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Chunky Iggy Rocks. All igneous rocks are formed from liquid rock known as __________?. Magma. The process of hardening rock is known as __________?. Solidification. Magma that extrudes above Earth’s surface is called __________?. Lava.
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All igneous rocks are formed from liquid rock known as __________? • Magma
The process of hardening rock is known as __________? • Solidification
Magma that extrudes above Earth’s surface is called __________? • Lava
Igneous rocks that cool on Earth’s surface are called __________? • Extrusive
Extrusive igneous rocks have a fine grained or glassy __________? • Texture
Igneous rocks that cool below Earth’s surface are called __________? • Intrusive
Igneous rocks that are light in color, lower in density and rich in Al and Si are said to have a __________ composition. • Felsic
Intrusive igneous rocks have a ______ grained texture. • Coarse
Igneous rocks with gas pockets are said to have a __________ texture. • Vesicular
Igneous rocks that are dark in color, high in density and rich in Fe and Mg are said to have a __________ composition. • Mafic
An igneous rock with a glassy texture would mean that the rock cooled __________ Earth’s surface. • Above
An igneous rock with a vesicular texture would mean that the rock cooled __________ Earth’s surface. • Above
Another word for intrusive is _________________ . • Plutonic
This igneous rock is felsic with a coarse texture. • Granite
Do intrusive igneous rocks ever have a vesicular texture? • No
This is the only Felsic igneous rock that is black. • Obsidian
Olivine is found only in (Felsic, Mafic) igneous rocks. • Mafic
Place the numbers of these igneous rocks in descending crystal size.1)Diorite, 2)Pegmatite, 3)Basalt • 2, 1, 3
The Earth’s oceanic crust is made up of this igneous rock. • Basalt
What is the origin and rate of formation? • Extrusive, fast