Record Display for the EPA National Library Catalog


Main Title 3-D Structural Geology A Practical Guide to Quantitative Surface and Subsurface Map Interpretation / [electronic resource] :
Author Groshong, Richard H.
Publisher Springer Berlin Heidelberg : Imprint: Springer,
Year Published 2006
Call Number QE500-639.5
ISBN 9783540310556
Subjects Geography ; Geology ; Geology, Structural
Internet Access
Description Access URL
Edition Second Edition.
Collation XVI, 400 p. online resource.
Due to license restrictions, this resource is available to EPA employees and authorized contractors only
Contents Notes
Elements of Map-Scale Structure -- Location and Attitude -- Structure Contouring -- Thickness Measurements and Thickness Maps -- Fold Geometry -- Cross Sections, Data Projection and Dip-Domain Mapping -- Properties of Faults -- Faulted Surfaces -- Dip-Sequence Analysis -- Quality Control -- Structural Validation, Restoration, and Prediction -- Direction Cosines and Vector Geometry. Geological structures are three dimensional, yet are typically represented by, and - terpreted from, outcrop maps and structure contour maps, both of which are curved two-dimensional surfaces. Maps plus serial sections, called 2½-D, provide a closer approach to three dimensionality. Computer technology now makes it possible for geological interpretations to be developed from the beginning in a fully three dim- sional environment. Fully 3-D geological models allow significantly better interpre- tions and interpretations that are much easier to share with other geologists and with the general public. This book provides an overview of techniques for constructing structural interpretations in 2-D, 2½-D and 3-D environments; for interpolating - tween and extrapolating beyond the control points; and for validating the final int- pretation. The underlying philosophy is that structures are three-dimensional solid bodies and that data from throughout the structure, whether in 2-D or 3-D format, should be integrated into an internally consistent 3-D interpretation. It is assumed that most users of this book will do their work on a computer. C- sequently, the book provides quantitative structural methods and techniques that are designed for use with spreadsheets, mapping software, and three-dimensional c- puter-graphics programs. The book is also intended to provide the background for understanding what interpretive software, for example, a computer contouring p- gram, does automatically. Most techniques are presented in both a traditional format appropriate for paper, pencil, and a pocket calculator, and in quantitative format for use with spreadsheets and computer-graphics or computer-aided-design programs.