GEOL 716: Variations in Sequence Stratigraphy University of South Carolina Spring 2006

1
GEOL 716 Variations in Sequence
StratigraphyUniversity of South CarolinaSpring
2006
Octavian Catuneanu, 2002
Professor Chris Kendall EWS 304 kendall_at_sc.edu
777.2410
2
Sequence Stratigraphy

• A framework of genetically related stratigraphic
  facies geometries and their bounding surfaces
  used to determine depositional setting

3
Sequence Stratigraphy
Subdivision interpretation of sedimentary
record using a framework surfaces seen in
outcrops, well logs, 2-D and 3-D seismic.
Include

• Surfaces of erosion non-deposition (sequence
  boundaries)
• Flooding (trangressive surfaces TS /or maximum
  flooding surfaces mfs)

This framework used to predict the extent of
sedimentary facies geometry, lithologic
character, grain size, sorting reservoir quality
4
Sequence Stratigraphy Base Level
5
Sequence Stratigraphy Base Level
6
Sequence Stratigraphy Base LevelControls
7
Sequence Stratigraphy Base LevelControls
8
Sequence Stratigraphy Base LevelControls
9
Transgression Regression
10
Transgression - Regression
After Catuneanu, 2002
11
Normal Regression
After Catuneanu, 2002
12
Forced Regression
13
Transgression
After Catuneanu, 2002
14
Terminations
After Catuneanu, 2002
15
Seismic Expression
After Catuneanu, 2002
16
Sequencessystemtractsetc
After Catuneanu, 2002
17
Fluvial Shoreface F. Regression
After Catuneanu, 2002
18
FallingStageSystemTract
AfterCatuneanu2002
19
RavinementNormalRegression
AfterCatuneanu2002
20
Flooding Surfaces
21
Flooding Surfaces
22
Regional ArchitectureofDepositional Systems,
System Tracts, Surfaces
After Catuneanu, 2002
23
Wheeler Diagram Regress/Trans Cycle
After Catuneanu 2002
24
Regional ArchitectureTransition ZoneFluvial
Shore
AfterCatuneanu2002
25
Coastal Erosion of Transgression
After Catuneanu, 2002
26
SequenceStratigraphyModelTree
After Catuneanu, 2002
27
Sequence Boundaries
After Catuneanu, 2002
28
Subaerial Unconformities
AfterCatuneanu2002
29
Formation of Subaerial Unconformity
After Catuneanu, 2002
30
Fluvial Shoreface Forced Regression Deposits
After Catuneanu, 2002
31
Correlative Conformity
AfterCatuneanu2002
32
Wheeler Diagram Regress/Trans CycleTemporal
Significance of A B Surfaces
After Catuneanu 2002
33
BasalSurfaceForcedRegression
AfterCatuneanu2002
34
Regressive SurfaceofMarineErosion
AfterCatuneanu2002
35
MaximumRegressive SurfaceofMarineErosion
AfterCatuneanu2002
36
Progradation of Coarsening Upward Succession
After Catuneanu, 2002
37
MaximumFloodingSurface
AfterCatuneanu2002
38
RavinementSurface
AfterCatuneanu2002
39
WithinTrendNormalRegressiveSurface
AfterCatuneanu2002
40
WithinTrendFloodingSurface
AfterCatuneanu2002
41
Hierarchies of Sequences
After Catuneanu, 2002
42
Superimposed Shoreline Shifts
After Catuneanu, 2002
43
Features of Shelf and Ramp
After Catuneanu, 2002
44
Lecture Ends!!

• And so to supper