« previous next »

Author Question: Is carbon-14 an appropriate isotope for dating the metamorphic rocks at the bottom of the Grand ... (Read 95 times)

tfester

  • Hero Member
  • *****
  • Posts: 534
on: Jul 14, 2018
Is carbon-14 an appropriate isotope for dating the metamorphic rocks at the bottom of the Grand Canyon? Explain.
 
  What will be an ideal response?

Question 2

After describing India's future potential energy resources, evaluate which seems to be the most promising.
 
  What will be an ideal response?


allisonblackmore

  • Sr. Member
  • ****
  • Posts: 330
Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: No, it's not. The rocks at the bottom of the Grand Canyon are igneous and metamorphic, and they are also really, really old. Carbon-14's usefulness is limited to living things (which consume carbon-14 every time they photosynthesize or eat) from the relatively recent past (because carbon-14 has such a short half-life, it decays very quickly over geologic time).

Answer to Question 2

Answers should include coal, oil, nuclear, hydroelectric, and imported sources.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Approximately one in three babies in the United States is now delivered by cesarean section. The number of cesarean sections in the United States has risen 46% since 1996.

Did you know?

Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.

Did you know?

In the ancient and medieval periods, dysentery killed about ? of all babies before they reach 12 months of age. The disease was transferred through contaminated drinking water, because there was no way to adequately dispose of sewage, which contaminated the water.

Did you know?

Approximately one in four people diagnosed with diabetes will develop foot problems. Of these, about one-third will require lower extremity amputation.

Did you know?

Warfarin was developed as a consequence of the study of a strange bleeding disorder that suddenly occurred in cattle on the northern prairies of the United States in the early 1900s.

The Carbon Cycle The Carbon Cycle
Calcium Carbonate, an Important Carbon Sink Calcium Carbonate, an Important Carbon Sink
The oxygen isotope curve illustrates the ratio between 16O and 18O. The oxygen isotope curve illustrates the ratio between 16O and 18O.
A typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path ... A typical air vane sensor with the cover removed. The movable arm contacts a carbon resistance path ...
Variable Gases: Carbon Dioxide Variable Gases: Carbon Dioxide
Some of the most commonly used radiometric dating methods Some of the most commonly used radiometric dating methods
Video: What is Cholesterols? Introduction to Lipoproteins

For a complete list of videos, visit our video library