Page 242 - Origin and Prediction of Abnormal Formation Pressures

214 v.I. ZILBERMAN, V.A. SEREBRYAKOV, M.V. GORFUNKEL, G.V. CHILINGAR AND J.O. ROBERTSON JR.

II1. End Late Permian

C~2 Zone of weakness
I1. Middle Nikitov Fm., Early Permian

P I =' L.
033

C32

C3"
C~
I. End Late Carboniferous

C33

C32

C3 ~
C2

Legend"
• Stratigraphic boundaries ~ Faults

[~ Erosion boundaries ~ Salt
Fig. 9-3. Salt-plug evolution in the southeastern DDB. (Modified after Zilberman and Chernyakov, 1981.)