Depth Estimation of Potential Field by Using a New Downward Continuation Based on the Continued Fraction in Space Domain

Abstract Depth estimation of potential field data is a powerful tool for geologic source interpretation. It can be implemented by using downward continuation method based on normalized algorithm. However, when several geological bodies with different burial depths exist in the research area, calculated depth usually tends to average depth. To overcome this limitation, we proposed new relationship between Taylor series and continued fraction space domain. Theoretically, it obtain singular (quasi‐singular) point directly, which indicates position source. In practical applications, only need calculate from original level an expected maximum The absolute value so that range. We used synthetic models test our obtained satisfactory results. advantages were illustrated comparing total gradient method. Finally, applied data, results agreement previous This high resolution, accuracy estimation.