50-100
Top Sand
To
Top Sand
Top Channel
Compound
To
Top Channel
Compound
Base Channel
Compound
To
Base Channel
Compound
Coal
to
Coal
Shoaling
Upward
Epi-Stratal
Unit
A Parasequence is a Basic
Epi-Stratal Unit, however, not all Basic Epi-Stratal Units are Shoaling
Upward Successions!
Therefore the Basic Building
Block of the Epi-members should be considered the
Stratal Unit not the Parasequence
A
heterolithic & cyclic succession of strata, typically 50-100 thick, bounded by stratal
surfaces