Geology Question

  • Choose a type of physical weathering and explain how it works and what makes it a physical weathering process.


  • Choose a type of chemical weathering and explain how it works and what makes it a chemical weathering process.


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  • Explain the differences between the follow forms of sediment transport:


  1. Dissolved load


  1. Suspended load


  1. Bed load


  • What is the Reynolds’ number and what is it used to describe?


  • How do cross-laminae differ from planar-laminae?


  • How does trough cross-laminae differ from planar cross-laminae?


  • What controls the formation of trough cross-laminae vs. planar cross-laminae?


  • How do soft-sediment deformation features such as load, ball & pillow or flame structures from?


  • How does a flute cast differ from a tool mark?


  • What is the difference between supratidal, intertidal, and subtidal?


  • How do mud drapes form? In what environment would you likely find this feature?


  • Hummocky cross-stratification is usually created by what process?


  • What is wave base? How does fair-weather wave base differ from storm-weather wave base?


  • What distinguishes flaser bedding from wavy bedding from lenticular bedding?


  • What is the main control determining if a coastline will be tidal dominated vs. storm/wave dominated?


  • What depositional environment would you expect on a coastline that is dominated by tidal ranges greater than 4 m. Describe not only the environment, but detail on sediments and structures that would be expected as well.


  • What type of sediment and sedimentary structure would be expected in the following environment?


  1. Bay/Lagoon


  1. Dune


  1. Foreshore


  1. Upper Shoreface


  1. Middle Shoreface


  1. Lower Shoreface


  1. Place the depositional environments from 17 in the image below.



  • What are the three main controls on deposition of a siliciclastic coastline?


  • What is the cause of tides?


  • What are the two components that determine if a barrier island will form?


  • Abyssal plain sedimentation – what are the sources and controls?


  • What is a Turbidite?


  1. Where are they mainly deposited?


  1. Sketch a Bouma Sequence stratigraphic column of an idealized turbidite deposit.


  • Sketch a planar (map) view of a turbidite deposits in the shelf/slope/plain environments – label the type of sediments you would find at each location.




  • Explain or show the flow direction(s) indicated by the cross-stratification.


  1. What is the name of this cross-stratification?


  1. What depositional environment is this cross-stratification of?























  • Use the diagram below to answer the following:


  1. What is the following diagram called?


  1. What does it describe?


  1. Why does Clay/Silt behave in the way described on the diagram?











  • Sketch the general bed form of a sand ripple, label the following:
    1. Flow direction
    2. Stoss and Lee sides
    3. topset, foreset, and bottomset
    4. Attachment and Separation points
    5. Where erosion/deposition occur


  • Label the depositional environment above.


  • For each of the label, what sediment and structures would you anticipate depositing?


  • Does the above image show a barrier system that is prograding or retrograding?


  • For your answer in 30, what are the conditions that can cause this to occur?


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