post-depositional        
adjective  geology specialized (also postdepositional ) uk/ˌpəʊst.dep.əˈzɪʃ.ən.əl/ us/ˌpoʊst.dep.əˈzɪʃ.ən.əl/
 沉积后的
happening or existing after the formation of a layer of soil or rock
  Some of the variation in thickness is a result of post-depositional erosion.
 In some cases the sites were levelled by erosion or other postdepositional processes. 在某些情况下,这些地点会因为侵蚀或其他沉积后过程而被夷为平地。 
  - More examples
 - This flattening is not thought to have been the result of post-depositional processes.
 - The main contrast between the two localities is the degree of post-depositional alteration.
 - Initial classification suggests a variety of both pre- and post-depositional causal mechanisms.
 - Lake sediments are less prone to complications from post-depositional disturbances.