Download presentation
Presentation is loading. Please wait.
1
Thinking about relationships among the major rock groups
The Rock Cycle Thinking about relationships among the major rock groups
2
Major Rock Groups Igneous Sedimentary Metamorphic
Formed from a melt (molten rock) Intrusive: slow cooling and crystallization Extrusive: quick cooling at the surface Sedimentary Formed at the Earth’s surface Clastic (Mineral Fragments or grains, clays) Chemical (crystalline chemical/biochemical precipitates) Metamorphic Changed by pressure, temperature.
3
Fig. 2.9 MAGMA
4
IGNEOUS Crystallization MAGMA
5
IGNEOUS INTRUSIVE Crystallization MAGMA
6
EXTRUSIVE IGNEOUS INTRUSIVE Crystallization MAGMA
7
Weathering Extrusive IGNEOUS Intrusive Crystallization Uplift MAGMA
8
SEDIMENT SEDIMENT Extrusive IGNEOUS Intrusive Uplift MAGMA Weathering
Crystallization Uplift MAGMA
9
SEDIMENT Extrusive IGNEOUS Intrusive SEDIMENTARY Uplift MAGMA Erosion
Weathering Transport Deposition Extrusive IGNEOUS Intrusive SEDIMENTARY Crystallization Uplift MAGMA
10
SEDIMENT Extrusive IGNEOUS Intrusive SEDIMENTARY Uplift MAGMA Erosion
Weathering Transport Deposition Extrusive IGNEOUS Intrusive SEDIMENTARY Crystallization Uplift MAGMA
11
SEDIMENT Extrusive IGNEOUS Intrusive SEDIMENTARY METAMORPHIC Burial
Erosion SEDIMENT Weathering Transport Deposition Extrusive IGNEOUS Intrusive SEDIMENTARY Increased P&T METAMORPHIC Crystallization Burial Uplift MAGMA
12
Can you see any shortcuts?
Erosion SEDIMENT Weathering Transport Deposition Extrusive IGNEOUS Intrusive Can you see any shortcuts? SEDIMENTARY Increased P&T METAMORPHIC Crystallization Melting Burial Uplift MAGMA
13
SEDIMENT Extrusive IGNEOUS Intrusive SEDIMENTARY METAMORPHIC Burial
Erosion SEDIMENT Weathering Transport Deposition Extrusive IGNEOUS Intrusive SEDIMENTARY Increased P&T METAMORPHIC Crystallization Melting Burial Uplift MAGMA
14
Geology Kitchen 3 Types of Rocks
15
Geology Kitchen 3 Types of Rocks
16
In Conclusion… The rock cycle demonstrates the relationships among the three major rock groups It is powered by the interior heat of the Earth ss well as the energy from the sun It involves processes on the Earth’s surface as well as the Earth’s interior It connects the “hydrologic cycle” with the “tectonic cycle”.
17
SEDIMENT Extrusive IGNEOUS Intrusive SEDIMENTARY METAMORPHIC Burial
Erosion SEDIMENT Weathering Transport Deposition Extrusive IGNEOUS Intrusive SEDIMENTARY Increased P&T METAMORPHIC Crystallization Melting Burial Uplift MAGMA
18
p. 177 1-6 Complete Sentences Now!
19
How does Igneous Rock Form?
When lava or magma cools
20
Where does lava or magma come from?
Deep in the earth Mantle Rocks and minerals melt Magma or lava rises through volcanoes
21
Intrusive Igneous Forms inside the earth Lava cools slowly
Large crystals or grains you can see
22
Extrusive Igneous Lava cools quickly Small crystals can’t be seen
Usually solid color
23
Classification of Igneous Rock
Ask yourself, “Is it intrusive (big crystals) or extrusive (small crystals)? What type of minerals are in them? Either: Felsic Intermediate Mafic
24
Examples of Igneous Rock: Intrusive
Granite is an intrusive igneous rock. It is made mostly of feldspar, quartz, and mica or hornblende.
25
Examples of Extrusive Igneous Rock
Basalt Andisite Pumice Obsidian
26
This is a sample of breccia, a coarse-grained sedimentary rock with coarse, angular fragments. Compare the grain sizes to the centimeter scale.
27
This is a sample of limestone, a sedimentary rock made of calcium carbonate that formed under water directly or indirectly from the actions of plants and animals. This fine-grained limestone formed indirectly from the remains of tiny marine organisms.
28
This is a sample of sandstone, a sedimentary rock that formed from sand grains in a matrix of very fine-grained silt, clay, or other materials. The grains in this sample are mostly the feldspar and quartz minerals, which probably accumulated near the granite from which they were eroded.
29
This is a sample of marble, a coarse-grained metamorphic rock with interlocking calcite crystals. The calcite crystals were recrystallized from limestone during metamorphism.
Similar presentations
