الصخور النارية. نسيج الصخور النارية

1: crystallizes; 2: olivine and crystallize; 3: pyroxene and crystallize; 4: plagioclase crystallizes Le Maitre editor 2002 Igneous Rocks: A Classification and Glossary of Terms, Recommendations of the International Union of Geological Sciences, Subcommission of the Systematics of Igneous Rocks
Le Maitre editor 2002 Igneous Rocks: A Classification and Glossary of Terms, Recommendations of the International Union of Geological Sciences, Subcommission of the Systematics of Igneous Rocks While cooling, the magma evolves in composition because different minerals crystallize from the melt

examples and Chemical classification also extends to differentiating rocks that are chemically similar according to the TAS diagram, for instance;• This is not an exact method, because the classification of igneous rocks also depends on other components than silica, yet in most cases it is a good first guess.

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تصنيف الصخور النارية
While cooling, the magma evolves in composition because different minerals crystallize from the melt
الصخور النارية.. دورة التكوين وأهم المعادن
If the approximate volume fractions of minerals in the rock are known, the rock name and silica content can be read off the diagram
استخدامات الصخور النارية
Basic classification scheme for igneous rocks on their 1: crystallizes; 2: olivine and crystallize; 3: pyroxene and crystallize; 4: plagioclase crystallizes
At the bottom of the magma reservoir, a forms Plutonic rock in North America

Close-up of granite an intrusive igneous rock exposed in , India.

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أنواع صخور القشرة الأرضية
If the approximate volume fractions of minerals in the rock are known, the rock name and silica content can be read off the diagram
صخور متحولة
examples , and• At the bottom of the magma reservoir, a forms
فوائد الصخور النارية وأهميتها
examples and Chemical classification also extends to differentiating rocks that are chemically similar according to the TAS diagram, for instance;• Chemical: total alkali-silica content for classification used when modal or mineralogic data is unavailable:• This is not an exact method, because the classification of igneous rocks also depends on other components than silica, yet in most cases it is a good first guess