Structural Geology of Rocks and RegionsWhen author George Davis conceptualized the cover illustration for the first edition of Structural Geology of Rocks and Regions, he wanted to emphasize that the human adventure of learning comes from doing; and that new insight springs from careful, detailed examination of field relationships, viewed at all scales from rocks to regions. He asked illustrator David Fisher to combine four photos into the single painting, you see here. The geologist is enveloped by challenging structural relationships of folded rocks in outcrop; the curvature of back and neck, torqued as eyes and brain move closer and closer to clipboard, is the classic language of geologic mapping. When George Davis and new co-author Steve Reynolds contemplated the cover illustration for the second edition of Structural Geology of Rocks and Regions, they asked: "Who else is in the picture?" Stepping back, and handing David Fisher a couple of additional photos, the scene suddenly changed. The original geologist who had been sitting on the outcrop recording data is now up and walking around, gathering new data. A second geologist has moved into the new foreground, mapping and sketching a system of small-scale imbricate faults. Again, the head is torqued to handle the requirements of fine description and careful mapping. Like so many structural geologists, she seems to thrive on visualization of three-dimensional relationships. |
Contents
Nature of Structural Geology | 4 |
Kinematic Analysis | 38 |
Dynamic Analysis | 98 |
Copyright | |
11 other sections not shown
Common terms and phrases
analysis angle Arizona axial surface axis bedding brittle circle cleavage compressive confining pressure creep cross sections crust crystal deformation diagram differential stress dike direction dislocation displacement distortion ductile ellipse fault surface Figure finite strain ellipse finite stretch fluid pressure folded layers foliation friction G. H. Davis geologic map Geological Society geometric granite hinge line horizontal instantaneous intersection kinematic layer-parallel limestone lineation lithosphere magnitude measured mechanisms metamorphic microcracks minerals movement mylonitic normal faulting North American plate orientation original outcrop parallel permission of Geological perpendicular Photograph by G. H. plate porphyroclasts principal stress Published with permission quartz Ramsay recrystallization regional relative ridge rock rotation S₁ sandstone sedimentary sense of shear shear fractures shear stress shear zone shortening simple shear slickenlines slip specimen stereographically strength strike and dip strike-slip faults Structural Geology stylolites subduction tectonic tectonites tensile thrust thrust faults tion transform faults vertical