Ticking away the moments that make up a dull day …. Geologic Time. Geologic Time. Relative Dating – placing rocks and events in their proper sequence of formation Absolute Dating – specifying the actual number of years that have passed since an event occurred. Law of superposition.
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Developed by Nicolaus Steno in 1669 while
scanning the Italian country side.
An unconformity is a break in the rock record
produced by erosion and/or nondeposition of
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Matching of rocks of similar ages in different
regions is known as correlation
Reviewing basic atomic structure
Electrons – negatively charged particles that orbit the nucleus
Spontaneous changes (decay) in the structure of atomic nuclei
Types of radioactive decay