# PETROLOGY

=LESSON TITLE PETROLOGY

Objective
 By the end of the sub-module unit, the trainee should be able to: Explain modes of formation of various types of rocks Explain the characteristics of various types of rocks Describe the texture of various types of rocks

## Lesson Content

• Formation of rocks - igneous rocks - sedimentary rocks - metamorphic rocks • Characteristics • Texture

### Notes

Rocks are classified according to there mode of formation as follows:

1. Extensives
2. Intrusives
rocks may also be cassified according to their 'structure and texture


PRACTICE 16.1.5P0 Specific Objectives By the end of the sub-module unit, the trainee should be able to: a) classify various types of rocks b) identify various types of rocks

16.1.5P1 Content • Classification of rocks ­ texture ­ structure • Identification based on: ­ formation ­ characteristics

Competences

Ability to: • Classify various types of rocks • Select rocks for given tasks

Suggested Learning Resources • Text books • Igneous rock samples • Internet services • Charts • Manuals

Suggested Learning Activities • Lecture • Visual observation • Discussion

Suggested Assessment Methods • Oral • Written