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Late Jurassic (Kimmeridgian) to Early Cretaceous (Valanginian) carbonate platforms exhibit "keep-up" and "give-up" types of growth in the Western Atlantic. Twenty seismic lines and four well ties delineate the shelf-edge geometries, depositional systems, and chronostratigraphy. Geometric relations together with paleontologic and lithologic facies data permit interpretation of the primary controlling factors on platform evolution.

Atlantic platform "keep-up" growth and development during successive tectono-eustatic fluctuations occur in two stages and vary directly with the supply of siliciclastics. Platform growth stages receiving siliciclastics prograde; those which do not aggrade. During stage I (Kimmeridgian), 8.1 km (5 mi) of margin progradation occurred...

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