crystalline rock उदाहरण वाक्य

Some 50 million years later, an enormous volcanic complex erupted through the granite and left behind volcanic ash, lavas and crystalline rocks.
In this section the mountains are composed principally of crystalline rocks, and their heights are inconsiderable when compared with those of the northern Andes.
Above this line, known as the Fall Line, crystalline rocks from the Piedmont Plateau began to break down, and streams carried the tiny crystals seaward.
It looked at first just like a partially crystalline rock, but the closer they looked they realized it was almost pure plagioclase, meaning it was anorthosite.
The Brent Crater : First recognized in 1951 from aerial photographs, the crater is a circular depression about two miles in diameter formed in Precambrian crystalline rocks.

Steep contacts between the thick basal breccia of Mount Silverthrone and older crystalline rocks of adjacent peaks suggest that the breccia is part of a caldera-fill succession.
The next following harder strata have been sufficiently eroded to disclose the core of underlying igneous and metamorphic crystalline rocks in about half of the domed area.
The observed dips at least suggest that Tassajara Hot Springs issue at a locality where Arroyo Seco crosses a zone of intense pressure in the underlying crystalline rocks.
In Greece, Brodsky has found that hot springs are fueled not by a magma chamber but by changes in the pressure of fluids coursing through underlying crystalline rocks.
The Paasselk?impact occurred about 231 million years ago ( Carnian time stage of the Triassic ) and affected Paleoproterozoic crystalline rocks and some overlying sandstones of the Baltic Shield.