Geologic maps supply a wealth of information about the surface and shallow subsurface of the earth. The types of materials that are present in a location and the three-dimensional structure of the bedrock both can be gleaned from a clearly prepared geologic map. Geologists, civil and environmental engineers, land-use planners, soil scientists, and geographers commonly use geologic maps as a source of information to facilitate problem solving and identify the qualities of a region. Maps reveal the position of many types of natural hazards, indicate the suitability of the land surface for various uses, reveal problems that may be encountered in excavation, provide clues to the natural processes that shape an area, and help locate important natural resources. Suitable for lab courses in structural geology as well as field geology work, Spencer describes representative examples of features found on geologic maps and outlines procedures for interpretation and projection. Geometric techniques are explained using a step-by-step approach. Coverage of mapping methods includes tools that provide necessary data, such as Google Earth, GPS, GIS, LiDAR maps, drones, and aerial photographs. Challenging and engaging exercises throughout the text involve students in the mapping process and stimulate an appreciation of the extent and precision of information presented in geologic maps. Regional geology is an important component of lab and field mapping projects. As such, the Third Edition includes new maps of the Gulf of Mexico Coastal Plain, Rocky Mountain Front Range, Yellowstone region, Moab, Utah, Shenandoah National Park, and Hawai’i. A new chapter devoted to tectonic maps also broadens students’ exposure. Ed Spencer brings over 45 years of teaching experience to the text along with valuable insight and clarity into the interpretation and preparation of geologic maps.

The intent is to develop the users ability to interpret the landforms on any map or aerial photo. Assuming that the user has a basic understanding of topographic maps, aerial photographs, map symbols, contour lines, topographic profiles, and geologic cross-sections, questions are posed to foster a mental process in problem solving. Includes topographic maps that show the contour interval in feet as well as an appendix (Appendix A) of map name, location, scale, and contour interval for each exercise. Geologists, geology students and teachers focusing on Geomorphology.

The use of aerial photographs to obtain qualitative and quantitative geologic information, and instrument procedures employed in compiling geologic data from aerial photographs.

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.