Structural Landforms: Landforms Associated with Granitic Rocks, Faults, and Folded StrataUp to the end of the nineteenth century, landforms were viewed largely as expressions of the structure of the earth's underlying crust. But such interpretations were concerned for the most part with generalities and broad effects; the subtleties of structural factors became overshadowed first by cyclic explanations and then by the modern emphasis on process and climatic geomorphology. This book arose from the neglect of structural factors in geomorphological interpretation. Nowadays it is recognized that details of jointing and faulting, both past and present, of the stresses in folds, of past conditions of sedimentation, all play an important part in the determination of present landforms. Moreover, today's geomorphologists must think in terms not only of distribution—length and breadth—but also in terms of vertical and temporal change. The author brings this new thinking into Structural Landformsand the result is a book of great interest and importance to students of geography and geology, to teachers and professional geomorphologists. It is particularly rich in photographs and line figures, and includes an excellent bibliography. |
Contents
INTRODUCTION | 1 |
CHARACTERISTICS AND ORIGIN | 45 |
Other hypotheses of inselberg evolution | 55 |
Copyright | |
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adjacent Alpine Fault anticlines areas Basin bedding bedrock beneath boulders caused central clays compression corestones country rock crust cuestas Dartmoor debris depressions developed differential dislocation display domed inselbergs drainage eastern eroded evolved example exposed Eyre Peninsula fault scarps fault zone fault-line scarp Flinders Ranges folds forms fractures Geol geological geomorphology give rise gnammas gneiss gorge granite outcrops granitic rocks inselbergs instance joint blocks KILOMETRES Lake Torrens lamination land surface landforms major marginal mass massive METRES minor movements Mt Lofty Ranges Northern Territory northwestern Eyre Peninsula occur origin orthogonal joints Palmer parallel pattern plains planes plateau region relief residuals resistant ridges and valleys rift valleys rivers San Andreas sandstone sedimentary sediments sequences sheet structure South Australia southern strata streams stress subsurface weathering suggested synclines tectonic Twidale types uplands uplift vertical weather pits weathered granite weathering and erosion weathering front Western Australia wrench faults Zagros Mountains