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What processes drive the rock cycle? Where do each of the different rock types form?

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Presentation on theme: "What processes drive the rock cycle? Where do each of the different rock types form?"— Presentation transcript:

1 What processes drive the rock cycle? Where do each of the different rock types form?

2  Clastic  fragments of other rocks and minerals.  The size and shape of the rock fragments helps determine their names  Conglomerate, sandstone and shale

3  Organic  Forms from organic shells or skeletal remains that cement into rock. fossiliferous limestone

4  Chemical  Forms from chemicals dissolved in water  Limestone

5 + Heat and Pressure =

6  Foliated-  Metamorphic rocks that have ribbon- like layers in their textures.  Gneiss (nice)  Common in NJ

7 Non-foliated Metamorphic rocks made of only one or two minerals and have no layering.  Marble  Limestone + Heat and Pressure = Marble

8  Obsidian  Forms when magma comes to surface and cools = extrusive  Glassy, no crystals  Volcanic glass

9  Granite  Forms when magma cools below the surface= intrusive

10  Scoria  Volcanic rock  Many gas bubbles

11 What processes drive the rock cycle? Where do each of the different rock types form?


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