Changes

==Example biofacies maps==

==Example biofacies maps==

The following figure shows biofacies maps of the study area in the Gulf of Mexico. They are based on the subdivision of the ''Glob alt'' depositional cycle into presandstone, sandstone, and postsandstone intervals. The importance of these maps is their relationship to lithofacies distribution for potential reservoir rock, seal rock, and [[source rock]]. Part A is a presandstone interval map, showing a basinward excursion of outer neritic and upper bathyal biofacies forced basinward by falling sea level Part B is a sandstone interval map in which the biofacies excursion is less pronounced, reflecting maximum lowstand at the turnaround from falling to rising sea level. Part C is the postsandstone interval in which the biofacies excursion is absent due to relative rise of sea level.

The following figure shows biofacies maps of the study area in the [[Gulf of Mexico]]. They are based on the subdivision of the ''Glob alt'' depositional cycle into presandstone, sandstone, and postsandstone intervals. The importance of these maps is their relationship to lithofacies distribution for potential reservoir rock, seal rock, and [[source rock]]. Part A is a presandstone interval map, showing a basinward excursion of outer neritic and upper bathyal biofacies forced basinward by falling sea level Part B is a sandstone interval map in which the biofacies excursion is less pronounced, reflecting maximum lowstand at the turnaround from falling to rising sea level. Part C is the postsandstone interval in which the biofacies excursion is absent due to relative rise of sea level.

==Interpreting the maps==

==Interpreting the maps==