the pull down menu options are: Sill: 65, 100, 6, 89, 79 Dike: 65, 100, 6, 89, 7

Question

the pull down menu options are:

Sill: 65, 100, 6, 89, 79

Dike: 65, 100, 6, 89, 79

Ash 1: 65, 100, 6, 89, 79

Ash 2: 65, 100, 6, 89, 79

Basalt flow: 65, 100, 6, 89, 79

Question 6 1 pts What is the minimum (youngest) age that one can assign to sandstone 4? Express your answer in millions of years, so 65,000,000 years, would be written as 65 DQuestion 7 1 pts Using your absolute ages for the different igneous rock units and ash layers and your knowledge about relative ages, when do you think the dinosaurs went extinct? Express your answer in millions of years, so 65,000,000 years, would be written as 65

Explanation / Answer

question 6.

Minimum age assigned to sandstone is 10 (million ) years.When environmental conditions are right like pressure and temperature are available , the formation of sandstone is quite rapid.

question 7.

Dinosaurs went extint about 65(million ) years ago.

They become extint during cretaceous period.

Question 5.

Sill- 100

Dike-6

Ash 1-65

Ash 2-79

Basalt flow- 89

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