Sentence examples for parallel ridges from inspiring English sources

The folding of layers of sedimentary rocks with thicknesses of hundreds of metres to a few kilometres often leaves long parallel ridges and valleys termed fold belts, as, for example, in the Valley and Ridge province of Pennsylvania in the eastern United States.

The bluffs, he said, are peculiarly fluted with vertical, razor-sharp parallel ridges.

Very fine parallel ridges in scales may produce an iridescence by acting as diffraction gratings.

It consists of long, narrow valleys and parallel ridges aligned over a long distance.

This made them altogether different from the parallel ridges to the north.

Throughout much of their alignment, the Kunlun Mountains comprise two or three parallel ridges rather than a single crest.

The STM topography of polyfacetted gold micro- electrodes exhibits flat domains and regions with a number of different defects, whereas that of electrofacetted gold presents a parallel ridge-like structure of a few atoms height together with other types of defects.

The ancient color that some of these creatures appear to have had comes not from pigments, but diffraction gratings--parallel ridges that are spaced at about the wavelength of visible light.

In the watershed, there are a number of close-to-parallel ridges and valleys.

Where T is the average inter-ridge width representing the average distance between two parallel neighboring ridges.

The islands are all protrusions of parallel submarine ridges trending from the northwest to the southeast.