The Stratigraphic Organization of Incised-Valley Systems Associated with Relative Sea-Level Change

摘要: The most common form of incised-valley system develops during a lowering in base level associated with a fall in relative sea level. This form of incised-valley system provides the most complete, and at times, the only evidence of lowstand to early-transgressive deposition in shelf and/or shallow ramp depositional settings. Incised-valley systems of this type are characterized by a flu-vially-eroded, elongate paleotopographic low, generally larger than a single channel, which displays an abrupt basinward shift of facies at its base. The valley fill …