What is "upthrusts"

Usage examples of "upthrusts".

The first of the jagged upthrusts coincided with the edge of her chart, so she settled the skimmer on the largest promontory and got out.

The landing site was visible as a rocklined square in the midst of tossing vegetation that pushed against rocky upthrusts of what had once been one of Demeathorn's myriad volcanoes.

Dramatic striations of rock and great upthrusts of ancient pumice testified to the terrific volcanic activity of the past millions of years.

The radiance fell soft over ice, rocky upthrusts, scars, and pockmarks.

Shapes hunched among them, low domes, pentagonal upthrusts, helices, congeries.

Upon the deck, near the mainmast shrouds I stood, one hand upon them to steady me, my eyes out upon the sea, its dark, huge waves lifting like great upthrusts of black glass, ragged along the breaking edge.

Wind, rain, and blown sand hone the edges of the jagged upthrusts of rock, and find the weak places to hollow them away.

He glanced out the window, past the bay, toward the few jagged upthrusts of rock that marked the remains of Ragged Island.

Even now after a dry, fire fearful summer, the surging, circular upthrusts of splashing water only a few feet out from the bank indicated turbulent depth.

Once they raised the sail, oars came inboard and they went on westerly, following the forbidding coast a mile or so out, for there were white streaks of foam that told of jagged concealed volcanic upthrusts of rock nearer the shore.