Plate Boundaries
Plates that diverge or move apart from each other
DIVERGENT
Coal is formed from
plant remains decomposed under pressure.
melted and cooled metamorphic rock.
natural gas subjected to heat.
seas that have evaporated.
plant remains decomposed under pressure.
The tendency for a mineral to split along specific planes of weakness to form, smooth flat surfaces.
CLEVAGE
Alfred Wegener thought which 2 continents looked like puzzle pieces that could fit together?
South America and Africa
Rock that forms when existing rocks are changed by heat, pressure, or chemicals beneath the Earth's surface.
Metamorphic ROCK
Cracks or breaks in earth's crust where plates slip past each other
FAULTS
What type of rock forms from heat and pressure deep inside earth's surface?
Metamorphic
If a mineral does not break smoothly, and leaves an uneven surface:
FRACTURE
What was Glossopteris?
An ancient plant, whose fossils have been found on 5 different continents
Is magma below or above ground
BELOW
Continental plate collides with another continental plate creates
FOLDED MOUNTAINS
What type of rock forms from lava that has cooled at or near earth's surface?
Igneous
The softest minerals is__________
TALC
What cold environment feature was evidence to support the theory that the continents used to be joined?
Glacial grooves/SCRATCHES were found on different continents
What are Igneous Rocks that form as magma cools underground called
INTRUSIVE ROCKS
Occurs when a less dense plate slides under a more dense plate
SUBDUCTION
What type of rock is formed from slow cooling magma UNDER the earth's surface?
Intrusive Igneous
COLOR
What was Pangaea?
It was a supercontinent, made of all of the landmasses on Earth.
The seated sculpture of President Lincoln inside the Lincoln Memorial was carved out of white Georgia marble (formed from Earth's pressure and heat). What type of is marble?
Metamorphic
The type of geological event that occurs under transform boundaries
EARTHQUAKES
Identify the series of geologic processes that can transform sediment into shale (sedimentary rock), shale into slate (metamorphic), and slate into magma
Compacting and cementing; heat and pressure; melting
A nonliving solid material that has a definite chemical make up and is found in Earth's outermost layer.
MINERAL
What are two pieces of evidence used to support the theory of continental drift?
Rocks and Fossils
Which BEST describes the rock cycle?
New rocks form from older rocks.
Lunar rocks change into terrestrial rocks.
Rocks in the ocean become rocks on land.
Layers of rock are broken by faults.
New rocks form from older rocks.