oa Evidence for Top Shuaiba Exposure and Incision in Block 5, Offshore Qatar, and Regional Consequences

An integrated subsurface data set of core, vertical and horizontal wells and seismic has provided evidence for the presence of karstification and quartz sand filled platform incision at the top of the Shuaiba Formation in offshore Qatar. These observations have significant implications for the late Aptian palaeogeography and related understanding of the distribution of late Aptian/early Albian siliciclastics in the region. In addition, it provides a Late Aptian reference curve for the Arabian plate.