erosion surface

noun

Geology.

1. an eroded land surface, especially one that is nearly flat and featureless.

Example Sentences

As with many other classes of ores, it was first assumed that these processes were related to the present erosion surface; but it is now known that concentration happened long ago under conditions far different from those now existing.

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Where the old erosion surface pitches below later sediments, the ores pitch with it, and therefore do not follow the present topography.

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When this fact of secondary enrichment was discovered, it was naturally assumed that the process was related to the present erosion surface and to present climatic and hydrologic conditions.

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They vary with the climatic conditions which obtain on the erosion surface.

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Not only is it necessary to relate the secondary enrichment of copper deposits to the erosion surface, present or past, but by a study of the conditions it must be ascertained how closely erosion has followed after the processes of enrichment.

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