Earth-Fissure Movements Associated with Fluctuations in Ground-Water Levels Near the Picacho Mountains, South-Central Arizona, 1980-84

摘要

The purposes of the study were to test the hypothesis that the opening, closing, and vertical offset of a major earth fissure can be correlated with water-level fluctuations in nearby piezometers and to use dislocation modeling of land-surface deformation near an earth fissure to characterize the mechanism and geometry of fissure evolution. The report presents the hypotheses of earth-fissure development, a description of the measurement techniques and instrumentation used in the study, and descriptive results. The correlation between horizontal movement of the fissure and water-level fluctuations in nearby piezometers and the results of dislocation modeling analysis are described.