Questions are in the attached files
Final Exam 1070 Take Home Exam Please complete all the questions on the exam. A marking rubric is not provided. Complete the questions on the exam sheet. Spelling and grammar will be graded. Please include you name and student number on each page of the exam. You may print off, complete the exam, scan it and send submit it as a pdf document, or you may complete the exam within the word document. Please save you exam with your name included in the file extension. The PDF document “Final Exam Diagrams” is available as a separate document in the assignment section. This document is the reference document to complete Section 3. If you have any specific exam questions, please email your instructor. Section 1: Introduction Answer the following questions: 1) List three elements: 2) List three minerals: 3) List three rocks: Section 2: Application Questions 1) The volcano La Soufriere is currently erupting on the island of St. Vincent. Answer the following questions: a. What type of volcano is this? ________________________________________________ b. Give 2 geological reasons for identifying the type of volcano: ____________________________________________________________________________________________________________________________________ c. What is the large-scale tectonic setting of this volcano? ____________________________________________________________________________________________________________________________________ 2) You are working on a case sensitivity analysis for a gold property that you own. You project the price of gold to be about 2,000/oz for the next 5 years of mining. Your deposit being mined is 500,000 oz over the 5 years. You expect to recover 75% of the gold. If your cost is 500/oz, answer the following questions: a. How many ounces of gold will you recover from the 500,000 oz deposit? _______________________________________________________ b. What is your profit or loss per ounce? ________________________ c. Will you make a profit in the next 5 years? ____________________________ 3) You are on an exploration drill program drilling for oil and gas. You are encountering sedimentary rock from top to bottom including: (A) conglomerate, (B) mudstone, (C) coarse grained sandstone, (D) mudstone, (E) sylvite, (F) halite and (G) massive (non-porous) limestone, (H) siltstone and (I) fine grained sandstone. a. What rock unit would be best as a reservoir rock? ________________________________________________________________ b. Explain what features would make this unit a suitable reservoir rock. ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ c. What environment do units G through E represent? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Section 3: Diagrams Answer the following questions that correspond to each diagram. The diagrams are in a separate document called “Final Exam Diagrams”. Diagram #1: The rock units are labelled 1, 2, 3 and 4 for simplicity on a block diagram. The legend provided gives the rock name for each rock unit. The diagram shows a 3-D view of the rock units as they appear on the surface of the earth (Plan view – Side A), and what the rocks look if you sliced through the Earth (cross-section view – Side B and Side C). The arrow and “N” give the direction of cardinal north. The strike and dip symbol are provided on the diagram to illustrate how it is used on a map (plan view). As you can see in this diagram, all the units are striking north. 1) What is the dip of unit 2 (blue line) __________ o _____________ 2) What is the dip of unit 3 (green line) _________ o ____________ 3) What is the dip of unit 4 (red line) ______ o _______ Diagram #2: A block diagram is provided with the map view completed. Units 1 through 4 are labelled on the plan view of the diagram. The north arrow direction is provided. You are also provided with the dip information for Unit 1 (blue line), Unit 2 (green line) and Unit 3 (red line). Each coloured line represents the contact between each rock unit. You have been provided with dip information for each unit. You have also been provided with a legend of the rock names. Complete the following exercises: 1) Draw the correct dip of each contact (coloured line) on Side B of the block diagram. 2) What are the two possible fold structures? ____________________________________ or __________________________________________________ 3) If unit 1 is the oldest of all the rock layers, what is the fold structure? _______________________________________________________ 4) What type of sedimentary environment could this diagram represent? ________________________________________________________________________ 5) If unit 1 is the oldest, what happened to the sedimentary environment over time as unit 1 through 4 were deposited? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Diagram #3: Units 1 through 4 are labelled on a diagram and a corresponding map. On the map you are provided with strike and dip information. 1) Based on the map answer the following questions: a. What is the strike of unit 2? ______________________________ b. What is the strike of unit 3 and 4? ________________________ c. What is the dip for the contact between unit 1 and 2? ______________________ d. What is the dip for the contact between unit 3 and unit 4? ____________________ 2) Please the correct dips of each line on Sides B and C of the diagram. Diagram #4: This diagram shows the distribution of rock units A through D and a fault cross-cutting the units. Answer the following questions: 1) If this diagram represents a cross-sectional view, what type of fault is this? __________________________________ 2) If this diagram presents a cross-sectional view, list the rock units from oldest to youngest? ____________________________________________________________________________________________________________________________________________________________ 3) If this diagram is a cross-sectional view, what type of stress formed this fault? _______________________________________________________________ 4) If this diagram represents a plan view or map view, what type of fault is this (also give direction)? ______________________________________________________ 5) If “A” is a conglomerate, “B” is a sandstone, “C” is a siltstone, and “D” is a mudstone, what has happened to the sedimentary environment over time? ________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Diagram #5: You have been provided with a plan view map of rock units X through X. All other structural information is provided on the map. The legend is provided that names each rock unit. Answer the following questions and complete the exercises: 1) What is the name of fault is shown on the map? ________________________________ 2) What is the strike of the fault? ______________________________________________ 3) What is the dip of the fault? ________________________________________________ 4) Name the cross-cutting igneous feature shown on the map? ______________________ 5) What is the fold structure illustrated on the map? _______________________________ 6) What is the oldest rock unit on the map? ______________________________________ 7) What is the youngest rock unit on the map? ____________________________________ 8) What rock formed in the shallowest environment? ______________________________ 9) What rock formed in the deepest environment? ________________________________ Diagram #6: You have been provided with a plan view map of rock units X through X. All other structural information is provided. The legend and other information is provide also. Complete the following exercises: 1) Determine the order the rock formed from oldest to youngest: 2) Write a “story” about the geological environment and how it changed over time. I.e. start with the oldest rock, what type of rock it is and what environment it formed. Move on to the next rock type describing how the environment changed to form the next rock. HINT: Do not forget any faults unconformities or other cross-cutting features. Please write in complete sentences. PowerPoint Presentation Final Take Home Exam: ES 1070 Section 3: Diagrams The following diagrams correspond to the “diagram” questions in Section 3. 1 2 3 4 NDiagram 1 Side B Side C Side A Strike (cardinal direction) Dip (Angle in degrees plus direction) Example: Unit 2 Strike: North Dip: 70oE (degrees east) 1 2 3 4 Diagram 2 N Side A Side B Side C Notes: Unit 1 dip: 45 degrees east Unit 2 dip: 30 degrees west Unit 3 dip: 30 degrees west Legend 1 – sandstone 2 – mudstone 3 – limestone 4 – fossiliferous limestone 1 2 3 4 N Side B Side A Side C Diagram 3 1 2 43 A Map N Diagram 4 A B C D A B C D Fault Diagram 5 L E F G H I L I H G F X X Legend Sedimentary Rocks E – limestone F – halite G – sandstone H –conglomerate I – sandstone L – mudstone Igneous Rocks X - basalt Diagram 6 B K B A Y Y T P O N M L M L Legend Sedimentary Rocks A- sandstone B – conglomerate K - mudstone L – halite M – limestone N – mudstone O – siltstone P – sandstone Igneous Rocks Y – basalt T – granite L