Lemuria And Others (prev. Magma)

[vagabond]

As magma bubbles and molds
Fresh layers of earth
Dirt settles from the sky
Just like oceans to vapor.           a gravity-defying comparison.. i wondered if you could replace settle with some other word because oceans don´t really settle.. or maybe write something like "dust settles from the clouds/ like oceans vaporize to skies." the example isn´t great, just to explain what i see in those lines.

Fresh layers of earth
Endlessly cycle beyond life                  maybe "around" instead of "beyond". and for rhythm maybe "keep cycling" instead of endlessly cycle.
Just like oceans to vapor.
The carbon in our bones

Endlessly cycle beyond life               "cycles", since carbon is singular.   and, though it would interrupt the scheme i´d rather see "through" than "beyond".
Devoured, burned to dust
The carbon in our bones
Erased from history.             since the carbon doesn´t vanish (except maybe through nuclear fission or fusion, but i have no idea if that would be so) maybe "transformed to history"

Devoured, burned to dust
Nothing left to study
Erased from history
Entire civilizations lost                       entire civilizations almost reads a bit over-dramatic.. even when it´s true.. i´d want something like " words will fade away"

Nothing left to study
No Wildes, Wrights, or Wells
Entire civilizations lost
Tombs folded in time             would like present tense here (fold) . ok, then "tombs" would need to be a longer word.. graveyards?

No Wildes, Wrights, or Wells
Dirt settles from the sky
Tombs folded in time
As magma bubbles and molds                a one-syllable word for bubbles would be nice.. but i can´t think of one.

that form with the repeating lines (and i don´t know  if it has a name or if you invented it) is really pleasant to read.  
it´s as if the stanzas slowly spread forward, one layering over the other like magma. cool poem.