Mixed Siliciclastic-Carbonate Deposits - Scales and Heterogeneities

Explore the complexities of mixed siliciclastic-carbonate deposits in this comprehensive lecture. Delve into the various scales and heterogeneities of these sedimentary formations, examining their composition, distribution, and geological significance. Learn about the interaction between siliciclastic input and carbonate production, and how this interplay creates diverse lithological variations both vertically and laterally. Investigate different types of mixing processes, from bed to stratigraphic scales, and understand their implications for geological interpretation. Discover the challenges researchers face when studying these widespread yet understudied deposits. Gain insights into key aspects such as hydrodynamics, platform architecture, grain-size distribution, and tectonic influences on mixed systems. Examine real-world examples of shallow marine, deep marine, syn-rift, shelf-edge, and shelf-to-basin mixed systems. Consider the importance of these deposits in sedimentary geology, sequence stratigraphy, reservoir characterization, and trace fossil analysis. Enhance your understanding of mixed siliciclastic-carbonate systems and their significance in the geological record.

Intro
Mixed siliciclastic carbonate deposits: scales and heterogeneities
Structure
Siliciclastic system
Definition/classification of mixed sediments
Mixed sediments/deposits
Mixed terrigenous-carbonate sediments
Mixed systems (present-day)
Other types of mixing...
Scales of siliciclastic-carbonate mixing
Mixing processes
Grain shape
#1 - Hydrodynamics (mobility/settling)
#1 - Hydrodynamics (sorting)
Platform architecture
Base level
Grain-size distribution
Siliciclastic versus carbonate production and dispersal modes
Mixed deposits and tectonic activity
Lesson learned
Sedimentary important
Shallow marine mixed system
Deep marine mixed system
Syn-rift mixed system
Shelf-edge system
Shelf to basin mixed system
Terrestrial and carbonate sediment budgets
Mixed systems and sequence stratigraphy
What is the correct» interpretation?
Resevoir considerations
Trace fossils in mixed deposits
Petrophysical properties
Take away points
Questions?