Some articles on intermediate volcanic rock, rock, volcanic rock:
... Andesite - an Intermediate volcanic rock Anorthosite - an igneous ultramafic rock composed predominantly of plagioclase Aplite - a very fine grained intrusive igneous rock Basalt - a volcanic rock of mafic ...
Famous quotes containing the words rock, intermediate and/or volcanic:
“All the junk that goes with being human
Drops away, hard rock wavers
Even the heavy present seems to fail
This bubble of a heart.”
—Gary Snyder (b. 1930)
“Complete courage and absolute cowardice are extremes that very few men fall into. The vast middle space contains all the intermediate kinds and degrees of courage; and these differ as much from one another as men’s faces or their humors do.”
—François, Duc De La Rochefoucauld (1613–1680)
“Each of us, even the lowliest and most insignificant among us, was uprooted from his innermost existence by the almost constant volcanic upheavals visited upon our European soil and, as one of countless human beings, I can’t claim any special place for myself except that, as an Austrian, a Jew, writer, humanist and pacifist, I have always been precisely in those places where the effects of the thrusts were most violent.”
—Stefan Zweig (18811942)