Filling of Topographic Relief in the Build-and-Fill Zone
May Occur during Sea-Level Rises and Falls - Most Common during Falls
Mixed Carbonate-Siliciclastic & Carbonate Facies Filling During Initial Sea-Level Rise
Filling of Topographic Relief - Summary
- Filling of relief by carbonates mostly during falls; phylloid algal and oolite facies are common
- Fast fall over mid-shelf/ramp position limits accommodation on highs; grains are redistributed to lows
- Controls are base level with accommodation limited to paleo-low areas and focus of currents in lows
- Siliciclastics may fill lows when sea level is low
- Siliciclastics, mixed carbonates/siliciclastics, and carbonates may fill lows during transgression
- Filling phase caps sequence to produce a laterally extensive thin sequence of even thickness with complex internal architecture
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Last updated May 2004
http://www.kgs.ku.edu/PRS/publication/2004/AAPG/Build-and-Fill/P2-03.html