Periods or Epochs Of The Geologic Time Scale

Periods or Epochs Of The Geologic Time Scale

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Periods or Epochs Of The Geologic Time Scale

 

GEO -Discussion – Week 6

 

Choose one of the periods or epochs of the geologic time scale and describe it.  Be sure to include its numeric age, any major fossil groups that lived then and any major geological events that took place at that time.  Feel free to include anything else that you might discover

such as climate, oxygen levels or extinctions.

 

Alternatively, you can choose a landform near to you, one that you’ve visited or one that you find interesting.  Describe that landform including its location, type, elevation and the age of the rock.  Compare the age of the landform to the ages of the rocks adjacent to or surrounding it.

Now, take a look at two other classmates’ responses and identify where you agree or disagree with their conclusions.

GEO – Assignment – Week 6

Using the geologic map of Virginia, answer the following questions: GEO101_Lab6_Module6_Map.pdf

Is the region in the extreme northwest corner to the Potomac River strongly folded or strongly faulted?

Is the region from the southeast corner to Harrison Island along the Potomac strongly folded or strongly faulted?

In the southwestern part of the map, along the Shenandoah River, the sediments are only Quaternary in age, yet they are surrounded by much older Cambrian sediments.  How do you explain this?

In the southeastern corner of the map, locate Rockville and Gaithersburg.  Notice that they are separated by the Plummer’s Island Fault.  Is Rockville moving atop Gaithersburg or is Gaithersburg moving atop Rockville?

Find Martinsburg, WV, in the extreme northwest corner.  Now locate Martinsburg, MD, which is just to the to the east of Harrison Island and Mason Island along a bend in the Potomac in the south central area of the map.  Which is surrounded by the older rock?

Locate Long Marsh Run just south of the West Virginia/ Virginia border on the southwestern side of the map.  Which way is it flowing?
How many different ages of rock would you encounter along its course?

In the middle image at the bottom, to the far right, you see that the younger Prettyboy Schist lies beneath the older Mather Gorge Formation.  How can older rock be found atop younger rock?

Locate the oval, brown rocks near the center of the map.  What geologic feature is this?

RUBRIC
Excellent Quality 95-100%	Introduction 45-41 points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.		Literature Support 91-84  points The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.			Methodology 58-53 points Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met.
Average Score 50-85%	40-38 points More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided.		83-76  points Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration.			52-49  points Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met.
Poor Quality 0-45%	37-1 points The background and/or significance are missing. No search history information is provided.		75-1 points Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration.			48-1 points There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met
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