Geologic Time

The following resources will help you find information on geologic time.

 Online Encyclopedias & Databases

World Book Encyclopedia
Offers a combined search feature of encyclopedias, research tools, biography center, magazines, websites and much more.
     

  Student Resource Center Gold - Offers more than 1,100 full-text periodicals and newspapers, primary sources, creative works, and multimedia, including hours of video and audio clips and pod casts


 Internet Sites

Basic Questions in Paleontology: http://books.google.com/books?id=xpkgrQujkYYC&pg=PA13&lpg=PA13&dq=%22geologic+time%
22,+animal,+plant+life&source=web&ots=gDuwcIK60y&sig=qIYAlHvG_gRe09S5V6uER7Izf9c&hl=en&sa=X
&oi=book_result&resnum=8&ct=result#PPA15,M1

Exploring Time: http://exploringtime.org/?page=segments

Extinction: http://nitro.biosci.arizona.edu/courses/EEB105/lectures/extinction/extinction.html

Geologic Ages of Earth History: http://www.dinosauria.com/dml/history.htm

Geologic Time: http://cas.bellarmine.edu/tietjen/Ec&Ev_Distance_learning/Hell/geologic_time.htm

Geology.com - Geologic Timescale: http://geology.com/time.htm

NASA - Geologic Time: http://rst.gsfc.nasa.gov/Sect2/Sect2_1b.html

Paleontology - Timeline of Life: http://www.paleontology.esmartstudent.com/table.html

Rockman's Geologic Time Chart: http://www.rocksandminerals.com/geotime/geotime.htm

Smithsonian Institute - Geologic Time: The Story of a changing Earth: http://paleobiology.si.edu/geotime/main/index.html

UCMP - Tour of Geologic time: http://www.ucmp.berkeley.edu/exhibits/geologictime.php

UCMP - Web Geological Time Machine: http://www.ucmp.berkeley.edu/help/timeform.html

USGS - Geologic Time: http://pubs.usgs.gov/gip/geotime/contents.html

USGS - Geologic Time - Site Map: http://www.ucmp.berkeley.edu/sitemap.php

If you do not find what you're looking for in the above resources, try the search tips listed below.
 

 Internet Search Tips

  1. Type the URL (web site address) of a search directory/engine in the address box: ex: www.google.com or http://scholar.google.com/, etc.
     
  2. (Be sure to type the address exactly the way you see it, including any uppercase letters and punctuation).
     
  3. Type in keyword(s). (If your keyword has two or more parts such as: "Mt. St. Helens", be sure to put quotes around it so that the search engine only finds the Internet sites on Mt. St. Helens as opposed to all of the sites containing the word Mt. plus all of the sites containing the word St. plus all of the sites containing the word Helens.
     

  4. If you would like to search for something specific about Mt. St. Helens, try a combined keyword search by adding a comma followed by a space and your other search term. For instance; if I wanted to find out about the 1980 eruption of Mt. St. Helens,  I would enter the following:

    "Mt. St. Helens", eruption, 1980

    Hit Enter on your keyboard, or click on Search, then scan the description of the "hits" (entries) and click on the links that sound best.
     

  5. Be sure to evaluate each Internet site for the following:

     

  6. Remember: if you choose to use any information (text or graphics) found on an Internet source, 
    you must include it in your bibliography.

Remember:  YOU MUST CITE EVERY RESOURCE YOU USED to gather information on your 
Works Cited (Bibliography) page.  Use the Works Cited Guide to access MLA format.
 


 

Created by Liza Zandonella, Library Media Specialist.

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