Photogeology and Regional Mapping

Photogeology and Regional Mapping covers the geological interpretation of aerial photographs, the compilation of the interpretations on to maps, the use of aerial photographs in the field, and the use of aerial photography for the production of the final geological map.
This book is organized into 10 chapters and starts with an introduction to the aerial photograph. The subsequent chapters deal with the properties of the aerial photograph, including the scale, parallax and their difference. These chapters also survey the process of stereoscopy, the stereoscopic vision, pseudoscopic vision, and setting up the aerial photographs. These topics are followed by discussions on interpretation of the aerial photographs encoded into a map. Other chapters describe the production of the photogeological map and field mapping with the use of aerial photographs. The last chapters consider the compilation of the encoded aerial photographs made into maps and the photogrammetry for geologists that explains the minor control plot, detail plotting, measurement of height differences using a stereometer. This book will be of value to geologists.

List of Plates Preface Acknowledgments 1 The Aerial Photograph How Aerial Photographs Are Taken Errors in Flying Various Uses of Aerial Photographs Special Types of Aerial Photographs Ordering of Aerial Photographs Handling of Aerial Photographs Print Laydowns and Mosaics 2 Some Geometrical Properties of Aerial Photographs Scale Parallax Difference in Parallax 3 Stereoscopy Stereoscopic Vision Viewing Stereopairs without a Stereoscope Pseudoscopic Vision Vertical Exaggeration Stereoscopes Transference of Principal Points Setting up the Aerial Photographs Adjustment of Stereoscopes 4 Interpretation — General Relief and Tone Factors Affecting the Photographic Appearance of Rocks Lineaments Learning to Interpret Photogeological Symbols The Status of Photogeology 5 Interpretation — Structural Bedding Dip Foliation Folds Faults Joints Lithological Boundaries 6 Interpretation — Lithological Generalized Photogeological Legend Sediments and Metasediments Intrusive Rocks Acid Basic Dykes Extrusive Rocks Basic Permeation Gneisses Autochthonous "Granites" Superficial Cover 7 Production of the Photogeological Map Annotation and Interpretation Techniques Unmetamorphosed Areas Regionally Metamorphosed Areas The Photogeological Map 8 Field Mapping with Aerial Photograph Equipment Preparing the Traverse Field Work Field Annotations Field Traverse Final Synthesis of Geological Data 9 Compilation Reliable Base Maps Available Photographic Compilation Unreliable Base Maps Available No Base Maps Available 10 Photogrammetry for Geologists Minor Control Plot Subsidiary Control Points D