Depth Estimation of Simple Causative Sources from Gravity Gradient Tensor Invariants and Vertical Component

ORUÇ B.

PURE AND APPLIED GEOPHYSICS, cilt.167, sa.10, ss.1259-1272, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 167 Sayı: 10
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1007/s00024-009-0021-4
  • Dergi Adı: PURE AND APPLIED GEOPHYSICS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1259-1272
  • Anahtar Kelimeler: Tensor components, gravity gradient tensor, invariants, depth estimation, POTENTIAL-FIELD DATA, SQUARES, TRANSFORMS, ANOMALIES
  • Kocaeli Üniversitesi Adresli: Evet

Özet

The gravity gradient tensor (GGT) is deduced from products of second-order derivatives of the gravitational potential. A new method based on the invariants of the GGT has been proposed in this research to interpret gravity data due to sphere, infinite horizontal cylinder and semi-infinite vertical cylinder. The method estimates the depth of these simple causative sources from the multiplication of the maximum of the gravity vertical component by the maximum value of the invariants I (1) to I (2) ratio. To show the reliability and correctness of the estimated depths on 3-D models, the method has been tested using theoretical data with and without random noise. In addition, I have applied the method to a field-data example in Texas, USA and the depth obtained by the present method is compared with those published in the literature.