T-R Sequences
(Embry, 1993)
Stratigraphic
Record Consists of Transgressive-Regressive Cycles (T-R Sequences)
T-R
Sequences are bounded by Transgressive Surfaces/Subaerial Unconformities/
& Correlative
Conformity
Based on
a distinct mappable surface
Primary Methodology Utilized by most
geoscientists in the subsurface to subdivide Sand- prone Marginal-marine Successions
Transgressive Deposits
Regressive Deposits
T-R Cycle Boundaries