subject
Physics, 22.06.2019 21:10 truelove9288

Which radioisotope is used in dating geological formations?

Answers

ansver
Answer from: lucy773
U-238

Explanation:

Let's begin by explaining that for radioactive geological dating (also called radioisotope dating) in which radioactive impurities were selectively incorporated when the fossil materials were formed, it is very useful to compare it with a naturally occurring radioisotope having a known half-life.

Now, taking into account that the fossils are millions and millions of years old, radioisotopes are needed that exceed this measure.

To understand it better:

The longer the half-life of a radioisotope, the greater its utility for estimating fossil ages or geological formations.

In this sense, uranium-238 (U238) has a half-life of 4,470 million years, therefore, it is among the most commonly used radioisotopes for fossil and geological dating.

ansver
Answer from: liannaswitzer
(2) U-238 is the radioisotope used in dating geological formations. Uranium-238 has a half-life of 4.46 billion years, which makes it suitable to date such old formations.
The other options do not have such long durabilities and half-lives.
ansver
Answer from: 22dpickr

U- 238

Explanation:

Uranium-238 is used to date many geological samples, especially on materials that are thousands to over a million years old

ansver
Answer from: connersitte1221l
The radioisotope U-238 is primarily used in dating geologic formation. This method is used for dating sediments from either a marine or playa lake environment. Because this method is used for the period between 100,000 years and 1,200,000 years before the present, it aids in bridging the gap between the carbon-14 dating method and the potassium-argon dating method.

Other questions on the subject: Physics

image
Physics, 21.06.2019 17:50, absolyoshi101
Which of the following represents an upside-down image? ​
Answers: 2
image
Physics, 22.06.2019 03:30, munchyswish
Astudent is working in the lab to determine how time affect impulse the student keeps the force the same in each row but changes impact the time some data is shown witch trial has the greatest a student is working in the lab to determine how time affect impulse the student keeps the fours the same in each row but change is the impact time some data shown witch trial has the greatest impulse
Answers: 3
image
Physics, 22.06.2019 04:40, hooplikenari
Can as soft drink at room temperature is put into refrigerator so that it will cool. would you model the can of soft drink a closed system or an open system. explain
Answers: 1
image
Physics, 22.06.2019 06:30, kalialee2424
From 0 to 5 seconds john pushed a box 5 meters. from 5 to 10 seconds, paul pushed the same box another 5 meters. who did more work? a. john b. paul c. john and paul did the same amount of work.
Answers: 1
You know the right answer?
Which radioisotope is used in dating geological formations?...

Questions in other subjects:

Konu
English, 02.02.2021 21:10
Questions on the website: 13569777