PPT-Relative Vs. Absolute Dating of Rocks

Relative Age Dating of Rocks Put these people in order from youngest to oldest A B C D Relative age Dating of Rocks Can you tell the exact ages of these people Dating Relative age dating . Relative Dating. Relative Age. : the age of something compared to something else.. Absolute Age. : the actual age of a rock or an event . The Principal of Superposition. In undisturbed sedimentary rock layers (strata), the oldest rock is at the bottom. . 01: . Geologic Time . Scale. Huge sections of time are broken down into smaller groups of time:. E. ons, Eras, . P. eriods, and . E. pochs. Eon. is the largest time block. . (kind of like what we would think of as years).. Fossils found in SEDIMENTARY ROCKS. The lower the sediment layer is, the older the fossils of the layer will be.- Law of Superposition. As time elapses, more and more sediment layers form to create the layers of sedimentary rocks.. Absolute Dating. Calculating the age of rocks, fossils, or strata in years.. Gives a numerical value.. Example: A rock is found to have an absolute age of 300 million years. . Radiometric Dating. Radiometric dating uses radioactive decay of minerals in rocks and fossils to determine a rock or fossil’s absolute age. . Relative Dating. To . determine the relative age of different rocks, geologists start with the assumption that unless something has happened, in a sequence of sedimentary rock layers, the newer rock layers will be on top of older ones. This is called the Rule of Superposition.. Paleontologist. Relative dating. Law of superposition. Fossil. Any preserved evidence of an organism. Formed in sedimentary rock. Example fossil types: trace, molds, casts, replacement, petrified, amber and mummification. What do rocks look like?. Is this what you thought of?. Or this?. OR THIS????. OR…. THIS!!!!. Rocks can be small or big!. We are going to learn 3 different rocks and how they are made!. Igneous Rock. The ultimate purpose – . To find a spouse.. Further benefits:. To enjoy a good . time. socially.. To develop proper etiquette and social . graces. .. To develop your personality.. To test your . capability. Estimating age in the archaeological record is the primary focus of archaeological sciences. Being able to establish a timescale is what sets archaeologists apart from other disciplines. . However. , relative dating techniques are still fundamental to the discipline.. The ultimate purpose – To find a spouse.. Further benefits:. To enjoy a good . time. socially.. To develop proper etiquette and social . graces. .. To develop your personality.. To test your . capability. The ultimate purpose – To find a spouse.. Further benefits:. To enjoy a good . time. socially.. To develop proper etiquette and social . graces. .. To develop your personality.. To test your . capability. Quiz Tomorrow!!!!!. Relative Age of Rock. Absolute Age . Uses half life data to determine age of rock. Ex) A sample is found that contains 25 grams of the parent isotope and 75 grams of the daughter isotope. If the half life is 2 years, what is the age of the rock sample?. reported experiencing physical dating violence in the last yearNearlyfemaleteensteensfemalereported experiencing sexual dating violence in the last year26 of women15 of men2827262825242830232829222430 Absolute vs. Relative . Age. Relative Age. Determining the age of an object in relation to other objects. “Estimate”. Index Fossils, Rock layers. Example. : A friend tells you . he . has 2 brothers – one that’s older than .