Discussion: Time & Geology / 3 Fossil-based Field Trips
1. Post to this discussion and respond to two of your peers.There must be 24 hours between initial post and responses. This week’s discussion requires you to relate the topics covered in the Geologic TIme to a current geological event or condition. Check out the sites listed on the Resources tab for starting points in your research.
2. Post to this discussion with your reactions to the Virtual Field trip. Share with the class a significant point that impressed you, and the reasons why.
Instructional Materials
Open Source textbook, Physical Geology, 2nd Edition — https://opentextbc.ca/physicalgeology2ed/ — READ Chapter 8.
Supplemental Text –> Chapter(s) on “Time and Geology” in a “Earth Revealed” text
Take the Virtual Field Trips
1. https://a1082-79358197.cluster36.canvas-user-content.com/courses/1082~1503713/files/1082~79358197/course%20files/200780-RStemp2/_assoc/JeholBiota/JeholBiota/index%20China.htm?context_id=1082~1503713&context_type=Course&download=1&id=10820000079358197&inline=1
Watch the Earth Revealed videos
1.https://www.learner.org/series/earth-revealed/10-geologic-time/
2.https://www.learner.org/series/earth-revealed/11-evolution-through-time/
AND THEN FINALLY ANSWER THESE QUESTIONS
Post to this discussion and respond to two of your peers.There must be 24 hours between initial post and responses. This week’s discussion requires you to relate the topics covered in the Geologic TIme to a current geological event or condition. Check out the sites listed on the Resources tab for starting points in your research.
Post to this discussion with your reactions to the Virtual Field trip. Share with the class a significant point that impressed you, and the reasons why.
AND THEN RESPOND TO THESE TWO PEERS
1.The field trip this week was interesting because we were able to learn about the fossils and why and how they were preserved. This might be ignorant of me but when I think of China, I do not think about volcanos so that was something new for me to learn that volcanos erupted in Cina and preserved fossils of all kinds. It was interesting to also know that scientist think this are of Jehol Province is an evolutionary cradle for many species.
The second field trip we went on was to Kansas which I always appreciate because I think Kansas is a beautiful state and it nice to live more about it. I have driven to Emporia several times and a couple times to Eureka and have noticed the sedimentary rocks and it never occurred for me to stop and look for fossils. I might have to do that next time I drive through those areas. I found it interesting that we can find fossils such as shark teeth in Ks from the ancient oceans.
In chapter 8 we learned about fossils and geologic time. The video explained geologic time really well. The video states that the earth is billions of years old. Geologic time helps separate and break down those years. I also found the professors notes to also be a great deal of help explaining things such as geologic time. I am sharing this chart in the discussion because it tells us the summary of life and the geological eras of insect, reptile, or animal.
2.I really enjoyed the three virtual field trips this week. Calling the Jehol Biota the “Mesozoic Pompeii” really helped me understand how significant this area is and how important the volcanic eruptions were in preserving all these different fossils. What I found most interesting about the first field trip, Jeohl Biota of Laiong, China, was that the discoveries like Sinosauropteryx prima have reshaped our understanding of the evolutionary link between dinosaurs and birds.
What I found most interesting about the Kansas, through time virtual field trip was reading about the Cambrian Period. I didn’t realize that the Cambrian ended in a mass extinction that killed around 75% of trilobites and other marine life. The part of the field trip explaining the future of continental plate movement was also fascinating to read about. It’s shocking to think that the continents we live on now will be almost unrecognizable in 250 million years.