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INTRODUCTION

Petrology is the science of studying the composition, occurrence, classification, and relationship of rocks with geological processes. This includes the study of igneous, sedimentary, and metamorphic rocks.

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INTRODUCTION

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  1. INTRODUCTION DEFINITION PETROLOGY is the science of studying the earth rock skin, which covers about the occurrence, komposisisi, rock classification and relationship with the processes and how the occurrence. Stone all the materials composing the earth crust and is an aggregate (collection) minerals which crystallize already. NOT INCLUDING Stone is dust and other loose material that is a result of chemical weathering and mechanical erosion and other processes. 

  2. ROCKS can be grouped into THREE TYPES  • 1. Igeneous rock 2. sedimentary  Rock 3. METHAMORFIC ROCK 

  3. 1. IGNEOUS ROCK • set of interlocking aggregate magma silicate minerals that results refrigerate (Walter T. Huang, 1962) 

  4. 2. SEDIMENTARY ROCK rock material agregeate results litification rock denudation results or results of chemical reactions and the activities of organisms (Pettijohn, 1964) 

  5. 3. METAMORPHIC ROCK • rock that came from a source rock that changes the texture and mineral composition in the solid phase as a result of changes in physical conditions (pressure, temperature, or pressure and temperature). 

  6. Rock Cycles (Sukendar Asikin, 1976)

  7. Rock Cycles

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