Nomograms for geological problems

Abstract

Non-measured data must often be determined from collected data. It can be done among others with nomograms. A nomogram is a geometric expression of a relation; how this relation is given, is only of importance for the form of the nomogram. A nomogram must be simpler and swifter than calculation and construction. and is especially recommended, if the same problem arises frequently. The exactness must be determined above all by the exactness of the collected data. Special nomograms are constructed for different problems.