Beds 7-10 1 Beds Background Information: Relative dating is the process of determining if one rock or geologic event is

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Beds 7 10 1 Beds Background Information Relative Dating Is The Process Of Determining If One Rock Or Geologic Event Is 1 (435.29 KiB) Viewed 101 times

Beds 7-10 1 Beds Background Information: Relative dating is the process of determining if one rock or geologic event is older or younger than another, without knowing their specific ages-i.e., how many years ago the object was formed. Geologists have established a set of principles that help to piece together the geologic history of the Earth. This activity will help you to understand how to apply the principles of relative dating and how to connect knowledge you have learned. 9-1 Fault A Conglomerate Sandstone Shale Dike A Fault B Dike B Batholith Put the events seen in the above figure in order and then explain the relative dating technique you used to determine its age. Events to put in order in the table: Uplift and Erosion (use this twice), Fault A, Fault B, Dike A, Dike B, Batholith, Deposition of Beds 1-6, and Deposition of Beds 7 - 10 Y
Here are the principles that you should use to determine their order (not all of the principles will be used and some can be used more than once): 2. Event from Oldest to Youngest 3. 1. Beds 1-6 4. To help you understand what I am looking for I did the first line of the table for you. 5. 6. Superposition 7. Cross-cutting relationships Original horizontality 8. Inclusions 9. Original continuity Unconformities Superposition Fossil succession Relative Dating Principles Used to Determine Order
After filling in the table, answer the following questions. Unless specified, each response should be a minimum of 2-3 sentences in length. 10. There is one unconformity in the figure. Explain where the unconformity is within the diagram, what type of unconformity it is, and how you know this? 11. What kind of faults are faults A and B? Which one implies extensional forces and which implies compressional forces? Explain how you come to these conclusions. 12. Bed 04 is a Sandstone. Describe a sedimentary environment that a sandstone could form? 13. If this Sandstone was metamorphosed what would this rock be called? (one-word answer) 14. Bed 07 is a Conglomerate. Describe a sedimentary environment that a conglomerate could form? 15. Bed 09 is a Shale (mudstone). Describe a sedimentary environment that shale could form?
16. If this rock (shale) underwent low-grade metamorphism what rock would it be called? (one-word answer) 17. Dike A was dated at 10 My, the Batholith was dated at 50 My, and fossils from Beds 7-10 have age ranges between 60 and 75 My. Given the information available, what is the possible range of ages for Dike B? Explain your reasoning.