://www.filmscorerundowns.net/herrmann/chord_formulas.pdf
https://www.google.com/search?hl=en&safe=off&q=chart+of+all+chord+formulas&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&biw=1680&bih=907&um=1&ie=UTF-8&tbm=isch&source=og&sa=N&tab=wi&ei=SFrKT-riIoHg2gWypuXZCw

Have a look through those