Sedimentology and Stratigraphy Quiz

What are the main types of markings discussed in the introduction to sedimentology and stratigraphy?

• Volcanic marks and tectonic marks

• Soul marks and surface marks

• Biological marks and chemical marks

• Erosional marks and depositional marks

What is a characteristic feature of flute casts?

• They have a flat surface

• They are found only in deserts

• They are pointed up current

• They are always circular

How do groove casts differ from flute casts?

• Groove casts indicate a specific flow direction

• Groove casts are formed by biological activity

• Groove casts do not indicate a specific flow direction

• Groove casts are only found in volcanic rocks

Which type of tool mark is formed by saltating grains?

• Prod marks

• Bounce marks

• Roll marks

• Brush marks

Which of the following is NOT a type of tool mark discussed?

• Bounce marks

• Brush marks

• Prod marks

• Flame marks

What causes the formation of mud crack casts?

• Drying and cracking of mud followed by sand infill

• Erosion by wind

• Volcanic activity

• Biological burrowing

What is a key feature of load casts?

• They are only found in desert environments

• They are bulbous features at the base of sandstone beds

• They are formed by volcanic eruptions

• They are formed by biological activity

What environment do rail and swash markings indicate?

• Beach

• Forest

• Desert

• Mountain

How are rain pits most commonly preserved?

• As biological fossils

• As volcanic ash layers

• As casts on the base of sand beds

• As depressions on the surface

What do rain, hail, and spray pits indicate about the environment?

• A deep marine environment

• A sub-aerially exposed environment

• A glacial environment

• A volcanic environment