Geology Question

Description

Lab Manual Chapter 5. You will want to do this lab after reading the Session 4 lectures and watching the Lab PowerPoint presentations.

Materials

• Lab Manual
• Rock & Mineral Kit 470015-410
• Igneous rock sample set from lab kit (for Activity 5.7)

Objectives

1. Be able to identify and interpret the origin of igneous rock textures and classify igneous rocks on the basis of their mineralogical composition and texture.
2. Apply your knowledge of igneous rock textures, minerals, mafic color index (MCI), Bowen’s Reaction Series, and the origin of magma to classify and infer the origin of igneous rock samples.

Procedure:

1. Read Lab #5
2. Your lab will be done on a MS Word Document for the questions and your identification of igneous rocks will be done on an Excel Chart. Both the MS Word document and Excel Sheet will come to me in one upload. You will use this format on all labs.
3. Activity 5.1 (Part A only)
4. Activity 5.7: Identification of Igneous Rocks: You will use your igneous specimens from you rock kit and the lab tools that came with the rock kit.

• Use the PowerPoint for the Lab for helping with the identification of your igneous rock specimens.

Place the igneous rock samples on a protected surface. Separate the rocks by their texture: glassy, aphanitic, phaneritic, porphyritic, vesicular, and pyroclastic.

• Prepare an EXCEL spreadsheet for your identification of igneous rocks that copies page 142-143 in your lab manual (12th edition). It must be Excel Sheet, not a MS Word Document.
• Identify the samples of igneous rocks and record the texture, mineral composition (for all samples), other properties, rock name, and proposed rock history in the appropriate spaces.
• For the mineral compositions state whether its felsic, intermediate or mafic AND the approximate mineral content for the main 3 minerals seen in your sample.
• Make sure you list the specimens in correct numbering order as they are numbered on our specimens… on the Excel chart that you will make. You will want to have both of these assignments completed and saved so that you can submit them at same time on the same upload to me.