National Assessment of Oil and Gas Quarter-Mile Cells - Paleogene System and Cretaceous-Tertiary Coal Beds of the Gulf Coast (Provinces 047, 048 and 049)

Cell maps for each Paleogene oil and gas assessment unit and each Cretaceous-Tertiary coalbed gas assessment unit were created by the USGS to illustrate the degree of...美国地质调查局（United States Geological Survey, USGS）针对每个古近纪油气评价单元以及每个白垩-第三纪煤层气评价单元生成了栅格地图，用以阐明……的程度。