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GLY 3202 C - Exam 3 Practice Questions and Answers 100% Pass
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GLY 3202 C - Exam 3 Practice Questions and Answers 100% Pass Which of the following mechanisms would be described as chemical weathering? - ANSWER-Acid rain dissolves limestone to leave holes. Which of these minerals is the most stable at the Earth's surface? - ANSWER-Quartz Which of these min...

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  • November 12, 2024
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GLY 3202 C - Exam 3 Practice Questions and
Answers 100% Pass


Which of the following mechanisms would be described as chemical weathering? -

ANSWER✔✔-Acid rain dissolves limestone to leave holes.


Which of these minerals is the most stable at the Earth's surface? - ANSWER✔✔-Quartz


Which of these minerals would be the least susceptible to weathering? - ANSWER✔✔-

Hardness of 6, poor cleavage.


True or false? Dissolved ions are transported into the ocean and re-precipitated as

mineral material by marine organisms. - ANSWER✔✔-True


What is a siliciclastic sedimentary rock? - ANSWER✔✔-A rock formed from inorganic

detrital grains.


How would you classify a rock made predominantly of quartz and feldspar detrital

grains? - ANSWER✔✔-Siliclastic


What is the difference between weathering and erosion? - ANSWER✔✔-Weathering

relates to the breakdown of rocks and erosion the transport of those materials.


Which grain size classification can be described as pebble, cobble or boulder? -

ANSWER✔✔-Gravel
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,How would you classify a sediment with framework grain sizes including fine sand

and cobbles? - ANSWER✔✔-Poorly sorted


Which of these sorting classifications has been transported and re-worked the least? -

ANSWER✔✔-Poorly sorted


How would you classify a sediment containing many elongated grains with very sharp

corners and edges? - ANSWER✔✔-Angular


Which of the sediments described below has been transported the furthest? -

ANSWER✔✔-Well sorted small round grains.


What sedimentary feature is formed by ice-carried blocks scraping along a rock surface?

- ANSWER✔✔-Striations


In which sedimentary environment is gravity the most important influence on sediment

transport? - ANSWER✔✔-Cliff face


Which particle would be more easily eroded and transported by wind? - ANSWER✔✔-

Small less dense particle.


Which type of sedimentary layering is formed by the lateral migration of ripples along a

river bed? - ANSWER✔✔-Cross-bedding


Which type of sediment transport moves large volumes of material very rapidly on

unstable steep sided hills that are water saturated? - ANSWER✔✔-Debris flows.



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, What environmental conditions are indicated by the presence of ooids in a sedimentary

rock? - ANSWER✔✔-Strong currents.


Which type of sedimentary rock forms from the burial and compaction of vegetation

prior to decay? - ANSWER✔✔-Coal


What process regulates the concentration of Ca2+ and Na+ ions in solution in seawater?

- ANSWER✔✔-Ions are removed by precipitation.


Which conditions are required to generate hydrocarbons from buried organic matter? -

ANSWER✔✔-Heat and pressure


What term is used to denote a distinct layer in a sedimentary rock distinguished by

color, grain size or other physical/chemical property? - ANSWER✔✔-Sedimentary bed.


True or false? The sequence of layering in a sedimentary rock can provide an absolute

age for individual beds. - ANSWER✔✔-False


Is the erosion of previously deposited sedimentary sequences more associated with

marine regression or transgression? - ANSWER✔✔-Marine regression.


What process involved the secondary replacement of Ca ions with Mg ions during

diagensis? - ANSWER✔✔-Dolomitization


What happens to sediment porosity during lithification? - ANSWER✔✔-Decreases.




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