Eosc 210 exam - Study guides, Class notes & Summaries

EOSC 210 EXAM QUESTIONS AND ANSWERS ALL CORRECT How do minerals form? - Answer- cooling and crystallization from magma; precipitation from fluid; chemical changes from heat and pressure; precipitation from biogenic activity (biomineralization) How do we identify minerals? - Answer- 1. Physical properties: colour; lustre; streak; hardness; cleavage; fracture 2. RXN to acid; magnetism; taste; radioactivity; specific gravity; habit Silicate Minerals classification - Answer- classified bas...

EOSC 210 EXAM QUESTIONS WITH 100% CORRECT ANSWERS UPDATED 2024/2025 How does pore pressure effect LS - Answer- high pore pressure adversely affects stability of slope because there is a decrease in effective stress What are triggers for a LS - Answer- rainfall, snowmelt, volcano, EQ, etc. What does a LS trigger do - Answer- initiates failure What does precipitation do in a LS - Answer- increases pore water pressure, so less effective stress, and causes LS What are types of LS mitig...

EOSC 210 Midterm 1 Exam Questions and Answers All Correct 100% Verified What is Walther's Law? - Answer- - a vertical sequence of facies reflects lateral changes in depositional environment - when a depositional environment (sedimentary environment) migrates sedimatents lie on top of other sedimnets What is marine trangression? - Answer- - sea level rises relative to land surface - depositional environment migrate toward land - marine sediments (shales and limestones) deposited on top...

EOSC 210 Midterm 2 Exam Questions with 100% Correct Answers What are glacial-fluvial sediments? - Answer- - mostly sand and gravel w/ moderate sorting and bedding - commonly non-cohesive and highly permeable - good bearing capacity and low settlement - the best sources of groundwater in the Vancouver area are glacial-fluvial sediemts (tills are much weaker) What are glacial-lacustrine sediments? - Answer- - generally have more silt and clays - lower bearing capacity and higher settle...

EOSC 210 Midterm Exam Questions and Correct Answers Already Passed What is a mineral - Answer- Naturally occurring inorganic solid with a crystalline structure (lattices) and consistent chemical composition (varies only within defined limits) Physical appearance reflects crystalline structure How do minerals form? - Answer- -Cooling/crystallization of magma -Precipitation from fluids (eg. evaporated lake) -Chemical changes from heat and pressure changes -Biomineralization How can we i...

EOSC 210 Midterm 1 Exam Questions with All Correct Answers 2024/2025 Latest Update What are the main sedimentary rock types? - Answer- 1. Clastic - clasts are fragments or particles of weathered and eroded rocks (eg. sandstone) 2. Chemical (evaporites) - formed through precipitation (eg. halite, gypsum) 3. Organic (eg. chalk, limestones, coal) How are clastic sedimentary rocks transported? - Answer- 1. transported as suspended load with dissolved load (ions) and bed load 2. as they get...

EOSC 210 MT1 EXAM QUESTIONS WITH REVISED ANSWERS ALL CORRECT List 4 ways a mineral can form - Answer- 1. cooling and crystallization of magma 2. Precipitation from liquid 3. Chemical changes from heat or press. 4. Precipitation from life How are minerals grouped? - Answer- Based off their anion. If 3 different minerals have the following anion, place all in the correct group: 1. O 2. S 3. F, Cl or Br - Answer- 1. Oxide 2. Sulphides 3. Halides If 4 different minerals have the ...

EOSC 210 FINAL EXAM QUESTIONS WITH 100% COMPLETE SOLUTIONS What are the 3 types of aquifers? - Answer- 1. Unconfined - no overlying aquitard 2. confined - aquitards above and below 3. artesian - wells will flow freely IF hydraulic head is above ground surface Cone of depression - Answer- cone that forms around a well in the water table Name 4 potential problems from excessive groundwater withdrawal: - Answer- 1. long term depletion 2. negative effects on water quality 3. negative...