Compare and contrast the differences in effective dating ranges for the various radiometric
dating techniques discussed in the textbook. Why do these differences occur and how can they
be used to more precisely constrain absolute dates of geologic materials? What will be an ideal response?
The student should discuss the fact that half-lives of radiometric systems vary widely. Carbon
14, for example, has a half-life of 5730 yrs., whereas the rubidium-strontium system has a halflife
of 48.8 billion years. These varying half-lives allow the scientist to analyze materials from a
wide variety of time periods
You might also like to view...
Under which of the following conditions do hurricanes dissipate?
A. when they move over land B. when upper-level outflow of air exceeds surface inflow of air C. when they move over warm water D. when they move into a region of weak vertical wind shear
The average temperature on Earth has increased by over 2°C since 1980.
Answer the following statement true (T) or false (F)
An mT air mass moving toward San Diego from the eastern tropical Pacific
A) is forced to rise by mountains. B) must cross a desert. C) is modified by the cold California current. D) becomes warmer and more humid.
Describe the factors that affect the distance and the rate at which sound travels in the ocean. Would you expect sound to travel faster through warm or cold water? Shallow or deep? Why?