Jurassic-Cretaceous Extensional Basins of the Goliat Area, Barents Shelf.

Abstract

The present study is done to analyse the growth basin development of Jurassic-Cretaceous age in the Goliat field. There are three fault trends in Goliat area with TFFC having the longest history of activity and exhibits a stepped geometry which penetrates deep into the Pre-Permian strata. The MF1 fault involves the basement and shows reactivation which puts it in the category of First or Second Class fault. In the cross-sectional view a distinct contrast in fault geometry exists between the deeper and shallower stratigraphic level dividing fault geometry into two segments. The deeper segment (Intra Permian to Intra upper Triassic) shows planar faulting while the shallow segment (Intra Late Jurassic to Intra Late Cretaceous) has wedge shape geometry. Stratigraphic dating is used to obtain important information about the age of faulting and recognizing the syn sedimentary wedges. By analyzing the stratigraphic method the main fault activity can be ascribed an age of Late Jurassic and Early Cretaceous. The majority of faults terminate within the early cretaceous.