Word usage examples
Vulcanic lake, the dead sea: no fish, weedless, sunk deep in the earth.
Leaving the cripple ablaze, settling, and pouring volcanic black smoke from the flammable cargo, he swung around in a long approach to what looked like a big troop Carrier, by far the fattest target in sight.
These relics included an enclosure of coral blocks marking the outlines of a rectangular building which, Emory and Finney considered, showed similarities to some Tongan structures, and basalt adzes which must have come from a high volcanic island, since basalt does not occur naturally on low atolls.
Sinclair objected that the mortar was made of andesite, a volcanic rock not often found in the deep gravels at Table Mountain.
Medium grey andesite, an igneous volcanic rock, speckled with crystals of dark minerals, knobbed with hard protrusions.
And, of course, there was the empty space for Bazil Broketail of Quosh, lost with his dragonboy in the volcanic doom of Heruta.
He saw, for one instant, the massive cliffs of ice glittering like volcanic glass in iron twilight and below them the beveled and faceted jewel face of a shallow antigrav dome closing in all the valley beneath.
Land area was scant, isolated volcanic tips thrust above the endlessly rolling seas, but the location of the planet saved long and tedious blinks from that sector of space back into Empire central.
It turned out that under the western United States there was a huge cauldron of magma, a colossal volcanic hot spot, which erupted cataclysmically every 600,000 years or so.
Triassic red sand, acidic volcanics, pink feldspar, green chlorite, ironstone, grit, sand and silt.