The ICS is still discussing which geological section and biostratigraphic marker will be used to define the base of the 10th Cambrian stage.

They have piled up beneath me like a geological section.

He returned to Spain with a variety of geological sections, relief models, a geographical clock, and the principles of the savings bank project.

In 1817 he drew a remarkable geological section from Snowdon to London.

Lines of geological section are shown upon the chain dotted lines A-A' and B-B'.

In the geological sections, they sometimes brought me to a standstill.

Usually the aim is correlation, demonstrating that a particular horizon in one geological section represents the same period of time as another horizon at some other section.

He was also chairman of the geological section of the International Scientific Congress held in Europe in 1911 as a tribute to his important contributions.

They may also have microscopical and geological sections.

Darwin attended the geological section which featured a talk by Robert Chambers on ancient beaches.