Modeling Planetary Accretion
Isaacman and Sagan (1977) say that any model of solar system formation should be able to account for three main solar system characteristics. What are these characteristics? (3 points)
Explain how the ACRETE model determines whether a particular dust grain sticks to an accretion nucleus. Include any relevant mathematical expressions in your answer, and define the variables used. (3 points)
What additional requirement is necessary for the accretion nucleus to collect gas? (2 points)
Compare the two values of 0, and use this information to explain why the model generates terrestrial and Jovian planets. (4 points)
Describe and explain the results of varying the ratio of gas to dust K. (3 points)
What happens at nebular masses below 0.02 Me? Why is 0.2 M. the upper limit? (4 points)
The range of nebular mass from 0.02 M. to 0.2 M. is much smaller than the nebular mass of 1 M., which is used by astronomers studying the earlier history of the solar system. Why do Isaacman and Sagan not find this discrepancy problematic? (3 points)
Describe and explain the outcome of changing the eccentricity (r) of the dust particles in the nebula. (5 points)
Would you say that the model is sensitive or insensitive to changes in the distribution of density in the nebula? Support your conclusion with examples from the paper. (5 points)
Isaacman and Sagan (1977) find that the model produces planetary spacings that appear to be consistent with Trout-Bode-type laws, even for very unusual planetary systems. How do the authors interpret this outcome? (2 points)
What are the limitations and advantages of radiative forcings for modern climate change?
Technical Paper Review
Give in a list format the main objectives of the manuscript.
List the main accomplishments of this research.
Why are these accomplishments important?
Did the author(s) have a critical literature review? Support with arguments.
In your opinion, what is the gap in the literature, regarding this research topic?
Give some details about the methodology used to accomplish the research objectives of the manuscript.
Give a list of the main research results.
What makes these results unique?
Are there any limitations to the research results presented in this manuscript?
List some recommendations for future work, related to the research topic of this manuscript
Fact vs Truth
What is the difference between facts and truth?How is it different from Opinion? Cite some examples.
If something is factual, does it make true? If something is true to you, does it make it factual? Cite some examples.
Give some examples within the geology context illustrating the difference between facts and truths. Better if it is within the Philippines context. Make sure to cite your sources.
What are the positive and negative impacts of fracking? Should fracking be banned? How should we dispose of fracking fluids and what is the impact of disposal (Google “Oklahoma fracking”)? Should it be mandatory for government agencies to provide the public with accurate scientific information, regardless of economic consequences?
Is nuclear energy a safe method for energy production? Should we be building more nuclear plants as a low-carbon emission alternative for power plants? What are the major concerns with nuclear energy?
How do you view the development of offshore wind farms? Comment on this specific case.
https://www.njspotlightnews.org/2021/10/ciattarelli-gop-challenger-nj-governor-climate-change-alternative-energy-solar-power-offshore-wind/ (Links to an external site.)
Offshore wind efforts are opposed by some Green organization such as Clean Ocean Action (COA).
https://cleanoceanaction.org/fileadmin/editor_group1/Issues/Wind/OSW-COATalkingPoints-GENERAL.pdf (Links to an external site.)
Feasibility of Renewable Energy in CA to Meet Projected or Current Demand:Discuss?
Basin analysis assessed exercise
The practical involves the interpretation of four seismic profiles that cross one another,
creating a grid. The overall objectives are to map out distinctive sedimentary (acoustic)
facies, interpret the depositional architecture, and evaluate the controls on the basin
Map the fault network,
Map the salt bodies,
Identify depositional packages,
Identify the geographical distribution of thinning/thickening of packages relative to the
position of the salt diapirs.
Hihglight pre-salt, syn-salt and post-salt sequences
What kinds of animals will you see? How close will you get? Your tourists may need a
camera with a telephoto lens to get the pictures they will want to remember the tour.
Are there any plants you will want to make sure each tourist sees?
Include pictures and descriptions of them. Are they poisonous, endangered? Look for
pictures and information about each stop of your tour. As you save pictures on your
page make sure to also save the urls in a reference content block.
Develop a description of why someone should go on your tour. Make it exciting and use
a thesaurus if needed to find more word choices.
Climate change is an important topic right now. Share information that you found about
climate change. looking for well supported information so check your source.
Complete the Seasons lesson path and add to your study guide and Biome project.
Make sure to talk about places to get souvenirs. What’s a good tour if you can’t bring
home something to show everyone. Will you be going through different countries and
need different types of currency? How about credit cards? Phone service? You might
want to include a picture of people you will encounter and items that might be hand
crafted in the area. Project Work Day.
Geological Field Mapping
For example, does the stratigraphic sequence indicate any changes in sea level or
deposition in any particular tectonic environment? How does this relate to the structural evolution of
As you describe the history of your own area from your own evidence you should also discuss your
findings using the published literature about the area. Compare your own mapping units, formations
and members with any published stratigraphy for your area.
Do you disagree with the acceptedwisdom, or is your story broadly consistent with other people’s ideas? How does your area fit in with the wider interpretation of the geological history of the region?
Current Event Essay
How does the topic of the article affect the Earth as a whole?
How does this article relate to my life?
What is a Critique?
Analyze the pros and cons of the article. Is the author presenting good science or just opinion? Is the author a recognized expert? How could the article be improved?
What is Good Science?
The instructions above ask you to evaluate whether the article is ‘good science’. DO NOT just tell me it is ‘good science’.
Explain why. Start by asking yourself these questions:
Did they try and use the scientific method (Ch. 1)? Did they support the conclusions with facts? Did they provide the facts or a reference to them? If the answer is no to any of those basic questions, then it’s probably not good quality science, and you probably need to find at least 1 more supplemental article to add additional support to your essay.