Term
|
Definition
|
|
Term
|
Definition
| Cooled on the earth's surface |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
| Mineral crystals replace each other as a rock cools |
|
|
Term
|
Definition
| visible crystals, internal cooling |
|
|
Term
|
Definition
| crystals not visible, cooled very rapidly on the earth's surface |
|
|
Term
|
Definition
| some crystals formed, and then the rock was expelled and cooled very rapidly |
|
|
Term
|
Definition
| igneous intrusive rock that forms under the earth, displacing existing rock layers |
|
|
Term
|
Definition
| sheet intrusion that cuts across existing layers |
|
|
Term
|
Definition
| horizontal sheet intrusion |
|
|
Term
|
Definition
| high viscosity, ropy lava |
|
|
Term
|
Definition
| rough, rubbly surface (very high viscosity) |
|
|
Term
|
Definition
|
|
Term
| pyroclastics / pyroclastic flow |
|
Definition
| superheated gas and fragment flow |
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
|
|
