Fig. 490.—Special laboratory table set with a problem in geological mapping which is solved in [Figs. 47] and [48].
Fig. 491.—Three field maps to be used as suggestions in arranging laboratory tables for problems in the preparation of areal geological maps.
The list of questions given below is intended to indicate the nature of some of the problems which the student should be asked to solve in the preparation of each map. The numbers in parentheses refer to pages in this book where further information is given:—
Stratigraphical
1. Of the formations represented what ones are sedimentary and what igneous ([Chap. IV], [App. B])?
2. Which formations, if any, are separated by unconformities ([51-53])?