Upper Jurassic Smackover Stratal Relationships of the Little Cedar Creek and Brooklyn Fields and possible Embayment Wide Microbolite Buildups
Kyle L. Day
This study investigates the stratal relationships of a pure microbolite within the Upper Jurassic strata at the Little Cedar Creek Field (LCCF), and Brooklyn Field for the development of a refined exploration model of Smackover reefal buildups in the eastern Gulf Coast. During the Jurassic, southwestern Alabama was divided by Appalachian ridges into three sub-basins: the Conecuh Embayment, Manila Embayment, and the eastern extension of the Mississippi Interior Salt Basin. The LCCF and Brooklyn Field are located in the Conecuh Embayment of southeastern Conecuh County, Alabama, and are the largest oil fields discovered in the state of Alabama. Production from the fields is currently over 26 million barrels of oil (Bbl) and over 28 billion cubic feet of gas (bcf). The microbolite buildups at LCCF and Brooklyn Field formed in an inner ramp setting of the Upper Jurassic (Oxfordian) Smackover Formation.
AAPG Search and Discovery Article #90176©AAPG Mid-Continent Meeting, Wichita, Kansas, October 12-15, 2013