EASC 101 - Final Exam Prep Questions with Complete Answers.
8 views 0 purchase
Course
EASC 101
Institution
EASC 101
EASC 101 - Final Exam Prep Questions with Complete Answers.EASC 101 - Final Exam Prep Questions with Complete Answers.EASC 101 - Final Exam Prep Questions with Complete Answers.EASC 101 - Final Exam Prep Questions with Complete Answers.
EASC 101 - Final Exam Prep Questions with
Complete Answers.
Sedimentary Environment are... - Correct answer geographic settings where sediments
accumulate to form rocks assemblages
Sedimentary Fancies - Correct answer changes in past environments, seen when a
single layer of sedimentary rock is traced laterally
High energy environment examples - Correct answer Waves, currents, deserts, fluvial
environments, alluvial fans, beaches, reefs, glacial environments
The key is movement (fast-flowing water)
High energy environment products - Correct answer Larger grain sizes, well-sorted to
poor-sorted depending on transportation
Low energy environment products - Correct answer Small grain sizes, well-sorted, high
mud content
Strata - Correct answer Horizontal layers of sediment
Metamorphism - Correct answer Alteration of rock due to changes in physical or
chemical environments
Changes in in mineralogy and texture occur
Low vs. High grade - Correct answer Low grade means minimal changes, high grade
means substantial change
Agents to Metamorphism - Correct answer Heat (provides energy for chemical
reactions), pressure (increases with depth, can be confining (equal in all directions) or
differential (not equal) pressure)
Foliated - Correct answer metamorphic texture that includes planar (nearly flat)
arrangements of mineral grains or structural features in a rock
,These minerals rotate or recrystallize with a preferred orientation, and are perpendicular
to the direction of differential pressure
Non-Foliated - Correct answer Metamorphic texture for rocks with interlocking crystals
Metamorphic Environments - Correct answer 1) Contact or thermal metamorphism (rock
intruded my magma/heat)
2) Hydrothermal metamorphism (hot fluids circulating through rock cracks)
3) Burial metamorphism (huge amounts of sediment accumulating in a basin)
4) Seduction zone metamorphism (rock + sediment carried to great depths, ex. oceanic
plate)
5) Regional metamorphism (common type of metamorphism, associated with mountain
building)
Metamorphism along fault zones may produce a loosely coherent rock called... - Correct
answer Fault Breccia
Rocks modified or produced by impact is called a... - Correct answer Impacted
Purpose of Index minerals - Correct answer establishing the metamorphic grade of a
rock
Examples of metamorphic faces - Correct answer Hornell’s, zeolite, green schist,
amphibolite, granulite, blue schist, eclogue
The Hydrologic Cycle - Correct answer 1) Infiltration (precipitation enters the soil)
2) Runoff (moves downslope at the surface)
3) Evapotranspiration (runoff finds its way back to the atmosphere)
Distribution of Earth's Water - Correct answer Global Distribution:
-96.5%: Oceans
-1%: Saline lakes/groundwater
-2.5%: Freshwater
Freshwater:
-30.1%: Groundwater
-68.6%: Glaciers and Ice sheets
-1.3%: Surface/Freshwater
Erosion - Correct answer (geology) process of wearing or grinding something down (as
by particles washing over it)
Drainage Basins - Correct answer any area of land where precipitation collects and
drains off into a common outlet, such as into a river, bay, or other body of water.
Zones of River Systems - Correct answer 1) Sediment production
2) Sediment transport
3) Sediment deposition
Laminar Flow - Correct answer Water moving in a straight line
Turbulent Flow - Correct answer Water moves erratically (whirlpools, eddies)
Flow Velocity - Correct answer Velocity increases in deeper parts of the channel
Factors:
-channel slope/gradient
-channel shape
-channel size and roughness
-discharge (amount of water)
Changes Downstream - Correct answer Changes in slope on stream profile are usually
accompanied by an increase in discharge and channel size, and a reduction in particle
size
Quarrying - Correct answer Removal of blocks from channel bed
Abrasion - Correct answer Bed and banks of a bedrock channel are bombarded by
particles carried within the flow
Corrosion - Correct answer Gradual dissolution of rock by flowing water
Methods of sediment transportation in streams - Correct answer -Solutions (dissolved)
-Suspensions (suspended)
-Skipping/rolling/sliding along
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Lectjoe. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $24.49. You're not tied to anything after your purchase.
