Definition of Onlap. Meaning of Onlap. Synonyms of Onlap

- Onlap or overlap is the geological phenomenon of successively wedge-shaped younger rock strata extending progressively further across an erosion surface...
- The Taghanic event (Taghanic unconformity, Taghanic crisis or Taghanic onlap) was an extinction event that occurred about 386 million years ago during...
- paraconformities are called diastems. A buttress unconformity, also known as onlap unconformity, occurs when younger bedding is deposited against older strata...
- Ella Ø (Danish) The southwestern side of Ella Island in August 2007. An onlap of Devonian sandstone (right) on folded Cambrian-to-Ordovician rocks (left)...
- Cross-sectional diagrams illustrating the shift of sedimentary facies during transgression (onlap) and regression (offlap)...
- Cross-sectional diagrams illustrating the shift of sedimentary facies during transgression (onlap) and regression (offlap)...
- out significantly as it approaches the basin margins due to transgressive onlap. The Brushy Canyon Formation also contains small reef patches, ripple marks...
- marine facies are deposited over shallower facies, a succession called onlap. Regression is the situation in which a coastline moves in the direction...
- onlap, and onlap of overlying strata". Similarly, a type 2 sequence boundary is "marked by subaerial exposure and a downward shift in coastal onlap landward...
- into two sections, the Upper Gault and the Lower Gault. The Upper Gault onlaps onto the Lower Gault. The Gault Formation thins across the London Platform...