Label the diagram using lava(L) & magma(M) Name:__________________________________________Date:_____________ Block: 1 2 3 4 Igneous Rock Notes Igneous rocks when_____________________________________________________________________ ______________________________________________________________________________________ • The type of Igneous rock formed depends on the __________________ of the ________________ • Of all of the compounds present in Magma, _____________________ is the most abundant and has the greatest effect on the magma characteristics. Three Types of Magma: 1. 2. 3. Low Silica High Left Branch: Iron rich minerals that undergo abrupt changes as magma cools and crystalizes Right Branch: Feldspar undergoes a continuous change of composition. Start out as calcium rich and become sodium rich Label the diagram using lava(L) & magma(M)

Intrusive Igneous Rock Extrusive Igneous Rock Igneous rock mineral composition: (what minerals are found in igneous rock) Igneous rocks contain many minerals, the rocks can be _________________ or ___________________ Felsic * Pic: Mafic * Pic: There are _____ types of igneous rock (the prefix in means to move into….ex means to move out of) Intrusive Igneous Rock __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Extrusive Igneous Rock __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Igneous rocks are classified by their __________________ ____________ Distribution of the ____________ or ____________ that make up the rock Cools Quickly __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________ Cools Slowly __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

Porphyritic Rocks: _____________________________________________________________________ ______________________________________________________________________________________ Example: Vesicular Rocks: _______________________________________________________________________ Veins: ________________________________________________________________________________ Pegmatites: ___________________________________________________________________________ _____________________________________________________________________________________ Kimberlites: ___________________________________________________________________________ Example: Diamonds Igneous Rocks in Construction: Interlocking grain texture makes them strong, resistant to weather

Review Questions Which is the most common igneous rock?__________________________________ Why does pumice float in water?_________________________________________ _________________________________________________________________________ Why does lava cool more quickly than magma?____________________________ What determines the texture of igneous rock?______________________________ 5. A batholith forms from a large magma chamber that slowly cools deep beneath the earth’s surface. What type of texture is this igneous rock formation most likely to have?_____________________________