upper crust造句怎么写

Which also shows that the trace elements in Heidaigou coal and its dirt are from the upper crust.

In the Songliao basin there occurred pre-rift volcanic rocks. Then brittle extension of the upper crust gave rise to a semi-graben rift basin.

The granitic magma is rising and diffusing with buoyancy and then in the form of diapire in upper crust which resulted in the extending orogeny.

The voluminous alkaline granites in the region were probably from the same magma source, but crystallized at upper crust depth.

Eton is a school that only the children of the upper crust can afford.

The building was originally constructed as a hotel for upper crust springs society, but has long since been converted into offices for lawyers, accountants and such.