1
How are rocks classified (4)
Texture, streak, hardness, composition
This type of igneous rock is formed from lava ON the earth's surface.
Extrusive rock
What is an intrusive rock
Form inside or near earths surface, longer cooling time, magma
what is chemical
powdery, evaporation or precipitation from solution processes
what does non-foilated mean
mineral grains show no banding/layers
What determines the crystal size of an Igneous rock
time, long time big crystal, small time small crystal
There are 3 types of lava/magma what are they
Felsic/Granitic, Andesitic/Intermediate, Mafic/Basaltic
What is a extrusive rock
Form outside or on earths surface, shorter cooling time, lava
What is organic
fossils present
What are the parent daughter rocks (4)
Limeston-Marble
Sandstone-Quartzite
Shale-Slate
White Granite-Gneiss
In what type of rock would you find fossils
Sedimentary rocks
What is Felsic/granitic
light weight, less dense, light colors, includes glassy (everything is light)
How do sedimentary rocks form
Processes of evaporation, cementation, compaction, and precipitation
How do metamorphic rocks form
by excessive heat and pressure, recrhysallization
How do Igneous rocks form
Formed when magma cools and solidifies
95% of the earths crust is made out of what rock
Igneous rocks
What is Andesitic/intermediate
Medium weight, medium color, medium density (everything is medium)
What are the 3 classifications of sedimentary rocks
Clastic(detrital), chemical, organic
what are the classifications of metamorphic rocks
Foliated and non-foilated
Good job
Yay
Igneous rock that formed from magma and cooled very slowly UNDERNEATH the earth's surface is called
Intrusive rock
What is Mafic/Basaltic
Heavy weight, dark colors, more density (everything heavy)
What is clastic
looks glued together, compaction and cementation of sediment
what is foilated mean
mineral grains in bands and layers
Your doing amazing
Go go