Reflection Seismology

Geology 4068 

Fall 2018

Dr. Juan M. Lorenzo
Department of Geology and Geophysics

Lecture and ...  Monday E207 7.30-9.20 a.m.
1+ Saturday field day (optional)
Lab times 1.30 p.m. - 4.20 p.m. Mondays E217 Subsurface Lab 
Teaching Assistant Guibao Liu:  gliu8 at LSU  Office hours 11 am- noon, Th. in the "fishbowl"
Office hours

Any day by appointment

For appointments and all correspondence. (Please make sure the subject

line contains the course name as written below)


Subject:  GEOL4068

for Lecture-required (Liner) and Lab-recommended (Forel et al.)

Course Book: Liner 3rd Edition

Elements of 3-D seismology by Chris L. Liner, 2004, 608 pp. Third Edition

Library e-book:

Course Book: Liner 3rd Edition

Seismic Data Processing with Seismic Un*x 2007 Forel, D. Benz, T. and Pennington, W. 2007, 16 chapters, SEG, OK.

Learning Goals:

Students will learn to document the (1) background, (2) purpose and (3) function of chosen seismic survey techniques and algorithms,to enhance 2D seismic images of buried geological structures. They will communicate this knowledge through visual representations of the algorithms and formal technical description tools (e.g. pod, an html-like language for embedding embedded documentation within within Perl-coded programs)

Course work

--Bi-monthly lecture homework, lab homework, a field-based seismic processing project (Visual communication skills), and two midterm  exams. 

 Each homework usually takes 3-4 hours to complete.  One of the lab homeworks will be used to emphasize technological communication skill sets.  

Lectures  will be dedicated to the presentation of concepts covered by the course textbook and Labs will be dedicated to exercises using academic seismic processing software in the Subsurface Laboratory (E217).   In order to engage in reflective discussions during lecture times, students will complete online linux and perl tutorials and power-point class exercises prior to meeting times.

Lab work will include processing of an unpublished seismic data set collected by LSU students and faculty .  All homeworks and lab exercises, with the exception of the final project, are due one week after they are handed out, at the beginning of each class, typed and printed on paper using full English grammar and syntax to explain the full reasoning process behind mathematical and physical derivations, including references.

Recommended prior courses or experience Math I, II, Physics-I, programming experience with a high-level language like Excel, Matlab or Maple, Mathematica, etc.

Course Grades

Final letter grades are calculated using the results of weekly lecture homework and lab exercises and homeworks (30%), two midterm exams (total of 20%), one technological communication project (25%) a visual communication project  (25%).  In-class quizzes, presentations and participation can provide up to 5% bonus points. A-: 90-93.3, A: > 93.3-96.7, A+: > 96.7-100%) , B-: 80-83.3, B: > 83.3-86.7, B+: >86.7 - 90%, C-: 60-63.3, C: >63.3-66.7, C+:>66.7-80%;  D-: 50-53.3%, D: >53.3-56.7, D+: >56.7-60%), F (less than 50%) Graduate students taking this course will be held to a higher standard, commensurate with their academic seniority.
COLOR CODES In Powerpoint (GREEN) format, in MSWord (BLUE) format and as old html files, .
Program Downloads

Matlab programs for lectures ---> SEA  (self-expanding archive)


Matrix Multiplication in Matlab; Matlab tutorial

Computational Tools for Geoscientists Notes (LSU)

Processing 102205 LSU line06 landstreamer data (LSU)

Academic Standards and Expectations What is LSU Commitment to Community?  What is Plagiarism?  What is Academic Misconduct?

This course is certified as a Communication-Intensive Courseand meets all of the requirements explained on the CxC Web site., including the following: Emphasis on formal and informal assignments in written and visual communication, class time spent on communication, 40% of the final grade based on communication projects, revisions after faculty feedback on 2 formal projects (one for each emphasis), and a student/faculty ratio of 35:1. Because it meets these requirements, students may count it toward Distinguished Communicator Certification on LSU transcripts.

Communication Intensive Assignments

(written minor component)

Informal Activities

Students will sketch conceptual models to describe physical processes attending wave propagation During lab sessions, students will complete lab assignments modifying existing programs to achieve specific goals established in the handout of the day.

Formal Activities

Students will develop visual explanations to justify the use of different seismic algorithms and show, using resultant seismic images, the results of applying different parameters. A general flow chart is required to explain the overall goals of the project. A complete visual processing sequence  is required in the explanations of all of the processing stages. Students will develop software (using Perl and Seismic Unix) that will render best results at each processing stage for seismic data.  Each student will develop one existing seismic processing module with a Perl wrapper.  Each resultant module will be fully documented using in Perl documentation language.  Examples of each working module will also be provided by each student. 


Draft-review-revise process will be implemented for developing an electronic document that includes generation of images to represent best-practices in the choice of processing parameters. Computer Code (from technological project) can also be included.
Each laboratory exercise (bandpass filtering and beyond) will form part of the overall Visual  Project.
Draft-review-revise process will be implemented on the module targeted for development, which will require students to program as well as generate technical documents.


Lectures and Labs
Mon. 20 Introduction to the Course-- Background quiz and poll
Should I take this class?

Take the following test

Mon. 20-LAB

Introduction to Linux, Perl and Seismic Unix

Mon. 27 General Properties of Waves Ch. 1 
Mon. 27

Lab exercises


Lectures and Labs

Mon. 3
Mon. 3 -LAB
Labor Day
Mon. 10
General Properties of Waves

Mon. 10-LAB  Chapters. 1-3 of Forel et al.
Lab exercises

(useful linux commands)

Mon. 17
General Properties of Waves
Waves in Fluids
Supplemental reading:

Acoustic Wave Equation; Elastic Moduli
Elastic Wave Propagation

Mon. 17-LAB

Basic Exercises

30 Sept. - Oct. 2 GCAGS, Shreveport
Mon. 24

Seismic Events

Mon. 24- LAB
Bandpass filtering
Gain control


Lectures and Labs

Mon. 1 Seismic Events
Ch. 3 Notes on Resolution
Mon. 1- LAB Spiking Filter Guide for Visual Project
Guide for Technological Project
Visual Project Example
Technological  Project Example
(Thu. - Sun) 4 - 7 Fall holiday
Mon. 8

Seismic Events

Mon. 8-LAB


Top and Bottom Muting


Mon. 15
Seismic Events
Mid-term exam (take-home)
Mon. 15 -LAB
Bed thickness resolution

Tues. 16 Mid-semester grades due
14-19 October SEG Annual Meet., Anaheim, CA

Mon. 22 Seismic Events
Mid-term exam (due)
Mon. 22 -LAB
Velocity/ f-k filtering
Module programming
Mon. 29 CMP Data Processing
Seismic Data Acquisition

Mon. 29-LAB





Lectures and Labs

30 Sept. - Oct 2 GCAGS, San Antonio, TX
4-7 November GSA, Indianapolis, IN
Mon 5
Velocity analysis notes

Seismic Data Acquisition
Hand in first version of Tech. Project
Fresnel Zone 
Mon. 5-LAB Velocity analysis notes
(Making CMP's)
Return feedback on first draft of Tech Project
Visual Project outline  is due

Lab exercise
Mon. 12 Seismic Data Acquisition
Mon. 12-LAB Top Muting
Return feedback on Visual Project
Hand in second version of Tech. Project

Mon. 19
Seismic Data Acquisition

Midterm take-home exam 2
Mon. 19-LAB Stacking and Migration Return feedback on second draft of Tech Project 
Wed.  21 - Sun. 25 Thanksgiving break
Mon. 26 Migration Theory Ch. 17-18
Mon. 26 - LAB
Hand in Visual and Tech Projects for final feedback

Sat. 1
Classes End

Mon. - Sat.: 3 - 8 Final Exam Week
Fri. Dec 7

e-mail : Dec 7-- Completed Technological Project module  module with a working example and incorporated documentation  
Dec 7- Visual Project must be completed

Both Projects are due by 4.30 p.m.

Mon-Fri: Dec.10-14 AGU, Washington, D.C.
Tue 11
Grades Due