Sedimentary+Rock+Identification+Lab

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School

Liberty University Online Academy *

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Course

211

Subject

Geology

Date

May 18, 2024

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pdf

Pages

4

Uploaded by disneygirl1995

1 SEDIMENTARY ROCK IDENTIFICATION LAB Name: Date: Objective To identify sedimentary rocks based on grain size, texture, and composition Materials Clastic/Chemical Sedimentary Rock Charts Mohs Hardness Scale (Optional, used in previous lab) Purpose (5 pts) Write 1–2 sentences stating the purpose of this lab. What do you expect to learn? What do you want the outcome to be? Hypothesis (5 pts) Write your hypothesis for this lab. It should be 1 sentence and be an if/then statement. (Remember this is your educated guess as to what will happen in this lab.) Procedure 1. Read through all of the steps in the procedure as well as the Data section. Then complete the Purpose and Hypothesis sections. 2. Using the information provided in the Data table and the Clastic and Chemical Sedimentary Rock Chart complete the Data table and name each sedimentary rock. 3. Complete the Observations , Analysis and Conclusion , and Application sections before submitting the lab assignment.
2 Data (60 pts) You may want to refer to the Mohs Hardness scale chart from the Mineral Identification Lab to help you decipher the composition based on hardness. You will also want to keep in mind that calcite reacts with hydrochloric acid. (2 pts per blank = 60 pts total) Image Number Category (Clastic, Chemical, Organic/Biologic) Texture Hardness Composition or Sediment Name Rock Name 1 Fine to coarse Crystalline 3 2 Organic/ Biologic 3 3 Fine to coarse Crystalline 2 Calcite and some shell and skeleton fragments 4 3 5 Very Fine (< 1/256 mm) N/A Mud 6 N/A 7 > 2 mm N/A
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