Radiometric dating online activity


11-Nov-2020 01:11

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.

You will investigate Steno's Laws, radiometric dating, and then visit an interactive site that will help you better understand how to tell time - with geology! As you proceed through Assignment 4, be sure to compare your answers from "If Scientists Think. ." to the actual methods scientists use to estimate the age of prehistoric objects.

Column 2(Transvaal): Granular IF, banded IF, argillite, basinal carbonates, platform carbonates, quartz arenite, and crystalline basement rock.

Column 3 (Hamersley): argillite, banded IF, argillite, Banded IF, Argillite, basinal carbonated, banded IF, argillite, and quartz arenite.

Play a game that tests your ability to match the percentage of the dating element that remains to the age of the object.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.The discovery of radioactivity and its application to dating rocks is perhaps one of the greatest scientific achievements affecting the Earth Sciences.

With the discovery of radioactive isotopes more then one hundred years ago, scientists quickly realized that the radioactive decay of materials found in rocks could be used to date the rocks and consequently change the "relative" geologic time scale into an "absolute" time scale.

Activity 8 is taken from Investigating Earth: A Geology Laboratory Text (1997) by Wiswall and Fletcher.



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