1
GEOS 334
Test #2 Review
Be Able to Define
Facies
Lithofacies
Biofacies
Ichnofacies
Provenance
Micrite
Ooids
Sparite
Packestone
Pyroclastic flow
Epiclast
Orthochemical sediment
Oil Shale
Polymorphs
Bedload
Dissolved load
Suspended load
Barchan, Longitudinal, Parabolic, and Transverse Dunes
Deflation Pavement
Ventifacts












Be able to explain the following reaction:
o H2O + CO2 <---> 2H2CO3 <–->H+ + HCO3- <-->H+ + CO3-2
o CaCO3 <-–> Ca+2 + CO3-2
Compare the Folk Classification Scheme with the Dunham Classification scheme for carbonates
How are facies analysis performed?
Describe an alluvial fans morphology; How do proximal and distal areas relate?
What are the different types of fluvial systems?
Draw a meandering river system and label areas of erosion and deposition
How are levees formed? How are point bars formed?
Be able to identify environmental facies from idealized stratigraphic columns from alluvial, fluvial and
lacustraine environments
Lakes contain many features similar to other environments. What clues would you look for in the
sediments that would enable you differentiate between glacial and tropical lakes
Describe the changes in sedimentary texture and composition that are expected as a river system
changes from alluvial to braided to meandering. Address relative downstream changes in energy and
bedload differences.
Explain Transgression and Regression, draw a schematic of a transgressive sequence and one of a
regressive sequence. How does this apply to Walther’s law
Given a diagram be able to locate and name the different environments of deposition