更多preglacial例句

1. The rocks are covered with residual clays, the product of long preglacial weathering.
2. It is a bit of preglacial landscape, showing the condition of the entire region before the Glacial epoch.
3. Many of the valleys of our present rivers are but patchworks of preglacial, interglacial, and postglacial courses (Fig. 366).
4. Rivers as large as the Mississippi and the Missouri were also more or less locally deflected from their preglacial courses.
5. The stream has not yet reached its preglacial profile, but it has almost reached it.