Igneous rocks_Prelab Report_02162021-1

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Apr 3, 2024

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Geology Name: Kylie Lopez_________________ Igneous Rocks and Volcanoes Prelab Report Complete your responses in a color other than black or red . Tasks 1. While watching the video, complete the flow chart ( ONLY the Igneous Rocks portion! ): 2. What is the difference between lava and magma ? Magma is a term used for molten rock that is underground while lava is a term used for molten rock that breaks through the Earth’s surface. 3. A rock with mineral crystals large enough to see with the naked eye (>1mm), like granite, has a phaneritic texture . Which type of igneous rock is phaneritic, intrusive or extrusive? I’m a bit confused with what this question is asking but intrusive igneous rock. 1

Igneous Rocks and Volcanoes Prelab Report 4. A rock with mineral crystals to small to see with the naked eye (<1mm), like basalt, has an aphanitic texture . Which type of igneous rock is aphanitic, intrusive or extrusive? Extrusive igneous rock. 5. Which of the igneous rocks below are familiar to you, and why? The igneous rocks below that are familiar to me are granite and obsidian. These to are familiar to me because of my sister, she loves learning about rocks and crystals.  Peridotite  Basalt  Gabbro  Diorite  Andesite  Granite  Rhyolite  Obsidian 2

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