Practice Finals
19 important questions on Practice Finals
What is a waste rock?
What is mineral extraction?
Why is disposable of a waste rock a significant problem in mineral extraction?
- mechanically unstable
- prone to mass movement
- chemically unstable
- significant leaching and contamination may result
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What are the ranks and grades of coal in listed order of increasing carbon content?
- Lignite - brownish soft coal showing traces of plant structure
- Bituminous - containing bitumen (black)
- Anthracite - coal of a hard variety that contains relatively pure carbon and burns with little flame and smoke
LBA is the rank from greatest to smallest!
(little basketball ass)
Where do spring form?
What geologic process must occur in order to create a mineral deposit that is economically valuable (ex: ore), explain.
What crust is relatively thin and typically consists of basalt and gabbro?
What is a continental crust?
What does a higher porosity mean?
What is reverse faulting?
- hanging wall moves up while the footwall goes down
- indicates compressive shortening in the crust
- It is an opposite of a normal fault
What is a strike-slip fault?
- Fault in which two blocks are sliding past one another
- Ex: San Andreas Fault
What are the S waves?
- They are the secondary waves
- They having a larger jolt or shaking
What are S waves?
- They are the primary waves
- They cause small jolts and light shaking
T/F Do body waves travel from the focus to the other observer, or the seismograph recorder, through earths interior and can be subdivided into P waves and S waves
What do joints, veins and faults have in common? Why do they differ from each other?
- Joint - a break of natural origin in the continuity of either a layer or body of rock that lacks
- Veins - is a distinct sheet-like body of crystallized minerals within a rock (small)
- Faults - a fracture or a zone of fractures between two blocks of rocks
Igneous rock classification scheme is based on :
- Proportion of minerals
- Texture
What is a stream capacity?
What direction do S waves do to pass through materials?
PRACTICE QUESTION: Calculate a best estimate of the recoverable bitumen contained within this deposit (in barrels of oil, bbl) using a drainage area of 3.1 km2 and average net pay thickness of 7.4 m. The average porosity of the reservoir is 21% (ie. 0.21) and the average water saturation is 36% (ie. 0.36). Since the reservoir is flat-topped and oval, the shape correction factor is 0.70. Use an oil shrinkage factor of 0.20 and a recovery factor of 0.15.
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