There are five principal lines of volcanic activity.
It would therefore be again burst through in certain places, which would long continue to be orifices of discharge, and thus the original fracture would determine a line of volcanic activity.
There are also some isolated centres of volcanic activity, such as Iceland.
During a pause in volcanic activity, beds of limestone with marine shells were deposited.
Ghana received a Millennium Challenge Corporation (MCC) grant in 2006, which aims to assist in transforming Ghana's agricultural export sector.
Import restrictions and inefficient resource allocations have led to periodic shortages of basic goods and foodstuffs.
Farther south, in the territory of the United States, a number of grand volcanic mountains exist, some of which are probably still active, for geysers and other manifestations of volcanic activity abound.
They still, indeed, appear as if recent, though there are to-day no signs of volcanic activity anywhere on this island.
The changes in sea levels were not confined to the immediate centre of volcanic activity, but extended as far north as Porto Rico, and it was believed that the seismic wave would be found to have altered the ocean bed round Jamaica.
It may be remarked further that, from the Mesozoic period down to the present, the Pacific borders of America have been the scene of volcanic activity far in excess of what has been experienced on the Atlantic sea-board.
Although volcanic action has long ceased on the American sea-board, we note that in Greenland, as in the west of Scotland and north of Ireland, there is abundant evidence of volcanic activity at so late a period as the Tertiary.
I have attempted to show how palagonite is formed on a large scale in the case of such submarine displays of volcanic activity.
It would seem that all the beds here exposed were originally horizontal, and were tilted up during the disturbances accompanying the outbursts of volcanic activity.
Such springs, according to this view, being the survivals of volcanic activity, originate in the depths of the earth’s crust and bring water to the surface for the first time, not deriving it from infiltration.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "volcanic activity" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.
