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自1978年3月,在Fresmout谷(F谷)一口井中连续记录到水位资料.其靠近Garlock断裂带(G带)上的数条断层显示出有左旋位移和倾滑位移.水位差表明有断层从观测井和灌溉井间通过.4年间,记录到6次急剧的水位变化(脉冲),这些发生在2—4天以上的水位变化,幅度为15—30厘米,似断层蠕动的结果.在观测井南300米处的G带上可能有两种蠕动:(1)阶梯状的倾滑位移;(2)左旋位移.利用指数函数、反正切函数和斜余弦函数变化的位错模型分析了水位变化、压力分布和断层位移.结果表明,该断层上的单个蠕动事件的位移量在1厘米以内.1978—1982年期间,累计蠕变值为20-50毫米,这取决于使用模型的特殊性.
Water level data were continuously recorded in a well in the Fresmout Valley (F-Valley) since March 1978. Several faults near the Garlock fault zone (G-belt) show a left-lateral displacement and a dip-slip displacement.The water level difference indicates a fault From the observation well to the irrigation well, four drastic changes in water level (pulses) were recorded over a four-year period, with changes in water level over 2-4 days ranging from 15 to 30 centimeters, as a result of fault creep There are two kinds of peristalsis possible in the G band at 300 m south of the observation well: (1) Step-shaped dip slip displacement; (2) Left-handed displacement. Dislocation models using exponential, arctangent and oblique cosine functions were analyzed Water level changes, pressure distributions and fault displacements.The results show that the displacement of a single peristaltic event on the fault is within 1 centimeter, and the accumulated creep value from 1978 to 1982 is 20-50 millimeters, depending on the particularity of the model used Sex.