ERSC1P01_Igneous_Fall2021

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Brock University *

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1P01

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Geology

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Dec 6, 2023

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ERSC 1P01 –Planet Earth I – Igneous Rocks (IN PERSON) ASSIGNMENT DUE 31 hours after your ‘IN PERSON LAB’ i.e. 11:55 PM the next day Objectives: The recognition of common igneous textures and igneous rock forming minerals leading to the identification of common igneous rocks by means of an identification key. You will also apply the knowledge and descriptive skills learned in the minerals lab to further develop scientific observational skills. General Instructions: PRE-LAB INSTRUCTIONS 1. Go to the Lab Material>Lab 3: Igneous Rocks page in Sakai. Videos will review some of the minerals that you saw in Lab 1: Minerals. These are minerals that make up Igneous rocks. In addition the five main Igneous textures will be explained and demonstrated further in mini-video demonstrations. A PDF document describing the Igneous Textures and Igneous Rock groups is also available for you to download. 2. Make sure to watch each video to fully understand how to recognize each Igneous Rock texture, as you will be asked to identify textures during your IN PERSON lab session and they are also the first step to determining the Igneous rock name. You may want to take notes as you watch the videos! 3. We will be reviewing the igneous rock textures during the IN PERSON lab session. You may also bring your own laptop/tablet AND HEADPHONES to your IN PERSON lab sessions to rewatch and review the videos. 4. There is this ONE assignment question document provided for you. This document contains all of the questions for the Igneous Rock samples you will be reviewing in your IN PERSON lab session. At the END of this document is an Igneous Rock Table which lists the questions in a TABLE format. 5. There is also an IGNEOUS ROCK ID KEY provided for you in a separate PDF document. This ID KEY contains steps on how to identify each Igneous rock as well as overall descriptions for the igneous rocks. You will use this ID KEY during your IN PERSON lab session to determine the IGNEOUS ROCK NAME! You may print the documents and bring paper copies to your IN PERSON lab OR you may wish to work directly from your own computer/tablet. (NOTE: Paper copies will NOT be provided in your lab session!) Note: The descriptions in the lGNEOUS ID KEY provide overall-general desciptions of the rock types. Make sure to descibe only what you see in your rock tray sample (do not add information that is not there or marks will be deducted!).

1 ERSC 1P01 (Planet Earth I) – Igneous Rock lab (enter answers in Tests and Quizzes tool) *The igneous rock samples will be provided in your ‘IN PERSON’ lab session. You must attend your scheduled ‘IN PERSON’ lab session in order to answer the questions and submit this assignment. If you do not attend an ‘IN PERSON’ lab session but still attempt to submit answers to this assignment this will be considered a violation of Brock’s academic misconduct policy . SUBMITTING YOUR ASSIGNMENT AFTER YOUR IN PERSON LAB SESSION 1. The Igneous rock lab will become available for each individual lab section in the Test and quizzes tool at 5:00 pm on the day of your Scheduled IN PERSON lab and will be due by 11:55 pm the following day. 2. When you have answered all of your assignment questions you will then go to enter the answers in the ‘Test and quizzes’ tool. Every student will be answering a unique combination of thirty (30) questions randomly drawn from a bank of questions that you have just answered. You may save your answers and go back to answering them at a later time. However, if you ‘submit’ your answers and go back to ‘resubmit’ at a later time– you will be presented with an entirely new randomized draw of questions to answer! 3. Each IN PERSON lab section will also be given a unique set of five (5) questions to answer. The questions and associated igneous rock samples will ONLY be provided during the IN PERSON lab session. Assignment Questions REMINDER! Please answer all questions before entering your answers under the Tests & Quizzes section in Sakai. Each question is worth 1 mark. Total marks = 35 (30 mks from random draw of questions + 5mks for questions from each in person lab section). Answer the question for the specific igneous rock sample provided! How to answer questions in the ‘Test and quizzes’ tool? 1. Some of the questions will have ‘multiple choice’ answers available for you to choose from. ‘Click’ the correct answer from the list provided. 2. Some of the questions will require you to write in your answer in a ‘short answer’ or ‘fill in the blank’ format. You DO NOT need to answer using sentences. ONE (or two) word answers are recommended! The following is the list of questions that you will be answering for this assignment. We have also provided you with an Igneous Rock Table at the end of this document. PART 1 – Igneous Rock samples T1 to T5 Igneous Rock Sample T1: QUESTION A. What is the TEXTURE of igneous rock sample TI? glassy

2 ERSC 1P01 (Planet Earth I) – Igneous Rock lab (enter answers in Tests and Quizzes tool) QUESTION B. Describe a distinguishing OBSERVATION(s) about igneous rock sample TI: glassy QUESTION C. What is the NAME of igneous rock sample TI? ( spelling counts !): obsidian Igneous Rock Sample T2: QUESTION D. What is the TEXTURE of igneous rock sample T2? vesicular QUESTION E. Describe a distinguishing OBSERVATION(s) about igneous rock sample T2: bubble texture QUESTION F. What is the NAME of igneous rock sample T2? ( spelling counts !): scoria Igneous Rock Sample T3: QUESTION G. What is the TEXTURE of igneous rock sample T3? A mphanitic QUESTION H. Describe a distinguishing OBSERVATION(s) about igneous rock sample T3: dull, one colour QUESTION I. What is the NAME of igneous rock sample T3? ( spelling counts !): basalt Igneous Rock Sample T4: QUESTION J. What is the TEXTURE of igneous rock sample T4? P haneric QUESTION K. What are the NAME(s) of the mineral(s) that you have observed in igneous rock sample T4?: biotite, quartz QUESTION L. What is the NAME of igneous rock sample T4? ( spelling counts !): quartz and biotite granite QUESTION M. Based on CHART 1 (end of this document) which ‘mineral composition’ dotted line best matches the composition of igneous rock sample T4? Choose one: A, B , C, D, E or F Igneous Rock Sample T5:

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QUESTION N. What is the TEXTURE of igneous rock sample T5? P orphyritic QUESTION O. What are the NAME(s) of the mineral(s) that you have observed in igneous rock sample T5?: orth oclase QUESTION P. What is the NAME of igneous rock sample T5? ( spelling counts !): trachyte PART 2 – Igneous Rock sample I1 to I11 Igneous Rock Sample I1: QUESTION i. What is the TEXTURE of igneous rock sample I1? phaneritic 3 ERSC 1P01 (Planet Earth I) – Igneous Rock lab (enter answers in Tests and Quizzes tool) QUESTION ii. What are the NAME(s) of the mineral(s) that you have observed in igneous rock sample I1?: biotite, orthoclase, quartz QUESTION iii. What is the NAME of igneous rock sample I1? ( spelling counts !): granite Igneous Rock Sample I2: QUESTION iv. What is the TEXTURE of igneous rock sample I2? P haneric QUESTION v. Describe a distinquishing OBSERVATION(s) about igneous rock sample I2: interlocking minerals QUESTION vi. What is the NAME of igneous rock sample I2? ( spelling counts !): diorite QUESTION vii. Based on CHART 1 (end of this document) which ‘mineral composition’ dotted line best matches the composition of igneous rock sample I2? Choose one: A, B, C , D, E or F Igneous Rock Sample I3: QUESTION viii. What is the TEXTURE of igneous rock sample I3? phaneritic QUESTION ix. What are the NAME(s) of the mineral(s) that you have observed in igneous rock sample I3?: amphiobole QUESTION x. What is the NAME of igneous rock sample I3? ( spelling counts !): basalt QUESTION xi. Based on CHART 1 (end of this document) which ‘mineral composition’ dotted

line best matches the composition of igneous rock sample I3? Choose one: A, B, C , D, E or F Igneous Rock Sample I4: QUESTION xii. What is the TEXTURE of igneous rock sample I4? phaneritic QUESTION xiii. What is the NAME of igneous rock sample I4? ( spelling counts !): gabbro QUESTION xiv. Based on CHART 1 (end of this document) which ‘mineral composition’ dotted line best matches the composition of igneous rock sample I4? Choose one: A, B, C, D, E or F Igneous Rock Sample I5: QUESTION xv. What is the TEXTURE of igneous rock sample I5? A mphanitic 4 ERSC 1P01 (Planet Earth I) – Igneous Rock lab (enter answers in Tests and Quizzes tool) QUESTION xvi. Describe a distinquishing OBSERVATION(s) about igneous rock sample I5: orange QUESTION xvii. What is the NAME of igneous rock sample I5? ( spelling counts !): felsite Igneous Rock Sample I6: QUESTION xviii. What is the TEXTURE of igneous rock sample I6? porphyritic QUESTION xix. What are the NAME(s) of the mineral(s) that you have observed in igneous rock sample I6?: olivine, QUESTION xx. What is the NAME of igneous rock sample I6? ( spelling counts !): basalt QUESTION xxi. Based on the Bowen’s reaction series CHART 2 (end of this document) which ‘star’ on the chart best represents igneous rock sample I6? Choose one: W, X, Y or Z Igneous Rock Sample I8: QUESTION xxii. What is the TEXTURE of igneous rock sample I8? vesicular QUESTION xxiii . Describe a distinquishing OBSERVATION(s) about igneous rock sample I8: very lightweight, light grey,

QUESTION xxiv. What is the NAME of igneous rock sample I8? ( spelling counts !): pumice Igneous Rock Sample I9: QUESTION xxv. What is the TEXTURE of igneous rock sample I9? porphyritic QUESTION xxvi What are the NAME(s) of the mineral(s) that you have observed in igneous rock sample I9?: amphiobole , orthoclase QUESTION xxvii. What is the NAME of igneous rock sample I9? ( spelling counts !): andesite QUESTION xxviii. Based on the Bowen’s reaction series CHART 2 (end of this document) which ‘star’ on the chart best represents igneous rock sample I9? Choose one: W, X , Y or Z Igneous Rock Sample I10: QUESTION xxix. What is the TEXTURE of igneous rock sample I10? phaneretic QUESTION xxx. What are the NAME(s) of the mineral(s) that you have observed in igneous rock sample I10?: olivine QUESTION xxxi. What is the NAME of igneous rock sample I10? ( spelling counts !): dunite 5 ERSC 1P01 (Planet Earth I) – Igneous Rock lab (enter answers in Tests and Quizzes tool) QUESTION xxxii. Based on the Bowen’s reaction series CHART 2 (end of this document) which ‘star’ on the chart best represents igneous rock sample I10? Choose one: W, X, Y or Z Igneous Rock Sample I11: QUESTION xxxiii. What is the TEXTURE of igneous rock sample I11? phaneritic QUESTION xxxiv. Describe a distinquishing OBSERVATION(s) about igneous rock sample I11: pink, clear and black flecks QUESTION xxxv. What is the NAME of igneous rock sample I11? ( spelling counts !): granite QUESTION xxxvi. Based on the Bowen’s reaction series CHART 2 (end of this document) which ‘star’ on the chart best represents igneous rock sample I11? Choose one: W , X, Y or Z

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CHART 1: USE TO ANSWER QUESTIONS “M”, “vii”,”xi”. “xiv” 6 ERSC 1P01 (Planet Earth I) – Igneous Rock lab (enter answers in Tests and Quizzes tool) CHART 2: BOWEN’S REACTIONS SERIES (REFERENCE FOR QUESTIONS “xi”, “ xxviii”, “xxxii”, “xxxvi” )

The Following IGNEOUS ROCK TABLE lists the rock sample numbers, texture, mineral composition, observations and Rock name in table format. The numbers that are ‘highlighted’ ie. A. Correspond to the question numbers you are asked to answer above. This table may assist you with your Igneous Rock Name identification. There is no Igneous rock sample 7 in the trays. 7 ERSC 1P01 (Planet Earth I) – Igneous Rock lab (enter answers in Tests and Quizzes tool) Rock Number Texture Mineral Composition Observations Rock Name

T1 A B C T2 D E F T3 G H I T4 J K (M - see Chart 1) L T5 N O P I1 i ii iii I2 iv v (vii - see Chart 1) vi I3 viii ix (xi - see Chart 1) x I4 xii (xiv – see Chart 1) xiii 8 ERSC 1P01 (Planet Earth I) – Igneous Rock lab (enter answers in Tests and Quizzes tool)

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Rock Number Texture Mineral Composition Observations Rock Name I5 xv xvi xvii I6 xviii xix (xxi – see Chart 2) xx I8 xxii xxiii xxiv I9 xxv xxvi (xxviii – see Chart 2) xxvii I10 xxix xxx (xxxii – see Chart 2) xxxi I11 xxxiii xxxiv (xxxvi – see Chart 2) xxxv After entering your answers in the ‘’TESTS and QUIZZES TOOL”, click Save , then click Submit for grading . On the next screen click Submit for Grading again. ASSIGNMENT DUE 31 hours after your ‘IN PERSON LAB’ i.e. 11:55 PM the next day 9 ERSC 1P01 (Planet Earth I) – Igneous Rock lab (enter answers in Tests and Quizzes tool)

ERSC1P01_Igneous_Fall2021

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