A meta-study of relationships between fluvial channel-body stacking pattern and aggradation rate: Implications for sequence stratigraphy

作者：Colombera Luca^*; Mountney Nigel P; McCaffrey William D

来源：Geology, 2015, 43(4): 283-286.

DOI：10.1130/G36385.1

A quantitative comparison of 20 literature case studies of fluvial sedimentary successions tests common assumptions made in published models of alluvial architecture concerning (1) inverse proportionality between channel-deposit density and floodplain aggradation rates, and (2) resulting characteristics of channel-body geometries and connectedness. Our results do not support the relationships predicted by established stratigraphy models: the data suggest that channel-body density, geometry, and stacking pattern are not reliable diagnostic indicators of rates of accommodation creation. Hence, these architectural characteristics alone do not permit the definition of accommodation-based "systems tracts" and "settings", and this calls into question current sequence stratigraphic practice in application to fluvial successions.

• 出版日期2015-4