Stratigraphic Principles
Who is Nicholas Steno, around when did he live and what is he known for in the world of geology?
List the 5 Laws of Stratigraphy and briefly define each of the five laws..
What is the difference between a conformable and an unconformable contact?
What is the difference between these two types of geologic contacts: a nonconformity and an intrusive contact.
What is meant by the term “hiatus” and what do they have to do with unconformable sedimentary contacts?
Explain the specific geologic relations or criteria that distinguishes each of the 3 types of unconformities. It is definitely instructive to make sketches of the types of unconformities. It’s not required here, but it will help you in preparation for the upcoming quiz on this topic.
The geologic time scale was developed long before geologists/geophysicists were able to actually date the age of rocks.
Generally, what is the original primary basis for succession of Eras, Periods, Epochs etc….that make up the geologic time scale, particularly the part of the time scale from the begining of the Paleozoic to present-day?
Who was James Ussher, and if Ussher’s estimate of when the earth was created was correct, what how old would the earth be today?
What discovery led the way to the addition of absolute ages to the geologic time scale.
What are the oldest radiometric ages determined for rocks on earth, and from where did those oldest rocks come from? [You may wish to go online for this information]
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