Feb 13th Flashcards
Earth is a what kind of planet
Layered
Geology is the
Study of earths processes
The crust
Surface of the earth
The mantle
Middle of the earth
Core
Center of the earth
Core is made of
Iron
Density is
Mass dived my volume
Weight is
Mass times gravity
Three common types of rocks found on continents
Granite andesite and diorite
Rocks are made of
Minerals
The crust and mantle are composed of
Silicates
Silicates are rocks made of
Aluminum and silica
The three common rocks contain
Feldspar
Feldspar is
The most common rock forming mineral on the conditions
Minerals are
Solid inorganic substances that are naturally occurring and with a define crystal structure
Plate tectonics is a
Theory explaining the structure and process of the earth
The seven major plates are
North American,south American,Eurasian,African,Australian Indian,Antarctic and Pacific.
Where margins meet
Are regions of severe geologic
There are three types of
Geologic boundaries
Divergent boundaries
Refer to an areas that have been split apart
Magma can rise
Along the spilt
Convergent boundaries refer to areas that have been
That have been pushed together
Transform boundaries occur when
Two plates scrap against one another
A fault is
A surface along with a rock body has broken and been moved
Magma is
Molten rock beneath the surface of the earth
When magma reaches the surface of the earth it is called
Lava
Normal faults
Occur when a body of rock is spilt apart
Reverse faults occur when
Two bodies of rock are pushed together
Igneous rocks form from
Melted rocks witch have hardened
Metamorphic rocks are rocks
That have been changed due to tremendous heat.
Sedimentary rocks can form
Can form from biologic accumulation or cementation of pre-exiting pieces of rock
Shield volcanos are
Made of lava and have a broad low profile
Cinder cones are
Made of larger material blown from larger material blown from the volcano
Composite cones are
Made of pyroclastic material and lava
The crust and mantle are composed of
Silicates
Silicates are rocks made of
Aluminum and silica
The three common rocks contain
Feldspar
Feldspar is
The most common rock forming mineral on the conditions
Minerals are
Solid inorganic substances that are naturally occurring and with a define crystal structure
