Term
|
Definition
| Rocks that cool slowely, producing large crystals, thus are coarse grained. These rocks are normally felsic. Includes rhyolite and granite. |
|
|
Term
|
Definition
| These rocks cool fast, and have small crystals, thus having fine grains. These rocks are mafic and include basalt and gabbro. |
|
|
Term
|
Definition
| Felsic rock that is coarse grained. Minerals present are quartz, orthoclase, biotite, and sodium plagioclase. |
|
|
Term
|
Definition
| Felsic rock that is fine grained. Minerals present include quartz, orthoclase biotite, and sodium plagioclase. |
|
|
Term
|
Definition
| Intermediate rock that is coarse grained. Minerals present include sodium plagioclase, amphibole, pyroxene, and biotite. |
|
|
Term
|
Definition
| Intermediate rock that is fine grained. Minerals present inlcude sodium plagioclase, amphibole, pyroxene, and biotite. |
|
|
Term
|
Definition
| Mafic rock that is coarse grained. Minerals present include calcium plagioclase, pyroxene, and olivine |
|
|
Term
|
Definition
| Mafic rock that is fine grained. Minerals present include calcium plagioclase, pyroxene, and olivine. |
|
|
Term
|
Definition
| Table showing in what order minerals will crystalize as temperature decreases. Has a discontinuous side and a continuous side. Top is mafic and bottom is felsic |
|
|
Term
|
Definition
| The type of melt depends on if water is present. water highers melting temperature causing rocks to melt further down, then crystalize before reaching surface. Dry melts are opposite. |
|
|
Term
|
Definition
Basaltic-low silica, dark
Adesitic- medium silica, greyish
Granatic- high silica, light |
|
|
