Published in celebration of the Geological Society of America’s 50th anniversary, this 578-page volume presents the progress in geology from 1888 to 1938. Written to serve as a comprehensive summary, both for the generalist and the specialist, it explores the fundamental fields of geology, including physiography, glacial geology, oceanography, invertebrate paleontology, vertebrate paleontology, prehistoric archeology, paleobotany, stratigraphy, sedimentation, structural geology, pre-Cambrian, mineralogy, petrology, volcanology, geochemistry, general geophysics, seismology, ore deposits, petroleum geology, exploratory geophysics, and engineering geology.
Stratigraphy is the branch of geologic science that has to do with the definition and description of major and minor natural divisions of rocks, mainly sedimentary, and interpretation of their significance in geologic history. It involves determination of the sequence of rocks, both locally and in the general time scale, tracing their areal distribution, observation of lateral and vertical variations in their characters, correlation of equivalent but possibly widely dissimilar units, and, finally, study of conditions or geologic events that are involved in their genesis. There are no other branches of geology to which stratigraphy is not more or...