Quiz Get out you ESRT and a piece of paper Get out you ESRT and a piece of paper The following questions are from your ESRT. The following questions are.

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Presentation transcript:

Quiz Get out you ESRT and a piece of paper Get out you ESRT and a piece of paper The following questions are from your ESRT. The following questions are from your ESRT. You’ll have a minute per question… You’ll have a minute per question…

Question 1 What is foliation? What is foliation?

Question 2 What are the two types on Metamorphism? What are the two types on Metamorphism?

Question 3 How can you test if a rock is Marble or Quartzite? How can you test if a rock is Marble or Quartzite?

Question 4 I am a foliated metamorphic rock with a coarse texture made from high grade metamorphism. What am I? I am a foliated metamorphic rock with a coarse texture made from high grade metamorphism. What am I?

Answers What is foliation? What is foliation? Foliation is the alignment of minerals Foliation is the alignment of minerals What are the two types on Metamorphism? What are the two types on Metamorphism? Contact and Regional Contact and Regional How can you test if a rock is Marble or Quartzite? How can you test if a rock is Marble or Quartzite? Marble bubbles with acid and Quartzite doesn’t. Marble bubbles with acid and Quartzite doesn’t. I am a foliated metamorphic rock I am a foliated metamorphic rock Gneiss Gneiss

SEDIMENTARY ROCKS

Sedimentary rocks How are sedimentary rocks formed? How are sedimentary rocks formed? What do sedimentary rocks look like? What do sedimentary rocks look like? What do the characteristics tell us about the rock? What do the characteristics tell us about the rock? What are sedimentary rocks used for? What are sedimentary rocks used for? How do you use page 7 of the ESRT for sedimentary rocks? How do you use page 7 of the ESRT for sedimentary rocks?

How are sedimentary rocks formed? Sedimentary rocks are formed through: Sedimentary rocks are formed through: 1. Erosion 2. Deposition 3. Compaction 4. Cementation …At the earth’s surface usually from other rocks.

How are sedimentary rocks formed? Step one is: Step one is: Erosion of elevated land such as mountains

How are sedimentary rocks formed? Step two is: Step two is: Deposition of the eroded material

How are sedimentary rocks formed? Step three is: Step three is: Compaction of buried sediment over time

How are sedimentary rocks formed? Step four is: Step four is: Cementation of the particles into a solid rock Many times sand is the glue!

What do sedimentary rocks look like? Three types of sedimentary rocks Three types of sedimentary rocks 1.Clastic - sediments cemented together 2.Crystalline – Nonclastic (chemical) 3.Bioclastic - organic material

What do sedimentary rocks look like? Clastic rocks are made of particles cemented together such as: Clastic rocks are made of particles cemented together such as: 1. Clay - shale 2. Silt - siltstone 3. Sand - sandstone 4. Pebbles - conglomerate

What do sedimentary rocks look like? Clay/silt shale sand sandstone

What do sedimentary rocks look like? Crystalline rocks are pure cement such as: Crystalline rocks are pure cement such as: 1. Rock salt 2. Rock gypsum 3. Limestone (has fossils)

Crystalline rocks formation These rocks from evaporation of sea water and chemical precipitation. These rocks from evaporation of sea water and chemical precipitation.

What do sedimentary rocks look like? Biological (bioclastic) rocks are formed through organic remains such as: Biological (bioclastic) rocks are formed through organic remains such as: 1. Coal 2. Limestone (has fossils)

What do characteristics tell us about the rock? Grain size is evidence of environment where rock formed Grain size is evidence of environment where rock formed Fossils give clues to past life and climate Fossils give clues to past life and climate

What do characteristics tell us about the rock?

What are sedimentary rocks used for?

How to use ESRT page 7 - sedimentary rocks?

Steps to ID a Sedimentary Rock Texture Texture Clasitc, Crystalline or Bioclastic Clasitc, Crystalline or Bioclastic Grain size Grain size Composition Composition What it looks like What it looks like Fossils? Other features like ripple marks? Fossils? Other features like ripple marks?