Determination of the age of fossil, Biology

DETERMINATION OF THE AGE OF FOSSIL -

  1. Radioactive clock (Boltwood-1907) - Half life of uranium is 4.5 billion years.
  2. This means half of total uranium disintegrates into lead in 4.5 billion years 235u decays to 206pb. By calculating the amount of lead in a rock, one can approximately estimate the age of fossil.
  3. Radio carbon method - (W.E Libby - 1950).
  4. Potassium argon method - Potassium is a common element found in al rocks.
Posted Date: 10/8/2012 9:13:37 AM | Location : United States







Related Discussions:- Determination of the age of fossil, Assignment Help, Ask Question on Determination of the age of fossil, Get Answer, Expert's Help, Determination of the age of fossil Discussions

Write discussion on Determination of the age of fossil
Your posts are moderated
Related Questions
Define Oven - Nutritional Biochemistry? Oven is a general term used to describe a chamber or enclosed compartment for heating, baking, or roasting food, as in a stove, or for f

How do the repairing enzymes of the genetic system act? There are enzymes inside the cells that detect errors or alterations in DNA molecules and begin a repair of those errors

In many animals, glucose, rather than starch, is transported by the blood through the body to all the cells. Starches in many foods are digested to yield glucose. Why is the digest

Q. Show the Natural selection of taxonomist? Natural selection associated with successful reproduction maintains a basic similarity of the reproductive feature of flowers, frui

Determine the use of  OPG An OPG is used to see the possibility for an anterior loop which is found to extend about 1-3 mm anterior to the mental foramen in about 12 per cent

What is polygenic inheritance? How does it work?  The Polygenic inheritance, also called as quantitative inheritance, is the gene interaction in which a given trait is conditio

Could any of the following features be useful in a gateway vector; (i) Origin of replication (ii) multiple cloning site (iii) blue/white selection (iv) M13 forward and rev

Treatment of travelers'diarrhea  The most common cause of travelers' diarrhea, usually a self-limited illness lasting several days, is infection with noninvasive enterotoxigeni

Describe Gastrovascular cavity in detail? The name given to the internal cavity of cnidarians. A blind-ended (incomplete) gut with only one opening. Food is to be digested and

Meninges (Singular-Meninx) - Ceverings of brain. By infection in meninges meningitis or brain fever is caused. These menings are internally lined by squamous epitheliu