Paper, Order, or Assignment Requirements
Requirement of Lab #6
How long are geologic periods relative to the age of the Earth?
This lab consists of three parts. Part one is a modelling assignment, in parts two and three you will apply the geologic dating principles for relative and absolute dating.
Link to procedure sheet
Complete the procedure.
Earth Science 11
Unit 6 Lab procedure
|Stromatolites||3000||Pangea breaks up|
|Ordovician||490||Rocky Mtn. Orogeny||180|
|Taconic Orogeny||475||First birds||150|
|First fish||430||First mammals||100|
|Early reptiles||340||Early humans||2.0|
|Pennsylvanian||323||Quarternary Ice Ages||1.5|
5) Add diagrams to your timeline that are appropriate to each event.
The following samples were collected an percentage of parents isotopes remaining in them are listed. Use the absolute dating curve from the page on Absolute Dating and the table on the same page to determine the age of each sample.
Meteorite from Antarctica ç 45 % Uranium – 238 remaining
Sample of gneiss from Canadian Shield ç 12 % Potassium – 40 remaining
Burned remains of wood from fire pit ç 30 % Carbon – 14 remaining
Record all information and submit it to your instructor
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