North Carolina's geologic history is kept in the _________________! The rocks are grouped together in units called ______________________ Geologic Belts are rock groups with ________________ characteristics and history In North Carolina, there are _____ different belts of igneous, sedimentary, and metamorphic rocks that have similar geologic history. __________________________________________________________ Earth’s Geologic History Earth's history spans over a length of _____________________years Geologists have _____________________ that time into units based on major geologic events and ____________________. We discovered that some organisms _____________________during certain time units, so when geologists find those remains in rocks, we know exactly which time unit a rock is from ________________ are the preserved remains and traces of past life forms. They are found in sedimentary rocks. ___________________________________________________________________ Geologic Time Scale The time scale was created to show the_______________________ in Earth's history From ________________________to _________________, the units of time are: 1.______________________________ 2._________________________ 3.________________________________ 4._________________________ Each unit of time is recognized by the fossils it contains! Examples: 1.Age of____________________2. Age of________________________ 3. Age of__________________________ 4._____________________________ __________= Million Years Ago We know that Wilmington is in the _______________________Belt and some of the rocks here formed ______________million years ago!