Isotopic dating sydney basin

05 Jan

All ordinary matter is made up of combinations of chemical elements, each with its own atomic number, indicating the number of protons in the atomic nucleus.

Additionally, elements may exist in different isotopes, with each isotope of an element differing in the number of neutrons in the nucleus.

Techniques for the study of mycorrhiza Academic Press, London.

Molecular and enzymatic groupings of fungi from tropical orchids of Western Australia and their patterns of tissue colonisation.

This work was published in 2004 by our group in the journal Science.

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Selection of inoculant vesicular-arbuscular mycorrhizal fungi. In: Norris JR, Read DJ, Varma AK (eds) Methods in Microbiology.

More fundamental outcomes of this work in China led to refinement of a new technique of annealing and chemically abrading zircon crystals prior to dating of single zircon crystals from volcanic ash-fall tuffs.

This new isotopic analysis approach is now referred to as Chemical Abrasion Isotope Dilution Thermal Ionisation Mass Spectrometry (CA-IDTIMS) and has been adopted by most laboratories undertaking U-Pb single crystal zircon dating worldwide.

This work has essentially been done in northern, low-latitude localities where the global reference sections for system and stage boundaries are defined.

Correlation of the global redference sections with high-latitude and southern hemisphere sequences is however highly tenuous due to the endemic nature of biota in these regions.