Suppose a scientist finds a rock with an interesting fossil. Curious to know the age of the fossil, she takes the rock to a lab. The lab determines the amount of rubidium (Rb) and strontium (Sr) in the rock. The scientist is familiar with radiometric dating and knows that she can now calculate the age of the rock, 1, using an isochron. The Rb-Sr isochron equation is Sr. Sro [edr – 1] 86 Rb, 86 86 °Sr. °Sr, Rb, = 3.807 and 86 89.60. In a published table, she finds that Using the lab's values, she calculates the isotope ratios as - 0.7129. She also finds that the decay constant, the ratio of strontium-87 to strontium-86 at the formation of the rock was Sro %3D 2, for rubidium-87 is 1.42 × 10-1". Use the equation and provided data to calculate t. Put your answer in scientific notation and round to the nearest tenth. years x10 What is the approximate age of the rock in billions of years? Round to the nearest tenth. billions of years

Suppose a scientist finds a rock with an interesting fossil. Curious to know the age of the fossil, she takes the rock to a lab. The lab determines the amount of rubidium (Rb) and strontium (Sr) in the rock. The scientist is familiar with radiometric dating and knows that she can now calculate the age of the rock, 1, using an isochron. The Rb-Sr isochron equation is Sr. Sro [edr – 1] 86 Rb, 86 86 °Sr. °Sr, Rb, = 3.807 and 86 89.60. In a published table, she finds that Using the lab's values, she calculates the isotope ratios as - 0.7129. She also finds that the decay constant, the ratio of strontium-87 to strontium-86 at the formation of the rock was Sro %3D 2, for rubidium-87 is 1.42 × 10-1". Use the equation and provided data to calculate t. Put your answer in scientific notation and round to the nearest tenth. years x10 What is the approximate age of the rock in billions of years? Round to the nearest tenth. billions of years

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter11: Evidence Of Evolution

Section: Chapter Questions

Problem 2CT

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