Rocks: Materials of the Solid Earth | |
What helps us understand the origin of rocks and how they are connected? | |
What type of rock forms as magma cools and crystallizes? | |
Molten rock generated by partial melting of rocks in Earth's mantle and in the lower crust | |
What is molten rock that reaches the surface called? | |
Igneous rocks that form when molten rock solidifies at the surface | |
Igneous rocks that form at depth are termed what? | |
What describes the overall appearance of an igneous rock based on the size and arrangement of its interlocking crystals? | |
Igneous rocks that form rapidly at the surface or as small masses within the upper crust have what type of texture? | |
Rocks containing voids are said to display what texture? | |
Large crystals embedded in a matrix of smaller crystals has what type of texture? | |
Rapid cooling may generate a rock having what texture? | |
Igneous rocks in which quartz and potassium feldspar are the dominant minerals have what composition? | |
Geologists refer to granitic rocks as being what? (Rhymes with gelsic) | |
Rocks that contain substantial dark silicate minerals are said to have what composition? | |
Basaltic rocks containing a high percentage of dark silicate minerals are refered to as what? | |
Rocks with a composition between granitic and basaltic are said to have what composition? | |
Peridotite is composed almost entirely of dark silicate minerals, its chemical composition is referred to as what? | |
At successively lower temperatures, other minerals begin to crystallize. This arrangement of minerals is known as what? | |
Occurs when the earlier formed minerals are more dense than the liquid portion and sink toward the bottom of the chamber | |
The formation of one or more secondary magmas from a single parent magma | |
Comments