Student ID No.:…………………………….

© The University of Trinidad & Tobago Page 1 of 8

Sept/Dec 2013 Final Examinations

GEOL1002

FINAL ASSESSMENT/EXAMINATIONS SEPT/DEC 2013

Course Code and Title: GEOL1002 – Introduction to Petroleum Geoscience

Date and Time: December 9, 2013 – 9:00am to 12:00noon Duration: 3 hours

PLEASE READ ALL INSTRUCTIONS CAREFULLY BEFORE YOU BEGIN THIS

EXAMINATION

Instructions to Candidates

1. This paper has 8 pages and 4 Sections. 2. This is a closed book examination. 3. All questions in this examination are compulsory, and students are required to attempt

all. 4. For the multiple choice questions, please tick your answer clearly on the question paper. 5. Those questions which require completion of blank areas or boxes, please write your

answer clearly in the boxes on the question paper. 6. Please attach the question paper to your answer booklet.

7. Write your student I.D. on the question paper, as they contain your marked answers for multiple choice and short answer questions.

Key Examination Protocol

1. Students please note that academic dishonesty (or cheating) includes but is not limited to

plagiarism, collusion, falsification, replication, taking unauthorised notes or devices into

an examination, obtaining an unauthorised copy of the examination paper,

communicating or trying to communicate with another candidate during the examination,

and being a party to impersonation in relation to an examination.

2. The above mentioned and any other actions which compromise the integrity of the

academic evaluation process will be fully investigated and addressed in accordance with

UTT’s academic regulations.

3. Please be reminded that speaking without the Invigilator’s permission is NOT allowed.

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Sept/Dec 2013 Final Examinations

GEOL1001

SECTION 2 - PLATE TECTONICS

ANSWER ALL QUESTIONS (20 marks)

1. Draw diagrams of the three (3) main plate boundaries associated with geodynamic movement of the Earth’s crust. (12 marks)

2. Describe the deformation mechanism found in the zones illustrated in the two

boxed areas shown in the diagram below? (8 marks)

© The University of Trinidad & Tobago Page 8 of 8

Sept/Dec 2013 Final Examinations

GEOL1001

SECTION 3 - STRUCTURAL GEOLOGY

ANSWER ALL QUESTIONS (30 marks)

1. Define the following: (a) normal fault, (b) slickensides striations, (c) mylonite, (d) horst and graben, (e) overfold. (5 marks)

2. Briefly describe the mechanism of overthrust folding. (5 marks)

3. Draw cross sections of an anticline, labelling the fold hinge, fold limbs, fold axis, and the axial plane. (8 marks)

4. How does metamorphic foliation develop? (8 marks) 5. Comment on the role of differential stress in formation of phyllite and schist.

(4 marks)

SECTION 4 - HYDROCARBONS, TRAPS AND SEALS

ANSWER ALL QUESTIONS (30 marks)

1. Why is petroleum thought to have an organic origin? (5 marks) 2. What is the application of vanKrevelen’s diagram in petroleum geochemistry? (2 marks) 3. Define the following: (a) oil window, (b) catagenesis (4 marks) 4. How do anticlinal traps develop? (4 marks) 5. Comment on the importance of micro-fractures in the migration of oil and gas. (10 marks) 6. How does pore throat size influence expulsion efficiency of hydrocarbon

molecule from shale source rock? (5 marks)

THE END OF THIS EXAMINATION