Global Warming

  1-Describe radiometric dating and discuss three prerequisites that must be met in order to obtain a reliable radiometric date on a granite batholith. What are the various methods of radiometric dating that may be used? 2-Name the three major types of unconformities and describe a sequence of events that might produce each. Be specific and include rock types and processes that each includes. What does this tell you about the events that occurred during the gap in the rock record?