Determination of the age of fossil, Biology

Assignment Help:

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.

Related Discussions:- Determination of the age of fossil

Functions of synergids, Functions of Synergids Ultra structurally the ...

Functions of Synergids Ultra structurally the structure and concentration of cell organelles reveals that synergids are metabolically active. The following Wee functions are a

Define keratomalacia - micronutrient deficiencies, Define Keratomalacia - M...

Define Keratomalacia - Micronutrient Deficiencies? This is a condition of rapid destruction and liquefaction of full thickness of cornea, leading lo prolapse of iris, resulting

Under which form is nitrogen fixed by living beings, Q. Under which form is...

Q. Under which form is nitrogen fixed by living beings? The Most living beings can't use molecular nitrogen to obtain nitrogen atoms. The Producers fix nitrogen primarily from

What is community ecology explain their characterstics, What is Community E...

What is Community Ecology explain their characterstics? Community Ecology: In ecological terms, a community consists of an assemblage of all of the populations living and int

The social environment - stress of hospitalization, The Social Environment ...

The Social Environment   When the child is admitted to the hospital his social environment is totally changed and all health team members are strangers for him. It is your resp

Plants - rapidly flowing waters, Plants - Rapidly Flowing Waters Among...

Plants - Rapidly Flowing Waters Among the plants only small, well attached forms, such as sessile algae can survive here. Thus, due to the presence of only a few plants, the n

Explain re- pera at ions and other interventions, Explain Re- pera at ions ...

Explain Re- pera at ions and Other Interventions ? These are required for residual VSD with significant shunt, residual RV obstruction and pulmonary valve regurgitation in a fe

Intermediary metabolism, High Energy Compounds Primary need of the animal b...

High Energy Compounds Primary need of the animal body from the nutrients is energy. Free energy is the term used to denote the energy available to do useful work. Anabolic or synth

Fundamental structure of a virus, Q. What is the fundamental structure of a...

Q. What is the fundamental structure of a virus? Viruses are constituted of genetic material RNA or DNA covered by a protein capsule also known as a capsid. Some viruses, like

What is st elevation, Q. What is ST Elevation? Although a stable LV ane...

Q. What is ST Elevation? Although a stable LV aneurysm may manifest ST-segment elevation in the precordial leads at rest. Some subjects with normal hearts show a degree of elev

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd