ABSTRACT

A series of geophysical maps of regional markers over the Grand Banks region of the Newfoundland Offshore Area have been constructed by the staff of the Canada-Newfoundland Offshore Petroleum Board (C-NOPB).

Present maps are a continuation of C-NOPB regional mapping project. The first phase was presented during CSPG Convention last year in Calgary.

The regional maps have been produced using seismic sections, industry and C-NOPB mapping and well data.

The maps cover the area between 44° to 48° north latitude and 46° to 50° west longitude and include Flemish Pass, Carson-Bonnition and South Jeanne d'Arc basins (Fig. I). Bathymetric, time structure, isopachous, isochronous, gravity and stratigraphic sequence maps are presented at a scale of 1:250 000.

Structural maps of Base Tertiary unconformity, Cenomanian unconformity and Tithonian unconformity have been produced. Isochronous maps have been constructed using the time structure maps. The stratigraphic sequence map illustrates the likely sequence of stratigraphic units that would be penetrated by drilling in different regions. Five interpreted seismic sections are also included. The sequence map and seismic sections assist in the representation of the 3-dimensional relationship of stratigraphic sequences of the area.

The package of geophysical maps, available from the C-NOPB office, provides a framework for both regional studies and prospect identification and should be useful in a wide range of studies.

End_of_Record - Last_Page 209-------