Rocks and the Rock Cycle Overview 1 Igneous
- Slides: 25
Rocks and the Rock Cycle
Overview 1) Igneous – Intrusive, Extrusive 2) Sedimentary – Clastic, Chemical, Organic 3) Metamorphic – Foliated, Unfoliated
Igneous Rocks n Formed by magma or lava
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 Gasses from Volcanoes = Holes
Sedimentary Rocks n Made of compacted sediment
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 n Fossils n Concretions: lumps or nodules inside the rock
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 bands
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
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 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 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 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 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 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 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 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 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
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 -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
- Igneous metamorphic and sedimentary
- Igneous rocks metamorphic rocks and sedimentary rocks
- What is a rock cycle
- Rock cycle song (sedimentary igneous metamorphic)
- Organic sedimentary rocks
- Igneous rocks extrusive and intrusive
- Intrusive vs extrusive igneous rocks
- Concept map for igneous rock
- What is cleavage in rocks
- Concept map for igneous rocks
- Massive igneous rock
- Three types of igneous rocks
- Concept map igneous rocks
- Rocks classified
- Principle of inclusions
- Pumice extrusive or intrusive
- Rock cycle
- Pumice crystal size
- Extrusive igneous rocks
- Scoria silica content
- What is igneous rock
- Concept map for igneous rocks
- Iugs classification of igneous rocks
- The formation of igneous rocks
- I
- Clastic vs non clastic