Use "igneous" in a sentence

1. “It has its problems, but it’s firm ground, in fact solid igneous intrusions of billion-year old magma

2. When the tunnels were discovered the North Koreans claimed they were coal mines, although they were excavated through igneous rock that the Communists painted black

3. castigating his body with igneous orbs

4. Over an extensive area, the soil consisted of that igneous gravel called "tuff," reddish in color as if made from crushed bricks

5. And behind the last row of sheds is the back acre known as “The Lab”: a scrabbly emptiness sheltered on all sides by man-made dunes whose inner slopes, scorched an igneous black, are dotted at all hours with dozens, sometimes hundreds, of the local gulls

6. Devils Tower in Wyoming, USA, was formed as an underground intrusion of igneous rock more than 50 million years ago

7. —Rocks supposed to have been produced by igneous action in the depths of the earth

8. —, on igneous action, as deduced from the appearance of crystals, &c

9. —, on the analogies between modern igneous rocks, and the so-called primary formations, xlv, 104

10. —, deductions from the igneous theory of, J

11. , applications of the igneous theory of the earth, xxxviii, 68; xxxix, 90

12. —, igneous theory of the earth, remarks on, xv, 384; xvi, 351