Cation ratio dating

Understand how decay and half life are used in radiometric dating.

Play a game that tests your ability to match the percentage of the dating element that remains to the age of the object.

Titration curve for a strong acid and a strong base Watch this simulation of how a titration curve for a strong acid and a strong base is obtained.

Scroll down the page to the heading Chapter 16 to find the simulation.

Extra Weblink 14.10During a three-year research project looking at how to make a tiny gas sensor from carbon nanotubes, two of the young research scientists decided to try and explain to us what carbon nanotubes are.

Here are five short science video programmes doing just that.

This online resource provides a clear and concise summary of measurement and uncertainty.

The different meanings of terms such as 'accuracy', 'precision' and 'uncertainty' are explained and the appropriate use of significant figures and units in the mathematical manipulation of experimental data is illustrated with simple examples.

The enrichment and occurrence of the trace elements, and of the minerals in the coal, are attributed to the fragmental parent rock during diagenesis and coalification.

A change of variables is used to account for stoichiometric closure, followed by projection pursuit multivariate transformation, multivariate Gaussian simulation, and conditioning to the drill hole data.

Subsequently, a decision tree classification algorithm is used to convert the simulated values into a geological category for each target block and realisation. The mountain is situated between the latitudes of 43° and 44° N and the longitudes from 22°16′ to 23°00′ E.

The determination of the prior (ignoring drill hole data) and posterior (conditioned to drill hole data) probabilities of categories provides a means of identifying the blocks for which the interpreted category disagrees with the simulated quantitative covariates. The mountain is situated between the latitudes of 43° Stara Planina (also known as the Balkan mountain range) is known for numerous occurrences and deposits of uranium and associated radionuclides. Uranium exploration and radioactivity testing on Stara Planina began back in 1948.

Full article Stara Planina (also known as the Balkan mountain range) is known for numerous occurrences and deposits of uranium and associated radionuclides. Uranium has also been mined in the zone of Kalna, within the Janja granite intrusive.

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