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Limestones track global sea-level change & productivity

Posted on 09/01/2012

An article in "Sedimentology" by Pete Burgess and one of his ex PhD students Dave Pollitt (Chevron USA) will allow for more accurate predictions about the horizontal extent of limestone layers in oil and gas wells.  Geologists are interested in both the duration of limestone deposition and the lateral extent of these rock layers because they are vital in simulations of how water, oil and other fluids flow through subsurface reservoirs.  The extensive numerical modelling study, based on thousands of individual computer runs, helps to demonstrate how layer thickness variations, seen in limestone outcrops, can be linked to global sea-level fluctuations and changes in productivity within the host reef system.


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