Estimating the location of a causative body from a self-potential anomaly using 2D and  3D normalized full gradient and Euler deconvolution

Petek SINDIRGI; Şenol ÖZYALIN

Article Details

Estimating the location of a causative body from a self-potential anomaly using 2D and 3D normalized full gradient and Euler deconvolution

Authors:

Petek SINDIRGI | Şenol ÖZYALIN

Publisher:

TUBITAK

Journal:

Turkish Journal of Earth Sciences 2019 Vol.28 Issue 4, pp.640-659

Document Type:

Article

Publication Date:

7/2019

Document Language:

English

Document ID (Org No.):

2000731021

Frequency:

Bimonthly

eISSN:

1303-619X

pISSN:

1300-0985

Abstract:

 

Changes in the size and depth of sources greatly affect self-potential (SP) anomalies. Therefore, it is important to determine  the location of the source accurately. In the present study, applications of the normalized full gradient (NFG) method and Euler  deconvolution (EUD) were described to determine the location of the sphere-like SP body as complementary approaches to other  optimization algorithms. The NFG and EUD methods were tested on synthetic, noise-free, and noisy anomalies caused by sphere-like  models in two-dimensional (2D) and three-dimensional (3D) cases. Subsequently, the methods were applied to real field data. The  importance of the present study lies in the fact that it is the first 3D application of these methods to the SP anomaly caused by the  sphere-like model in the literature. In order to determine the optimum harmonic number in the NFG method, a new criterion was used  instead of the usual trial-and-error method, providing more reliable selection possibilities. In a similar way, average values were used  to determine the window size accurately in the EUD method. The test results of the synthetic and real field models were satisfactory.  They showed that both methods are applicable to determine the location of sphere-like structures, such as ore deposits, in self-potential  surveys.

Article Details

Estimating the location of a causative body from a self-potential anomaly using 2D and 3D normalized full gradient and Euler deconvolution

Authors: Petek SINDIRGI | Şenol ÖZYALIN

Publisher: TUBITAK

Journal: Turkish Journal of Earth Sciences 2019 Vol.28 Issue 4, pp.640-659

Document Type: Article

Publication Date: 7/2019

Document Language: English

Document ID (Org No.): 2000731021

Frequency: Bimonthly

eISSN: 1303-619X

pISSN: 1300-0985

Issues

Authors:

Petek SINDIRGI | Şenol ÖZYALIN

Publisher:

TUBITAK

Journal:

Turkish Journal of Earth Sciences 2019 Vol.28 Issue 4, pp.640-659

Document Type:

Article

Publication Date:

7/2019

Document Language:

English

Document ID (Org No.):

2000731021

Frequency:

Bimonthly

eISSN:

1303-619X

pISSN:

1300-0985