Geology/Expert Profile
Expertise
I can answer questions regarding surface earth processes and the chemical transformations that sediments and rocks undergo with burial. I can also answer questions regarding deep time, the evolution of the elements, and the last 4.5 billion years of earth history. I specialize in metallic ore forming processes, the major geologic time periods when they were produced and what they tell us about the evolution of our planet. Learn more about my professional interests at Stratamodel.com.
Experience in the area
I am a professional consulting geologist with a background in the petroleum, mining, environmental, and geotechnical industries with over 25 years of experience.
Education/Credentials
Ph.D., Geology, University of California at Berkeley, 1984 M.A., Geology, University of California at Berkeley, 1980 B.S., Geology, San Jose State University, 1978
Average Ratings
Recent Reviews from Users
K = Knowledgeability C = Clarity of Response T = Timeliness P = Politeness| User | Date | K | C | T | P | Comments |
|---|---|---|---|---|---|---|
| Eva | 11/11/09 | 10 | 10 | 10 | 10 | |
| Katelin | 11/04/09 | 10 | 10 | 10 | 10 | Thank you Mr. Bell, You gave me ..... |
| Steve | 10/25/09 | 10 | 10 | 10 | 10 | Many thanks. Very helpful. Steve |
| Garry | 10/07/09 | 10 | 10 | 10 | 10 | |
| Darell | 08/28/09 | 10 | 10 | 10 | 10 | thank you for your fast and informative ..... |
Recent Answers from Dr Thomas Bell
2009-11-10 lava and feather rock:
Eva, When water freezes, it expands by about 9%. Have you have ever tried to cool a bottle of wine in your freezer and forgot about it? When the wine freezes, it either breaks the bottle or if you
2009-11-06 The Poles:
Allan, Earth's geographic poles have remained more or less in the same place for the last 4 billion years. Like a child's top, there is a little wobble but the points on Earth that mark its rotational
2009-11-05 School Project:
Robbie, My life as a geologist has been jam packed with cool stuff. Long ago, I saw a TV program about Continental Drift and how geologists where just then starting to accept this theory as a grand
2009-11-04 The Big One:
Katelin, Pardon my math. The odds of dying in an earthquake between 1980 and 2001 are closer to 1 in 528,000. (Estimated population in 1990 divided by average earthquake deaths per year) It is
2009-10-25 Where does "new water" come from?:
Steve, In the early days of this solar system, comets and asteroids collided with each other and pelted anything with enough gravitational force to draw them in including our young planet. The densely
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