School/ Department Name School of Engineering/ Petroleum Engineering
Program Code and Title: BEPF15 – Degree of Petroleum Engineering
Course Code and Title: 151PTE 321 – Engineering Geology
Assessment Number and Title: Assessment 1 – Assignment # 1
Assessment Type: Written Assignment
Assessment Location: ACK – Online Submission
Assessment Date: Saturday 11th of July, 2020
Assessment Time/Duration: Due by: Monday 13th of July, 2020
Section (s): G2P1
This is a calculation based project and you may use the class material such as your lecture notes, online resource, and software
such as excel (if needed).
You may not discuss or share this project or questions related to the project with your fellow classmates or other individuals.
Show your work, you may scan your hand work or insert excel calculation in this document.
Please type your answers using Microsoft Words and ensure to type your equations correctly.
If you require any assistance during the assessment period, please raise communicate with me through e-mail.
DO NOT WRITE IN THE AREA BELOW
Task Number Maximum Marks Student Marks
Total Mark 25
Assessor Name: Dr. Seyed Mehdi Seyed Alizadeh
Student Name: Date:
Task 1: (6 Marks)
Earth is believed to have formed from different parts. What is the evidence about internal
structure of earth in terms of boundaries and their depth according to seismic velocity
measurements? Write your answer in details.
Task 2: (5 Marks)
A soil particle size distribution curve is available as shown in figure 1.
Figure 1: Particle size distribution
(a) Determine the gravel, sand, silt and clay size particles by percentage of each (show all steps
of your work).
Note: Use the US department of agriculture (USDA) classification system.
(b) Calculate uniformity coefficient, coefficient of gradation and sorting coefficient for this
sample (show all steps of your work).
Task 3: (4 Marks)
Total Alkalies Silica tests have been performed on a number of extrusive igneous rocks in the lab.
The results of the tests are summarized in the table below:
Sample Sodium Oxide
Silica (wt. %)
Rock A 1 3 67
Rock B 8 6 55
Rock C 1 2 48
a) Determine the rock types that samples “A”, “B” and “C” belong to.
b) What is the equivalent plutonic igneous rock groups to each of samples A to C
according to the chemical composition of constituting minerals?
c) Which of the tested samples belong to acidic and mafic igneous rock groups?
Task 4: (10 Marks)
Table 1 shows percentage of different components in sandstones from a geological location as
obtained from lab analysis.
Table 1: Composition of sandstone samples
Sample No. Quartz (%) Lithics (%) Feldspar (%) Rock Type
A1 97 1 2
A2 80 3 17
A3 55 32 13
A4 40 53 7
A5 35 3 62
A6 10 5 85
A7 15 20 65
A8 20 55 25
A9 55 30 15
A10 60 12 28
a) Plot the points that correspond to each of the samples on the diagram presented in figure 2.
Figure 2: Diagram for sandstone composition
b) Using the classification scheme which is shown in figure 3, determine the type of the each sandstone sample according to its constituent elements.
Figure 3: Sandstone compositional classification chart