Resumen de The structure of the Offshore Niger Delta .
C.D. Connors, B. Radovich, A. Danforth, S. Venkatraman
We present a new analysis of the linked gravity-driven deformation in the Tertiary Niger Delta. On the shelf, the fundamental detachment surface sits at over 11 km subsea and shallows to 7 km in the toe of the delta. The inner slope is both translating and accommodating shortening from updip extension, and exhibits a ductile and complex shale response. The deepwater contractional toe of the delta is primarily a brittle fold-and-thrust belt of imbricate fault-bend, fault-propagation folds, and shear fault-bend folds. Growth commenced in the late Oligocene, and continues to the present day on some structures.
