Delta *

From SEG Wiki
Revision as of 12:00, 26 September 2020 by T012559 (talk | contribs) (created page)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to: navigation, search

was defined as [1]:

where indicate elements in the elastic stiffness matrix. It was used to derive :

which is the most critical factor for Polar anisotropy[2]:


  1. Thomsen, Leon (1986). "Weak elastic anisotropy". GEOPHYSICS 51 (10): 1954–1966. doi:10.1190/1.1442051. PDF version.
  2. Thomsen, Leon (2002). Understanding Seismic Anisotropy in Exploration and Exploitation. Society of Exploration Geophysicists. doi:10.1190/1.9781560801986.