有限长度的二维倾斜断层重力异常正演表达式的推导

摘要

A precondition for deducing the formula of forward modeling gravity anomaly profile by inclined fault (two-dimension geological body),is that the inclined fault extends to the infinite distance along the profile's positive direction.However,no such fault exists in nature.We give the formula of forward modeling gravity anomaly profile by the inclined fault which extends to a finite distance.The range of the'finite distance'is deduced.The difference between extending to infinite and finite of the two formulae is also given here.%二维倾斜断层重力异常正演表达式的推导,前提条件是倾斜断层沿断层方向延伸至无穷远处,而这种情况在现实中并不存在.本文给出了倾斜断层沿延伸方向至有穷远处的重力异常剖面正演表达式,论证了“有穷远处”这一常数的取值范围,同时分析比较了“延伸至无穷远处的倾斜断层”和“延伸至有穷远处的倾斜断层”重力异常剖面正演表达式的异同之处.