Download Chapter 3 Section 7 Notes How are metamorphic rocks classified

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Chapter 3 Section 7 Notes How are metamorphic rocks classified? Name: _____________________________________________
Date: October 7, 2015 Objective: _______________ the _______________ between foliated and nonfoliated _______________ rocks. Key Terms foliated:​
_____________________________________________________________________ ____________________________________________________________________________ nonfoliated:​
_________________________________________________________________ ____________________________________________________________________________ Classifying Metamorphic Rocks Petrologists _______________ metamorphic rocks _______________ on the _______________ of the rock. Metamorphic rocks have _______________ kinds of _______________, foliated and nonfoliated. The _______________ of a metamorphic rock is _______________ by the _______________ of its mineral _______________. CLASSIFICATION OF METAMORPHIC ROCKS Original Rock Metamorphic Rock Texture Granite, shale Gneiss Foliated Granite, shale, basalt Schist Foliated Shale Slate Foliated Sandstone Quartzite Nonfoliated Limestone Marble Nonfoliated 1. CLASSIFY: How are metamorphic rocks grouped? ____________________________________________________________________________
____________________________________________________________________________ Banded Metamorphic Rocks The _______________ crystals in some metamorphic rocks are _______________ in _______________. The _______________ of a metamorphic rock with _______________ arranged in _______________ is called foliated. Foliated rocks _______________ to _______________ along their mineral crystal _______________. Foliated metamorphic rocks are _______________ when _______________ rocks are placed under great _______________ and _______________. Under this great heat and pressure, the _______________ in the rocks _______________ and recrystallize into _______________ that form _______________. Gneiss (NICE) is a foliated _______________ rock. Gneiss is formed _______________ granite is put under great _______________ and _______________. Schist is another rock that has _______________ of recrystallized _______________. Schist is formed from _______________, basalt, or _______________. Slate is also formed from shale. 2. COMPARE: How are gneiss and schist similar? ____________________________________________________________________________
____________________________________________________________________________ Metamorphic Rocks Without Bands The _______________ of a metamorphic rock that does _______________ have its minerals _______________ in bands is nonfoliated. Nonfoliated metamorphic rocks do _______________ _______________ in _______________. _______________ and quartzite are nonfoliated metamorphic rocks. Marble is _______________ from _______________. Marble contains _______________ mineral _______________ of calcite. Quartzite is _______________ from _______________ put under great _______________ and _______________. Quartzite has _______________ crystals or _______________. 3. IDENTIFY: Which metamorphic rock has large crystals of quartz formed from sand? ____________________________________________________________________________
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