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Sample Identifications Now, it is your turn to identify the type of sample igneous rocks using images of rocks and the igneous rock identification chart. Step 1: Go to the website: Earth Science Lab Igneous Rock Identification Step 2: Select a sample at the bottom of the screen. Step 3: Using the image of the rock on the screen, identify the texture and the composition of the rock, and identify the name of the rock. Once you choose texture, composition, and rock, you can check your identification by clicking the "Grade Identification" button. Step 4: Fill the table below for each sample rock Step 5: Repeat Steps 2, 3, and 4 until you complete the table below. Step 6: Upload your completed work to the link provided in Canvas. Sample # 1 2 3 4 5 6 7 8 9 10 11 Texture Phaneritic 12 *You only need to work on and submit this table. Composition Felsic Rock Name

Sample Identifications Now, it is your turn to identify the type of sample igneous rocks using images of rocks and the igneous rock identification chart. Step 1: Go to the website: Earth Science Lab Igneous Rock Identification Step 2: Select a sample at the bottom of the screen. Step 3: Using the image of the rock on the screen, identify the texture and the composition of the rock, and identify the name of the rock. Once you choose texture, composition, and rock, you can check your identification by clicking the "Grade Identification" button. Step 4: Fill the table below for each sample rock Step 5: Repeat Steps 2, 3, and 4 until you complete the table below. Step 6: Upload your completed work to the link provided in Canvas. Sample # 1 2 3 4 5 6 7 8 9 10 11 Texture Phaneritic 12 *You only need to work on and submit this table. Composition Felsic Rock Name

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
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Sample Identifications Now, it is your turn to identify the type of sample igneous rocks using images of rocks and the igneous rock identification chart. Step 1: Go to the website: Earth Science Lab Igneous Rock Identification Step 2: Select a sample at the bottom of the screen. Step 3: Using the image of the rock on the screen, identify the texture and the composition of the rock, and identify the name of the rock. Once you choose texture, composition, and rock, you can check your identification by clicking the "Grade Identification" button. Step 4: Fill the table below for each sample rock Step 5: Repeat Steps 2, 3, and 4 until you complete the table below. Step 6: Upload your completed work to the link provided in Canvas. Sample # 1 2 3 4 5 6 7 8 9 10 11 Texture Phaneritic 12 * You only need to work on and submit this table. Composition Felsic Rock Name
Transcribed Image Text:Sample Identifications Now, it is your turn to identify the type of sample igneous rocks using images of rocks and the igneous rock identification chart. Step 1: Go to the website: Earth Science Lab Igneous Rock Identification Step 2: Select a sample at the bottom of the screen. Step 3: Using the image of the rock on the screen, identify the texture and the composition of the rock, and identify the name of the rock. Once you choose texture, composition, and rock, you can check your identification by clicking the "Grade Identification" button. Step 4: Fill the table below for each sample rock Step 5: Repeat Steps 2, 3, and 4 until you complete the table below. Step 6: Upload your completed work to the link provided in Canvas. Sample # 1 2 3 4 5 6 7 8 9 10 11 Texture Phaneritic 12 * You only need to work on and submit this table. Composition Felsic Rock Name
Lab#06: Identification of Igneous Rocks Igneous Rocks Igneous rocks are one of three major categories of rocks and formed from the cooling and solidification of molten rock matter. Molten rock matters can be solidified at Earth's surface and created extrusive igneous rock. When molten rock material is solidified beneath Earth's surface, it becomes intrusive igneous rock. Igneous rocks can be identified by the determination of the composition and texture of the rock. The key to igneous rock identification is first to determine whether the rock is either felsic (light) or mafic (dark) in composition. Sometimes, rocks are intermediate between felsic and mafic. And, determine the texture of the rock: pegmatitic (with very large crystal, 2 cm or larger), phaneritic (with visible crystal), aphanitic (without visible crystals), porphyritic (with crystals of two different sizes), glassy, vesicular (with bubbly appearance), and pyroclastic (with volcanic fragments). And, tuff is clastic and forms when ash and other particles (tephra) are ejected from a volcano and solidify into rock. Once these two characteristics have been identified, the igneous rock identification chart below can be used to identify the rock name. Formation Texture Extrusive glassy Extrusive vesicular Pumice (small vesicles) Extrusive aphanitic Obsidian Extrusive clastic Felsic Rhyolite NAME: Composition Andesite Intermediate Diorite [Type here] Tuff Intrusive phaneritic Granite Intrusive pegmatite Pegmatite *Porphyry: a variety of igneous rock consisting of large-grained crystals dispersed in a fine-grained matrix or groundmass, formed when a body of magma cooled slowly enough to form crystals and then was engulfed by a fresher magma body, re-melting the existing crystals but not completely, then cooling quickly Mafic Scoria (reddish) or Vesicular Basalt (dark) Basalt* Gabbro Before moving forward to the next, watch video "What is an Igneous Rock?" from YouTube. Make your own note while watching the video. Lab#06
Transcribed Image Text:Lab#06: Identification of Igneous Rocks Igneous Rocks Igneous rocks are one of three major categories of rocks and formed from the cooling and solidification of molten rock matter. Molten rock matters can be solidified at Earth's surface and created extrusive igneous rock. When molten rock material is solidified beneath Earth's surface, it becomes intrusive igneous rock. Igneous rocks can be identified by the determination of the composition and texture of the rock. The key to igneous rock identification is first to determine whether the rock is either felsic (light) or mafic (dark) in composition. Sometimes, rocks are intermediate between felsic and mafic. And, determine the texture of the rock: pegmatitic (with very large crystal, 2 cm or larger), phaneritic (with visible crystal), aphanitic (without visible crystals), porphyritic (with crystals of two different sizes), glassy, vesicular (with bubbly appearance), and pyroclastic (with volcanic fragments). And, tuff is clastic and forms when ash and other particles (tephra) are ejected from a volcano and solidify into rock. Once these two characteristics have been identified, the igneous rock identification chart below can be used to identify the rock name. Formation Texture Extrusive glassy Extrusive vesicular Pumice (small vesicles) Extrusive aphanitic Obsidian Extrusive clastic Felsic Rhyolite NAME: Composition Andesite Intermediate Diorite [Type here] Tuff Intrusive phaneritic Granite Intrusive pegmatite Pegmatite *Porphyry: a variety of igneous rock consisting of large-grained crystals dispersed in a fine-grained matrix or groundmass, formed when a body of magma cooled slowly enough to form crystals and then was engulfed by a fresher magma body, re-melting the existing crystals but not completely, then cooling quickly Mafic Scoria (reddish) or Vesicular Basalt (dark) Basalt* Gabbro Before moving forward to the next, watch video "What is an Igneous Rock?" from YouTube. Make your own note while watching the video. Lab#06
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