Rock Cycle Process
How to become magma
melting
Metamorphic Rock --> heat and pressure --> Metamorphic Rock
YES!
Igneous Rock to Metamorphic rock
I.R. -> Heat & Pressure -> M.R
What is the Law of Superposition?
The older rocks are found deeper in the earth and younger rocks are found closer to the top.
Where does the rock cycle start and end?
There is no start or end... it's a cycle!
How to become Metamorphic Rock
Heat and Pressure
Metamorphic --> melting --> magma --> cooling inside the crust --> Extrusive Igneous Rock
NO
Metamorphic --> melting --> magma --> COOLING OUTSIDE THE CRUST --> Extrusive Igneous Rock
Metamorphic to Igneous Rock
M.R -> melt -> magma -> cool -> I.R.
What is a fault?
A rock formation that has been broken by the movement of Earth
Which rock type would you most likely find a fossil in?
Sedimentary rocks
How to become Sediment
Weathering, Erosion and Deposition
Sedimentary rock --> heat and pressure --> magma --> cooling --> Metamorphic rock
NO
Sedimentary rock --> HEAT AND PRESSURE --> Metamorphic rock
Igneous to Sedimentary Rock
I.R. -> Weathering, Erosion -> Sediment -> Compaction/ Cementation -> S.R.
Relative dating....
A. gives a date of when the rock was formed.
B. determines the chronological sequence of events of rocks.
C. identifies the rock names
B.
Relative dating determines the chronological sequence of events of rocks.
How are the three rock types classified?
By how they form
How to become Igneous Rock
Magma Cooling
Igneous rock --> weathering/erosion --> Sedimentary rock --> heat/pressure --> Metamorphic rock
NO
Igneous rock --> weathering/erosion --> SEDIMENT--> COMPACTION/ CEMENTATION --> Sedimentary rock --> heat/pressure --> Metamorphic rock
Magma to Metamorphic Rock
Magma -> cool -> I.R. -> heat & pressure -> M.R.
An intrusion rock is always....
A. older than the rock it intrudes on.
B. younger than the rock it intrudes on.
B.
younger than the rock it intrudes on.
Which type of Igneous Rock would have larger crystals?
Intrusive Igneous
How to to become Sedimentary Rock
Compaction/ Cementation
Igneous Rock --> heat & pressure --> Metamorphic Rock --> weather/erosion --> sediment --> compaction/ cementation --> Sedimentary Rock --> melt --> magma --> cool --> Igneous Rock
YES!
Sediment to intrusive Igneous Rock
Sediment -> Compaction/ Cementation -> Sedimentary Rock -> melting -> magma -> cooling inside the crust --> Intrusive Igneous Rock
If you see a rock that has intruded into another rock layer, what rock type is it most likely to be?
Igneous Rock
What are the TWO main rock types that are found in Wellesley?
** Double Points for the rock names! **
Igneous and Sedimentary Rocks
** Names**
Dedham Granite
Roxbury "Puddingstone" Conglomerate