Lassen Peak, some wise men believe, is the last exhibit of activity in the dying volcanism of the Cascade Mountains.
The observatory was built for the special purpose of studying the pit of fire, the risings and fallings of whose lavas bear a relationship toward the volcanism of Mauna Loa which is scientifically important, but which we need not discuss here.
The large granite boulder brought from afar and left near the west rim of the Grand Canyon with thousands of feet of rhyolite and other products of volcanism beneath it is alone sufficient proof of that.
Manned and unmanned planetary explorations, beginning in the late 1960's, have furnished graphic evidence of past volcanism and its products on the Moon, Mars, Venus and other planetary bodies.
Thus, active volcanism is taking place, at present, on at least one planetary body in addition to our Earth.
Significantly, major earthquakes also occur along these belts, indicating that volcanismand seismic activity are often closely related, responding to the same dynamic Earth forces.
Volcanoes and volcanism are not restricted to the planet Earth.
However, it should be emphasized that the short-term hazards posed by volcanoes are balanced by benefits of volcanism and related processes over geologic time.
We may truly characterize the earth's volcanism as being qualitatively sulphurous.
As we found volcanism to be a macrotelluric manifestation of functional sulphur, we find in the process of snow-formation a corresponding manifestation of functional phosphorus.
That the response in a place like the Solfatara is what we have seen it to be, is the result of an extraordinary lability of the equilibrium between gravity and levity, a characteristic appertaining to the earth's volcanism in general.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "volcanism" in a variety of sentences. We hope that you will now be able to make sentences using this word.
