Scott A. Kinney Russell F. Dubiel Janet K. Pitman Lauri A. Burke 2012 <p><span>The U.S. Geological Survey (USGS) has created a comprehensive geopressure-gradient model of the regional pressure system spanning the onshore and offshore portions of the Gulf of Mexico, USA. The model was used to generate ten maps: five contour maps (Maps 1A - 5A) characterize the depth to the surface defined by the first occurrence of isopressure-gradients ranging from 0.60 psi/ft to 1.00 psi/ft, in 0.10-psi/ft increments, and five supporting maps (Maps 1B - 5B) display the spatial density of the data used to construct the isopressure-gradient maps. The boundary of the geopressure-gradient model represents the maximum extent of the calculated pressure-gradient data. The regional investigation, however, encompassed an area defined by the USGS Upper Jurassic-Cretaceous-Tertiary Composite Total Petroleum System Boundary, and the availability of offshore data. A description of the geopressure-gradient model, including related mathematical derivations, the data-quality control methodology, linear pressure interpolation calculations, and contouring algorithms is provided by Burke et al. (in press [a]; in press [b]); these references, as well as a summary of the geopressure-gradient model, are supplied in the&nbsp;</span><a class="internal-link" title="" href="http://www.datapages.com/gis-map-publishing-program/gis-open-files/geographic/files/distributionregionalpressureburke.pdf" target="_self" data-mce-href="http://www.datapages.com/gis-map-publishing-program/gis-open-files/geographic/files/distributionregionalpressureburke.pdf">online documentation</a><span>. &nbsp;</span></p> application/pdf en American Association of Petroleum Geologists Distribution of regional pressure in the onshore and offshore Gulf of Mexico basin, USA reports