sedimentary
How are sedimentary rocks formed?
Over thousands and millions of years sediments are "glued" together.
How are igneous rocks formed?
When lava cools and hardened's that when igneous rocks are formed
How are metamorphic rocks formed?
When rocks are subjected to high heat and pressure.
How many steps are in the rock cycle?
There are 10
What is physical weathering?
The process that breaks down rocks.
What are the two main categories of igneous rocks?
Intrusive and Extrusive
What are the two main types of metamorphic rocks?
Foliates and Non-foliates
What caused the rock cycle?
Earth's internal heat, pressure from tectonic processes, ant the effects of water, wind,gravity, and biological (including human) activities.
What is chemical weathering?
Rain water reacting with the mineral grains in rocks to form new minerals.
What minerals are found in igneous rocks?
Feldspar, quartz, and etc.
What kind of minerals are in metamorphic rocks?
Garnet, Corundum, and etc.
How long does the rock cycle take?
Approximately 20 million years.
What are the 4 major agents of erosion?
Water, Wind, Glaciers, and Mass Wasting
Do intrusive rocks coll slowly or quickly?
It cools slowly.
What process are involved in forming metamorphic rocks?
Heat and Pressure
Who discovered the rock cycle?
James Hutton
How long does it take for sedimentary rocks to form?
1 day to millions of years.
Do extrusive rocks cool slowly or quickly?
It cools quickly
What are metamorphic rocks?
Rocks that have undergone a physical or chemical change.
What is another name for the rock cycle?
Geological cycle