Rocks and the Rock Cycle Overview 1 Igneous

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Rocks and the Rock Cycle

Rocks and the Rock Cycle

Overview 1) Igneous – Intrusive, Extrusive 2) Sedimentary – Clastic, Chemical, Organic 3) Metamorphic

Overview 1) Igneous – Intrusive, Extrusive 2) Sedimentary – Clastic, Chemical, Organic 3) Metamorphic – Foliated, Unfoliated

Igneous Rocks n Formed by magma or lava

Igneous Rocks n Formed by magma or lava

Igneous Rock can be…. n Intrusive: cooling of magma n Poryphory -large and small

Igneous Rock can be…. n Intrusive: cooling of magma n Poryphory -large and small crystals

Igneous Rock can be…. n Extrusive: Lava cools n Rapid cooling = Glass n

Igneous Rock can be…. n Extrusive: Lava cools n Rapid cooling = Glass n Gasses from Volcanoes = Holes

Sedimentary Rocks n Made of compacted sediment

Sedimentary Rocks n Made of compacted sediment

3 Types n Clastic: loose pieces (shells, pebbles) *Fizz Test n Chemical: precipitate (stalagtite

3 Types n Clastic: loose pieces (shells, pebbles) *Fizz Test n Chemical: precipitate (stalagtite in caves) n Organic: dead plants and animals (coal)

Sedimentary Rock Features n Stratification: layers in rock n Ripple Marks n Mud Cracks

Sedimentary Rock Features n Stratification: layers in rock n Ripple Marks n Mud Cracks n Fossils n Concretions: lumps or nodules inside the rock

Metamorphic Rocks Igneous or Sedimentary Rock with extra heat and pressure Contact (magma) or

Metamorphic Rocks Igneous or Sedimentary Rock with extra heat and pressure Contact (magma) or Regional Metamorphism (plate tectonics)

2 Types n Foliated: wavy layers and bands n Nonfoliated: no wave layers or

2 Types n Foliated: wavy layers and bands n Nonfoliated: no wave layers or bands

How does the Rock Cycle Relate to Plate Tectonics? *Rocks are neither created nor

How does the Rock Cycle Relate to Plate Tectonics? *Rocks are neither created nor destroyed, but changed from one rock type to another. *Driven by Heat, Mechanical Energy, Gravity http: //www. science. ubc. ca/~geol 202/rock_cycle/rockcycle. html March 2000

Rock Cycle

Rock Cycle

Ro ck Cycl e weathering Metamorphic pre ss ure g ltin me , h

Ro ck Cycl e weathering Metamorphic pre ss ure g ltin me , h ea t Sedimentary Igneous

Other Terms You Need to Know n Graded Bedding -sediments become finer from bottom

Other Terms You Need to Know n Graded Bedding -sediments become finer from bottom to top (Bottom big, Top small) n Physical vs. Chemical Weathering – break down rock n Deposition – Sediments laid down/ deposited

Short Video Clips n http: //www. youtube. com/watch? v=m. QGMg. R_5 jvc&feature=play n n

Short Video Clips n http: //www. youtube. com/watch? v=m. QGMg. R_5 jvc&feature=play n n n er_detailpage http: //www. youtube. com/watch? v=MBe. XRRTGj. NE&feature=pla yer_detailpage http: //www. youtube. com/watch? feature=player_detailpage&v=fb Qla 7 cd. Jr. Y http: //www. youtube. com/watch? v=x. Exd. EXOa. A 9 A&feature=play er_detailpage http: //www. youtube. com/watch? feature=player_detailpage&v=IA xj 2 ob_Jo. U http: //www. youtube. com/watch? v=de. C 5 af 9 AW 6 w&feature=play er_detailpage http: //www. youtube. com/watch? v=m. Ei 0 ya. IFEqg

Review Questions – part 1 n 1) What is the difference between a rock

Review Questions – part 1 n 1) What is the difference between a rock and n n a mineral? 2) What are the 3 Rock Types and how are they formed? 3) What are the 2 types of Igneous Rocks? 4) What are the 3 types of Sedimentary Rocks? 5) What are the 2 types of Metamorphic Rocks?

Review Questions – part 2 n 6) What are some clues that a rock

Review Questions – part 2 n 6) What are some clues that a rock is igneous…sedimentary…metamorphic? n 7) Why is sedimentary rock the only one that has fossils? n 8) How does the rock cycle relate to plate tectonics? n 9) What is…graded bedding, weathering, deposition…. ?

CE Question n What process is responsible for changing sediments into sedimentary rock? n

CE Question n What process is responsible for changing sediments into sedimentary rock? n A) Foliation n B) Cementation n C) Intrusion n D) Stratification

CE Question n What process is responsible for changing sediments into sedimentary rock? n

CE Question n What process is responsible for changing sediments into sedimentary rock? n A) Foliation n B) Cementation n C) Intrusion n D) Stratification

CE Question n How would igneous rock change to metamorphic rock? n A) Cooling

CE Question n How would igneous rock change to metamorphic rock? n A) Cooling and solidification n B) Heat and pressure n C) Stratification and foliation n D) Graded bedding

CE Question n How would igneous rock change to metamorphic rock? n A) Cooling

CE Question n How would igneous rock change to metamorphic rock? n A) Cooling and solidification n B) Heat and pressure n C) Stratification and foliation n D) Graded bedding

CE Question n Classify these rocks as metamorphic, igneous, or sedimentary

CE Question n Classify these rocks as metamorphic, igneous, or sedimentary

Explain where the 3 rock types would form

Explain where the 3 rock types would form

Discovery Ed. Videos n https: //app. discoveryeducation. com/play er/view/asset. Guid/792 BF 7 F 4

Discovery Ed. Videos n https: //app. discoveryeducation. com/play er/view/asset. Guid/792 BF 7 F 4 -148 B 41 E 8 -8620 -6 A 54543 F 4 CCE n https: //app. discoveryeducation. com/play er/view/asset. Guid/8 D 9 FF 45 D-8 D 934902 -88 FC-91 BADB 900522