ERSC1P92 Assignment 3
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Brock University *
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1P92
Subject
Geology
Date
Dec 6, 2023
Type
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16
Uploaded by DoctorGerbil3730
1 ERSC 1P92 –EXTREME EARTH – ASSIGNMENT 3 ASSIGNMENT DUE BY Wednesday, December 6th, 11:59 PM Preamble:
In this assignment we pull together material covered in Modules 3, 4 and 5 (and to some extent also Module 2!). Please answer all questions before entering your answers in the Questions tool in Brightspace. Points per question are given in brackets (x). Work through the assignment, then, when you have it complete, go to the Quizzes
tool in Brightspace to enter your answers and submit the assignment. Rules and guidelines for assignments are in your course syllabus
. As always with online tools, save your work frequently while entering answers. Interpretation of Earthquakes, Volcanoes and Plate tectonic movement on Tralfamadore. Introduction
Earthquakes and volcanoes not only cause disasters on Earth, they also provide valuable information about the structure of the Earth, particularly its crust. Earthquakes occur most commonly along plate margins, as we saw in the section on the distribution of earthquakes. In fact, the distribution of earthquakes can be used to distinguish divergent and transform plate boundaries from convergent plate boundaries. Some types of volcanoes develop along plate margins and other types form in settings that are well way from plate margins. In this assignment you will use the distribution of earthquakes and volcanoes on the fictitious planet of Tralfamadore (a place created by the late American author Kurt Vonnegut in his novel “Slaughterhouse Five; or, The Children's Crusade: A Duty-Dance with Death”). The purpose of the assignment is to give you the opportunity to determine the location of tectonic plate boundaries and other features that have been discussed in this course (most from Modules 3, 4 and 5 but one feature comes from Module 2). In addition to this document you will need to download the Assignment 3 map and the Assignment 3 Tutorial. The map shows: 1)
the distribution of land masses on Tralfamadore that are surrounded by an ocean, 2)
the location where volcanoes occur, and 3)
where earthquakes have taken place on the planet. 4)
Feature reference numbers, Volcano Reference letters, Plate tectonic movement direction roman numerals (for use in assignment questions) You should review the Module material on the distribution of earthquakes and volcanoes in order to interpret the data on the map provided. The Assignment 3 Tutorial provides crucial
2 information and advice on how to go about completing the assignment. You are strongly encouraged to review the tutorial before completing the assignment. REMINDER! Please answer all questions before entering your answers in the Quizzes tool
Instructions
QUESTION 1: Submit a copy of the Tralfamadore map to the Quizzes tool,
on which you have added the information outlined below. The completed copy of the MAP must be upload as a PDF copy. (ONLY a PDF, no word file, no pages files, anything other than a PDF will be awarded 0 (zero) marks) • The map is available in JPG format (and PDF format) that you can download to any software that will allow you to add coloured lines and text to the image and then save it for submission through Brightspace • If you cannot annotate the map digitally you can print it out and add the required information with coloured pencils and then scan or photograph your work and save as a PDF and then submit as the completed assignment. HOWEVER – Make sure that the map is legible or it will not be marked! On the map complete each of the following:
3 PART I
Sketch the location of all plate boundaries that can be identified on the basis of the distribution of earthquakes: a)
Show any trenches
that you think might be present as continuous RED lines
. (5 points) b)
Show any oceanic ridges
that you think might be present as continuous BLACK lines
. (5 points) c)
Show the location of any transform faults
that you think might be present as continuous GREEN lines
. (5 points) Note: Be very precise in the placement of your lines for these tectonic boundaries. PART II
Based on the pattern of depth of earthquakes:
4 a)
Identify where subduction is taking place on the map at the steepest angle from the horizontal
(label this location with an arrow and with the letter “
A
”). (2 points) b)
Identify where subduction is taking place on the map at the lowest angle from the horizontal
(label this location with an arrow and with the letter “
B
”). (2 points) c)
Can you recognize any location where there may be a “
seismic gap
”? If you think that there is one label this location with an arrow and with the letter “
C
”. (2 points) Note: Be very precise in the placement of your ‘letters’ – The letter size should be APPROXIMATELY THE SIZE shown above (ie. ~18 pt font) PART III
The following questions (2-27) will refer to the feature reference numbers, volcano reference letters and Plate tectonic movement direction reference roman numerals posted on the Tralfamadore map. For ease of recognition and reference, each number/ letter/ roman numerals has been provided on a separate map as well. ANSWERS for these questions must be entered in the ‘Quizzes’ tool in Brightspace. The following questions (2 to 7) refer to ‘’Feature reference numbers
” Ie. .
1
5 QUESTION 2 The feature marked ‘’
1
”’ on the Tralfamadore map could most reasonably be described as the following: (1 mk) A)
Himalaya type mountains (continental/continental crust collision) B)
Andes type mountains (continental/oceanic crust collision) C)
Island arcs (oceanic/oceanic crust collision) D)
Continental rift valley (divergent boundary within a continent) E)
Area tectonically similar to San Andreas Fault, California (transform fault cutting continent) F)
Area Tectonically similar to Hawaii (Volcanic Island chain within plate, aligned with plate movement) G)
Area Tectonically similar to Iceland (Volcanic Island on divergent boundary) H)
A record of a large meteorite impact event
6 QUESTION 3 The feature marked ‘’
2
”’ on the Tralfamadore map could most reasonably be described as the following: (1 mk) A)
Himalaya type mountains (continental/continental crust collision) B)
Andes type mountains (continental/oceanic crust collision) C)
Island arcs (oceanic/oceanic crust collision) D)
Continental rift valley (divergent boundary within a continent) E)
Area tectonically similar to San Andreas Fault, California (transform fault cutting continent) F)
Area Tectonically similar to Hawaii (Volcanic Island chain within plate, aligned with plate movement) G)
Area Tectonically similar to Iceland (Volcanic Island on divergent boundary) H)
A record of a large meteorite impact event QUESTION 4 The feature marked ‘’
3
”’ on the Tralfamadore map could most reasonably be described as the following: (1 mk) A)
Himalaya type mountains (continental/continental crust collision) B)
Andes type mountains (continental/oceanic crust collision) C)
Island arcs (oceanic/oceanic crust collision) D)
Continental rift valley (divergent boundary within a continent) E)
Area tectonically similar to San Andreas Fault, California (transform fault cutting continent) F)
Area Tectonically similar to Hawaii (Volcanic Island chain within plate, aligned with plate movement) G)
Area Tectonically similar to Iceland (Volcanic Island on divergent boundary) H)
A record of a large meteorite impact event QUESTION 5 The feature marked ‘’
4
”’ on the Tralfamadore map could most reasonably be described as the following: (1 mk) A)
Himalaya type mountains (continental/continental crust collision) B)
Andes type mountains (continental/oceanic crust collision) C)
Island arcs (oceanic/oceanic crust collision) D)
Continental rift valley (divergent boundary within a continent) E)
Area tectonically similar to San Andreas Fault, California (transform fault cutting continent) F)
Area Tectonically similar to Hawaii (Volcanic Island chain within plate, aligned with plate movement) G)
Area Tectonically similar to Iceland (Volcanic Island on divergent boundary) H)
A record of a large meteorite impact event
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