Pseudomatrix

Pseudomatrix, as defined by Bill Dickinson in 1970, is the term for lithic fragments that have been deformed to become (part of or exclusively) a traditional sandstone matrix. This is formed when a lithic-rich sandstone is compacted. The compaction is usually more effective on the (typically) weaker lithic fragments in comparison to the stronger, coarser-grained framework grains.[1]

References
  1. Dickinson, William R. (1970). "Interpreting detrital modes of graywacke and arkose". 40. Journal of Sedimentary Petrology: 695–707. Cite journal requires |journal= (help)
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