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Steno developed a set of Laws (Steno's Laws) to help explain his method of inferring the ages of geological structures.These laws are a set of hypotheses that the scientific community accepts as a starting basis without absolute proof.Who's to say that the rocks a particular scientist is studying have not been displaced from their original positions?Now that you have discovered the method that scientists originally used to date geological features, you may be questioning the accuracy of this dating method.After all, it is possible that rock layers can be disturbed, overturned, and altered in both natural and unnatural ways.In Assignment 3, we began exploring the age of the Earth. Through presentation and discussion of individual ideas, the class reached agreements as to the best way to complete each of the prompts.You worked in small groups and as a class to complete the "If Scientists Think. Today's assignment will allow you to compare and contrast your ideas to some of the actual methods scientists used to develop an estimation of the age of the Earth.Following this introduction, there are several links to different sites concerning the methods scientists use to assist them in estimating the age of the Earth.
While this may sound questionable at first, keep in mind that we also accept the Law of Gravity with out direct proof.Visit the following site and read about each of Steno's laws (principles).Keep these principles in mind as you progress through the rest of the activities in this assignment.It would benefit your understanding of this material if you studied the rest of this website on your own, but it is not required for class.Because this assignment is linked with your work in Assignment 3, you will have "If Scientists Think. Before scientists had modern technology to assist them in their research, they had to use their power of observation to infer the relative ages of the rocks they were studying.
The process of Relative Dating was established by Nicholaus Steno in the 1600's.